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1

An analysis of sources and predictability of geomagnetic storms.  

E-Print Network (OSTI)

??Solar transient eruptions are the main cause of interplanetary-magnetospheric disturbances leading to the phenomena known as geomagnetic storms. Eruptive solar events such as coronal mass… (more)

Uwamahoro, Jean

2011-01-01T23:59:59.000Z

2

Correlation between SQUID and fluxgate magnetometer data for geomagnetic storms.  

E-Print Network (OSTI)

??ENGLISH ABSTRACT: Geomagnetic storms are primarily driven by the rapid transfer of energy from the solar wind to the magnetosphere. The mechanism of energy transfer… (more)

Phiri, Temwani-Joshua

2013-01-01T23:59:59.000Z

3

The Contribution of Magnetospheric Currents to Ground Magnetic Perturbation during Geomagnetic Storms.  

E-Print Network (OSTI)

?? A geomagnetic storm is triggered in response to a disturbance in the solar wind. The earth's ring current gets energized during a geomagnetic storm,… (more)

Patra, Swadesh

2013-01-01T23:59:59.000Z

4

Letter to the Editor Geomagnetic storm eects at low latitudes  

E-Print Network (OSTI)

Letter to the Editor Geomagnetic storm eects at low latitudes R. G. Rastogi School of Physics, Ahmedabad 380 009, India Received: 30 April 1998 / Accepted: 3 September 1998 Abstract. The geomagnetic corrected for geomagnetic latitudes. The disturbance daily variation of H at equatorial stations showed

Paris-Sud XI, Université de

5

Geomagnetic storm dependence on the solar flare class  

E-Print Network (OSTI)

Content. Solar flares are often used as precursors of geomagnetic storms. In particular, Howard and Tappin (2005) recently published in A&A a dependence between X-ray class of solar flares and Ap and Dst indexes of geomagnetic storms which contradicts to early published results. Aims. We compare published results on flare-storm dependences and discuss possible sources of the discrepancy. Methods. We analyze following sources of difference: (1) different intervals of observations, (2) different statistics and (3) different methods of event identification and comparison. Results. Our analysis shows that magnitude of geomagnetic storms is likely to be independent on X-ray class of solar flares.

Yermolaev, Y I; Yermolaev, Yu. I.

2006-01-01T23:59:59.000Z

6

Geomagnetic storm dependence on the solar flare class  

E-Print Network (OSTI)

We compare published results on flare-storm dependences and discuss possible sources of the discrepancy. We analyze following sources of difference: (1) different intervals of observations, (2) different statistics and (3) different methods of event identification and comparison. Our analysis shows that magnitude of geomagnetic storms is likely to be independent on X-ray class of solar flares.

Yu. I. Yermolaev; M. Yu. Yermolaev

2006-01-01T23:59:59.000Z

7

Coronal mass ejections and geomagnetic storms: Seasonal variations  

Science Conference Proceedings (OSTI)

The well-established semiannual geomagnetic cycle, with peak activity near the equinoxes, has been attributed to the angle between the solar rotation axis and the geomagnetic dipole, which modulates the GSM Bz component in the interplanetary magnetic field (MF). This effect is predicted to be accentuated in the shocked plasma ahead of fast coronal mass ejections (CMESs); its relevance to the internal fields of the ejecta is unclear. CMEs, particularly fast events driving interplanetary shocks, are the cause of almost all large geomagnetic storms near solar maximum. We use a set of CMEs identified by ISEE-3 observations of bidirectional electron streaming, plus IMF and geomagnetic data, to investigate the semiannual geomagnetic variation and its relation to CMEs. We find that the geomagnetic effectiveness of CMEs and post-shock solar wind is well-ordered by speed and by the southward component of the IMF in GSM coordinates, as well as by preexisting geomagnetic conditions. The post-shock seasonal effect, with geomagnetic effectiveness maximizing near April 5 for negative GSEQ By and near October 5 for positive GSEQ By, is identifiable in shock and shock/CME events, but not for CME events without leading shocks. When used to complement the more fundamental causal parameter of CME speed, the seasonal effect appears to have value for prediction of geomagnetic storms.

Phillips, J.L.; Gosling, J.T.; McComas, D.J.

1992-07-01T23:59:59.000Z

8

SciTech Connect: "geomagnetic storms"  

Office of Scientific and Technical Information (OSTI)

geomagnetic storms" Find geomagnetic storms" Find How should I search Scitech Connect ... Basic or Advanced? Basic Search Advanced Ă— Advanced Search Options Full Text: Bibliographic Data: Creator / Author: Name Name ORCID Title: Subject: Identifier Numbers: Research Org.: Sponsoring Org.: Site: All Alaska Power Administration, Juneau, Alaska (United States) Albany Research Center (ARC), Albany, OR (United States) Albuquerque Complex - NNSA Albuquerque Operations Office, Albuquerque, NM (United States) Amarillo National Resource Center for Plutonium, Amarillo, TX (United States) Ames Laboratory (AMES), Ames, IA (United States) Argonne National Laboratory (ANL), Argonne, IL (United States) Argonne National Laboratory-Advanced Photon Source (United States) Atlanta Regional Office, Atlanta, GA (United States) Atmospheric Radiation Measurement (ARM)

9

Statistics of the largest geomagnetic storms per solar cycle (18441993) D. M. Willis1,*  

E-Print Network (OSTI)

Statistics of the largest geomagnetic storms per solar cycle (1844±1993) D. M. Willis1,* , P. R- tistics to the ®rst, second and third largest geomagnetic storms per solar cycle for nine solar cycles is extended to fourteen solar cycles (1844±1993). The intensity of a geomagnetic storm is measured

Paris-Sud XI, Université de

10

The most prominent ionospheric effects produced by intense geomagnetic storms at middle and low-latitudes,  

E-Print Network (OSTI)

The most prominent ionospheric effects produced by intense geomagnetic storms at middle and low (EIA), were recorded during only a few geomagnetic storms during 2000-2006. Based on observations of ionosphere TEC response to more than 15 geomagnetic storms, we found that combination of intensive dawn

Dessert, CĂ©line

11

New insights on geomagnetic storms from observations and modeling  

SciTech Connect

Understanding the response at Earth of the Sun's varying energy output and forecasting geomagnetic activity is of central interest to space science, since intense geomagnetic storms may cause severe damages on technological systems and affect communications. Episodes of southward (Bzgeomagnetic conditions are associated either with coronal mass ejections (CMEs) and possess long and continuous negative IMF Bz excursions, or with high speed solar wind streams (HSS) whose geoeffectiveness is due to IMF Bz profiles fluctuating about zero with various amplitudes and duration. We show examples of ring current simulations during two geomagnetic storms representative of each interplanetary condition with our kinetic ring current atmosphere interactions model (RAM), and investigate the mechanisms responsible for trapping particles and for causing their loss. We find that periods of increased magnetospheric convection coinciding with enhancements of plasma sheet density are needed for strong ring current buildup. During the HSS-driven storm the convection potential is highly variable and causes small sporadic injections into the ring current. The long period of enhanced convection during the CME-driven storm causes a continuous ring current injection penetrating to lower L shells and stronger ring current buildup.

Jordanova, Vania K [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

12

New insights on geomagnetic storms from observations and modeling  

Science Conference Proceedings (OSTI)

Understanding the response at Earth of the Sun's varying energy output and forecasting geomagnetic activity is of central interest to space science, since intense geomagnetic storms may cause severe damages on technological systems and affect communications. Episodes of southward (Bzgeomagnetic conditions are associated either with coronal mass ejections (CMEs) and possess long and continuous negative IMF Bz excursions, or with high speed solar wind streams (HSS) whose geoeffectiveness is due to IMF Bz profiles fluctuating about zero with various amplitudes and duration. We show examples of ring current simulations during two geomagnetic storms representative of each interplanetary condition with our kinetic ring current atmosphere interactions model (RAM), and investigate the mechanisms responsible for trapping particles and for causing their loss. We find that periods of increased magnetospheric convection coinciding with enhancements of plasma sheet density are needed for strong ring current buildup. During the HSS-driven storm the convection potential is highly variable and causes small sporadic injections into the ring current. The long period of enhanced convection during the CME-driven storm causes a continuous ring current injection penetrating to lower L shells and stronger ring current buildup.

Jordanova, Vania K [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

13

Large Geomagnetic Storms Associated with Limb Halo Coronal Mass Ejections  

E-Print Network (OSTI)

Solar cycle 23 witnessed the observation of hundreds of halo coronal mass ejections (CMEs), thanks to the high dynamic range and extended field of view of the Large Angle and Spectrometric Coronagraph (LASCO) on board the Solar and Heliospheric Observatory (SOHO) mission. More than two thirds of halo CMEs originating on the front side of the Sun have been found to be geoeffective (Dst = 45deg) have a 20% shorter delay time on the average. It was suggested that the geomagnetic storms due to limb halos must be due to the sheath portion of the interplanetary CMEs (ICMEs) so that the shorter delay time can be accounted for. We confirm this suggestion by examining the sheath and ejecta portions of ICMEs from Wind and ACE data that correspond to the limb halos. Detailed examination showed that three pairs of limb halos were interacting events. Geomagnetic storms following five limb halos were actually produced by other disk halos. The storms followed by four isolated limb halos and the ones associated with interact...

Gopalswamy, Nat; Xie, Hong; Akiyama, Sachiko; Makela, Pertti

2009-01-01T23:59:59.000Z

14

Enhancement in Surface Atmospheric Pressure Variability Associated with a Major Geomagnetic Storm  

E-Print Network (OSTI)

Observational studies indicate that there is a close association between geomagnetic storm and meteorological parameters. Geomagnetic field lines follow closely the isobars of surface pressure . A Physical mechanism linking upper atmospheric geomagnetic storm disturbances with tropospheric weather has been proposed by the author and her group where it is postulated that vertical mixing by turbulent eddy fluctuations results in the net transport upward of positive charges originating from lower levels accompanied simultaneously by downward flow of negative charges from higher levels. The present study reports enhancement of high frequency (geomagnetic storm (Ap index = 246) on 13 march 1989.

A. M. Selvam; S. Fadnavis; S. U. Athale; M. I. R. Tinmaker

1998-07-03T23:59:59.000Z

15

HEPPA 2011 Session 3. 3.6 Radiation belt electron precipitation due to geomagnetic storms: significance to middle  

E-Print Network (OSTI)

HEPPA 2011 Session 3. 3.6 Radiation belt electron precipitation due to geomagnetic storms, Sodankyl¨a, Finland Geomagnetic storms triggered by coronal mass ejections and high-speed solar-90 km altitudes) as a result of a single geomagnetic storm. The study condi- tions were chosen

Ulich, Thomas

16

J. Plasma Fusion Res. SERIES, Vol. 8 (2009) Large Geomagnetic Storms in Relation to CME Related Shocks and Magnetic Clouds  

E-Print Network (OSTI)

We have studied large geomagnetic stormsstorms (93%) are associated with CME related shocks and the related shocks are forward shocks. The geomagnetic storms, which are associated with CME related shocks, are also related to strong X-ray solar flares of category X or M class and most of them are associated with magnetic clouds (60%) also. We have further determined that the magnitude of geomagnetic storms depends upon strength of the shocks, duration of magnetic clouds and speed of the CMEs, which are associated with geomagnetic storms. We have found medium positive correlation between magnitude of geomagnetic storms and speed of associated CMEs with correlation coefficient.49and large negative correlation between magnitude of geomagnetic storms and duration of associated magnetic clouds.We have concluded that coronal mass ejections which are associated with interplanetary shocks, magnetic clouds or combination of both are very much effective in producing geomagnetic storms of higher magnitude.

P. L. Verma; R. S. Gupta; P. K. Chamadia

2008-01-01T23:59:59.000Z

17

ESTB performance under the October 30th 2003 geomagnetic super storm  

Science Conference Proceedings (OSTI)

A regular EGNOS Test Bed (ESTB) data collecting, 24 h per week, and analysis campaign has been developed by Eurocontrol along 2002 and 2003. During this period a geomagnetic storm was experienced on October 29th-31st 2003, degrading the ESTB performance ... Keywords: EGNOS, ESTB, SBAS, ionosphere, storm

M. Hernández-Pajares; J. M. Juan; J. Sanz; Santiago Soley

2005-01-01T23:59:59.000Z

18

Behavior of Plasma and Field Parameters and their Relationship with Geomagnetic Indices during Intense Geomagnetic Storms of Solar Cycle 23  

E-Print Network (OSTI)

A correlative study between the geomagnetic indices and the peak values of various plasma and field parameters during rising, maximum and decay phases as well as during complete solar cycle 23 have been presented. We have also presented the lag/lead analysis between the maximum of Dst and peak values of plasma and field parameters and found that peak values of lag/lead time lies in the +/-10 hr interval. Three geomagnetic storms (GMSs) and associated solar sources observed during these phases of this solar cycle have also been studied and found that GMSs are associated with large flares and halo CMEs.

Joshi, Navin Chandra; Pande, Seema; Pande, Bimal; Pandey, Kavita

2010-01-01T23:59:59.000Z

19

Signatures of storm sudden commencements in geomagnetic H, Y and Z elds at Indian observatories during 19581992  

E-Print Network (OSTI)

Signatures of storm sudden commencements in geomagnetic H, Y and Z ®elds at Indian observatories) impulses in hori- zontal (H), eastward (Y) and vertical (Z) ®elds at four Indian geomagnetic observatories 10±20°W of the geomagnetic meridian. The local time variation of the angle is more westerly during

Paris-Sud XI, Université de

20

Un-decimated discrete wavelet transform based algorithm for extraction of geomagnetic storm sudden commencement onset of high resolution records  

Science Conference Proceedings (OSTI)

The automatic detection of the onset time of the geomagnetic storm sudden commencement (SSC) is of great importance for many applications. The distribution of the power along the frequency axis during the SSC was investigated. This analysis guide us ... Keywords: Automatic detection, CPMN, Geomagnetic storm sudden commencement, MRA (multi resolution analysis), Un-decimated DWT

Ali G. Hafez; Essam Ghamry; Hideki Yayama; Kiyohumi Yumoto

2013-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Statistical properties of geomagnetic measurements as possible precursors for magnetic storms  

E-Print Network (OSTI)

Records of geomagnetic measurements have been analyzed looking for evidences of possible precursors for magnetic storms. With this objective, the main magnetic storms in the period 1998-2002 have been located in Dst index record. Periods immediately before storms and periods well before them were studied by applying a method recently introduced in the literature. Statistical properties of both types of periods have been compared. One of the compared quantities was the slope of the power laws that have been found for some relevant distributions. A systematic deviation between slope distributions was found. This might be the fingerprint of a non self-organized component in records. There has also been found a correlation between slope values and the corresponding storm intensities, which could serve as a probabilistic approach to magnetic storms forecasting. Data is from the low latitude Vassouras Magnetic Observatory.

Andres R. R. Papa; Lilian P. Sosman

2006-05-30T23:59:59.000Z

22

A case-study of the low-latitude thermosphere during geomagnetic storms and its new representation by improved MSIS model  

E-Print Network (OSTI)

A case-study of the low-latitude thermosphere during geomagnetic storms and its new representation geomagnetically disturbed periods are known to exhibit signi®cant deviations from atmospheric model predictions station in India, are successfully reproduced for two moderate geomagnetic storms. Key words. Low

Paris-Sud XI, Université de

23

J. Plasma Fusion Res. SERIES, Vol. 8 (2009) Geomagnetic Storms In Relation With Halo and Partial Halo Coronal Mass Ejections and Disturbances in Solar Wind Plasma Parameters.  

E-Print Network (OSTI)

Coronal mass ejections are most energetic solar events that eject huge amount of mass and magnetic fields into the heliosphere and are widely recognized as being responsible to generate measure disturbances in solar wind plasma parameters and geomagnetic storms in the magnetosphere of the earth. We have studied geomagnetic storms Dst solar flares of different categories. We have found that 74.61 % geomagnetic storms are associated with halo and partial halo coronal mass ejections. The association rate of geomagnetic storms with halo and partial halo coronal mass ejections are found 34.73 % and 65.27% respectively. We have further determined that halo and partial halo coronal mass ejections, which are related to geomagnetic storms, majority of them are associated with M and C, class X-ray solar flares (77%). From the study of geomagnetic storms with disturbances in solar wind plasma parameters, we have determined weak positive correlation between maximum jump amplitude in solar wind plasma density and magnitude of geomagnetic storms and medium positive correlation between maximum jump amplitude in solar wind plasma temperature and magnitude of geomagnetic storms and maximum jump amplitude in solar wind plasma velocity and magnitude of geomagnetic storms. Keywords: Geomagnetic storms. Halo coronal mass ejections. Partial halo coronal mass ejections. Disturbances in solar wind plasma temperature, density and velocity. 1.

P. L. Verma; A. K. Tripathi; Sushil Sharma

2008-01-01T23:59:59.000Z

24

Enhancement of Terrestrial Diffuse X-ray Emission Associated With Coronal Mass Ejection and Geomagnetic Storm  

E-Print Network (OSTI)

We present an analysis of a Suzaku observation taken during the geomagnetic storm of 2005 August 23-24. We found time variation of diffuse soft X-ray emission when a coronal mass ejection hit Earth and caused a geomagnetic storm. The diffuse emission consists of fluorescent scattering of solar X-rays and exospheric solarwind charge exchange. The former is characterized by a neutral oxygen emission line due to strong heating of the upper atmosphere during the storm time, while the latter is dominated by a sum of C V, C VI, N VI, N VII, O VII, and O VIII emission lines due to the enhanced solar wind flux in the vicinity of the exosphere. Using the solar wind data taken with the ACE and WIND satellites,a time correlation between the solar wind and the strong O VII line flux were investigated. We estimated necessary column densities for the solar X-ray scattering and exospheric SWCX. From these results, we argue that a part of the solar wind ions enter inside the magnetosphere and cause the SWCX reaction.

Ezoe, Yuichiro; Yoshitake, Hiroshi; Mitsuda, Kazuhisa; Terada, Naoki; Oishi, Shihoko; Ohashi, Takaya

2011-01-01T23:59:59.000Z

25

Predicting Geomagnetic Storms From Solar-Wind Data Using Time-Delay Neural Networks  

E-Print Network (OSTI)

. We have used time-delay feed-forward neural networks to compute the geomagnetic activity index D st one hour ahead from a temporal sequence of solar wind data. The input data includes solar-wind density n, velocity V and the southward component B z of the interplanetary magnetic field. D st is not included in the input data. The networks implement an explicit functional relationship between the solar wind and the geomagnetic disturbance, including both direct and time-delayed nonlinear relations. In this study we specially consider the influence of varying the temporal size of the input data sequence. The networks are trained on data covering 6600 h, and tested on data covering 2100 h. It is found that the initial and main phases of geomagnetic storms are well predicted, almost independent of the length of the inputdata sequence. However, to predict the recovery phase, we have to use up to 20 h of solar-wind input data. The recovery phase is mainly governed by the ring-current loss...

Gleisner Lundstedt; H. Gleisner; H. Lundstedt; P. Wintoft

1996-01-01T23:59:59.000Z

26

Multiwavelength Study on Solar and Interplanetary Origins of the Strongest Geomagnetic Storm of Solar Cycle 23  

E-Print Network (OSTI)

We study the solar sources of an intense geomagnetic storm of solar cycle 23 that occurred on 20 November 2003, based on ground- and space-based multiwavelength observations. The coronal mass ejections (CMEs) responsible for the above geomagnetic storm originated from the super-active region NOAA 10501. We investigate the H-alpha observations of the flare events made with a 15 cm solar tower telescope at ARIES, Nainital, India. The propagation characteristics of the CMEs have been derived from the three-dimensional images of the solar wind (i.e., density and speed) obtained from the interplanetary scintillation data, supplemented with other ground- and space-based measurements. The TRACE, SXI and H-alpha observations revealed two successive ejections (of speeds ~350 and ~100 km/s), originating from the same filament channel, which were associated with two high speed CMEs (~1223 and ~1660 km/s, respectively). These two ejections generated propagating fast shock waves (i.e., fast drifting type II radio bursts) ...

Kumar, Pankaj; Uddin, Wahab

2011-01-01T23:59:59.000Z

27

A Numerical Investigation of Storm Structure and Evolution during the July 1999 Las Vegas Flash Flood  

Science Conference Proceedings (OSTI)

Severe flash flood storms that occurred in Las Vegas, Nevada, on 8 July 1999, were unusual for the semiarid southwest United States because of their extreme intensity and the morning occurrence of heavy convective rainfall. This event was ...

J. Li; R. A. Maddox; X. Gao; S. Sorooshian; K. Hsu

2003-09-01T23:59:59.000Z

28

A Flash-Flooding Storm at the Steep Edge of High Terrain: Disaster in the Himalayas  

Science Conference Proceedings (OSTI)

Flash floods on the edge of high terrain, such as the Himalayas or Rocky Mountains, are especially dangerous and hard to predict. The Leh flood of 2010 at the edge of the Himalayan Plateau in India is an example of the tragic consequences of such storms. ...

Kristen L. Rasmussen; Robert A. Houze Jr.

2012-11-01T23:59:59.000Z

29

Radial distribution of the inner magnetosphere plasma pressure using low-altitude satellite data during geomagnetic storm: the March 1-8, 1982 Event  

E-Print Network (OSTI)

Plasma pressure distribution in the inner magnetosphere is one of the key parameters for understanding the main magnetospheric processes including geomagnetic storms and substorms. However, the pressure profiles obtained from in-situ particle measurements by the high-altitude satellites do not allow tracking the pressure variations related to the storms and substorms, because a time interval needed to do this generally exceeds the characteristic times of them. On contrary, fast movement of low-altitude satellites makes it possible to retrieve quasi-instantaneous profiles of plasma pressure along the satellite trajectory, using the fluxes of precipitating particles. For this study, we used the Aureol-3 satellite data for plasma pressure estimation, and the IGRF, Tsyganenko 2001 and Tsyganenko 2004 storm time geomagnetic field models for the pressure mapping into the equatorial plane. It was found that during quiet geomagnetic condition the radial pressure profiles obtained coincide with the profiles, obtained ...

Stepanova, M; Bosqued, J M

2007-01-01T23:59:59.000Z

30

A Factorial Analysis of Storm Surge Flooding in Barrow, Alaska  

Science Conference Proceedings (OSTI)

This paper describes work to improve the understanding of the broad range of factors affecting the occurrence of flooding in Barrow, Alaska, using as a basis the series of extreme events that have affected the community over the past 50 years. A ...

Amanda H. Lynch; Leanne R. Lestak; Petteri Uotila; Elizabeth N. Cassano; Lian Xie

2008-03-01T23:59:59.000Z

31

24/11/2010 10:22AGU: Radiation belt electron precipitation due to geomagnetic storms: Significance to middle atmosphere ozone chemistry Page 1 of 2http://europa.agu.org/?view=article&uri=/journals/ja/ja1011/2010JA015599/2010JA015599.xml  

E-Print Network (OSTI)

24/11/2010 10:22AGU: Radiation belt electron precipitation due to geomagnetic storms: Significance precipitation due to geomagnetic storms: Significance to middle atmosphere ozone chemistry Craig J. Rodger Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland Geomagnetic storms triggered

Ulich, Thomas

32

A density-temperature description of the outer electron radiation belt during geomagnetic storms  

Science Conference Proceedings (OSTI)

Electron flux measurements from 7 satellites in geosynchronous orbit from 1990-2007 are fit with relativistic bi-Maxwellians, yielding a number density n and temperature T description of the outer electron radiation belt. For 54.5 spacecraft years of measurements the median value ofn is 3.7x10-4 cm-3 and the median value ofT is 142 keY. General statistical properties of n, T, and the 1.1-1.5 MeV flux J are investigated, including local-time and solar-cycle dependencies. Using superposed-epoch analysis triggered on storm onset, the evolution of the outer electron radiation belt through high-speed-steam-driven storms is investigated. The number density decay during the calm before the storm is seen, relativistic-electron dropouts and recoveries from dropout are investigated, and the heating of the outer electron radiation belt during storms is examined. Using four different triggers (SSCs, southward-IMF CME sheaths, southward-IMF magnetic clouds, and minimum Dst), CME-driven storms are analyzed with superposed-epoch techniques. For CME-driven storms an absence of a density decay prior to storm onset is found, the compression of the outer electron radiation belt at time of SSC is analyzed, the number-density increase and temperature decrease during storm main phase is seen, and the increase in density and temperature during storm recovery phase is observed. Differences are found between the density-temperature and the flux descriptions, with more information for analysis being available in the density-temperature description.

Borovsky, Joseph E [Los Alamos National Laboratory; Cayton, Thomas E [Los Alamos National Laboratory; Denton, Michael H [LANCASTER UNIV

2009-01-01T23:59:59.000Z

33

Geomagnetic activity and its sources during modern solar maximum.  

E-Print Network (OSTI)

??Geomagnetic storms and auroral substorms are manifestations of space weather. They are disturbances in the geomagnetic field caused by solar activity that consists of flare… (more)

Hynönen, Reko

2013-01-01T23:59:59.000Z

34

Specific interplanetary conditions for CIR-, Sheath-, and ICME-induced geomagnetic storms obtained by double superposed epoch analysis  

E-Print Network (OSTI)

The comparison of specific interplanetary conditions for 798 magnetic storms with Dst solar wind as interplanetary drivers of storms: corotating interaction region (CIR), Sheath, interplanetary CME (ICME) including magnetic cloud (MC) and Ejecta, separately MC and Ejecta, and "Indeterminate" type. The data processing was carried out by the method of double superposed epoch analysis which uses two reference times (onset of storm and the minimum Dst index) and make a re-scaling of main phase of storm a such way that after this transformation all storms have equal durations of main phase in new time reference frame. This method reproduced some well-known results and allowed us to obtain some new results. Specifically, obtained results demonstrate high importance of Sheath in generation of magnetic storms as well as a significant differences in properties of MC and Ejecta and in their ge...

Yermolaev, Yu I; Lodkina, I G; Yermolaev, M Yu

2009-01-01T23:59:59.000Z

35

Magnetic Flux of EUV Arcade and Dimming Regions as a Relevant Parameter for Early Diagnostics of Solar Eruptions - Sources of Non-Recurrent Geomagnetic Storms and Forbush Decreases  

E-Print Network (OSTI)

This study aims at the early diagnostics of geoeffectiveness of coronal mass ejections (CMEs) from quantitative parameters of the accompanying EUV dimming and arcade events. We study events of the 23th solar cycle, in which major non-recurrent geomagnetic storms (GMS) with Dst solar sources in the central part of the disk. Using the SOHO/EIT 195 A images and MDI magnetograms, we select significant dimming and arcade areas and calculate summarized unsigned magnetic fluxes in these regions at the photospheric level. The high relevance of this eruption parameter is displayed by its pronounced correlation with the Forbush decrease (FD) magnitude, which, unlike GMSs, does not depend on the sign of the Bz component but is determined by global characteristics of ICMEs. Correlations with the same magnetic flux in the solar source region are found for the GMS intensity (at the first step, without taking into account factors determining the Bz component near t...

Chertok, I M; Belov, A V; Abunin, A A

2012-01-01T23:59:59.000Z

36

The 21 June 1997 Flood: Storm-Scale Simulations and Implications for Operational Forecasting  

Science Conference Proceedings (OSTI)

On 20–21 June 1997, a convective outbreak in Nebraska, Iowa, Illinois, and Wisconsin resulted in two fatalities, eight injuries, and approximately $104 million in damage. The majority of the damage ($92 million) was the result of flooding in ...

Paul J. Roebber; John Eise

2001-04-01T23:59:59.000Z

37

Comment on "A statistical comparison of solar wind sources of moderate and intense geomagnetic storms at solar minimum and maximum" by Zhang, J.-C., M. W. Liemohn, J. U. Kozyra, M. F. Thomsen, H. A. Elliott, and J. M. Weygand, JGR, 2006  

E-Print Network (OSTI)

Conditions in the solar wind resulting in magnetic storms on the Earth are a subject of long and intensive investigations. Recently Zhang et al. (2006), published a paper, where they used superposed epoch analyses method to study solar wind features during 549 geomagnetic storms. Unfortunately, the used methodical approach has not allowed to improve essentially understanding of relation of magnetic storms with conditions in the solar wind, and first of all for the following reasons: (1) they did not take into account of existance of storms generated by different types of solar wind, and (2) they took minimum Dst index time as epoch zero time rather than storm onset.

Yermolaev, Y I; Lodkina, I G; Yermolaev, Yu. I.

2006-01-01T23:59:59.000Z

38

Electric Utility Industry Experience with Geomagnetic Disturbances  

Science Conference Proceedings (OSTI)

A geomagnetic disturbance (GMD) by its nature occurs globally and almost simultaneously. Severe geomagnetic storms cause problems for electric power systems. The vulnerability of electric power systems to such events has apparently increased during the last 10 to 20 years because power system transmission lines have become more interconnected and have increased in length and because power systems are now operated closer to their limits than in the past. In this report, the experience of electric utilities during geomagnetic storms is examined and analyzed. Measured data, effects on power system components, and power system impacts are considered. It has been found that electric power systems are susceptible to geomagnetically induced earth-surface potential gradients as small as a few (2 to 3) volts per kilometer, corresponding to a storm of K-6 intensity over an area of high earth resistivity. The causes and effects are reasonably well understood, but additional research is needed to develop a better understanding of solar-induced geomagnetic storms and the responses of power systems to these types of storms. A better understanding of geomagnetic storms and the power systems' responses to GMDs is needed so that mitigation measures can be implemented that will make power systems less susceptible to severe geomagnetic disturbances. A GMD caused by a large high-altitude nuclear detonation is similar in many ways to that of solar-induced geomagnetic storms except that a nuclear-caused disturbance would be much more intense with a far shorter duration.

Barnes, P.R.

1991-01-01T23:59:59.000Z

39

Electric utility industry experience with geomagnetic disturbances  

SciTech Connect

A geomagnetic disturbance (GMD) by its nature occurs globally and almost simultaneously. Severe geomagnetic storms cause problems for electric power systems. The vulnerability of electric power systems to such events has apparently increased during the last 10 to 20 years because power system transmission lines have become more interconnected and have increased in length and because power systems are now operated closer to their limits than in the past. In this report, the experience of electric utilities during geomagnetic storms is examined and analyzed. Measured data, effects on power system components, and power system impacts are considered. It has been found that electric power systems are susceptible to geomagnetically induced earth-surface potential gradients as small as few (2 to 3) volts per kilometer, corresponding to a storm of K-6 intensity over an area of high earth resistivity. The causes and effects are reasonably well understood, but additional research is needed to develop a better understanding of solar-induced geomagnetic storms and the responses of power systems to these types of storms. A better understanding of geomagnetic storms and the power systems' responses to GMDs is needed so that mitigation measures can be implemented that will make power systems less susceptible to severe geomagnetic disturbances. A GMD caused by a large high-altitude nuclear detonation is similar in many ways to that of solar-induced geomagnetic storms except that a nuclear-caused disturbance would be much more intense with a far shorter duration. 49 refs.

Barnes, P.R.; Rizy, D.T.; McConnell, B.W. (Oak Ridge National Lab., TN (United States)); Taylor, E.R. Jr. (ABB Power Systems, Inc., Pittsburgh, PA (United States)); Tesche, F.M.

1991-09-01T23:59:59.000Z

40

Electric utility industry experience with geomagnetic disturbances  

SciTech Connect

A geomagnetic disturbance (GMD) by its nature occurs globally and almost simultaneously. Severe geomagnetic storms cause problems for electric power systems. The vulnerability of electric power systems to such events has apparently increased during the last 10 to 20 years because power system transmission lines have become more interconnected and have increased in length and because power systems are now operated closer to their limits than in the past. In this report, the experience of electric utilities during geomagnetic storms is examined and analyzed. Measured data, effects on power system components, and power system impacts are considered. It has been found that electric power systems are susceptible to geomagnetically induced earth-surface potential gradients as small as few (2 to 3) volts per kilometer, corresponding to a storm of K-6 intensity over an area of high earth resistivity. The causes and effects are reasonably well understood, but additional research is needed to develop a better understanding of solar-induced geomagnetic storms and the responses of power systems to these types of storms. A better understanding of geomagnetic storms and the power systems` responses to GMDs is needed so that mitigation measures can be implemented that will make power systems less susceptible to severe geomagnetic disturbances. A GMD caused by a large high-altitude nuclear detonation is similar in many ways to that of solar-induced geomagnetic storms except that a nuclear-caused disturbance would be much more intense with a far shorter duration. 49 refs.

Barnes, P.R.; Rizy, D.T.; McConnell, B.W. [Oak Ridge National Lab., TN (United States); Taylor, E.R. Jr. [ABB Power Systems, Inc., Pittsburgh, PA (United States); Tesche, F.M.

1991-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Proceedings: Geomagnetically Induced Currents Conference  

Science Conference Proceedings (OSTI)

Magnetic storms can induce currents in power networks, causing serious consequences for electric utilities. In response to problems experienced by several utilities during the severe magnetic storm of March 13, 1989, EPRI held a conference on geomagnetically induced currents to help define the problems and develop ideas for needed R&D.

1992-06-01T23:59:59.000Z

42

Verification of Low Latitude Ionosphere Effects on WAAS During October 2003 Geomagnetic  

E-Print Network (OSTI)

Verification of Low Latitude Ionosphere Effects on WAAS During October 2003 Geomagnetic Storm S one of the strongest geomagnetic and ionospheric storms of the solar cycle. WAAS user integrity to be the case that this larger structure may exist due to the effects of the geomagnetic storm in the South

Stanford University

43

Floods  

NLE Websites -- All DOE Office Websites (Extended Search)

Floods Floods Nature Bulletin No. 15 May 19, 1945 Forest Preserve District of Cook County Clayton F. Smith, President Roberts Mann, Superintendent of Conservation FLOODS Fish thrive on floods. Then they can gorge themselves on worms, slugs and insects from the inundated bottomlands, or on food washed in from the fields and woods. The recent heavy rains have put the DesPlaines river far out of its banks. Fish from tributaries and bottomland ponds or lakes where they escaped suffocation under the ice last winter, are moving about actively and restocking those stretches of the streams where thousands perished They may even come upstream, over the dams, from the lower river, Very few fish are ever swept downstream over dams. Within the past few days, bullheads, minnows, bluegills and other kinds have been caught, and found to be fat and plump with food

44

Monitoring and Mitigation of Geomagnetically Induced Currents  

Science Conference Proceedings (OSTI)

Solar storms directed at the earth can produce changes in the geomagnetic field through a complex chain of events that starts at the sun and ends at the earth. These solar magnetic disturbances induce slowly varying electric fields at the earth's surface that cause geomagnetically induced currents (GICs) to flow in the earth and on man-made conducting paths such as transmission lines and natural gas pipelines. In the extreme, a large solar storm can damage several transformers that are critical component...

2008-12-23T23:59:59.000Z

45

Flooding and Fire Ants  

E-Print Network (OSTI)

Fire ants can be a serious problem during and after a flood. This publication explains how to protect yourself when you must return to flooded structures or deal with storm debris.

Nester, Paul

2008-08-05T23:59:59.000Z

46

On the response of polar cap dynamics to its solar wind and magnetotail drivers at high levels of geomagnetic activity  

E-Print Network (OSTI)

based on solar wind parameters for the storm of 20 Novemberbased on solar wind parameters for the storm of 20 Novembersolar minimum. The source of the magnetic disturbances observed at the Earth's surface during geomagnetic storms

Gao, Ye

2012-01-01T23:59:59.000Z

47

Acceleration and loss of relativistic electrons during geomagnetic G. D. Reeves, K. L. McAdams, and R. H. W. Friedel  

E-Print Network (OSTI)

Acceleration and loss of relativistic electrons during geomagnetic storms G. D. Reeves, K. L. Mc 2003. [1] We analyze the response of relativistic electrons to the 276 moderate and intense geomagnetic storms spanning the 11 years from 1989 through 2000. We find that geomagnetic storms can either increase

Reeves, Geoffrey D.

48

Mitigation of Geomagnetically Induced Currents in Transformers  

Science Conference Proceedings (OSTI)

Solar storms directed at the earth often produce changes in the geomagnetic field through a complex process of events that starts at the sun and ends at the earth. These solar magnetic disturbances (SMDs) induce slowly varying electric fields at the earthsurface that cause currents known as geomagnetically induced currents (GICs) to flow in the earth and on man-made conducting paths, such as transmission lines and natural gas pipelines. GICs can damage equipment and disrupt proper operation of the electr...

2006-12-05T23:59:59.000Z

49

Flooding and Fire Ants (Spanish)  

E-Print Network (OSTI)

Fire ants can be a serious problem during and after a flood. This publication explains how to protect yourself when you must return to flooded structures or deal with storm debris.

Nester, Paul

2008-08-05T23:59:59.000Z

50

Nuclear Magnetohydrodynamic EMP, Solar Storms, and Substorms  

E-Print Network (OSTI)

In addition to a fast electromagnetic pulse (EMP), a high altitude nuclear burst produces a relatively slow magnetohydrodynarnic EMP (MHD EMP), whose effects are like those from solar storm geomagnetically induced currents (SS GIC). The MHD EMP electric field E solar storms E > 10^-2 V/m and lasts >10^3 sec. Although the solar storm electric field is lower than MHD EMP, the solar storm effects are generally greater due to their much longer duration. Substorms produce much smaller effects than SS GIC, but occur much more frequently. This paper describes the physics of such geomagnetic disturbances and analyzes their effects.

Mario Rabinowitz; A. P. Sakis Meliopoulos; Elias N. Glytsis; George J. Cokkinides

2003-07-12T23:59:59.000Z

51

Solar magnetic elds and geomagnetic events. Alexei A. Pevtsov 1 and Richard C. Can eld  

E-Print Network (OSTI)

1 Solar magnetic #12;elds and geomagnetic events. Alexei A. Pevtsov 1 and Richard C. Can#12;eld clouds. We have carried out two studies of solar magnetic #12;elds and geomagnetic events that bear the large-scale solar dipolar magnetic #12;eld pointed southward. We examined geomagnetic storms temporally

Pevtsov, Alexei A.

52

What happens when the geomagnetic field reverses?  

E-Print Network (OSTI)

During geomagnetic field reversals the radiation belt high-energy proton populations become depleted. Their energy spectra become softer, with the trapped particles of highest energies being lost first, and eventually recovering after a field reversal. The radiation belts rebuild in a dynamical way with the energy spectra flattening on the average during the course of many millennia, but without ever reaching complete steady state equilibrium between successive geomagnetic storm events determined by southward turnings of the IMF orientation. Considering that the entry of galactic cosmic rays and the solar energetic particles with energies above a given threshold are strongly controlled by the intensity of the northward component of the interplanetary magnetic field, we speculate that at earlier epochs when the geomagnetic dipole was reversed, the entry of these energetic particles into the geomagnetic field was facilitated when the interplanetary magnetic field was directed northward. Unlike in other compleme...

Lemaire, Joseph F

2012-01-01T23:59:59.000Z

53

Nuclear Magnetohydrodynamic EMP, Solar Storms, and Substorms  

E-Print Network (OSTI)

In addition to a fast electromagnetic pulse (EMP), a high altitude nuclear burst produces a relatively slow magnetohydrodynarnic EMP (MHD EMP), whose effects are like those from solar storm geomagnetically induced currents (SS GIC). The MHD EMP electric field E 10^-2 V/m and lasts >10^3 sec. Although the solar storm electric field is lower than MHD EMP, the solar storm effects are generally greater due to their much longer duration. Substorms produce much smaller effects than SS GIC, but occur much more frequently. This paper describes the physics of such geomagnetic disturbances and analyzes their effects.

Rabinowitz, M; Glytsis, E N; Cokkinides, G J; Rabinowitz, Mario; Glytsis, Elias N.; Cokkinides, George J.

1992-01-01T23:59:59.000Z

54

Can WAAS Availability Be Inferred From Geomagnetic Data? An Analysis Seebany Datta-Barua, Todd Walter, Juan Blanch, Per Enge  

E-Print Network (OSTI)

Can WAAS Availability Be Inferred From Geomagnetic Data? An Analysis Seebany Datta-Barua, Todd magnetosphere-ionosphere coupling is to be on alert when the planetary index of geomagnetic activity Kp reaches availability, for the known WAAS storm (i.e. low-availability) days and the geomagnetic indices of Kp and Dst

Stanford University

55

New York City's Vulnerability to Coastal Flooding  

Science Conference Proceedings (OSTI)

New York City, New York (NYC), is extremely vulnerable to coastal flooding; thus, verification and improvements in storm surge models are needed in order to protect both life and property. This paper highlights the Stony Brook Storm Surge (SBSS) ...

Brian A. Colle; Frank Buonaiuto; Malcolm J. Bowman; Robert E. Wilson; Roger Flood; Robert Hunter; Alexander Mintz; Douglas Hill

2008-06-01T23:59:59.000Z

56

Magnetic Storms  

Science Conference Proceedings (OSTI)

... magnetic reversal. As there is no predictive science of geomagnetism, we currently lack even simple forecasts. Our scientific ...

2010-10-05T23:59:59.000Z

57

Terrestrial Response To Eruptive Solar Flares: Geomagnetic  

E-Print Network (OSTI)

During the interval of August 1978- December 1979, 56 unambiguous fast forward shocks were identified using magnetic field and plasma data collected by the spacecraft. Because this is at a solar maximum we assume the streams causing these shocks are associated coronal mass ejections and eruptive solar flares. For these shocks we shall describe the shock- storm relationship for the level of intense storms storms. We will also present for the solar physicist a summary of the interplanetary /magnetosphere functions, based on the reconnection process. We will d by giving an overview of the long-term evolution of geomagnetic storms such those associated with the seasonal and solar cycle distributions. 1. Introduction Because the em...

Walter Gonzalez Instituto; Walter D. Gonzalez; Bruce T. Tsurutani

1989-01-01T23:59:59.000Z

58

Modelling geomagnetic activity data  

Science Conference Proceedings (OSTI)

Strong geomagnetic activity is a hazard to electronics and electric power facilities. Assessment of the actual geomagnetic activity level from local magnetometer monitoring therefore is of importance for risk assessment but also in earth sciences and ... Keywords: geomagnetism, neuro fuzzy modelling, self organizing map, signal processing, wavelets

Ernst D. Schmitter

2008-01-01T23:59:59.000Z

59

Geomagnetic Temporal Spectrum Catherine Constable 1 GEOMAGNETIC TEMPORAL SPECTRUM  

E-Print Network (OSTI)

Geomagnetic Temporal Spectrum Catherine Constable ­1 GEOMAGNETIC TEMPORAL SPECTRUM Catherine: +1 858 534 8090 For the Encyclopedia of Geomagnetism and Paleomagnetism Editors, David Gubbins and Emilio Herrera-Bervera for Encyclopedia of Geomagnetism and Paleomagnetism, July 7, 2005 #12;Geomagnetic

Constable, Catherine G.

60

Long-term variations of geomagnetic activity and their solar sources  

E-Print Network (OSTI)

Geomagnetic activity in each phase of the solar cycle consists of 3 parts: (1) a floor below which the geomagnetic activity cannot fall even in the absence of sunspots, related to moderate graduate commencement storms; (2) sunspot-related activity due to sudden commencement storms caused by coronal mass ejections; (3) graduate commencement storms due to high speed solar wind from solar coronal holes. We find that the changes in the floor depend on the global magnetic moment of the Sun, and on the other side, from the height of the floor we can judge about the amplitude of the sunspot cycle.

Kirov, B; Georgieva, K; Nepomnyashtaya, E V; Shelting, B D

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Solar Storm Closely Watched Worldwide | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storm Closely Watched Worldwide Storm Closely Watched Worldwide Solar Storm Closely Watched Worldwide March 9, 2012 - 10:14am Addthis While this week's solar storm captures the interest of scientists, researchers and people around the world, the Energy Department works with others to monitor the storm's potential impact on the nation's electrical grid. | Image credit: NOAA. While this week's solar storm captures the interest of scientists, researchers and people around the world, the Energy Department works with others to monitor the storm's potential impact on the nation's electrical grid. | Image credit: NOAA. Kenneth Friedman Senior Policy Advisor in the Office of Electricity Delivery and Energy Reliability The solar storm that is capturing the interest of scientists, researchers and people around the world is a geomagnetic disturbance from the sun.

62

Storm Surge and “Certain Death”: Interviews with Texas Coastal Residents following Hurricane Ike  

Science Conference Proceedings (OSTI)

Hurricane Ike made landfall near Galveston, Texas, on 13 September 2008 as a large category 2 storm that generated significant storm surge and flooding. This article presents findings from an empirical case study of Texas coastal residents’ ...

Rebecca E. Morss; Mary H. Hayden

2010-07-01T23:59:59.000Z

63

New York City Storm Surges: Climatology and an Analysis of the Wind and Cyclone Evolution  

Science Conference Proceedings (OSTI)

A climatological description (“climatology”) of storm surges and actual flooding (storm tide) events from 1959 to 2007 is presented for the New York City (NYC) harbor. The prevailing meteorological conditions associated with these surges are also ...

Brian A. Colle; Katherine Rojowsky; Frank Buonaito

2010-01-01T23:59:59.000Z

64

In cooperation with the Vermont Agency of Natural Resources Department of Environmental Conservation SIMULATION OF THE EFFECTS OF STREAMBED-MANAGEMENT PRACTICES ON FLOOD LEVELS IN VERMONT  

E-Print Network (OSTI)

resulted in rapid runoff and severe flooding in parts of Vermont. During the storm, streambed and streambank erosion

unknown authors

1997-01-01T23:59:59.000Z

65

Geo-magnetic Disturbances (GMD): Monitoring, Mitigation, and Next Steps  

Science Conference Proceedings (OSTI)

The North American power grid may be increasingly susceptible to the effects of geo-magnetic disturbances (GMDs) caused by solar storms. Without adequate steps to mitigate these effects, severe GMDs may pose a risk to power system reliability. This report summarizes information that industry experts and North American utilities presented at a recent NERC workshop on GMD mitigation and related GMD topics. It supplements this information with a review of the latest GMD literature to provide an up-to-date s...

2011-12-30T23:59:59.000Z

66

Geomagnetic Effects on Atmospheric Neutrinos  

E-Print Network (OSTI)

Geomagnetic effects distort the zenith angle distribution of sub--GeV and few--GeV atmospheric neutrinos, breaking the up--down symmetry that would be present in the absence of neutrino oscillations and without a geomagnetic field. The geomagnetic effects also produce a characteristic azimuthal dependence of the $\

Paolo Lipari; T. K. Gaisser; Todor Stanev

1998-03-09T23:59:59.000Z

67

U - Energy Information Administration  

U.S. Energy Information Administration (EIA)

... earth slide), flood, geomagnetic storm, or avalanche. Foreign Interference, includes objects such as aircraft, machinery, vehicles, kites, ...

68

Application of Airborne Passive Microwave Observations for Monitoring Inland Flooding Caused by Tropical Cyclones  

Science Conference Proceedings (OSTI)

Inland flooding from tropical cyclones is a significant factor in storm-related deaths in the United States and other countries, with the majority of tropical cyclone fatalities recorded in the United States resulting from freshwater flooding. ...

Courtney D. Buckley; Robbie E. Hood; Frank J. LaFontaine

2009-10-01T23:59:59.000Z

69

Evaluation of Tools Used for Monitoring and Forecasting Flash Floods in the United States  

Science Conference Proceedings (OSTI)

This paper evaluates, for the first time, flash-flood guidance (FFG) values and recently developed gridded FFG (GFFG) used by the National Weather Service (NWS) to monitor and predict imminent flash flooding, which is the leading storm-related ...

Jonathan J. Gourley; Jessica M. Erlingis; Yang Hong; Ernest B. Wells

2012-02-01T23:59:59.000Z

70

Organization of Flash-Flood-Producing Precipitation in the Northeast United States  

Science Conference Proceedings (OSTI)

Heavy precipitation and flash flooding have been extensively studied in the central United States, but less so in the Northeast. This study examines 187 warm-season flash flood events identified in Storm Data to better understand the structure of ...

Stephen M. Jessup; Stephen J. Colucci

2012-04-01T23:59:59.000Z

71

Geomagnetic Reversals: Rates, Timescales, Preferred Paths,  

E-Print Network (OSTI)

Geomagnetic Reversals: Rates, Timescales, Preferred Paths, Statistical Models and Simulations: Geomagnetic reversals, Reversal rates, Paleointensity, Statistics of Geodynamo September 30, 2001 #12;Abstract Paleomagnetic data on geomagnetic reversals are divided into two general categories: times of occurrence

Constable, Catherine G.

72

Air Showers and Geomagnetic Field  

E-Print Network (OSTI)

The influence of the geomagnetic field on the development of air showers is studied. The well known International Geomagnetic Reference Field was included in the AIRES air shower simulation program as an auxiliary tool to allow calculating very accurate estimations of the geomagnetic field given the geographic coordinates, altitude above sea level and date of a given event. Our simulations indicate that the geomagnetic deflections alter significantly some shower observables like, for example, the lateral distribution of muons in the case of events with large zenith angles (larger than 75 degrees). On the other hand, such alterations seem not to be important for smaller zenith angles. Global observables like total numbers of particles or longitudinal development parameters do not present appreciable dependences on the geomagnetic deflections for all the cases that were studied.

A. Cillis; S. J. Sciutto

1999-07-31T23:59:59.000Z

73

Automatic prediction of solar flares and super geomagnetic storms.  

E-Print Network (OSTI)

??Space weather is the response of our space environment to the constantly changing Sun. As the new technology advances, mankind has become more and more… (more)

Song, Hui

2008-01-01T23:59:59.000Z

74

Geomagnetic Storms and Long-Term Impacts on Power Systems  

Science Conference Proceedings (OSTI)

Pacific Northwest National Laboratory was commissioned to study the potential impact of a severe GIC event on the western U.S.-Canada power grid (referred to as the Western Interconnection). The study identified long transmission lines (length exceeding 150 miles) that did not include series capacitors. The basic assumption for the study is that a GIC is more likely to couple to long transmission lines, and that series capacitors would block the flow of the induced DC GIC. Power system simulations were conducted to evaluate impacts to the bulk power system if transformers on either end of these lines failed. The study results indicated that the Western Interconnection was not substantially at risk to GIC because of the relatively small number of transmission lines that met this criterion. This report also provides a summary of the Hydro-Québec blackout on March 13, 1989, which was caused by a GIC. This case study delves into the failure mechanisms of that event, lessons learned, and preventive measures that have been implemented to minimize the likelihood of its reoccurrence. Finally, the report recommends that the electric power industry consider the adoption of new protective relaying approaches that will prevent severe GIC events from catastrophically damaging transformers. The resulting changes may increase the likelihood of smaller disruptions but should prevent an unlikely yet catastrophic national-level event.

Kirkham, Harold; Makarov, Yuri V.; Dagle, Jeffery E.; DeSteese, John G.; Elizondo, Marcelo A.; Diao, Ruisheng

2011-12-31T23:59:59.000Z

75

Wave–Mean Flow Interaction in the Storm-Time Thermosphere: A Two-Dimensional Model Simulation  

Science Conference Proceedings (OSTI)

A two-dimensional pole-to-pole numerical model with background solstitial winds has been used to study the global dynamical response of the thermosphere to high-latitude energy inputs associated with a model geomagnetic storm. This model storm ...

D. G. Brinkman; S. V. Venkateswaran; R. L. Walterscheid; A. D. Richmond

1992-04-01T23:59:59.000Z

76

The Madison County, Virginia, Flash Flood of 27 June 1995  

Science Conference Proceedings (OSTI)

Between 25 and 27 June 1995, excessive rainfall and associated flash flooding across portions of western Virginia resulted in three fatalities and millions of dollars in damage. Although many convective storms occurred over this region during ...

Michael D. Pontrelli; George Bryan; J. M. Fritsch

1999-06-01T23:59:59.000Z

77

Flash Flood Forecasting: An Ingredients-Based Methodology  

Science Conference Proceedings (OSTI)

An approach to forecasting the potential for flash flood-producing storms is developed, using the notion of basic ingredients. Heavy precipitation is the result of sustained high rainfall rates. In turn, high rainfall rates involve the rapid ...

Charles A. Doswell III; Harold E. Brooks; Robert A. Maddox

1996-12-01T23:59:59.000Z

78

Protection of Coastal Infrastructure under Rising Flood Risk  

E-Print Network (OSTI)

The 2005 hurricane season was particularly damaging to the United States, contributing to significant losses to energy infrastructure—much of it the result of flooding from storm surge during hurricanes Katrina and Rita. ...

Lickley, M.J.

79

Flexible finite-element modeling of global geomagnetic depth sounding  

E-Print Network (OSTI)

Modeling in 2D and 3D for Geomagnetic Depth Sounding (31, 16610. Banks, R. , 1969: Geomagnetic variations and the1997: Introduction to geomagnetic fields. Cambridge Univ Pr.

Ribaudo, Joseph Thomas

2011-01-01T23:59:59.000Z

80

GEOMAGNETIC REVERSALS DRIVEN BY ABRUPT SEA LEVEL CHANGES  

E-Print Network (OSTI)

sea-level changes and geomagnetic reversals, then we have athe dynamo theory of the geomagnetic field is incorrect.preprint LBL-20131 Geomagnetic Reversals Driven by Abrupt

Muller, R.A.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

EVIDENCE FOR COMET STORMS IN METEORITE AGES  

E-Print Network (OSTI)

term periodicities of geomagnetic reversals and galacticAND D. E. MORRIS 1986. Geomagnetic Reversals from Impacts oncraters and glass, and geomagnetic reversals. We suggest

Perlmutter, S.

2008-01-01T23:59:59.000Z

82

Observing geomagnetic induction in magnetic satellite measurements and associated  

E-Print Network (OSTI)

Observing geomagnetic induction in magnetic satellite measurements and associated implications in the midlatitude satellite passes lower than 50 degrees geomagnetic latitude. At higher latitudes, auroral: Satellite induction. Index Terms: 1515 Geomagnetism and Paleomagnetism: Geomagnetic induction; 3914 Mineral

Constable, Steve

83

Orographic Influences on an Oahu Flood  

Science Conference Proceedings (OSTI)

On 2 April 2006, Oahu’s Ko‘olau Mountain Range endured more than 6 h of heavy rain with accompanying flash flooding along its northeast-facing slopes. The storm responsible for the event left a pattern of precipitation characteristic of orographic ...

Michael J. Murphy Jr.; Steven Businger

2011-07-01T23:59:59.000Z

84

Polymer flooding  

Science Conference Proceedings (OSTI)

This book covers all aspects of polymer flooding, an enhanced oil recovery method using water soluble polymers to increase the viscosity of flood water, for the displacement of crude oil from porous reservoir rocks. Although this method is becoming increasingly important, there is very little literature available for the engineer wishing to embark on such a project. In the past, polymer flooding was mainly the subject of research. The results of this research are spread over a vast number of single publications, making it difficult for someone who has not kept up-to-date with developments during the last 10-15 years to judge the suitability of polymer flooding to a particular field case. This book tries to fill that gap. An indispensable book for reservoir engineers, production engineers and lab. technicians within the petroleum industry.

Littmann, W.

1988-01-01T23:59:59.000Z

85

Experimental studies on remanence acquisition processes and regional geomagnetic field variability from archeointensity studies  

E-Print Network (OSTI)

Nature of the geomagnetic field . . . . . . . . . . . . . .Nature of the geomagnetic field . . . . . . . . . . . . . .Walker. Four centuries of geomagnetic secular variation from

Mitra, Ritayan

2012-01-01T23:59:59.000Z

86

Fish in electrical storms  

NLE Websites -- All DOE Office Websites (Extended Search)

Fish in electrical storms Name: Kelly A Krugeger Age: NA Location: NA Country: NA Date: NA Question: I have always been told to stay out of water during an electrical storm...

87

Numerical Simulation of the 9–10 June 1972 Black Hills Storm Using CSU RAMS  

Science Conference Proceedings (OSTI)

Strong easterly flow of low-level moist air over the eastern slopes of the Black Hills on 9–10 June 1972 generated a storm system that produced a flash flood, devastating the area. Based on observations from this storm event, and also from the ...

U. S. Nair; Mark R. Hjelmfelt; Roger A. Pielke Sr.

1997-08-01T23:59:59.000Z

88

Hurricane Gustav (2008) Waves and Storm Surge: Hindcast, Synoptic Analysis, and Validation in Southern Louisiana  

Science Conference Proceedings (OSTI)

Hurricane Gustav (2008) made landfall in southern Louisiana on 1 September 2008 with its eye never closer than 75 km to New Orleans, but its waves and storm surge threatened to flood the city. Easterly tropical-storm-strength winds impacted the ...

J. C. Dietrich; J. J. Westerink; A. B. Kennedy; J. M. Smith; R. E. Jensen; M. Zijlema; L. H. Holthuijsen; C. Dawson; R. A. Luettich Jr.; M. D. Powell; V. J. Cardone; A. T. Cox; G. W. Stone; H. Pourtaheri; M. E. Hope; S. Tanaka; L. G. Westerink; H. J. Westerink; Z. Cobell

2011-08-01T23:59:59.000Z

89

Utilities weather the storm  

SciTech Connect

Utilities must restore power to storm-damaged transmission and distribution systems, even if it means going out in ice storms or during lightning and hurricane conditions. Weather forecasting helps utilities plan for possible damage as well as alerting them to long-term trends. Storm planning includes having trained repair personnel available and adjusting the system so that less power imports are needed. Storm damage response requires teamwork and cooperation between utilities. Utilities can strengthen equipment in storm-prone or vulnerable areas, but good data are necessary to document the incidence of lighning strikes, hurricanes, etc. 2 references, 8 figures.

Lihach, N.

1984-11-01T23:59:59.000Z

90

Simulation of Geomagnetic/Inertial Integrated Navigation System  

Science Conference Proceedings (OSTI)

In order to optimize the algorithm of geomagnetic/inertial integrated navigation, we establish platform of geomagnetic/inertial integrated navigation System, and study the geomagnetic matching location approach based on ICCP algorithm and MSD algorithm, ... Keywords: Geomagnetic/Inertial Integrated Navigation, Geomagnetic Matching, ICCP algorithm, MSD algorithm, Kalman filter

Zhou Yingying; Zhang Yanshun; Guo Lei

2011-01-01T23:59:59.000Z

91

Solar wind and geomagnetism: toward a standard classification of geomagnetic activity from 1868 to 2009  

E-Print Network (OSTI)

We examined solar activity with a large series of geomagnetic data from 1868 to 2009. We have revisited the geomagnetic activity classification scheme of Legrand and Simon (1989) and improve their scheme by lowering the ...

Zerbo, J. L.

92

Geoeffectiveness and efficiency of CIR, Sheath and ICME in generation of magnetic storms  

E-Print Network (OSTI)

We investigate relative role of various types of solar wind streams in generation of magnetic storms. On the basis of the OMNI data of interplanetary measurements for the period of 1976-2000 we analyze 798 geomagnetic storms with Dst solar wind we study following relative characteristics: occurrence rate; mass, momentum, energy and magnetic fluxes; probability of generation of magnetic storm (geoeffectiveness) and efficiency of process of this generation. Obtained results show that despite magnetic clouds have lower occurrence rate and lower efficiency than CIR and Sheath they play an essential role in generation of magnetic storms due to higher geoeffectiveness of storm generation (i.e higher probability to contain large and long-term southward IMF Bz component).

Yermolaev, Yu I; Lodkina, I G; Yermolaev, M Yu

2011-01-01T23:59:59.000Z

93

Geomagnetic Field and Air Shower Simulations  

E-Print Network (OSTI)

The influence of the geomagnetic field on the development of air showers is studied. The well known International Geomagnetic Reference Field was included in the AIRES air shower simulation program as an auxiliary tool to allow calculating very accurate estimations of the geomagnetic field given the geographic coordinates, altitude above sea level and date of a given event. Some test simulations made for representative cases indicate that some quantities like the lateral distribution of muons experiment significant modifications when the geomagnetic field is taken into account.

A. Cillis; S. J. Sciutto

1997-12-30T23:59:59.000Z

94

AGU: Journal of Geophysical Research geomagnetic ionosphere currents  

E-Print Network (OSTI)

AGU: Journal of Geophysical Research Keywords geomagnetic ionosphere currents Index Terms Ionosphere: Polar cap ionosphere Ionosphere: Current systems Geomagnetism and Paleomagnetism: Rapid time variations Space Weather: Impacts on technological systems Space Weather: Geomagnetically induced currents

Michigan, University of

95

Storm Track Dynamics  

Science Conference Proceedings (OSTI)

This paper reviews the current state of observational, theoretical, and modeling knowledge of the midlatitude storm tracks of the Northern Hemisphere cool season.

Edmund K. M. Chang; Sukyoung Lee; Kyle L. Swanson

2002-08-01T23:59:59.000Z

96

Super Storm Sandy  

NLE Websites -- All DOE Office Websites (Extended Search)

Super Storm Sandy Super Storm Sandy JOHN DAVIS: Heavy rain, high winds, and surging waters pummeled the eastern seaboard in November of 2012 as hurricane Sandy chewed up the east coast leaving in its wake a swath of loss and destruction. In advance of this "storm of the century" the demand for gasoline spiked as thousands were forced to evacuate and many others stocked up on their fuel for their portable generators. After the storm passed, power outages and a crippled delivery infrastructure let to gas shortages that lasted for weeks hindering cleanup efforts and paralyzing entire cities. Atlantic City, NJ took a heavy toll in physical damage with numerous homes and boardwalk attractions damaged beyond repair. But, thanks to a program that began in 2009 the city?s recovery began more quickly than most. Atlantic City's

97

Severe Local Storms Forecasting  

Science Conference Proceedings (OSTI)

Knowledge of severe local storms has been increasing rapidly in recent years as a result of both observational studies and numerical modeling experiments. This paper reviews that knowledge as it relates to development of new applications for ...

Robert H. Johns; Charles A. Doswell III

1992-12-01T23:59:59.000Z

98

Extreme Flood Response: The June 2008 Flooding in Iowa  

Science Conference Proceedings (OSTI)

We examine the hydroclimatology, hydrometeorology and hydrology of extreme floods through analyses that center on the June 2008 flooding in Iowa. The most striking feature of the June 2008 flooding was the flood peak of the Cedar River at Cedar ...

James A. Smith; Mary Lynn Baeck; Gabriele Villarini; Daniel B. Wright; Witold Krajewski

99

Steam-flooding  

SciTech Connect

Steam-flooding has become an established recovery technique within the last 20 years. This overview discusses its evolution, methods for selecting and designing steam-floods, constraints, and possible improvements. The term steam-flooding is used here in a general sense. The discussion includes steam soak (cyclic steam injection) and steam drive.

Matthews, C.S.

1983-03-01T23:59:59.000Z

100

Directional Handoff using Geomagnetic Sensor in Indoor WLANs Sangyup Han  

E-Print Network (OSTI)

Directional Handoff using Geomagnetic Sensor in Indoor WLANs Sangyup Han , Myungchul Kim , Ben Lee a geomagnetic sensor (or a digital compass) embedded in mobile devices. The proposed scheme predicts; Directional handoff; Geomagnetic sensor; Digital compass; AP Table I. INTRODUCTION With the popularity

Lee, Ben

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

New Synchronous Orbits Using the Geomagnetic Lorentz Force Brett Streetman  

E-Print Network (OSTI)

New Synchronous Orbits Using the Geomagnetic Lorentz Force Brett Streetman and Mason A. Peck the interaction between the Earth's geomagnetic field and an electrostatic charge built up on a satellite [2 causes an interaction between the geomagnetic field and the vehicle in the form of the Lorentz force

Peck, Mason A.

102

New Synchronous Orbits Using the Geomagnetic Lorentz Force  

E-Print Network (OSTI)

New Synchronous Orbits Using the Geomagnetic Lorentz Force Brett Streetman and Mason A. Peck makes use of the interaction between the Earth's geomagnetic field and an electrostatic charge built up an interaction between the geomagnetic field and the vehicle in the form of the Lorentz force. The magnitude

Peck, Mason A.

103

The geomagnetic secularvariation timescale in observations and numerical dynamo models  

E-Print Network (OSTI)

The geomagnetic secularvariation timescale in observations and numerical dynamo models Florian March 2011; published 5 May 2011. [1] The knowledge of the spatial power spectra of the main geomagnetic for recent satellite field models. In the broader context of geomagnetic data assimilation, tSV could provide

Aubert, Julien

104

On the geomagnetic directional problem: A uniqueness result  

E-Print Network (OSTI)

On the geomagnetic directional problem: A uniqueness result Ralf Kaiser Fakultat fur Mathematik = f D. This problem is related to the problem of reconstructing the geomagnetic #12;eld outside on S. Key words: Nonlinear boundary value problem, geomagnetism, directional problem 35J65, 86A25 1

Kaiser, Ralf

105

Mitigating Geomagnetic Noise in Airborne Magnetic Surveys using GPS  

E-Print Network (OSTI)

Mitigating Geomagnetic Noise in Airborne Magnetic Surveys using GPS S. Skone Department, a limiting factor remains ­ the small-amplitude variations caused by geomagnetic pulsations arising from the correlation of TEC variations with geomagnetic pulsations. Variations in TEC during intervals of Pc 3

Calgary, University of

106

Orbital tuning of geomagnetic polarity time-scales  

E-Print Network (OSTI)

Orbital tuning of geomagnetic polarity time-scales By Dennis V. Kent Lamont-Doherty Earth of a previous occurrence (Cox 1969; McFadden & Merrill 1993). The chronology of reversals in a geomagnetic Paper #12;1996 D. V. Kent reverse normal Figure 1. Field of the time-averaged geomagnetic axial dipole

107

Storm Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storm Windows Storm Windows Storm Windows June 18, 2012 - 8:20am Addthis An energy upgrade on this daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. An energy upgrade on this daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney,

108

Storm Windows | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storm Windows Storm Windows Storm Windows June 18, 2012 - 8:20am Addthis An energy upgrade on this daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. An energy upgrade on this daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney,

109

Patterns of Cloud-to-Ground Lightning and Convective Rainfall Associated with Postwildfire Flash Floods and Debris Flows in Complex Terrain of the Western United States  

Science Conference Proceedings (OSTI)

Flash flood and debris flow reports from Storm Data and the U.S. Geological Survey (USGS) are used to investigate the relationship between hazardous hydrological responses, convective rainfall, and cloud-to-ground (CG) lightning flash parameters. ...

S. Jeffrey Underwood; Michael D. Schultz

2004-10-01T23:59:59.000Z

110

Nuclear Georeactor Generation of Earth's Geomagnetic Field  

E-Print Network (OSTI)

The purpose of this communication is to suggest that the mechanism for generating the geomagnetic field and the energy source for powering it are one and the same, a nuclear georeactor at the center of the Earth. Toward this end, I: i) Present evidence that the nuclear georeactor fission-product sub-shell is fluid; ii)Suggest that the geomagnetic field is generated within the georeactor sub-shell, rather than within Earth's iron-alloy fluid core; iii) Describe why convection appears more feasible within the georeactor sub-shell than within the iron-alloy core; iv) Disclose additional relative physical advantages for georeactor sub-shell dynamo operation; and, v) Outline briefly the research that should be conducted to advance the state of knowledge of georeactor-geomagnetic field generation. The concept of geomagnetic field production by the nuclear georeactor is presented specifically for the Earth. The concepts and principles, however, are generally applicable to planetary magnetic field production.

Herndon, J Marvin

2007-01-01T23:59:59.000Z

111

Nuclear Georeactor Generation of Earth's Geomagnetic Field  

E-Print Network (OSTI)

The purpose of this communication is to suggest that the mechanism for generating the geomagnetic field and the energy source for powering it are one and the same, a nuclear georeactor at the center of the Earth. Toward this end, I: i) Present evidence that the nuclear georeactor fission-product sub-shell is fluid; ii)Suggest that the geomagnetic field is generated within the georeactor sub-shell, rather than within Earth's iron-alloy fluid core; iii) Describe why convection appears more feasible within the georeactor sub-shell than within the iron-alloy core; iv) Disclose additional relative physical advantages for georeactor sub-shell dynamo operation; and, v) Outline briefly the research that should be conducted to advance the state of knowledge of georeactor-geomagnetic field generation. The concept of geomagnetic field production by the nuclear georeactor is presented specifically for the Earth. The concepts and principles, however, are generally applicable to planetary magnetic field production.

J. Marvin Herndon

2007-07-19T23:59:59.000Z

112

After a Storm  

NLE Websites -- All DOE Office Websites (Extended Search)

After a Storm After a Storm Nature Bulletin No. 47 January 5, 1946 Forest Preserve District of Cook County Clayton F. Smith, President Roberts Mann, Superintendent of Conservation AFTER A STORM At daybreak on Monday, December 24, a blinding blizzard raged. About eight o'clock the snow ceased. Immediately the woods and meadows became alive with hungry animals and birds. The rabbits came out of their snug hiding places to cruise the thickets, gnawing the bark of young trees and shrubs, or racing about for exercise and play. The squirrels came down from their den trees and zigzagged here and there, digging out acorns from beneath the snow. The killers of the foxes, mink and weasel -- came out hunting for mice and any luckless bird or animal they could surprise. Everywhere in the tall grass and weeds of the meadows, the field mice had made telltale holes from their runways up to the surface, for air. Flocks of song sparrows hopped about, jumping up to seize the choice weed seeds. Pheasants stalked along, eating seeds and hunting patches of burdock or nubbins left in cornfields, where they could get a real meal. The juncoes cleaned up what the pheasants wasted.

113

Strength of the geomagnetic field in the Cretaceous Normal Superchron: New data from submarine basaltic glass of the Troodos Ophiolite  

E-Print Network (OSTI)

variation record of geomagnetic full vec- tor during lateAnalysis of 11 Myr of geomagnetic intensity variation, Jour.In search of high- ?delity geomagnetic paleointensities: A

Tauxe, Lisa; Staudigel, H

2004-01-01T23:59:59.000Z

114

On the response of polar cap dynamics to its solar wind and magnetotail drivers at high levels of geomagnetic activity  

E-Print Network (OSTI)

for many levels of geomagnetic activity, J. Geophys. Res. ,1988), IMF control of geomagnetic activity, Adv. Spacecontrol of auroral zone geomagnetic activity, Geophys. Res.

Gao, Ye

2012-01-01T23:59:59.000Z

115

Decontaminating Flooded Wells  

E-Print Network (OSTI)

This publication explains how to decontaminate and disinfect a well, test the well water and check for well damage after a flood.

Boellstorff, Diana; Dozier, Monty; Provin, Tony; Dictson, Nikkoal; McFarland, Mark L.

2005-09-30T23:59:59.000Z

116

Automatic Detection of Geomagnetic Jerks by Applying a Statistical Time Series Model  

E-Print Network (OSTI)

Automatic Detection of Geomagnetic Jerks by Applying a Statistical Time Series Model to Geomagnetic@ism.ac.jp 3 Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto. A geomagnetic jerk is de#12;ned as a sudden change in the trend of the time derivative of geomagnetic secular

Higuchi, Tomoyuki

117

Trapping of strangelets in the geomagnetic field  

E-Print Network (OSTI)

Strangelets coming from the interstellar medium (ISM) are an interesting target to experiments searching for evidence of this hypothetic state of hadronic matter. We entertain the possibility of a {\\it trapped} strangelet population, quite analogous to ordinary nuclei and electron belts. For a population of strangelets to be trapped by the geomagnetic field, these incoming particles would have to fulfill certain conditions, namely having magnetic rigidities above the geomagnetic cutoff and below a certain threshold for adiabatic motion to hold. We show in this work that, for fully ionized strangelets, there is a narrow window for stable trapping. An estimate of the stationary population is presented and the dominant loss mechanisms discussed. It is shown that the population would be substantially enhanced with respect to the ISM flux (up to two orders of magnitude) due to quasi-stable trapping.

L. Paulucci; J. E. Horvath; G. A. Medina-Tanco

2007-07-22T23:59:59.000Z

118

Trapping of strangelets in the geomagnetic field  

Science Conference Proceedings (OSTI)

Strangelets arriving from the interstellar medium are an interesting target for experiments searching for evidence of this hypothetical state of hadronic matter. We entertain the possibility of a trapped strangelet population, quite analogous to ordinary nuclei and electron belts. For a population of strangelets to be trapped by the geomagnetic field, these incoming particles would have to fulfill certain conditions, namely, having magnetic rigidities above the geomagnetic cutoff and below a certain threshold for adiabatic motion to hold. We show in this work that, for fully ionized strangelets, there is a narrow window for stable trapping. An estimate of the stationary population is presented and the dominant loss mechanisms discussed. It is shown that the population would be substantially enhanced with respect to the interstellar medium flux (up to 2 orders of magnitude) due to quasistable trapping.

Paulucci, L.; Horvath, J. E.; Medina-Tanco, G. A. [Instituto de Fisica-Universidade de Sao Paulo, Rua do Matao, Travessa R, 187, 05508-090, Cidade Universitaria, Sao Paulo SP (Brazil); Instituto de Astronomia, Geofisica e Ciencias Atmosfericas-Universidade de Sao Paulo, Rua do Matao, 1226, 05508-900, Cidade Universitaria, Sao Paulo SP (Brazil); Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico A.P. 70-543, C.U. Mexico D.F. (Mexico)

2008-02-15T23:59:59.000Z

119

Trapping of strangelets in the geomagnetic field  

E-Print Network (OSTI)

Strangelets coming from the interstellar medium (ISM) are an interesting target to experiments searching for evidence of this hypothetic state of hadronic matter. We entertain the possibility of a {\\it trapped} strangelet population, quite analogous to ordinary nuclei and electron belts. For a population of strangelets to be trapped by the geomagnetic field, these incoming particles would have to fulfill certain conditions, namely having magnetic rigidities above the geomagnetic cutoff and below a certain threshold for adiabatic motion to hold. We show in this work that, for fully ionized strangelets, there is a narrow window for stable trapping. An estimate of the stationary population is presented and the dominant loss mechanisms discussed. It is shown that the population would be substantially enhanced with respect to the ISM flux (up to two orders of magnitude) due to quasi-stable trapping.

Paulucci, L; Medina-Tanco, G A

2007-01-01T23:59:59.000Z

120

Geomagnetic Earthquake Precursors Improvement Formulation on the basis of SKO (Skopje) and PAG (Intermagnet) Geomagnetic Data  

E-Print Network (OSTI)

In this paper we show that the simple analysis of the local geomagnetic field behaviour can serve as reliable imminent precursor for regional seismic activity increasing. As the first step the problem was investigated using one- component Dubna fluxgate magnetometer. The result of 2001-2004 Sofia monitoring confirmed many old papers for connection between Earth tide (Sun- Moon tides as earthquakes trigger) and jump (Geomagnetic quake) of daily averaged one minute standart deviation of the geomagnetic field. The second step (2004-present), which included analisys of three-component Danish fluxgate magnetometer data, worked in Skopje Seismological observatory, confirmed the first step result. The analysis of INTERMAGNET data stations around which was happened stronger earthquakes also confirmed our result. The distribution of time difference between the times of such earthquakes and local daily averaged tide vector movement for impending tide extreme confirms our estimate that the increasing seismicity is reali...

Mavrodiev, Strachimir Chterev

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

The study of interplanetary shocks, geomagnetic storms, and substorms with the WINDMI model.  

E-Print Network (OSTI)

??WINDMI is a low dimensional plasma physics-based model of the coupled magnetosphere-ionosphere system. The nonlinear system of ordinary differential equations describes the energy balance between… (more)

Mays, Mona Leila

2011-01-01T23:59:59.000Z

122

GPS phase scintillation and proxy index at high latitudes during a moderate geomagnetic storm  

E-Print Network (OSTI)

The amplitude and phase scintillation indices are customarily obtained by specialised GPS Ionospheric Scintillation and TEC Monitors (GISTMs) from L1 signal recorded at the rate of 50 Hz. The scintillation indices S[subscript ...

Prikryl, P.

123

Geomagnetic control of polar mesosphere summer echoes , P. Homann1  

E-Print Network (OSTI)

Geomagnetic control of polar mesosphere summer echoes J. Bremer1 , P. Homann1 , T. L. Hansen2 1 in dependence on geomagnetic K indices derived at the Auroral Observa- tory Tromsù (69.66°N, 18.94°E). During) of the radar results and the geomagnetic K indices could be detected with a maxi- mum correlation near midnight

Paris-Sud XI, Université de

124

Impact of Geomagnetically Induced Currents on Power Transformers.  

E-Print Network (OSTI)

??This thesis deals with the impact of Geomagnetically Induced Current (GIC) on power transformers in electrical power systems. A simulator to calculate the flows of… (more)

Berge, Jonathan E

2011-01-01T23:59:59.000Z

125

Assessment, analysis, and applications of geomagnetic paleointensity for 0-2 Ma  

E-Print Network (OSTI)

Brief description of geomagnetic measurement elementsAsymmetry in growth and decay of the geomagnetic dipole 4.1Figure 5.2: Power spectra of geomagnetic field and secular

Ziegler, Leah B.

2011-01-01T23:59:59.000Z

126

Large-magnitude geomagnetic disturbances in the North Sea region: Statistics, causes, and forecasting  

E-Print Network (OSTI)

Large-magnitude geomagnetic disturbances in the North Sea region: Statistics, causes require an undisturbed geomagnetic field. The Danish Meteorological Institute cur- rently offers real- ing project aiming at the development of geomagnetic forecast services, we have investigated

Gleisner, Hans

127

Geomagnetic excursions and paleointensities in the Matuyama Chron at Ocean Drilling Program Sites 983 and 984 (Iceland Basin)  

E-Print Network (OSTI)

Geomagnetic excursions and paleointensities in the Matuyama Chron at Ocean Drilling Program Sites] We report natural remanent magnetization (NRM) directions and geomagnetic paleointensity proxies here by virtual geomagnetic polar latitudes crossing the virtual geomagnetic equator) are observed

Raymo, Maureen

128

Distillation Column Flooding Predictor  

SciTech Connect

The Flooding Predictor™ is a patented advanced control technology proven in research at the Separations Research Program, University of Texas at Austin, to increase distillation column throughput by over 6%, while also increasing energy efficiency by 10%. The research was conducted under a U. S. Department of Energy Cooperative Agreement awarded to George Dzyacky of 2ndpoint, LLC. The Flooding Predictor™ works by detecting the incipient flood point and controlling the column closer to its actual hydraulic limit than historical practices have allowed. Further, the technology uses existing column instrumentation, meaning no additional refining infrastructure is required. Refiners often push distillation columns to maximize throughput, improve separation, or simply to achieve day-to-day optimization. Attempting to achieve such operating objectives is a tricky undertaking that can result in flooding. Operators and advanced control strategies alike rely on the conventional use of delta-pressure instrumentation to approximate the column’s approach to flood. But column delta-pressure is more an inference of the column’s approach to flood than it is an actual measurement of it. As a consequence, delta pressure limits are established conservatively in order to operate in a regime where the column is never expected to flood. As a result, there is much “left on the table” when operating in such a regime, i.e. the capacity difference between controlling the column to an upper delta-pressure limit and controlling it to the actual hydraulic limit. The Flooding Predictor™, an innovative pattern recognition technology, controls columns at their actual hydraulic limit, which research shows leads to a throughput increase of over 6%. Controlling closer to the hydraulic limit also permits operation in a sweet spot of increased energy-efficiency. In this region of increased column loading, the Flooding Predictor is able to exploit the benefits of higher liquid/vapor traffic that produce increased contact area and lead to substantial increases in separation efficiency – which translates to a 10% increase in energy efficiency on a BTU/bbl basis. The Flooding Predictor™ operates on the principle that between five to sixty minutes in advance of a flooding event, certain column variables experience an oscillation, a pre-flood pattern. The pattern recognition system of the Flooding Predictor™ utilizes the mathematical first derivative of certain column variables to identify the column’s pre-flood pattern(s). This pattern is a very brief, highly repeatable, simultaneous movement among the derivative values of certain column variables. While all column variables experience negligible random noise generated from the natural frequency of the process, subtle pre-flood patterns are revealed among sub-sets of the derivative values of column variables as the column approaches its hydraulic limit. The sub-set of column variables that comprise the pre-flood pattern is identified empirically through in a two-step process. First, 2ndpoint’s proprietary off-line analysis tool is used to mine historical data for pre-flood patterns. Second, the column is flood-tested to fine-tune the pattern recognition for commissioning. Then the Flooding Predictor™ is implemented as closed-loop advanced control strategy on the plant’s distributed control system (DCS), thus automating control of the column at its hydraulic limit.

George E. Dzyacky

2010-11-23T23:59:59.000Z

129

INFLUENCE OF SOLAR AND GEOMAGNETIC STIMULI ON THE MIGRATORY ORIENTATION OF  

E-Print Network (OSTI)

INFLUENCE OF SOLAR AND GEOMAGNETIC STIMULI ON THE MIGRATORY ORIENTATION OF HERRING GULL CHICKS. Demonstratingan animal'ssensitivityto a particularenvironmentalstimu- lus (e.g.geomagnetism

Moore, Frank R.

130

Geomagnetic effects on atmospheric Cerenkov images  

E-Print Network (OSTI)

Atmospheric Cerenkov telescopes are used to detect electromagnetic showers from primary gamma rays of energy ~300 GeV - ~10 TeV and to discriminate these from cascades due to hadrons using the Cerenkov images. The geomagnetic field affects the development of showers and is shown to diffuse and distort the images. When the component of the field normal to the shower axis is sufficiently large (> 0.4 G) the performance of gamma ray telescopes may be affected, although corrections should be possible.

P. M. Chadwick; K. Lyons; T. J. L. McComb; K. J. Orford; J. L. Osborne; S. M. Rayner; I. D. Roberts; S. E. Shaw; K. E. Turver

1999-04-07T23:59:59.000Z

131

Individual Permit for Storm Water  

NLE Websites -- All DOE Office Websites (Extended Search)

Individual Permit Individual Permit Individual Permit for Storm Water The Individual Permit authorizes the discharge of storm water associated with historical industrial activities at LANL from specified solid waste management units and areas of concern, collectively referred to as Sites. October 15, 2012 Sandia Canyon Wetlands Sandia Canyon Wetlands in the early morning looking north. Get Expertise Environmental Communications & Public Involvement Email In the Individual Permit, to 'minimize' means to reduce and/or eliminate discharges of pollutants in storm water to the extent achievable. What is the Individual Permit for Storm Water? The Permit - NPDES No. NM0030759 - was issued by the U.S. Environmental Protection Agency, Region 6, on September 30, 2010 to Los Alamos National

132

Predicting Storm-triggered Landslides  

Science Conference Proceedings (OSTI)

An overview of storm-triggered landslides is presented. Then a recently developed and extensively verified landslide modeling system is used to illustrate the importance of two important but presently overlooked mechanisms involved in landslides. ...

Diandong Ren; Rong Fu; Lance M. Leslie; Robert E. Dickinson

2011-02-01T23:59:59.000Z

133

Storm Tracks and Climate Change  

Science Conference Proceedings (OSTI)

Extratropical and tropical transient storm tracks are investigated from the perspective of feature tracking in the ECHAM5 coupled climate model for the current and a future climate scenario. The atmosphere-only part of the model, forced by ...

Lennart Bengtsson; Kevin I. Hodges; Erich Roeckner

2006-08-01T23:59:59.000Z

134

Storm Transfer and Response Experiment  

Science Conference Proceedings (OSTI)

An air-sea interaction research program (STREX) has been carried out in the Gulf of Alaska to investigate characteristics of the boundary layers of the atmosphere and ocean in middle-latitude storms. Observations were made by ships, aircraft, ...

R. G. Fleagle; M. Miyake; J. F. Garrett; G. A. McBean

1982-01-01T23:59:59.000Z

135

Poleward Deflection of Storm Tracks  

Science Conference Proceedings (OSTI)

An analysis of 11 years of European Centre for Medium-Range Weather Forecasts data focuses primarily on the vertically averaged high-frequency transients. The conclusions are discussed in the context of (a) the winter storm track, (b) monthly ...

Isidoro Orlanski

1998-08-01T23:59:59.000Z

136

The Convective Storm Initiation Project  

Science Conference Proceedings (OSTI)

The Convective Storm Initiation Project (CSIP) is an international project to understand precisely where, when, and how convective clouds form and develop into showers in the mainly maritime environment of southern England. A major aim of CSIP is ...

Keith A. Browning; Cyril J. Morcrette; John Nicol; Alan M. Blyth; Lindsay J. Bennett; Barbara J. Brooks; John Marsham; Stephan D. Mobbs; Douglas J. Parker; Felicity Perry; Peter A. Clark; Sue P. Ballard; Mark A. Dixon; Richard M. Forbes; Humphrey W. Lean; Zhihong Li; Nigel M. Roberts; Ulrich Corsmeier; Christian Barthlott; Bernhard Deny; Norbert Kalthoff; Samiro Khodayar; Martin Kohler; Christoph Kottmeier; Stephan Kraut; Michael Kunz; Jürgen Lenfant; Andreas Wieser; Judith L. Agnew; Dave Bamber; James McGregor; Karl M. Beswick; Malcolm D. Gray; Emily Norton; Hugo M. A. Ricketts; Andrew Russell; Geraint Vaughan; Ann R. Webb; Mark Bitter; Thomas Feuerle; Rolf Hankers; Helmut Schulz; Karen E. Bozier; Chris G. Collier; Fay Davies; Catherine Gaffard; Tim J. Hewison; Darcy N. Ladd; Elizabeth C. Slack; Joe Waight; Markus Ramatschi; David P. Wareing; Robert J. Watson

2007-12-01T23:59:59.000Z

137

Polymer flooding review  

Science Conference Proceedings (OSTI)

This paper reviews published results of the use of polymers to improve oil recovery. A discussion of the capabilities of the available types of polymers and where they have been successful is coupled with the principles of the mechanisms of polymer flooding to serve as a guide for future applications. The scope of this review is limited to case histories where full-scale polymer floods were applied, as opposed to near-well treatments.

Needham, R.B.; Doe, P.H.

1987-12-01T23:59:59.000Z

138

GIS-BASED PREDICTION OF HURRICANE FLOOD INUNDATION  

Science Conference Proceedings (OSTI)

A simulation environment is being developed for the prediction and analysis of the inundation consequences for infrastructure systems from extreme flood events. This decision support architecture includes a GIS-based environment for model input development, simulation integration tools for meteorological, hydrologic, and infrastructure system models and damage assessment tools for infrastructure systems. The GIS-based environment processes digital elevation models (30-m from the USGS), land use/cover (30-m NLCD), stream networks from the National Hydrography Dataset (NHD) and soils data from the NRCS (STATSGO) to create stream network, subbasins, and cross-section shapefiles for drainage basins selected for analysis. Rainfall predictions are made by a numerical weather model and ingested in gridded format into the simulation environment. Runoff hydrographs are estimated using Green-Ampt infiltration excess runoff prediction and a 1D diffusive wave overland flow routing approach. The hydrographs are fed into the stream network and integrated in a dynamic wave routing module using the EPA's Storm Water Management Model (SWMM) to predict flood depth. The flood depths are then transformed into inundation maps and exported for damage assessment. Hydrologic/hydraulic results are presented for Tropical Storm Allison.

JUDI, DAVID [Los Alamos National Laboratory; KALYANAPU, ALFRED [Los Alamos National Laboratory; MCPHERSON, TIMOTHY [Los Alamos National Laboratory; BERSCHEID, ALAN [Los Alamos National Laboratory

2007-01-17T23:59:59.000Z

139

Occurrence rate of extreme magnetic storms  

E-Print Network (OSTI)

Statistical analysis of occurrence rate of magnetic storms induced by different types of interplanetary drivers is made on the basis of OMNI data for period 1976-2000. Using our catalog of large scale types of solar wind streams we study storms induced by interplanetary coronal mass ejections (ICME) (separately magnetic clouds (MC) and Ejecta) and both types of compressed regions: corotating interaction regions (CIR) and Sheaths. For these types of drivers we calculate integral probabilities of storms with minimum Dst storms shows that such a magnetic storm as Carrington storm in 1859 with Dst = -1760 nT is observed on the Earth with frequency 1 event during ~500 year.

Yermolaev, Yu I; Nikolaeva, N S; Yermolaev, M Yu

2013-01-01T23:59:59.000Z

140

Field Evaluation of Low-E Storm Windows  

E-Print Network (OSTI)

EVALUATION OF LOW-E STORM WINDOWS By S. Craig Drumheller-performance of low emittance (low-e) storm windows with bothstandard clear storm windows and no storm windows was

Drumheller, S. Craig

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Deuterium in North Atlantic Storm Tops  

Science Conference Proceedings (OSTI)

During the ERICA project in 1989, ice crystals were collected from the tops bf two winter storms and one broad cirrus cloud. Deuterium concentration in the storm ice samples, together with a model of isotope fractionation, are used to determine ...

Ronald B. Smith

1992-11-01T23:59:59.000Z

142

EVIDENCE FOR COMET STORMS IN METEORITE AGES  

E-Print Network (OSTI)

solar system do so during the relatively brief (:5 4 Myr) comet storms.solar companion star (Muller, 1984). In order to understand the role played by comet storms

Perlmutter, S.

2008-01-01T23:59:59.000Z

143

Measured winter performance of storm windows  

E-Print Network (OSTI)

or Prime/Storm Replacement Window Thermal Watts Solar WattsFactor and Solar Heat Gain Coefficient Prime or Prime/Stormdesigned interior storm window. ) Solar Heat Gain One does

Klems, Joseph H.

2002-01-01T23:59:59.000Z

144

Data Mining Storm Attributes from Spatial Grids  

Science Conference Proceedings (OSTI)

A technique to identify storms and capture scalar features within the geographic and temporal extent of the identified storms is described. The identification technique relies on clustering grid points in an observation field to find self-similar ...

Valliappa Lakshmanan; Travis Smith

2009-11-01T23:59:59.000Z

145

Federal Flood Assessment Conference Recommendations and Proceedings  

E-Print Network (OSTI)

Beginning in late July and continuing through mid September 2006 the Paso del Norte region, consisting of El Paso City and County, Texas, southern New Mexico and Ciudad Juarez, Mexico, experienced a number of record high precipitation events and severe localized and widespread flooding. According to the National Weather service, the July 31 to August 4 rains alone were more like a 100-150 year recurring event over the areas hardest hit. These floods that continued over a period of more than a month caused extensive and costly damage to infrastructure, homes, businesses and other property to the extent the region was declared a Federal Disaster Area. In this bi-national, three state region many different Federal agencies and other organizations have jurisdiction or roles in forecasting climate and river flows, monitoring hydrology, water management operations, flood control design and construction, security, infrastructure, communication and disaster assistance. Congressman Silvestre Reyes convened this Federal Flood Assessment Conference to tap into the recent experiences regarding levels of coordination between federal agencies during this month's flood control operations in the Hatch/Las Cruces area of southern New Mexico and the El Paso/Juarez area of West Texas. This meeting between the federal water management agencies was foreseen as timely and important for reviewing the effects of the storm and to offer recommendations for needed changes and improvements. Valuable information was shared at the conference that will greatly assist in assessing the flood events, improving management and coordination among federal agencies and mitigating future impacts. Insight gained from the conference and the follow up summary reports contained in the proceedings will also help lay the groundwork for future planning and coordination with state and local agencies, irrigation districts and other organizations. One of Congressman Reyes’ desired outcomes from the conference is a proceedings report containing summaries of each organization’s observations, responses and recommendations regarding the area’s flood events. This conference proceedings and recommendation report contains a summary of priority agency and organization recommendations, conference agenda, list of participants, individual agency follow up reports identifying the agency responsibilities, flood event impacts from the agency perspective, agency actions, lessons learned, communication successes, full list of agency priority recommendations, identification of planned incident reports and agency contact information. Infrastructure funding, improved communication, river and levee maintenance, and the need for additional weather and gauging stations, telemetry and coordinated or centralized access to real-time monitoring data are among the highest priority recommendations. A summary of common priority recommendations follows this section. A more complete list of agency and organization priority recommendations is provided following the individual agency reports. The report also includes agency conference Power Point presentations and as additional background, maps showing gauging station locations and monitoring organizations.

Reyes, Silvestre; Brock, Peter; Michelsen, Ari

2006-09-06T23:59:59.000Z

146

Electron acceleration in solar noise storms  

E-Print Network (OSTI)

We present an up-to-date review of the physics of electron acceleration in solar noi se storms. We describe the observed characteristics of noise storm emission, emphasi zing recent advances in imaging observations. We briefly describe the general method ology of treating particle acceleration problems and apply it to the specific proble m of electron acceleration in noise storms. We dwell on the issue of the efficiency of the overall noise storm emission process and outline open problems in this area.

Subramanian, P

2007-01-01T23:59:59.000Z

147

Electron acceleration in solar noise storms  

E-Print Network (OSTI)

We present an up-to-date review of the physics of electron acceleration in solar noi se storms. We describe the observed characteristics of noise storm emission, emphasi zing recent advances in imaging observations. We briefly describe the general method ology of treating particle acceleration problems and apply it to the specific proble m of electron acceleration in noise storms. We dwell on the issue of the efficiency of the overall noise storm emission process and outline open problems in this area.

Prasad Subramanian

2007-01-23T23:59:59.000Z

148

Geomagnetic Disturbance (GMD) News and Observer, Edition 3  

Science Conference Proceedings (OSTI)

The Geomagnetic Disturbance (GMD) News and Observer is a new Electric Power Research Institute (EPRI) newsletter that provides information on geomagnetic disturbance projects in development, as well as a summary of new technology developments. This is the third issue of our newsletter, which will be published approximately quarterly, and provides progress reports and insights for the industry on this important topic.EPRI is working with the industry to assess system vulnerability and ...

2012-09-27T23:59:59.000Z

149

Geomagnetic Disturbance (GMD) News and Observer, Issue 2  

Science Conference Proceedings (OSTI)

The Geomagnetic Disturbance (GMD) News and Observer is a new Electric Power Research Institute (EPRI) newsletter that provides information on geomagnetic disturbance projects in development, as well as a summary of new technology developments. This is the second issue of our newsletter, which will be published approximately quarterly, and provides progress reports and insights for the industry on this important topic.EPRI is working with the industry to assess system vulnerability and ...

2012-09-12T23:59:59.000Z

150

Geomagnetic Disturbance (GMD) News and Observer, First Edition  

Science Conference Proceedings (OSTI)

The Geomagnetic Disturbance (GMD) News and Observer is a new Electric Power Research Institute (EPRI) newsletter that will be published quarterly and will provide information on geomagnetic disturbance projects in development, as well as a summary of new technology developments. This premier issue summarizes the current knowledge about GMDs and how transformers and the power system as a whole can be affected by GMDs. The following articles are featured in this issue: EPRI Executive Update, GMD Primer: Ho...

2012-08-10T23:59:59.000Z

151

Detection and characterization of geomagnetic pulsations using HF ionospheric heating  

SciTech Connect

This paper describes the geomagnetic pulsations observed in the high-latitude ionosphere during an experiment dealing with the ionospheric generation of ELF/VLF EM waves in June and October 1987. There was clear evidence of geomagnetic pulsations intermixed with the ELF/VLF signals in both the magnitude and phase data. A simple simulation model is introduced to facilitate the interpretation of the data, and a procedure for characterizing the pulsation is described. 5 refs.

Lee, H.S.; Ferraro, A.J.; Olson, J.V. (Pennsylvania State Univ., University Park (USA) Alaska Univ., Fairbanks (USA))

1990-12-01T23:59:59.000Z

152

Tsunami effects on the Z component of the geomagnetic field  

E-Print Network (OSTI)

The vertical component (Z) of the geomagnetic field observed by ground-based observatories of the INTERMAGNET network has been used to analyze the effects of the movement of electrically conducting sea water through the geomagnetic field due to a propagation of a tsumani. The purpose of this work is to study the geomagnetic variations induced by the tsunamis occurred at 26 December, 2004, 27 February, 2010 and 11 March, 2011. For each case study, we selected four magnetic stations belonging to the INTERMAGNET programme that were influenced or more direct affected by the tsumani. To detect these disturbances in the geomagnetic data, the discrete wavelet technique have been used in four levels of decomposition. We were able to detect the localized behavior of the geomagnetic variations induced by the movement of electrically conducting sea-water through the geomagnetic field, i. e., the identification of transients related to the tsunamis. As well, using the minutely magnetogram data, it was able to localize th...

Klausner, Virginia; Mendes, Odim; Papa, Andres R R

2011-01-01T23:59:59.000Z

153

Remote Sensing of Geomagnetic Field and Applications to Climate Prediction  

E-Print Network (OSTI)

Observations show that geomagnetic field lines follow closely the atmospheric circulation patterns and that geomagnetic field variations are precursors to climate change . The exact mechanism for the observed close relationship between global geomagnetic field and the tropospheric weather patterns is not clear. In this paper a universal theory of atmospheric eddy dynamics is presented which shows that the global geomagnetic field, atmospheric electric field and weather systems are manifestations of a semi permanent scale invariant hierarchical atmospheric eddy continuum. Quantitative equations are derived to show that the full continuum of atmospheric eddies exist as a unified whole and originate from buoyant energy supply from frictional turbulence at the planetary surface . Large eddy growth occurs from turbulence scale by the universal period doubling route to chaos . The turbulent eddies are carried upwards on the large eddy envelopes and vertical mixing occurs by the turbulent eddy fluctuations resulting in downward transport of negative space charges from higher levels and simultaneous upward transport of positive space charges from surface levels. The eddy circulations therefore generate a large-scale vertical aerosol current, which is of the correct sign and magnitude to generate the horizontal component of the geomagnetic field. Therefore, atmospheric circulation patterns leave signature on the geomagnetic field lines whose global variations can be easily monitored by satellite borne sensors and thus assist in weather and climate prediction.

A. Mary Selvam

2000-02-17T23:59:59.000Z

154

The MINIS Balloon Campaign: Duskside Relativistic Electron Precipitation  

E-Print Network (OSTI)

electrons during geomagnetic storms, J. Geophys. Res. , 109,magnetosphere during strong geomagnetic storms, J. Geophys.microburst trains in the geomagnetic storm of August 4–6,

Sample, John Glen

2013-01-01T23:59:59.000Z

155

Watershed Evaluation and Habitat Response to Recent Storms : Annual Report for 1999.  

DOE Green Energy (OSTI)

Large and powerful storm systems moved through the Pacific Northwest during the wet season of 1995--96, triggering flooding, mass erosion, and, alteration of salmon habitats in affected watersheds. This project study was initiated to assess whether watershed conditions are causing damage, triggered by storm events, to salmon habitat on public lands in the Snake River basin. The storms and flooding in 1995--96 provide a prime opportunity to examine whether habitat conditions are improving, because the effects of land management activities on streams and salmon habitat are often not fully expressed until triggered by storms and floods. To address these issues, they are studying the recent storm responses of watersheds and salmon habitat in systematically selected subbasins and watersheds within the Snake River system. The study watersheds include several in the Wenaha and Tucannon subbasins in Washington and Oregon, and the watersheds of Squaw Creek (roaded) and Weir Creek (unroaded) in the Lochsa River subbasin, Idaho. The study was designed to examine possible differences in the effects of the storms in broadly comparable watersheds with differing magnitudes or types of disturbance. Watershed response is examined by comparing storm response mechanisms, such as rates of mass failure, among watersheds with similar attributes, but different levels of land management. The response of salmon habitat conditions is being examined by comparing habitat conditions before and after the storms in a stream and among streams in watersheds with similar attributes but different levels of land management. If appropriate to the results, the study will identify priority measures for reducing the severity of storm responses in watersheds within the Snake River Basin with habitat for at-risk salmon. This annual report describes the attributes of the study watersheds and the criteria and methods used to select them. The report also describes the watershed and fish habitat attributes evaluated and the methods used to evaluate them. Watershed responses and attributes evaluated include mass failures, historic soil loss, the integration of roads with the drainage network, estimated flood recurrence intervals, and headwater channel morphology. Habitat attributes evaluated include large woody debris, pool frequency and depth, substrate conditions, and bank stability. Multiple analyses of habitat data in the Tucannon and Wenaha subbasins remain to be completed due to difficulties stemming from data characteristics that indicated that some of the pre-existing data may have be of questionable accuracy. Diagnostic attributes of the questionable data included a change in monitoring protocols during the pre- to post-flood analysis period, physically implausible temporal trends in some habitat attributes at some sites, and conflicting results for the same attribute at the same locations from different data sources. Since unreliable data can lead to spurious results, criteria were developed to screen the data for analysis, as described in this report. It is anticipated that while the data screening will prevent spurious results, it will also truncate some of the planned analysis in the Tucannon and Wenaha systems.

Rhodes, Jonathan J.; Huntington, Charles W.

2000-02-01T23:59:59.000Z

156

UPDATE: Tropical Storm Isaac | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

UPDATE: Tropical Storm Isaac UPDATE: Tropical Storm Isaac UPDATE: Tropical Storm Isaac August 27, 2012 - 6:30pm Addthis Satellite image of Tropical Storm Isaac. | Courtesy of NOAA. Satellite image of Tropical Storm Isaac. | Courtesy of NOAA. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs Tropical Storm Isaac has impacted Florida and is expected to make landfall along the Gulf Coast by early morning on August 29. As thousands of Gulf Coast residents are without power, the Energy Department's Office of Electricity Delivery and Energy Reliability will publish Emergency Situation Reports that provide details on customer outages and other energy sector impacts in the storm's path, as well as recovery and restoration activities being undertaken. The first Situation

157

Evaluation of the Storms Pool Improved Waterflood Project  

Science Conference Proceedings (OSTI)

A review of the performance of the Storms Pool Improved Waterflood Project has been completed. This project was designed to evaluate the efficiency of polymer flooding in a reservoir which had been extensively waterflooded. The project was conducted in a 100-acre pattern in the Waltersburg sandstone of the Storms Pool Field, located in White County, Illinois. This field is typical of many old oil fields in the Illinois Basin. A total of 703,000 barrels of biopolymer-thickened water was injected, which represents about 23% of the pore volume. The project was terminated early, as expenses were greatly exceeding revenues. The project resulted in little or no incremental oil production. The lack of response is attributed mainly to the conditions in which the polymer was injected. The project indicates that the injection of a polymer which acts dominantly to increase viscosity has little potential for increasing oil recovery under the conditions where a waterflood has been successful, the mobility ratio is favorable, and when initiated in the latter stages of the flood. The movable oil saturation is thought to have been lower than anticipated by the operators. Biodegradation of the polymer probably occurred, as evidenced by the lack of polymer in offset wells and in back-produced injection water. The lack of data collected and/or reported prevented a thorough analysis of the project. Field equipment and procedures appeared adequate for the mixing, filtration, and injection of polymer made up in river water. Some problems occurred during those periods of the year when the river water contained a large amount of dispersed fines. The use of a river water is questioned due to the problems of removing dispersed fines and to the increased protection required to prevent biodegradation of the biopolymer. 26 refs., 13 figs., 3 tabs.

Norton, D.K.; Dauben, D.L.

1986-03-01T23:59:59.000Z

158

Early experience with red storm.  

Science Conference Proceedings (OSTI)

Red Storm is a massively parallel processor. The Red Storm design goals are: (1) Balanced system performance - CPU, memory, interconnect, and I/O; (2) Usability - functionality of hardware and software meets needs of users for Massively Parallel Computing; (3)S calability - system hardware and software scale, single cabinet system to {approx} 30,000 processor system; (4) reliability - machines tays up long enough between interrupts to make real progress on completing application run (at least 50 hours MTBI), requires full system RAS capability; (5) Upgradability - system can be upgraded with a processor swap and additional cabinets to 100T or greater; (6) red/black switching - capability to switch major portions of the machine between classified and unclassified computing environments; (7) space, power, cooling - high density, low power system; and (8) price/performance - excellent performance per dollar, use high volume commodity parts where feasible.

Kelly, Suzanne Marie; Ballance, Robert A.

2005-04-01T23:59:59.000Z

159

Wavelet Analysis on Solar Wind Parameters and Geomagnetic Indices  

E-Print Network (OSTI)

The sun as an oscillator produces frequencies which propagate in the heliosphere, via solar wind, to the terrestrial magnetosphere. We searched for those frequencies in the parameters of the near Earth solar plasma and the geomagnetic indices for the past four solar cycles. The solar wind parameters used in this work are the interplanetary magnetic field, plasma beta, Alfven Mach number, solar wind speed, plasma temperature, plasma pressure, plasma density and the geomagnetic indices DST, AE, Ap and Kp. We found out that each parameter of the solar wind exhibit certain periodicities which di?erentiate in each cycle. Our results indicate intermittent periodicities in our data, some of them shared between the solar wind parameters and geomagnetic indices.

Katsavrias, Ch; Moussas, X

2012-01-01T23:59:59.000Z

160

Electron acceleration in solar noise storms  

E-Print Network (OSTI)

We present an up-to-date review of the physics of electron acceleration in solar noise storms. We describe the observed characteristics of noise storm emission, emphasizing recent advances in imaging observations. We briefly describe the general methodology of treating particle acceleration problems and apply it to the specific problem of electron acceleration in noise storms. We dwell on the issue of the efficiency of the overall noise storm emission process and outline open problems in this area. 1.1 Motivation: Noise storms are the most common form of meter wavelength radio emission from the solar corona. The nomenclature arises from hissing sounds produced in short-wave radio receivers, and was coined around the 1930s. Noise storms are sites of long-lasting quasi-continuous electron acceleration in the

Prasad Subramanian

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Geomagnetic Precursor Z Component Diurnal Variation Phase Anomaly Recognition based on the Pattern Distance  

Science Conference Proceedings (OSTI)

Geomagnetic precursor is one of many earthquake precursors, which have better effects on earthquake prediction, while the diurnal variation anomaly of geomagnetic precursor Z component is an important one in short-impending anomalies. Basing on the pattern ... Keywords: Geomagnetic Precursor, Diurnal Variation, Pattern Distance, Anomaly Recognition

Shaochun Wu; Tongyu Yuan; Yan Tang; Bofeng Zhang; Daming Wei

2010-06-01T23:59:59.000Z

162

Copyright 2012 IEEE. Reprinted, with permission from: Integration of Geomagnetic Disturbance Modeling into the Power  

E-Print Network (OSTI)

Copyright © 2012 IEEE. Reprinted, with permission from: Integration of Geomagnetic Disturbance America Power Symposium (NAPS), September 2012, Champaign, IL Integration of Geomagnetic Disturbance for integrated power flow modeling of the impact of geomagnetic disturbances (GMDs) on the power system voltage

163

Geomagnetic imprinting: A unifying hypothesis of long-distance natal homing in salmon and sea turtles  

E-Print Network (OSTI)

Geomagnetic imprinting: A unifying hypothesis of long-distance natal homing in salmon and sea geomagnetic polarity reversals, may affect ecological processes by disrupting natal homing, resulting the globe before reentering the planet in the northern hemisphere. Several geomagnetic elements vary pre

Lohmann, Kenneth J.

164

Physics of the Earth and Planetary Interiors 160 (2007) 5159 Making sound inferences from geomagnetic sounding  

E-Print Network (OSTI)

geomagnetic sounding Ashley E. Medin, Robert L. Parker, Steven Constable Green Institute of Geophysics, allowing us to further narrow the bounds. We draw conclusions from a global geomagnetic depth sounding data discontinuity. Published by Elsevier B.V. Keywords: Geophysical inverse theory; Geomagnetic induction

Constable, Steve

165

Modeling impacts of geomagnetic field variations on middle atmospheric ozone responses to solar proton  

E-Print Network (OSTI)

Modeling impacts of geomagnetic field variations on middle atmospheric ozone responses to solar charged particles of solar and cosmic origin. Therefore variations of the geomagnetic field occurring to the atmosphere under the consideration of different shielding properties of the geomagnetic field. The present

Wehrli, Bernhard

166

Solar magnetic fields and geomagnetic events. Alexei A. Pevtsov 1 and Richard C. Canfield  

E-Print Network (OSTI)

1 Solar magnetic fields and geomagnetic events. Alexei A. Pevtsov 1 and Richard C. Canfield AND GEOMAGNETIC EVENTS #12; 2 Abstract. Some interplanetary studies lead one to expect that the toroidal fields studies of solar magnetic fields and geomagnetic events that bear on these apparently conflicting views

Canfield, Richard

167

GEOMAGNETIC CONSEQUENCES OF THE SOLAR FLARES DURING THE LAST HALE SOLAR CYCLE (II)  

E-Print Network (OSTI)

GEOMAGNETIC CONSEQUENCES OF THE SOLAR FLARES DURING THE LAST HALE SOLAR CYCLE (II) Georgeta Maris the outer atmospheric layer to the ground. The energy source of all these geomagnetic disturbances of the Sun. This paper is part of a larger study concerning the geomagnetic effects produced by solar

168

Proceedings of ICRC 2001: 4056 c Copernicus Gesellschaft 2001 Geomagnetic cutoff Penumbra structure: Approach by  

E-Print Network (OSTI)

Proceedings of ICRC 2001: 4056 c Copernicus Gesellschaft 2001 ICRC 2001 Geomagnetic cutoff Penumbra) and on the geomagnetic activity level. We study TF using Tsyganenko'89 field model with rigidity steps R=10-5 GV ­ 10-tracing of the primary particle's trajectories in the model geomagnetic field starting from the site and inverting

Usoskin, Ilya G.

169

Spectrum of geomagnetic activity in the period range 560 days: possible lunar inuences  

E-Print Network (OSTI)

Spectrum of geomagnetic activity in the period range 5±60 days: possible lunar in¯uences J. StrÏ es (if any) is not mediated by geomag- netic activity. Key words. Geomagnetism and paleomagnetism á Time Introduction Geomagnetic activity displays various regular and irregular variations. These have been

Paris-Sud XI, Université de

170

Solar activity reconstructed over the last 7000 years: The influence of geomagnetic field changes  

E-Print Network (OSTI)

Solar activity reconstructed over the last 7000 years: The influence of geomagnetic field changes I activity depends, however, on independently evaluated data of the geomagnetic dipole strength variations to the earlier geomagnetic reconstructions. We have revised the earlier sunspot activity reconstruction since

Usoskin, Ilya G.

171

Eects of geomagnetic activity on the mesospheric electric elds* A. M. Zadorozhny and A. A. Tyutin  

E-Print Network (OSTI)

Eects of geomagnetic activity on the mesospheric electric ®elds* A. M. Zadorozhny and A. A. Tyutin of mesospheric electric ®elds carried out under dierent geomagnetic conditions at polar and high middle latitudes are analysed. The measurements show a clear dependence of the vertical electric ®elds on geomagnetic activity

Paris-Sud XI, Université de

172

Geomagnetic control of the foF2 long-term trends A. V. Mikhailov1  

E-Print Network (OSTI)

Geomagnetic control of the foF2 long-term trends A. V. Mikhailov1 , D. Marin2 1 Institute dependence of trend magnitude on geomagnetic (invariant) latitude is con®rmed. Periods of negative/positive foF2 trends corresponding to the periods of long-term increasing/ decreasing geomagnetic activity

Paris-Sud XI, Université de

173

PUBLISHED ONLINE: 19 FEBRUARY 2012 | DOI: 10.1038/NGEO1404 Geomagnetic field variability during the  

E-Print Network (OSTI)

LETTERS PUBLISHED ONLINE: 19 FEBRUARY 2012 | DOI: 10.1038/NGEO1404 Geomagnetic field variability above the oceanic crust formed during this period. The exact behaviour of the geomagnetic field during geomagnetic field at the beginning of the interval, which culmi- nates in a highly fluctuating field between

Granot, Roi

174

Temporal versus spatial geomagnetic variations along the west coast of Greenland  

E-Print Network (OSTI)

Temporal versus spatial geomagnetic variations along the west coast of Greenland J. Watermann *, O Information about the intensity and spatio-temporal characteristics of geomagnetic activity is of interest chain at 1-s sampling rate and investigate to which extent temporal geomagnetic variations in selected

Gleisner, Hans

175

Seismo-geomagnetic anomalies and M P 5.0 earthquakes observed in Taiwan during 19882001  

E-Print Network (OSTI)

Seismo-geomagnetic anomalies and M P 5.0 earthquakes observed in Taiwan during 1988­2001 J.Y. Liu a, a relationship between M P 5.0 earthquakes and diurnal variations of the total geomagnetic field recorded the near-by geomagnetic field on the ground during the earthquake preparation period. The statistical

Chen, Yuh-Ing

176

On the periodic variations of geomagnetic activity indices Ap and ap H. Schreiber  

E-Print Network (OSTI)

On the periodic variations of geomagnetic activity indices Ap and ap H. Schreiber Institut fu� r 1997 / Accepted: 2 December 1997 Abstract. Yearly averages of geomagnetic activity indi- ces Ap Solar wind ± magnetosphere interaction 1 Introduction Geomagnetic activity is generated

Paris-Sud XI, Université de

177

GEOMAGNETIC EFFECTS OF INTERPLANETARY SHOCK WAVES DURING SOLAR MINIMUM (1995-1996) AND SOLAR MAXIMUM (2000)  

E-Print Network (OSTI)

GEOMAGNETIC EFFECTS OF INTERPLANETARY SHOCK WAVES DURING SOLAR MINIMUM (1995-1996) AND SOLAR on geomagnetic activity, quantified by the maximum hourly Dst and tri-hourly ap indices, in a period of 3 days after the shock, are evaluated. Correlations between shock parameters and Dst and ap geomagnetic indices

178

Concepts of medium-range (13 days) geomagnetic forecasting Hans Gleisner *, Jurgen Watermann  

E-Print Network (OSTI)

Concepts of medium-range (1­3 days) geomagnetic forecasting Hans Gleisner *, Ju¨rgen Watermann to geomagnetic forecasting. In this report from an ongoing study within the ESA Space Weather Appli- cations of geomagnetic activity forecasts hours to days ahead. Observations of eruptive events on the Sun are nowadays

Gleisner, Hans

179

Maximum CME speed as an indicator of solar and geomagnetic activities , V.B. Yurchyshyn1  

E-Print Network (OSTI)

Maximum CME speed as an indicator of solar and geomagnetic activities A. Kilcik1 , V.B. Yurchyshyn1 maximal speeds of coronal mass ejections (CMEs), international sunspot number (ISSN) and the geomagnetic indicator of both solar and geomagnetic activity. It may have advantages over the sunspot numbers, because

180

2 Geomagnetic dipole moment collapse by convective mixing in the core 3 Lijun Liu1  

E-Print Network (OSTI)

2 Geomagnetic dipole moment collapse by convective mixing in the core 3 Lijun Liu1 and Peter Olson2 of the geomagnetic dipole. Here we 8 determine rates of dipole moment decrease as a function of 9 magnetic Reynolds of decrease of the geomagnetic 27 dipole moment, although it is unlikely that a single mixing 28 flow event

Olson, Peter L.

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Changes in cosmic ray cut-o rigidities due to secular variations of the geomagnetic eld  

E-Print Network (OSTI)

Changes in cosmic ray cut-o rigidities due to secular variations of the geomagnetic ®eld A. Bhattacharyya1 , B. Mitra2 1 Indian Institute of Geomagnetism, Colaba, Bombay 400005, India 2 Department rays arriving at a point in an arbitrary direction, when the main geomagnetic ®eld is approximated

Paris-Sud XI, Université de

182

Short-term relationship of total electron content with geomagnetic activity in equatorial regions  

E-Print Network (OSTI)

Short-term relationship of total electron content with geomagnetic activity in equatorial regions X equatorial ionosphere and geomagnetic activity is examined. Hourly averages of the total electron content for equatorial geomagnetic activity, at three local times (0700­0800, 1200­1300, and 1600­1700 LT) from March

Qiyu, Sun

183

The development of a regional geomagnetic daily variation model using neural networks  

E-Print Network (OSTI)

The development of a regional geomagnetic daily variation model using neural networks P. R. Sutclie: 28 June 1999 / Accepted: 20 July 1999 Abstract. Global and regional geomagnetic ®eld models give the components of the geomagnetic ®eld as func- tions of position and epoch; most utilise a polynomial or Fourier

Paris-Sud XI, Université de

184

GEOMAGNETIC ACTIVITY ON WEEKENDS VS WORKING DAYS STUDIED BY PLANETARY AND  

E-Print Network (OSTI)

GEOMAGNETIC ACTIVITY ON WEEKENDS VS WORKING DAYS STUDIED BY PLANETARY AND LOCAL 3-HOURLY INDICES A, Tähteläntie 62, FIN-99600 Sodankylä, Finland In the 1970s it was found that the geomagnetic field had become-year planetary geomagnetic Ap index, the 131-year antipo- dal aa index, as well as the local

Ulich, Thomas

185

On the periodic variations of secondary cosmic rays and the geomagnetic Pc4 pulsations in BMAr  

E-Print Network (OSTI)

On the periodic variations of secondary cosmic rays and the geomagnetic Pc4 pulsations in BMAr I. M are accompanied by the geomagnetic Pc4 pulsations and have similar periodicity. The phenomenon was observed over of geomagnetic ®eld were observed simultaneously with apparent peri- odicity in the count rates of charged

Paris-Sud XI, Université de

186

Possible geomagnetic activity eects on weather J. Bochncek, P. Hejda, V. Bucha, J. Py cha  

E-Print Network (OSTI)

Possible geomagnetic activity eects on weather J. Bochnõ�cek, P. Hejda, V. Bucha, J. Py� cha investigated. Composite maps of those ®elds, created for the high and low geomagnetic activity and individual of geomagnetic activity, but also between the two phases of QBO. Special attention was given to the behaviour

Paris-Sud XI, Université de

187

Physics of the Earth and Planetary Interiors 124 (2001) 95103 Chandler wobble and geomagnetic jerks  

E-Print Network (OSTI)

Physics of the Earth and Planetary Interiors 124 (2001) 95­103 Chandler wobble and geomagnetic and noticing their correlation with geomagnetic jerks [J. Geophys. Res. 103 (B11) (1998) 27069­27089], we signature of this instability is comparable with the typical evolution of the geomagnetic field during

188

The geomagnetic direction problem: The two-dimensional and the three-dimensional  

E-Print Network (OSTI)

fields generated are generally of the same order of magnitude as the geomagnetic field, and the outer geomagnetic field than the solution without the stable layer. I. Introduction A central problem in modelling by comparison with geomagnetic data. Because of the difficulties inherent in a fully three-dimensional attack

Kaiser, Ralf

189

Time variations of geomagnetic activity indices Kp and Ap: G. K. Rangarajan1  

E-Print Network (OSTI)

Time variations of geomagnetic activity indices Kp and Ap: an update G. K. Rangarajan1 , T. Iyemori2 1 Indian Institute of Geomagnetism, Colaba, Mumbai 400 005, India 2 Data Analysis Center for Geomagnetism and Space Magnetism, Faculty of Science, Kyoto University, Kyoto 606 Japan Received: 9 September

Paris-Sud XI, Université de

190

Role of centennial geomagnetic changes in local atmospheric ionization I. G. Usoskin,1  

E-Print Network (OSTI)

Role of centennial geomagnetic changes in local atmospheric ionization I. G. Usoskin,1 M. Korte,2 due to geomagnetic changes may be comparable to or even dominate over the solar signal at mid migration of the geomagnetic axis are crucial on centennial time scale, and the use of global averages may

Usoskin, Ilya G.

191

Seven thousand year duration for a geomagnetic excursion constrained Mads Faurschou Knudsen,1  

E-Print Network (OSTI)

Seven thousand year duration for a geomagnetic excursion constrained by 230 Thxs Mads Faurschou of geomagnetic excursions may provide important information about the geodynamo. It has proven difficult, however duration for a geomagnetic excursion constrained by 230 Thxs, Geophys. Res. Lett., 34, L22302, doi:10

Niocaill, Conall Mac

192

3D Shape Capture Sheet Based on Gravity and Geomagnetic Sensing Takayuki Hoshi*  

E-Print Network (OSTI)

3D Shape Capture Sheet Based on Gravity and Geomagnetic Sensing Takayuki Hoshi* and Hiroyuki. They measure the gravity and the geomagnetic vectors. The posture of the link is calculated using the measured information. Gravity and geomagnetic measurement has been used in motion capture in the preceding reports [9

Shinoda, Hiroyuki

193

TREATMENT OF CORRELATED ERRORS IN GEOMAGNETIC MODELLING -TOWARDS THE SWARM MISSION  

E-Print Network (OSTI)

TREATMENT OF CORRELATED ERRORS IN GEOMAGNETIC MODELLING - TOWARDS THE SWARM MISSION Richard Holme close to midnight LT · Total intensity data only above 50o geomagnetic latitude (reduce effect of field. CONCLUSIONS · Large along-track correlated errors in satellite data · These limit resolution of geomagnetic

194

Structure of Highly Sheared Tropical Storm Chantal during CAMEX-4  

Science Conference Proceedings (OSTI)

Tropical Storm Chantal during August 2001 was a storm that failed to intensify over the few days prior to making landfall on the Yucatan Peninsula. An observational study of Tropical Storm Chantal is presented using a diverse dataset including ...

G. M. Heymsfield; Joanne Simpson; J. Halverson; L. Tian; E. Ritchie; J. Molinari

2006-01-01T23:59:59.000Z

195

Long-Term Statistics and Extreme Waves of Sea Storms  

Science Conference Proceedings (OSTI)

A stochastic model of sea storms for describing long-term statistics of extreme wave events is presented. The formulation generalizes Boccotti’s equivalent triangular storm model by describing an actual storm history in the form of a generic ...

Francesco Fedele; Felice Arena

2010-05-01T23:59:59.000Z

196

The Mesoscale Dynamics of Freezing Rain Storms over Eastern Canada  

Science Conference Proceedings (OSTI)

A severe ice storm affected the east coast of Canada during the Canadian Atlantic Storms Project II. A hierarchy of cloud-resolving model simulations of this storm was performed with the objective of enhancing understanding of the cloud and ...

K. K. Szeto; A. Tremblay; H. Guan; D. R. Hudak; R. E. Stewart; Z. Cao

1999-05-01T23:59:59.000Z

197

Improving Gas Flooding Efficiency  

SciTech Connect

This study focuses on laboratory studies with related analytical and numerical models, as well as work with operators for field tests to enhance our understanding of and capabilities for more efficient enhanced oil recovery (EOR). Much of the work has been performed at reservoir conditions. This includes a bubble chamber and several core flood apparatus developed or modified to measure interfacial tension (IFT), critical micelle concentration (CMC), foam durability, surfactant sorption at reservoir conditions, and pressure and temperature effects on foam systems.Carbon dioxide and N{sub 2} systems have been considered, under both miscible and immiscible conditions. The injection of CO2 into brine-saturated sandstone and carbonate core results in brine saturation reduction in the range of 62 to 82% brine in the tests presented in this paper. In each test, over 90% of the reduction occurred with less than 0.5 PV of CO{sub 2} injected, with very little additional brine production after 0.5 PV of CO{sub 2} injected. Adsorption of all considered surfactant is a significant problem. Most of the effect is reversible, but the amount required for foaming is large in terms of volume and cost for all considered surfactants. Some foams increase resistance to the value beyond what is practical in the reservoir. Sandstone, limestone, and dolomite core samples were tested. Dissolution of reservoir rock and/or cement, especially carbonates, under acid conditions of CO2 injection is a potential problem in CO2 injection into geological formations. Another potential change in reservoir injectivity and productivity will be the precipitation of dissolved carbonates as the brine flows and pressure decreases. The results of this report provide methods for determining surfactant sorption and can be used to aid in the determination of surfactant requirements for reservoir use in a CO{sub 2}-foam flood for mobility control. It also provides data to be used to determine rock permeability changes during CO{sub 2} flooding due to saturation changes, dissolution, and precipitation.

Reid Grigg; Robert Svec; Zheng Zeng; Alexander Mikhalin; Yi Lin; Guoqiang Yin; Solomon Ampir; Rashid Kassim

2008-03-31T23:59:59.000Z

198

Geomagnetic cutoffs: A review for space dosimetry application  

Science Conference Proceedings (OSTI)

The earth`s magnetic field acts as a shield against charged particle radiation from interplanetary space, technically described as the geomagnetic cutoff. The cutoff rigidity problem (except for the dipole special case) has `no solution in closed form`. The dipole case yields the Stoermer equation which has been repeatedly applied to the earth in hopes of providing useful approximations of cutoff rigidities. Unfortunately, the earth`s magnetic field has significant deviations from dipole geometry, and the Stoermer cutoffs are not adequate for most applications. By application of massive digital computer power it is possible to determine realistic geomagnetic cutoffs derived from high-order simulation of the geomagnetic field. Using this technique, `world grids` of directional cutoffs for the earth`s surface and for a limited number of satellite altitudes have been derived. However, this approach is so expensive and time consuming it is impractical for most spacecraft orbits, and approximations must be used. The world grids of cutoff rigidities are extensively used as lookup tables, normalization points and interpolation aids to estimate the effective geomagnetic cutoff rigidity of a specific location is space. The authors review the various options for estimating the cutoff rigidity for earth orbiting satellites.

Shea, M.A.; Smart, D.F.

1994-12-31T23:59:59.000Z

199

Geomagnetic Disturbance (GMD) News and Observer: Issue 4  

Science Conference Proceedings (OSTI)

This is the fourth issue of GMD News and Observer. This newsletter provides progress reports and insights for the industry on the geomagnetic disturbance (GMD) area. This issue covers efforts accomplished in 2012 and summarizes plans for 2013. Previous issues can be downloaded from epri.com (1025857, 1025858, and 1025859).

2013-04-17T23:59:59.000Z

200

Visualization of Geomagnetic Environment Based on WebGL  

Science Conference Proceedings (OSTI)

Earth magnetic field environment is divided into the main magnetic field and variable magnetic field. IGRF (International Geomagnetic Reference Field) is the internationally recognized model of main magnetic field nowadays. as for the variable magnetosphere ... Keywords: earth magnetic field model, magnetic field line, WebGL, visualization

Li Xue; Qing Yangming; Liu Lei

2012-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

A Climatology of Arabian Sea Cyclonic Storms  

Science Conference Proceedings (OSTI)

On average 1–2 tropical cyclones form over the Arabian Sea each year, and few of these storms are intense enough to be classified as very severe or super cyclonic storms. As such, few studies have explicitly identified the seasonal to interannual ...

Amato T. Evan; Suzana J. Camargo

2011-01-01T23:59:59.000Z

202

The eect of the high-speed stream following the corotating interaction region on the geomagnetic activities  

E-Print Network (OSTI)

The eect of the high-speed stream following the corotating interaction region on the geomagnetic that the geomagnetic ®eld is continuously disturbed in the high-speed stream in question. The geomagnetic disturbances, the observed intensities of the geomagnetic disturbances were dierent for each recur- rent period

Paris-Sud XI, Université de

203

National Flood Insurance Act | Open Energy Information  

Open Energy Info (EERE)

Flood Insurance Act Flood Insurance Act Jump to: navigation, search Statute Name National Flood Insurance Act Year 1968 Url [[File:|160px|link=]] Description References FEMA Library[1] Wikipedia[2] The National Flood Insurance Act of 1968 is a piece of legislation passed in the United States that led to the creation of the National Flood Insurance Program (NFIP). The National Flood Insurance Act of 1968 created the Federal Insurance Administration and made flood insurance available for the first time. The Flood Disaster Protection Act of 1973 made the purchase of flood insurance mandatory for the protection of property located in Special Flood Hazard Areas. The National Flood Insurance Act is administered by the Federal Emergency Management Agency. The NFIP goals are two-fold:

204

Situation Reports: Ohio Valley and Mid-Atlantic Storm 2012 |...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Situation Reports: Ohio Valley and Mid-Atlantic Storm 2012 Situation Reports: Ohio Valley and Mid-Atlantic Storm 2012 The Office of Electricity Delivery and Energy Reliability...

205

Los Alamos National Laboratory describes storm damage to environmental...  

NLE Websites -- All DOE Office Websites (Extended Search)

Los Alamos National Laboratory describes storm damage Los Alamos National Laboratory describes storm damage to environmental monitoring stations, canyons Stations supporting Santa...

206

The 5–9 February 1996 Flooding Event over the Pacific Northwest: Sensitivity Studies and Evaluation of the MM5 Precipitation Forecasts  

Science Conference Proceedings (OSTI)

This paper describes the flooding event of 5–9 February 1996 in which a series of landfalling Pacific storms brought 30–70 cm of rain to many mountain sites over southwest Washington and northwest Oregon. This event was simulated at 36-, 12-, 4-, ...

Brian A. Colle; Clifford F. Mass

2000-03-01T23:59:59.000Z

207

Storm Peak Lab Cloud Property Validation  

NLE Websites -- All DOE Office Websites (Extended Search)

Storm Peak Lab Cloud Storm Peak Lab Cloud Property Validation Experiment (STORMVEX) Operated by the Atmospheric Radiation Measurement (ARM) Climate Research Facility for the U.S. Department of Energy, the second ARM Mobile Facility (AMF2) begins its inaugural deployment November 2010 in Steamboat Springs, Colorado, for the Storm Peak Lab Cloud Property Validation Experiment, or STORMVEX. For six months, the comprehensive suite of AMF2 instruments will obtain measurements of cloud and aerosol properties at various sites below the heavily instrumented Storm Peak Lab, located on Mount Werner at an elevation of 3220 meters. The correlative data sets that will be created from AMF2 and Storm Peak Lab will equate to between 200 and 300 in situ aircraft flight hours in liquid, mixed phase, and precipitating

208

Geomagnetically induced currents and their effect on power systems.  

E-Print Network (OSTI)

??High-impact, low-frequency (HILF) events pose a threat to power grids around the world. For example, solar storms that generate coronal mass ejections can induce a… (more)

Hutchins, Trevor

2012-01-01T23:59:59.000Z

209

Performance and Economics of Minnelusa Polymer Floods  

SciTech Connect

The secondary recovery processes of waterflooding and polymer flooding commonly used in the Minnelusa formation are compared. Flood efficiency is improved using polymer technology. Less water is injected and less water produced to recover a barrel of oil. Flood life is shortened. Results of the Simpson Ranch polymer flood show that investment in polymer technology is profitable.

Mack, J.C.; Duvall, M.L.

1984-05-01T23:59:59.000Z

210

Simulation of dynamics of radiation belt electrons during geomagnetic storms driven by high speed solar wind streams.  

E-Print Network (OSTI)

??Satellite observations have shown that fluxes of relativistic electrons in the earth's radiation belts can vary by orders of magnitude during periods of high solar… (more)

Yu, Bin

2007-01-01T23:59:59.000Z

211

Measured winter performance of storm windows  

SciTech Connect

Direct comparison measurements were made between various prime/storm window combinations and a well-weatherstripped, single-hung replacement window with a low-E selective glazing. Measurements were made using an accurate outdoor calorimetric facility with the windows facing north. The doublehung prime window was made intentionally leaky. Nevertheless, heat flows due to air infiltration were found to be small, and performance of the prime/storm combinations was approximately what would be expected from calculations that neglect air infiltration. Prime/low-E storm window combinations performed very similarly to the replacement window. Interestingly, solar heat gain was not negligible, even in north-facing orientation.

Klems, Joseph H.

2002-08-23T23:59:59.000Z

212

Oilfield flooding polymer  

DOE Patents (OSTI)

A monomer, polymers containing the monomer, and the use of the polymer in oilfield flooding is disclosed. The subject monomer is represented by the general formula: ##STR1## wherein: n is an integer from 0 to about 4; m is an integer from 0 to about 6; a is an integer equal to at least 1 except where m is equal to 0, a must equal 0 and where m is equal to 1, a must equal 0 or 1; p is an integer from 2 to about 10; b is an integer equal to at least 1 and is of sufficient magnitude that the ratio b/p is at least 0.2; and q is an integer from 0 to 2. The number of hydroxy groups in the monomer is believed to be critical, and therefore the sum of (a+b) divided by the sum (m+p) should be at least 0.2. The moieties linked to the acrylic nitrogen can be joined to provide a ringed structure.

Martin, Fred D. (Socorro, NM); Hatch, Melvin J. (Socorro, NM); Shepitka, Joel S. (Socorro, NM); Donaruma, Lorraine G. (Syosset, NY)

1986-01-01T23:59:59.000Z

213

How the EPRI Geomagnetic Disturbance (GMD) Research Fits Together  

Science Conference Proceedings (OSTI)

In collaboration with the North American Electric Reliability Corporation (NERC), the utility industry, and other stakeholders, the Electric Power Research Institute (EPRI) is building on two decades of research in the geomagnetic disturbances (GMD) area to develop the knowledge and tools to understand, predict, and mitigate the impact of GMDs on power systems. The three-year, comprehensive, multi-deliverable project that EPRI has recently launched will help the electric utility industry understand, ...

2012-09-18T23:59:59.000Z

214

Macroscopic Model of Geomagnetic-Radiation from Air Showers  

E-Print Network (OSTI)

We have developed a macroscopic description of coherent electro-magnetic radiation from air showers initiated by ultra-high energy cosmic rays in the presence of the geo-magnetic field. This description offers a simple and direct insight in the relation between the properties of the air shower and the time-structure of the radio pulse. As we show the structure of the pulse is a direct reflection of the important length scales in the shower.

Scholten, Olaf

2008-01-01T23:59:59.000Z

215

Geomagnetic Disturbance (GMD) News and Observer, Issue 5  

Science Conference Proceedings (OSTI)

Welcome to the fifth issue of our newsletter, GMD News and Observer. Published approximately quarterly, this newsletter provides progress reports and insights for the industry on the geomagnetic disturbance (GMD) area. This issue includes an update from NERC on its GMD Task Force work, a summary of a soon-to-be-published EPRI report on the impact of GICs on the North American Eastern and Western Interconnects, and noteworthy news, including the recent FERC final rulemaking on ...

2013-08-19T23:59:59.000Z

216

Macroscopic Model of Geomagnetic-Radiation from Air Showers  

E-Print Network (OSTI)

We have developed a macroscopic description of coherent electro-magnetic radiation from air showers initiated by ultra-high energy cosmic rays in the presence of the geo-magnetic field. This description offers a simple and direct insight in the relation between the properties of the air shower and the time-structure of the radio pulse. As we show the structure of the pulse is a direct reflection of the important length scales in the shower.

Olaf Scholten; Klaus Werner

2008-08-14T23:59:59.000Z

217

Geomagnetic Effects on the Performance of Atmospheric Cerenkov Telescopes  

E-Print Network (OSTI)

Atmospheric Cerenkov telescopes are used to detect electromagnetic showers from primary gamma rays of energy > 300 GeV and to discriminate these from cascades due to hadrons using the shape and orientation of the Cerenkov images. The geomagnetic field affects the development of showers and diffuses and distorts the images. When the component of the field normal to the shower axis is sufficiently large (> 0.4 G) the performance of gamma ray telescopes may be affected.

P. M. Chadwick; K. Lyons; T. J. L. McComb; K. J. Orford; J. L. Osborne; S. M. Rayner; S. E. Shaw; K. E. Turver

1999-06-08T23:59:59.000Z

218

Field Evaluation of Low-E Storm Windows  

SciTech Connect

A field evaluation comparing the performance of low emittance (low-e) storm windows with both standard clear storm windows and no storm windows was performed in a cold climate. Six homes with single-pane windows were monitored over the period of one heating season. The homes were monitored with no storm windows and with new storm windows. The storm windows installed on four of the six homes included a hard coat, pyrolitic, low-e coating while the storm windows for the other two homeshad traditional clear glass. Overall heating load reduction due to the storm windows was 13percent with the clear glass and 21percent with the low-e windows. Simple paybacks for the addition of the storm windows were 10 years for the clear glass and 4.5 years forthe low-e storm windows.

Drumheller, S. Craig; Kohler, Christian; Minen, Stefanie

2007-07-11T23:59:59.000Z

219

Storm Studies in the Arctic (STAR)  

Science Conference Proceedings (OSTI)

The Storm Studies in the Arctic (STAR) network (2007–2010) conducted a major meteorological field project from 10 October–30 November 2007 and in February 2008, focused on southern Baffin Island, Nunavut, Canada—a region that experiences intense ...

John Hanesiak; Ronald Stewart; David Barber; George Liu; Justin Gilligan; Danielle Desjardins; Robyn Dyck; Shannon Fargey; Klaus Hochheim; Rebekah Martin; Peter Taylor; Sumita Biswas; Mark Gordon; Marna Albarran Melzer; Kent Moore; Robert Field; Carling Hay; Shunli Zhang; Gordon McBean; Walter Strapp; David Hudak; John Scott; Mengistu Wolde; Ron Goodson; Edward Hudson; Gabrielle Gascon; Heather Greene; William Henson; Alex Laplante

2010-01-01T23:59:59.000Z

220

Tropical Storm Formation in a Baroclinic Environment  

Science Conference Proceedings (OSTI)

An analysis is presented of the large-scale conditions associated with the initial development of Tropical Storm Diana (September 1984) in a baroclinic environment. Ordinary extratropical wave cyclogenesis began along an old frontal boundary east ...

Lance F. Bosart; Joseph A. Bartlo

1991-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Linear and Nonlinear Propagation of Supercell Storms  

Science Conference Proceedings (OSTI)

A nonlinear formula for updraft motion in supercell storms is derived from Petterssen's formula for the motion of systems and the vertical equation of motion, and tested on form-preserving disturbances. At each level, continuous propagation of an ...

Robert Davies-Jones

2002-11-01T23:59:59.000Z

222

Alpine Stream Temperature Response to Storm Events  

Science Conference Proceedings (OSTI)

Despite continued interest in meteorological influences on the thermal variability of river systems, there are few detailed studies of stream temperature dynamics during storm events. This paper reports high-resolution (15 min) water column and ...

Lee E. Brown; David M. Hannah

2007-08-01T23:59:59.000Z

223

Dealing with Storm-Damaged Trees  

E-Print Network (OSTI)

Many homeowners need help caring for or removing damaged trees after a natural disaster. This publication explains what a certified arborist is and how to select one. It also cautions against burning debris downed by a storm.

Kirk, Melanie; Taylor, Eric; Foster, C. Darwin

2005-10-25T23:59:59.000Z

224

Dealing with Storm-Damaged Trees (Spanish)  

E-Print Network (OSTI)

Many homeowners need help caring for or removing damaged trees after a natural disaster. This publication explains what a certified arborist is and how to select one. It also cautions against burning debris downed by a storm.

Kirk, Melanie; Taylor, Eric; Foster, C. Darwin

2007-10-08T23:59:59.000Z

225

Simulation of Storm Occurrences Using Simulated Annealing  

Science Conference Proceedings (OSTI)

Modeling storm occurrences has become a vital part of hurricane prediction. In this paper, a method for simulating event occurrences using a simulated annealing algorithm is described. The method is illustrated using annual counts of hurricanes ...

Ravindra S. Lokupitiya; Leon E. Borgman; Richard Anderson-Sprecher

2005-11-01T23:59:59.000Z

226

Urban Aerosol Impacts on Downwind Convective Storms  

Science Conference Proceedings (OSTI)

The impacts of urban-enhanced aerosol concentrations on convective storm development and precipitation over and downwind of St. Louis, Missouri, are investigated. This is achieved through the use of a cloud-resolving mesoscale model, in which ...

Susan C. van den Heever; William R. Cotton

2007-06-01T23:59:59.000Z

227

Prediction of Magnetic Storms by Nonlinear Models  

E-Print Network (OSTI)

The strong correlation between magnetic storms and southward interplanetary magnetic field (IMF) is well known from linear prediction filter studies using the Dst and IMF data. However, the linear filters change significantly from one storm to another and thus are limited in their predicting ability. Previous studies have indicated nonlinearity in the magnetospheric response as the ring current decay rate varies with the Dst value during storms. We present in this letter nonlinear models for the evolution of the Dst based on the OMNI database for 1964-1990. When solar wind data are available in advance, the evolution of storms can be predicted from the Dst and IMF data. Solar wind data, however, are not available most of the time or are available typically an hour or less in advance. Therefore, we have developed nonlinear predictive models based on the Dst data alone. In the absence of solar wind data, these models cannot predict the storm onset, but can predict the storm evolution, an...

J. A. Valdivia; A. S. Sharma; K. Papadopoulos

1996-01-01T23:59:59.000Z

228

Uncertainties in field-line tracing in the magnetosphere. Part II: the complete internal geomagnetic field  

E-Print Network (OSTI)

geomagnetic field D. M. Willis1, *, J. Robin Singh 1,2 , K. S. C. Freeman1 1 Rutherford Appleton Laboratory coefficients that define the axisymmetric part of the internal geomagnetic field (i.e. g0 n 6 g0 n). Numerical geomagnetic field (i.e. gm n 6 gm n and hm n 6 hm n ). An algorithm is formulated that greatly reduces

Paris-Sud XI, Université de

229

Geomagnetic observatory GAN Jakub Velimsky K. Chandra Shakar Rao Lars W. Pedersen Ahmed Muslim  

E-Print Network (OSTI)

Geomagnetic observatory GAN Jakub Vel´imsk´y K. Chandra Shakar Rao Lars W. Pedersen Ahmed Muslim´imsk´y et al. (ETH,UK,DTU,NGRI,GMO) Geomagnetic observatory GAN 27.4.2011/KG MFF UK 1 / 16 #12;Participating, Univ. Stuttgart) John Riddick (BGS, retired) Vel´imsk´y et al. (ETH,UK,DTU,NGRI,GMO) Geomagnetic

Cerveny, Vlastislav

230

Electron loss rates from the outer radiation belt caused by the filling of the outer plasmasphere: the calm before the storm  

Science Conference Proceedings (OSTI)

Measurements from 7 spacecraft in geosynchronous orbit are analyzed to determine the decay rate of the number density of the outer electron radiation belt prior to the onset of high-speed-stream-driven geomagnetic storms. Superposed-data analysis is used wan(?) a collection of 124 storms. When there is a calm before the storm, the electron number density decays exponentially before the storm with a 3.4-day e-folding time: beginning about 4 days before storm onset, the density decreases from {approx}4x10{sup -4} cm{sup -3} to {approx}1X 10{sup -4} cm{sup -3}. When there is not a calm before the storm, the number-density decay is very smalL The decay in the number density of radiation-belt electrons is believed to be caused by pitch-angle scattering of electrons into the atmospheric loss cone as the outer plasmasphere fills during the calms. While the radiation-belt electron density decreases, the temperature of the electron radiation belt holds approximately constant, indicating that the electron precipitation occurs equally at all energies. Along with the number density decay, the pressure of the outer electron radiation belt decays and the specific entropy increases. From the measured decay rates, the electron flux to the atmosphere is calculated and that flux is 3 orders of magnitude less than thermal fluxes in the magnetosphere, indicating that the radiation-belt pitch-angle scattering is 3 orders weaker than strong diffusion. Energy fluxes into the atmosphere are calculated and found to be insufficient to produce visible airglow.

Borovsky, Joseph E [Los Alamos National Laboratory; Denton, Michael H [LANCASTER UNIV

2009-01-01T23:59:59.000Z

231

Autonomous Exploration and Mapping of Flooded Sinkholes  

Science Conference Proceedings (OSTI)

In this paper, we describe the control, navigation, and mapping methods that were developed for a hovering autonomous underwater vehicle that explored flooded cenotes in Mexico. The cenotes of Sistema ZacatĂłn in Tamaulipas, Mexico are flooded ...

Nathaniel Fairfield; George Kantor; Dominic Jonak; David Wettergreen

2010-05-01T23:59:59.000Z

232

Catastrophic Rainfall and Flooding in Texas  

Science Conference Proceedings (OSTI)

Heavy rainfall and flooding occurred on the Gulf Coastal Plain physiographic province of southeastern Texas in October 1994 and caused 22 deaths and more than $1 billion in damages. Record flooding occurred in the 1085 km2 Spring Creek catchment, ...

James A. Smith; Mary Lynn Baeck; Julia E. Morrison; Paula Sturdevant-Rees

2000-02-01T23:59:59.000Z

233

The clustering of polarity reversals of the geomagnetic field  

E-Print Network (OSTI)

Often in nature the temporal distribution of inhomogeneous stochastic point processes can be modeled as a realization of renewal Poisson processes with a variable rate. Here we investigate one of the classical examples, namely the temporal distribution of polarity reversals of the geomagnetic field. In spite of the commonly used underlying hypothesis, we show that this process strongly departs from a Poisson statistics, the origin of this failure stemming from the presence of temporal clustering. We find that a Levy statistics is able to reproduce paleomagnetic data, thus suggesting the presence of long-range correlations in the underlying dynamo process.

V. Carbone; L. Sorriso-Valvo; A. Vecchio; F. Lepreti; P. Veltri; P. Harabaglia; I. Guerra

2006-03-10T23:59:59.000Z

234

Influence of geomagnetic perturbation on resonant gravitational wave detector  

E-Print Network (OSTI)

The level of background signals in modern cryogenic resonant mass gravitational wave antenna is discussed caused by (a) the geomagnetic field pulsations and (b) an atmosferic of very low frequency band, generated by a lightning flash. The analysis of our results show that the signals of this origin will generally exceed the signals from the gravitational wave sources. To suppress these artifacts in such gravitational antenna, it is necessary to use the magnetometer included as anti-coincidence protection and a system of magnetic screens.

Peter Vorob'ev; Valeri Ianovski; Igor Okunev

1996-02-12T23:59:59.000Z

235

Electro Acceleration in a Geomagnetic Field Line Resonance  

Science Conference Proceedings (OSTI)

A hybrid MHD kinetic electron model in dipolar coordinates is used to sim- ulate the upward current region of a geomagnetic Field Line Resonance (FLR) system for a realistic ambient electron temperatures of a keV. It is found that mirror force e ects result in potential drops su#14;cient to accelerate electrons to energies in excess of a keV in support of eld aligned currents on the or- der of 0.5 #22;µA/m2. The wave energy dissipated in this acceleration would com- pletely damp an undriven FLR with an equatorial width of 0.5 RE within two resonance cycles.

Peter Damiano and J.R. Johnson

2012-08-17T23:59:59.000Z

236

StormVEx_2009ARM_poster  

NLE Websites -- All DOE Office Websites (Extended Search)

StormVEx Question: StormVEx Question: Can these distinctions be made in orographic clouds with snow akes, water droplets, and active dynamics? Aerial view of SPL Summer/Fall at SPL Winter/Spring at SPL Science team at AMF2 location during Winter 2009 site visit SPL The core goal of ACRF is improving the representation of clouds in global models. The ability to convert the remote sensing measurements to cloud properties has been ham- pered by a critical shortage of correlative data for valida- tion and development of new algorithms. Such data sets are normally created by episodic and expensive aircraft measurements. StormVEx will create a correlative data set equivalent to ~200-300 aircraft flights in liquid and mixed phase clouds. This will be achieved by placing the AMF2 in

237

'Perfect Storm' Sank Solyndra | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

'Perfect Storm' Sank Solyndra 'Perfect Storm' Sank Solyndra 'Perfect Storm' Sank Solyndra September 14, 2011 - 6:14am Addthis Daniel B. Poneman Daniel B. Poneman Deputy Secretary of Energy Editorial Note: This article also appears in USA Today. The International Energy Agency projects that solar power will grow steadily, producing nearly a quarter of the world's electricity within four decades. Conservatively, that means more than $3 trillion worth of solar panels will need to be manufactured - a vast economic and employment opportunity to be seized by companies that succeed in this sector. Our competitors know this, and are playing to win. Winning will require substantial investments. Last year, for example, the China Development Bank offered more than $30 billion in financing to Chinese solar manufacturers,

238

FyreStorm Inc | Open Energy Information  

Open Energy Info (EERE)

FyreStorm Inc FyreStorm Inc Jump to: navigation, search Name FyreStorm Inc Place Sunnyvale, California Zip 94086 Product A semiconductor company developing power management technologies to enable a new generation of mobile electronic products. Coordinates 32.780338°, -96.547405° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.780338,"lon":-96.547405,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

239

Field Evaluation of Low-E Storm Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

Field Evaluation of Low-E Storm Windows Field Evaluation of Low-E Storm Windows Title Field Evaluation of Low-E Storm Windows Publication Type Conference Paper LBNL Report Number LBNL-1940E Year of Publication 2007 Authors S. Craig Drumheller, Christian Kohler, and Stefanie Minen Conference Name Thermal Performance of the Exterior Envelopes of Whole Buildings X International Conference Volume 277 Date Published 12/2007 Conference Location Clearwater Beach, FL Abstract A field evaluation comparing the performance of low emittance (low-e) storm windows with both standard clear storm windows and no storm windows was performed in a cold climate. Six homes with single pane windows were monitored over the period of one heating season. The homes were monitored with no storm windows and with new storm windows. The storm windows installed on four of the six homes included a hard coat, pyrolitic, low-e coating while the storm windows for the other two homes had traditional clear glass. Overall heating load reduction due to the storm windows was 13% with the clear glass and 21% with the low-e windows. Simple paybacks for the addition of the storm windows were 10 years for the clear glass and 4.5 years for the low-e storm windows.

240

Journal of Atmospheric and Solar-Terrestrial Physics 70 (2008) 10741087 Centennial geomagnetic activity studied by a new,  

E-Print Network (OSTI)

Journal of Atmospheric and Solar-Terrestrial Physics 70 (2008) 1074­1087 Centennial geomagnetic Available online 1 February 2008 Abstract We reanalyse geomagnetic activity during the last century using enough to make a significant effect for long-term estimates. The Ah index verifies that geomagnetic

Mursula, Kalevi

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS, VOL. ???, XXXX, DOI:10.1029/, Effect of a metallic core on transient geomagnetic induction  

E-Print Network (OSTI)

on transient geomagnetic induction J. Vel´imsk´y,1 , C. C. Finlay2 1 Department of Geophysics, Faculty, 2:01pm D R A F T #12;X - 2 VEL´IMSK ´Y AND FINLAY: EFFECT OF CORE ON GEOMAGNETIC INDUCTION Abstract be correctly taken into account when mod- elling the geomagnetic field using modern observatory and satellite

VelĂ­msky, Jakub

242

The Eastern red-spotted newt Notophthalmus viridescens uses the geomagnetic field for two forms of spatial orientation: (1)  

E-Print Network (OSTI)

The Eastern red-spotted newt Notophthalmus viridescens uses the geomagnetic field for two forms also use the geomagnetic field to derive map information (Fischer et al., 2001; Phillips et al., 2002 from the geomagnetic field (Phillips and Borland, 1994). Under long- wavelength light, therefore

Phillips, John B.

243

A review of geomagnetic cutoff rigidities for earth-orbiting spacecraft D.F. Smart *, M.A. Shea  

E-Print Network (OSTI)

A review of geomagnetic cutoff rigidities for earth-orbiting spacecraft D.F. Smart *, M.A. Shea Air Geomagnetic cutoff rigidities are a quantitative measure of the shielding provided by the earthĂ?s magnetic field. More precisely, geomagnetic cutoff rigidities predict the energetic charged particle transmission

Shepherd, Simon

244

32ND INTERNATIONAL COSMIC RAY CONFERENCE, BEIJING 2011 Influence of geomagnetic effects on large scale anisotropy searches  

E-Print Network (OSTI)

32ND INTERNATIONAL COSMIC RAY CONFERENCE, BEIJING 2011 Influence of geomagnetic effects on large://www.auger.org/archive/authors 2011 05.html) auger spokespersons@fnal.gov Abstract: We discuss the influence of the geomagnetic field Detector array of the Pierre Auger Observatory. The geomagnetic field induces a modulation of the energy

Hörandel, Jörg R.

245

Effects of solar wind magnetosphere coupling recorded at different geomagnetic latitudes: Separation of directly-driven and storage/  

E-Print Network (OSTI)

Effects of solar wind magnetosphere coupling recorded at different geomagnetic latitudes November 2008. [1] The effect on geomagnetic activity of solar wind speed, compared with that of the strength of the interplanetary magnetic field, differs with geomagnetic latitude. In this study we

Lockwood, Mike

246

Understanding the biophysical mechanism(s) underlying geomagnetic field sensitivity in animals is one of the most  

E-Print Network (OSTI)

Understanding the biophysical mechanism(s) underlying geomagnetic field sensitivity in animals is one of the most exciting challenges in sensory biology. The use of geomagnetic cues for spatial and photosensitive pineal gland may be sensitive to the geomagnetic field (Semm et al., 1984; Demaine and Semm, 1985

Phillips, John B.

247

Uncertainties in field-line tracing in the magnetosphere. Part I: the axisymmetric part of the internal geomagnetic field  

E-Print Network (OSTI)

of the internal geomagnetic field D. M. Willis1;3, J. Robin Singh1;2 , Jacqueline Comer1;2 1 Rutherford Appleton in the specification of the geomagnetic field of internal origin. Because of the complexity in computing the axisymmetric part of the internal geomagnetic field. An exact analytic equation exists for the magnetic field

Paris-Sud XI, Université de

248

High-resolution data of the Iceland Basin geomagnetic excursion from ODP sites 1063 and 983: Existence of intense flux  

E-Print Network (OSTI)

High-resolution data of the Iceland Basin geomagnetic excursion from ODP sites 1063 and 983-resolution records of the 185 kyr Iceland Basin (IB) geomagnetic excursion from Ocean Drilling Project (ODP) Site reserved. Keywords: Geomagnetic excursions; Iceland Basin excursion; Preferred VGP longitudes; Patches

Niocaill, Conall Mac

249

An intense SFE and SSC event in geomagnetic H, Y and Z elds at the Indian chain of observatories  

E-Print Network (OSTI)

An intense SFE and SSC event in geomagnetic H, Y and Z ®elds at the Indian chain of observatories R, Gujarat University, Ahmedabad 380 009, India 2 Indian Institute of Geomagnetism, Mumbai 400 005, India 3 are reported at the chain of ten geomagnetic observatories in India during an intense solar crochet

Paris-Sud XI, Université de

250

Physics of the Earth and Planetary Interiors 131 (2002) 225235 The implications of non-suppressed geomagnetic secular variation  

E-Print Network (OSTI)

-suppressed geomagnetic secular variation during the Permo-Carboniferous Reversed Superchron Pauline P. Kruivera, Cor G-equator. These red beds are reliable recorders of the geomagnetic field, because the NRM is carried by detrital deviation; Spectral analysis 1. Introduction Prominent features of the geomagnetic field are governed

Utrecht, Universiteit

251

PUBLISHED ONLINE: 1 JULY 2012 | DOI: 10.1038/NGEO1506 Eccentricity of the geomagnetic dipole caused by  

E-Print Network (OSTI)

LETTERS PUBLISHED ONLINE: 1 JULY 2012 | DOI: 10.1038/NGEO1506 Eccentricity of the geomagnetic melting on the other4,5 . Today, the geomagnetic field that orig- inates in the core is also slightly km. The geomagnetic dipole has moved into Earth's Eastern Hemisphere over the past two centuries6

Olson, Peter L.

252

The Earth's passage of the April 11, 1997 coronal ejecta: geomagnetic eld uctuations at high and low latitude  

E-Print Network (OSTI)

The Earth's passage of the April 11, 1997 coronal ejecta: geomagnetic ®eld ¯uctuations at high. An analysis of the low frequency geomagnetic ®eld ¯uctuations at an Antarctic (Terra Nova Bay) and a low geomagnetic noon, coherent ¯uctuations, at the same frequency (3.6 mHz) and with polarization characteris

Paris-Sud XI, Université de

253

Ar/Ar ages from transitionally magnetized lavas on La Palma, Canary Islands, and the geomagnetic instability timescale  

E-Print Network (OSTI)

Ar/Ar ages from transitionally magnetized lavas on La Palma, Canary Islands, and the geomagnetic geomagnetic events. The Matuyama-Brunhes (M-B) reversal is recorded in five transitionally magnetized lava of weakly magnetized flows associated with virtual geomagnetic pole (VGP) positions in the southwest Indian

Singer, Bradley S.

254

Geomagnetic field behavior at high latitudes from a paleomagnetic record from Eltanin core 2721 in the Ross Sea sector, Antarctica  

E-Print Network (OSTI)

Geomagnetic field behavior at high latitudes from a paleomagnetic record from Eltanin core 27-term geomagnetic features, like the Cobb Mountain excursion, are resolved. The record from Eltanin 27­21 provides new insights into the behavior of the geomagnetic field at high latitudes, about which very little

Acton, Gary

255

Solar Storm Closely Watched Worldwide | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar Storm Closely Watched Worldwide Solar Storm Closely Watched Worldwide Solar Storm Closely Watched Worldwide March 9, 2012 - 10:14am Addthis While this week's solar storm captures the interest of scientists, researchers and people around the world, the Energy Department works with others to monitor the storm's potential impact on the nation's electrical grid. | Image credit: NOAA. While this week's solar storm captures the interest of scientists, researchers and people around the world, the Energy Department works with others to monitor the storm's potential impact on the nation's electrical grid. | Image credit: NOAA. Kenneth Friedman Senior Policy Advisor in the Office of Electricity Delivery and Energy Reliability The solar storm that is capturing the interest of scientists, researchers

256

Architect Of Severe Storm Forecasting: Colonel Robert C. Miller  

Science Conference Proceedings (OSTI)

The career of severe storm forecaster and teacher Colonel Robert Miller (1920–98) is historicallyreviewed and evaluated. His pathway to the position of recognized authority in severe storm forecasting is examined in light of his early education ...

John M. Lewis; Robert A. Maddox; Charlie A. Crisp

2006-04-01T23:59:59.000Z

257

The Influence of Helicity on Numerically Simulated Convective Storms  

Science Conference Proceedings (OSTI)

A three-dimensional numerical cloud model is used to investigate the influence of storm-relative environmental helicity (SREH) on convective storm structure and evolution, with a particular emphasis on the identification of ambient shear profiles ...

Kelvin K. Droegemeier; Steven M. Lazarus; Robert Davies-Jones

1993-07-01T23:59:59.000Z

258

Precipitation Types in the Transition Region of Winter Storms  

Science Conference Proceedings (OSTI)

Winter storms often produce snow, freezing rain, and ice pellets. The characteristics and formation of these forms of precipitation as well as their location within storms are reviewed. Phenomena such as accretion and fog can be related to this ...

Ronald E. Stewart

1992-03-01T23:59:59.000Z

259

Understanding Utah Winter Storms: The Intermountain Precipitation Experiment  

Science Conference Proceedings (OSTI)

Winter storms and their prediction are of increasing importance throughout the region of the United States with the fastest growing population, the Intermountain West. Such storms can produce heavy orographic snowfall, lake-effect snowbands, and ...

David M. Schultz; W. James Steenburgh; R. Jeffrey Trapp; John Horel; David E. Kingsmill; Lawrence B. Dunn; W. David Rust; Linda Cheng; Aaron Bansemer; Justin Cox; John Daugherty; David P. Jorgensen; José Meitín; Les Showell; Bradley F. Smull; Keli Tarp; Marilu Trainor

2002-02-01T23:59:59.000Z

260

Operations of the National Severe Storms Forecast Center  

Science Conference Proceedings (OSTI)

The National Severe Storms Forecast Center in Kansas City, Missouri, is composed of several operational forecasting units, all national in scope. It includes the Severe Local Storms Unit (SELS), the National Aviation Weather Advisory Unit (NAWAU),...

Frederick P. Ostby

1992-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Aircraft Icing Measurements in East Coast Winter Storms  

Science Conference Proceedings (OSTI)

Analysis of the aircraft icing environments of East Coast winter storms have been made from 3 1 flights duringthe second Canadian Atlantic Storms Program. Microphysical parameters have been summarized and are compared to common icing intensity ...

Stewart G. Cober; George A. Isaac; J. W. Strapp

1995-01-01T23:59:59.000Z

262

Changes in Ice Storm Impacts over Time: 1886–2000  

Science Conference Proceedings (OSTI)

Ice storms have a variety of negative effects on society. Through an analysis of newspaper accounts of nine exceptional ice storms, the most widespread and longest lasting impact is the loss of electrical power. Power outages also cause secondary ...

David A. Call

2010-01-01T23:59:59.000Z

263

Environmental Influences on the Strength of Tropical Storm Debby (2006)  

Science Conference Proceedings (OSTI)

This study uses mesoscale ensemble forecasts to compare the magnitude of nonaerosol effects of the Saharan air layer (SAL) with other environmental influences on the intensity of Tropical Storm Debby. Debby was a weak Cape Verde storm that ...

Jason A. Sippel; Scott A. Braun; Chung-Lin Shie

2011-11-01T23:59:59.000Z

264

The Morphology of Several Tornadic Storms on 20 May 1977  

Science Conference Proceedings (OSTI)

Sixteen tornadic storms occurred in the afternoon and evening hours of 20 May 1977 and the early morning hours of 21 May 1977. Three storms, two of them tornadic, have been selected for detailed study. One of the tornadic storms was observed for ...

P.S. Ray; B.C. Johnson; K.W. Johnson; J.S. Bradberry; J.J. Stephens; K.K Wagner; R.B. Wilhelmson; J.B. Klemp

1981-08-01T23:59:59.000Z

265

Statistical Prediction of the Storm Surge Associated with Cool-Weather Storms at the Battery, New York  

Science Conference Proceedings (OSTI)

The winter and early spring weather in the New York City metropolitan region is highly influenced by extratropical storm systems, and the storm surge associated with these systems is one of the main factors contributing to inundation of coastal ...

H. Salmun; A. Molod; K. Wisniewska; F. S. Buonaiuto

2011-02-01T23:59:59.000Z

266

Hail Growth in an Oklahoma Multicell Storm  

Science Conference Proceedings (OSTI)

Hail growth in an Oklahoma multicellular storm is studied using a numerical model of hailstone growth and decay and dual-Doppler derived wind fields. Hail was collected at the time of the Doppler radar data collection which provided input for ...

Conrad L. Ziegler; Peter S. Ray; Nancy C. Knight

1983-07-01T23:59:59.000Z

267

Ice Storm Database and Ice Severity Maps  

Science Conference Proceedings (OSTI)

Historical icing information has several valuable uses in overhead transmission line ice loading design and research. Previously, this type of information was neither readily available nor easily acquired. This report describes the creation of an electronic ice storm database and regional ice severity maps for the United States.

1996-12-17T23:59:59.000Z

268

MEASURED WINTER PERFORMANCE OF STORM WINDOWS  

E-Print Network (OSTI)

of the prime/storm combinations was approximately what would be expected from calculations that neglect air glazings, gas-filled units, improved frames and insulating spacers. However, most of these improved residential building stock already existed in 1980, before development of most of the new technologies

269

Rapid Intensification of a Sheared Tropical Storm  

Science Conference Proceedings (OSTI)

A weak tropical storm (Gabrielle in 2001) experienced a 22-hPa pressure fall in less than 3 h in the presence of 13 m s?1 ambient vertical wind shear. A convective cell developed downshear left of the center and moved cyclonically and inward to ...

John Molinari; David Vollaro

2010-10-01T23:59:59.000Z

270

Winter Icing and Storms Project (WISP)  

Science Conference Proceedings (OSTI)

Field studies in support of the Winter Icing and Storms Project (WISP) were conducted in the Colorado Front Range area from 1 February to 31 March 1990(WISP90) and from 15 January to 5 April 1991 (WISP91). The main goals of the project are to ...

Roy Rasmussen; Marcia Politovich; Wayne Sand; Greg Stossmeister; Ben Bernstein; Kim Elmore; John Marwitz; John McGinley; John Smart; Ed Westwater; B. Boba Stankov; Roger Pielke; Steve Rutledge; Doug Wesley; Nick Powell; Don Burrows

1992-07-01T23:59:59.000Z

271

Geomagnetic Field Effects on the Imaging Air Shower Cherenkov Technique  

E-Print Network (OSTI)

Imaging Air Cherenkov Telescopes (IACTs) detect the Cherenkov light flashes of Extended Air Showers (EAS) triggered by very high energy (VHE) gamma-rays impinging on the Earth's atmosphere. Due to the overwhelming background from hadron induced EAS, the discrimination of the rare gamma-like events is rather difficult, in particular at energies below 100 GeV. The influence of the Geomagnetic Field (GF) on the EAS development can further complicate this discrimination and, in addition, also systematically affect the gamma efficiency and energy resolution of an IACT. Here we present the results from dedicated Monte Carlo (MC) simulations for the MAGIC telescope site. Additionally we show that measurements of sub-TeV gamma-rays from the Crab nebula are affected even for a low GF strength of less than 33 micro Tesla.

S. C. Commichau; A. Biland; D. Kranich; R. de los Reyes; A. Moralejo; D. Sobczynska

2007-09-10T23:59:59.000Z

272

Disturbances in the U.S. electric grid associated with geomagnetic activity  

E-Print Network (OSTI)

Large solar explosions are responsible for space weather that can impact technological infrastructure on and around Earth. Here, we apply a retrospective cohort exposure analysis to quantify the impacts of geomagnetic activity on the U.S. electric power grid for the period from 1992 through 2010. We find, with more than 3-sigma significance, that approximately 4% of the disturbances in the U.S. power grid reported to the U.S. Department of Energy are attributable to strong geomagnetic activity and its associated geomagnetically induced currents.

Schrijver, Carolus J

2013-01-01T23:59:59.000Z

273

Source region of the 2003 November 18 CME that led to the strongest magnetic storm of cycle 23  

E-Print Network (OSTI)

The super-storm of November 20, 2003 was associated with a high speed coronal mass ejection which originated in the NOAA AR 10501 on November 18. This coronal mass ejection had severe terrestrial consequences leading to a geomagnetic storm with DST index of -472 nT, the strongest of the current solar cycle. In this paper, we attempt to understand the factors that led to the coronal mass ejection on November 18. We have also studied the evolution of the photospheric magnetic field of NOAA AR 10501, the source region of this coronal mass ejection. For this purpose, the MDI line-of-sight magnetograms and vector magnetograms from Solar Flare Telescope, Mitaka, obtained during November, 17-19, 2003 were analysed. In particular, quantitative estimates of the temporal variation in magnetic flux, energy and magnetic field gradient were estimated for the source active region. The evolution of these quantities was studied for the 3-day period with an objective to understand the pre-flare configuration leading up to the...

Srivastava, N; Louis, R; Wiegelmann, T

2008-01-01T23:59:59.000Z

274

Source region of the 2003 November 18 CME that led to the strongest magnetic storm of cycle 23  

E-Print Network (OSTI)

The super-storm of November 20, 2003 was associated with a high speed coronal mass ejection which originated in the NOAA AR 10501 on November 18. This coronal mass ejection had severe terrestrial consequences leading to a geomagnetic storm with DST index of -472 nT, the strongest of the current solar cycle. In this paper, we attempt to understand the factors that led to the coronal mass ejection on November 18. We have also studied the evolution of the photospheric magnetic field of NOAA AR 10501, the source region of this coronal mass ejection. For this purpose, the MDI line-of-sight magnetograms and vector magnetograms from Solar Flare Telescope, Mitaka, obtained during November, 17-19, 2003 were analysed. In particular, quantitative estimates of the temporal variation in magnetic flux, energy and magnetic field gradient were estimated for the source active region. The evolution of these quantities was studied for the 3-day period with an objective to understand the pre-flare configuration leading up to the moderate flare which was associated with the geo-effective coronal mass ejection. We also examined the chromospheric images recorded in H-alpha from Udaipur Solar Observatory to compare the flare location with regions of different magnetic field and energy. Our observations provide evidence that the flare associated with the CME occurred at a location marked by high magnetic field gradient which led to release of free energy stored in the active region.

N. Srivastava; S. Mathew; R. Louis; T. Wiegelmann

2008-12-30T23:59:59.000Z

275

Numerical assessment of flood hazard risk to people and vehicles in flash floods  

Science Conference Proceedings (OSTI)

Flash flooding often leads to extremely dangerous and sometimes catastrophic conditions in rivers due to characteristics such as: short timescales, the limited opportunity for issuing warnings, and the frequent high average mortality. Many past extreme ... Keywords: Flash floods, Flood hazard risk, Numerical assessment, People safety, Vehicle safety

Junqiang Xia; Roger A. Falconer; Binliang Lin; Guangming Tan

2011-08-01T23:59:59.000Z

276

Statistical relationships between the surface air temperature anomalies and the solar and geomagnetic activity indices  

E-Print Network (OSTI)

Statistical analysis of the data series from 1856 to 2000 for the annual global and hemispheric surface air temperature anomalies is completed. Statistically significant correlations are found between global and hemispheric temperature anomalies and solar and geomagnetic indices. The temperature anomalies in the Northern and Southern hemispheres show similar statistical relations with the solar and geomagnetic indices. The cross-correlation analysis shows no statistically significant global temperature lag behind the sunspots as well as behind aa-indices. The correlation between the temperature anomalies and the geomagnetic indices is about two times higher than the correlation between the temperature anomalies and the solar indices. These results support the suggestion that the geomagnetic forcing predominates over the solar activity forcing on the global and hemispheric surface air temperatures.

Valev, Dimitar

2010-01-01T23:59:59.000Z

277

Regional Modelling of the Southern African Geomagnetic Field using Harmonic Splines  

E-Print Network (OSTI)

Over the southern African region the geomagnetic field is weak and changes rapidly. For this area series of geomagnetic field measurements exist since the 1950s. We take advantage of the existing repeat station surveys and observatory annual means, and clean these data sets by eliminating jumps and minimising external field contributions in the original time series. This unique data set allows us to obtain a detailed view of the geomagnetic field behaviour in space and time by computing a regional model. For this, we use a system of representation similar to harmonic splines. Initially, the technique is systematically tested on synthetic data. After systematically testing the method on synthetic data, we derive a model for 1961 to 2001 that gives a detailed view of the fast changes of the geomagnetic field in this region.

Geese, Anne; Lesur, Vincent; Mandea, Mioara

2010-01-01T23:59:59.000Z

278

Parametric control in the problem of spacecraft stabilization in the geomagnetic field  

Science Conference Proceedings (OSTI)

The spacecraft interacting with the geomagnetic field in electrodynamic mode is subject to parametric perturbations; parameters of the spacecraft are controlled quasi-periodic functions. Under some conditions, there exist control algorithms for spacecraft ... Keywords: 45.40.-f

K. A. Antipov; A. A. Tikhonov

2007-08-01T23:59:59.000Z

279

Origin of the high energy proton component below the geomagnetic cutoff in near earth orbit  

E-Print Network (OSTI)

The high flux proton component observed by AMS below the geomagnetic cutoff can be well accounted for by assuming these particles to be secondaries originating from the interaction of Cosmic Ray protons with the atmosphere. Simulation results are reported

L. Derome; M. Buenerd; A. Barrau; A. Bouchet; A. Menchaca-Rocha; T. Thuillier

2000-06-12T23:59:59.000Z

280

Simulation of the Cosmic Ray Moon Shadow in the Geomagnetic field  

E-Print Network (OSTI)

An accurate MonteCarlo simulation of the deficit of primary cosmic rays in the direction of the Moon has been developed to interpret the observations reported in the TeV energy region until now. Primary particles are propagated trough the geomagnetic field in the Earth-Moon system. The algorithm is described and the contributions of the detector resolution and of the geomagnetic field are disentangled.

Di Sciascio, G

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

FLOODING  

Science Conference Proceedings (OSTI)

... you need only to support low load and you ... Yes, of course, energy may or may not be ... the network is, and moderate per-node resource consumption. ...

2009-02-03T23:59:59.000Z

282

Influence of ENSO on Flood Frequency along the California Coast  

Science Conference Proceedings (OSTI)

The influence of the El Nińo–Southern Oscillation (ENSO) phenomenon on flooding in California coastal streams is investigated by analyzing the annual peak floods recorded at 38 gauging stations. The state of ENSO prior to and during flooding is ...

E. D. Andrews; Ronald C. Antweiler; Paul J. Neiman; F. Martin Ralph

2004-01-01T23:59:59.000Z

283

California climate change, hydrologic response, and flood forecasting  

SciTech Connect

There is strong evidence that the lower atmosphere has been warming at an unprecedented rate during the last 50 years, and it is expected to further increase at least for the next 100 years. Warmer air mass implies a higher capacity to hold water vapor and an increased likelihood of an acceleration of the global water cycle. This acceleration is not validated and considerable new research has gone into understanding aspects of the water cycle (e.g. Miller et al. 2003). Several significant findings on the hydrologic response to climate change can be reported. It is well understood that the observed and expected warming is related to sea level rise. In a recent seminar at Lawrence Berkeley National Laboratory, James Hansen (Director of the Institute for Space Studies, National Aeronautics and Space Administration) stressed that a 1.25 Wm{sup -2} increase in radiative forcing will lead to an increase in the near surface air temperature by 1 C. This small increase in temperature from 2000 levels is enough to cause very significant impacts to coasts. Maury Roos (Chief Hydrologist, California Department of Water Resources) has shown that a 0.3 m rise in sea level shifts the San Francisco Bay 100-year storm surge flood event to a 10-year event. Related coastal protection costs for California based on sea level rise are shown. In addition to rising sea level, snowmelt-related streamflow represents a particular problem in California. Model studies have indicated that there will be approximately a 50% decrease in snow pack by 2100. This potential deficit must be fully recognized and plans need to be put in place well in advance. In addition, the warmer atmosphere can hold more water vapor and result in more intense warm winter-time precipitation events that result in flooding. During anticipated high flow, reservoirs need to release water to maintain their structural integrity. California is at risk of water shortages, floods, and related ecosystem stresses. More research needs to be done to further improve our ability to forecast weather events at longer time scales. Seasonal predictions have been statistical and only recently have studies begun to use ensemble simulations and historical observations to constrain such predictions. Understanding the mechanisms of large-scale atmospheric dynamics and its local impacts remain topics of intensive research. The ability to predict extreme events and provide policy makers with this information, along with climate change and hydrologic response information, will help to guide planning to form a more resilient infrastructure in the future.

Miller, Norman L.

2003-11-11T23:59:59.000Z

284

A spatially distributed flash flood forecasting model  

Science Conference Proceedings (OSTI)

This paper presents a distributed model that is in operational use for forecasting flash floods in northern Austria. The main challenge in developing the model was parameter identification which was addressed by a modelling strategy that involved a model ... Keywords: Distributed modelling, Dominant processes concept, Floods, Forecasting, Kalman Filter, Model accuracy, Parameter identification, Stream routing

Günter Blöschl; Christian Reszler; Jürgen Komma

2008-04-01T23:59:59.000Z

285

Los Alamos provides HOPE for radiation belt storm probes  

NLE Websites -- All DOE Office Websites (Extended Search)

HOPE for radiation belt storm probes HOPE for radiation belt storm probes Los Alamos provides HOPE for radiation belt storm probes The HOPE analyzer is one of a suite of instruments that was successfully launched as part of the Radiation Belt Storm Probe mission. August 30, 2012 Artist's rendering showing two spacecraft representing the not-yet-designed Radiation Belt Storm Probes that will study the sun and its effects on Earth. PHOTO CREDIT: Johns Hopkins University Applied Physics Laboratory Artist's rendering showing two spacecraft representing the not-yet-designed Radiation Belt Storm Probes that will study the sun and its effects on Earth. PHOTO CREDIT: Johns Hopkins University Applied Physics Laboratory Contact James E. Rickman Communications Office (505) 665-9203 Email "Today we are boldly going where no spacecraft ever wants to go."

286

Notice of Intent (NOI) for Storm Water Discharges Associated with  

Open Energy Info (EERE)

Intent (NOI) for Storm Water Discharges Associated with Intent (NOI) for Storm Water Discharges Associated with Construction Activities under TPDES General Permit (TXR150000) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Reference Material: Notice of Intent (NOI) for Storm Water Discharges Associated with Construction Activities under TPDES General Permit (TXR150000) Details Activities (0) Areas (0) Regions (0) Abstract: Unavailable Author(s): Unknown Published: Texas Commission on Environmental Quality, Date Unknown Document Number: Unavailable DOI: Unavailable Source: View Original Document Retrieved from "http://en.openei.org/w/index.php?title=Notice_of_Intent_(NOI)_for_Storm_Water_Discharges_Associated_with_Construction_Activities_under_TPDES_General_Permit_(TXR150000)&oldid=598006"

287

Storm Water Discharge Permits (Wisconsin) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storm Water Discharge Permits (Wisconsin) Storm Water Discharge Permits (Wisconsin) Storm Water Discharge Permits (Wisconsin) < Back Eligibility Agricultural Commercial Construction Developer Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Program Info Start Date 08/2004 State Wisconsin Program Type Siting and Permitting Provider Department of Natural Resources Wisconsin's storm water runoff regulations include permitting requirements for construction sites and industrial facilities, including those

288

Creative homeland security : imagining the next big solar storm.  

E-Print Network (OSTI)

??Creative Homeland Security: Imagining the next big solar storm aims to examine the use of creative practice within homeland security research. In this thesis, a… (more)

Alfonso, Jonathan Rousseau

2012-01-01T23:59:59.000Z

289

Visualizing Storms from NCAR's Atmosphere Model at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

Community Atmosphere Model, we are studying how well the model can reproduced observed tropical cyclone statistics. The simulated storms seen in this animation are generated...

290

Low frequency geomagnetic eld uctuations at low latitude during the passage of a higher pressure solar wind region  

E-Print Network (OSTI)

Low frequency geomagnetic ®eld ¯uctuations at low latitude during the passage of a higher pressure ¯uctuations in the frequency range (0.8±5.5 mHz) for both the horizontal geomagnetic ®eld components. Spectral of the geomagnetic ®eld components at L'Aquila (Italy, v 1X6, Francia and Villante, 1997) we found statistical

Paris-Sud XI, Université de

291

THE DISCOVERY OF GEOMAGNETICALLY TRAPPED COSMIC-RAY ANTIPROTONS  

Science Conference Proceedings (OSTI)

The existence of a significant flux of antiprotons confined to Earth's magnetosphere has been considered in several theoretical works. These antiparticles are produced in nuclear interactions of energetic cosmic rays with the terrestrial atmosphere and accumulate in the geomagnetic field at altitudes of several hundred kilometers. A contribution from the decay of albedo antineutrons has been hypothesized in analogy to proton production by neutron decay, which constitutes the main source of trapped protons at energies above some tens of MeV. This Letter reports the discovery of an antiproton radiation belt around the Earth. The trapped antiproton energy spectrum in the South Atlantic Anomaly (SAA) region has been measured by the PAMELA experiment for the kinetic energy range 60-750 MeV. A measurement of the atmospheric sub-cutoff antiproton spectrum outside the radiation belts is also reported. PAMELA data show that the magnetospheric antiproton flux in the SAA exceeds the cosmic-ray antiproton flux by three orders of magnitude at the present solar minimum, and exceeds the sub-cutoff antiproton flux outside radiation belts by four orders of magnitude, constituting the most abundant source of antiprotons near the Earth.

Adriani, O. [Department of Physics, University of Florence, I-50019 Sesto Fiorentino, Florence (Italy); Barbarino, G. C. [Department of Physics, University of Naples 'Federico II', I-80126 Naples (Italy); Bazilevskaya, G. A. [Lebedev Physical Institute, RU-119991, Moscow (Russian Federation); Bellotti, R.; Bruno, A.; Cafagna, F. [Department of Physics, University of Bari, I-70126 Bari (Italy); Boezio, M.; Bonvicini, V. [INFN, Sezione di Trieste, I-34149 Trieste (Italy); Bogomolov, E. A. [Ioffe Physical Technical Institute, RU-194021 St. Petersburg (Russian Federation); Bongi, M.; Bottai, S. [INFN, Sezione di Florence, I-50019 Sesto Fiorentino, Florence (Italy); Borisov, S.; Casolino, M.; De Pascale, M. P.; De Santis, C. [INFN, Sezione di Rome 'Tor Vergata', I-00133 Rome (Italy); Campana, D.; Carbone, R.; Consiglio, L. [INFN, Sezione di Naples, I-80126 Naples (Italy); Carlson, P. [KTH, Department of Physics, and the Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, SE-10691 Stockholm (Sweden); Castellini, G., E-mail: alessandro.bruno@ba.infn.it [IFAC, I-50019 Sesto Fiorentino, Florence (Italy)

2011-08-20T23:59:59.000Z

292

The discovery of geomagnetically trapped cosmic ray antiprotons  

E-Print Network (OSTI)

The existence of a significant flux of antiprotons confined to Earth's magnetosphere has been considered in several theoretical works. These antiparticles are produced in nuclear interactions of energetic cosmic rays with the terrestrial atmosphere and accumulate in the geomagnetic field at altitudes of several hundred kilometers. A contribution from the decay of albedo antineutrons has been hypothesized in analogy to proton production by neutron decay, which constitutes the main source of trapped protons at energies above some tens of MeV. This Letter reports the discovery of an antiproton radiation belt around the Earth. The trapped antiproton energy spectrum in the South Atlantic Anomaly (SAA) region has been measured by the PAMELA experiment for the kinetic energy range 60--750 MeV. A measurement of the atmospheric sub-cutoff antiproton spectrum outside the radiation belts is also reported. PAMELA data show that the magnetospheric antiproton flux in the SAA exceeds the cosmic-ray antiproton flux by three orders of magnitude at the present solar minimum, and exceeds the sub-cutoff antiproton flux outside radiation belts by four orders of magnitude, constituting the most abundant source of antiprotons near the Earth.

O. Adriani; G. C. Barbarino; G. A. Bazilevskaya; R. Bellotti; M. Boezio; E. A. Bogomolov; M. Bongi; V. Bonvicini; S. Borisov; S. Bottai; A. Bruno; F. Cafagna; D. Campana; R. Carbone; P. Carlson; M. Casolino; G. Castellini; L. Consiglio; M. P. De Pascale; C. De Santis; N. De Simone; V. Di Felice; A. M. Galper; W. Gillard; L. Grishantseva; G. Jerse; A. V. Karelin; M. D. Kheymits; S. V. Koldashov; S. Y. Krutkov; A. N. Kvashnin; A. Leonov; V. Malakhov; L. Marcelli; A. G. Mayorov; W. Menn; V. V. Mikhailov; E. Mocchiutti; A. Monaco; N. Mori; N. Nikonov; G. Osteria; F. Palma; P. Papini; M. Pearce; P. Picozza; C. Pizzolotto; M. Ricci; S. B. Ricciarini; L. Rossetto; R. Sarkar; M. Simon; R. Sparvoli; P. Spillantini; Y. I. Stozhkov; A. Vacchi; E. Vannuccini; G. Vasilyev; S. A. Voronov; Y. T. Yurkin; J. Wu; G. Zampa; N. Zampa; V. G. Zverev

2011-07-25T23:59:59.000Z

293

Mobility control of caustic flood  

SciTech Connect

Displacement tests to date of oil field core with alkaline solutions at reservoir temperature show low tertiary oil recovery. Inadequate mobility control is singled out as the reason for such poor recovery. To test the validity of this reasoning, a laboratory study was undertaken in which a high heat resistant polymer was used as the mobility control agent in a hot alkaline solution recovery technique. A combination of varying concentration and volumes of the polymer solution was injected into the sandpack which was then flooded with hot sodium hydroxide solution. The range of polymer concentration was between 0.0% and 3.0%, while the volume varied between 0.0 pore volume and 1.7 pore volume. It was observed that polymer injection actually did improve recovery substantially and that there is an optimum concentration and slug size of polymer for a particular reservoir. Higher concentrations of pore volumes injected did not improve recovery significantly.

Alam, M.W.; Tiab, D.

1988-01-01T23:59:59.000Z

294

Measuring sediment yields of storms using PSALT  

E-Print Network (OSTI)

ABSTRACT Storm yields of water and sediment are being measured as part of a study of the effects of roading, logging, and burning in a second-growth redwood forest in northern California. Two primary basins, each about 500 ha, and 13 sub-basins in one of them are measured for sediment flux and the presence and magnitude of sediment-based “cumulative effects”. Study objectives require a more sophisticated sediment sampling design than typically used in watershed experiments. Sediment is sampled and estimated by using PSALT- a probability-based method for sampling that enhances data collection during high flows. The method is applied to storms defined after field data are collected. The sampling sites are visited at arbitrary times during storm periods. Because PSALT data are independent they can be combined to give unbiased estimates of suspended sediment yield and its variance during storms. Problems of applying the method to a large number of basins are disc ussed along with their solutions. Le calcul des debits de sediment provenant des averses en utilisant la methode PSALT Resume Les debits de l’eau et des sediments, provenant des averses sont mesures comme un element de l’etude des effets de la construction de routes, du deboisement et du brulage qui y fait suite dans une fore ^ t de bois rouge deuxieme generation dans le nord de la Californie. Sur deux bassins versants principaux, chacun d’une etendue d’a peu pres 500 ha, ainsi que sur 13 sous-bassins qui se trouvent dans I’un des deux, on mesure le flux des sediments et la presence et la grandeur des “effets cumulatifs ” de ceux-ci. Les objectifs de I’etude exigent un echantillonnage des sediments qui serait plus sophistique que celui qui est typiquement employe dans les analyses des versants. Le sediment est donc echantillonne et estime par moyen de PSALT- une methode d’echantillonnage fondee sur la probabilite, qui donne plus de poids a la quantite des donnees rassemblees pendant les ecoulements abondants. Or, la methode s’applique aux averses 315 Robert B. Thomas 316

Robert B. Thomas

1988-01-01T23:59:59.000Z

295

Did Open Solar Magnetic Field Increase during the Last 100 Years: A Reanalysis of Geomagnetic Activity  

E-Print Network (OSTI)

Long-term geomagnetic activity presented by the aa index has been used to show that the heliospheric magnetic field has more than doubled during the last 100 years. However, serious concern has been raised on the long-term consistency of the aa index and on the centennial rise of the solar magnetic field. Here we reanalyze geomagnetic activity during the last 100 years by calculating the recently suggested IHV (Inter-Hour Variability) index as a measure of local geomagnetic activity for seven stations. We find that local geomagnetic activity at all stations follows the same qualitative long-term pattern: an increase from early 1900s to 1960, a dramatic dropout in 1960s and a (mostly weaker) increase thereafter. Moreover, at all stations, the activity at the end of the 20th century has a higher average level than at the beginning of the century. This agrees with the result based on the aa index that global geomagnetic activity, and thereby, the open solar magnetic field has indeed increased during the last 100 years. However, quantitatively, the estimated centennial increase varies greatly from one station to another. We find that the relative increase is higher at the high-latitude stations and lower at the low and mid-latitude stations. These differences may indicate that the fraction of solar wind disturbances leading to only moderate geomagnetic activity has increased during the studied time interval. We also show that the IHV index needs to be corrected for the long-term change of the daily curve, and calculate the corrected IHV values. Most dramatically, we find the centennial increase in global geomagnetic activity was considerably smaller, only about one half of that depicted by the aa index.

K. Mursula; D. Martini; A. Karinen

2004-11-16T23:59:59.000Z

296

Observations of a Storm Containing Misocyclones, Downbursts, and Horizontal Vortex Circulations  

Science Conference Proceedings (OSTI)

On 30 June 1982, a multicellular storm in Colorado produced four downbursts, three misocyclones, a miso-anticyclone, and horizontal vortex circulations within a relatively small area of the storm. Weather events associated with this storm ...

Cathy J. Kessinger; David B. Parsons; James W. Wilson

1988-10-01T23:59:59.000Z

297

Radar Reflectivity–Derived Thunderstorm Parameters Applied to Storm Longevity Forecasting  

Science Conference Proceedings (OSTI)

In order for the Federal Aviation Administration (FAA) to use airspace more efficiently during thunderstorm events, accurate storm longevity forecasts are needed. Relationships between 16 radar reflectivity–derived storm characteristics and storm ...

P. L. MacKeen; H. E. Brooks; K. L. Elmore

1999-04-01T23:59:59.000Z

298

Winter Storms over the San Juan Mountains. Part II: Microphysical Processes  

Science Conference Proceedings (OSTI)

Airborne observations of wintertime storms in southeastern Colorado have shown that the microphysical structure of those storms evolved in close relationship to the dynamical structure. The storms evolved from deep synoptic-scale systems to ...

William A. Cooper; Clive P. R. Saunders

1980-08-01T23:59:59.000Z

299

A Retrospective Evaluation of the Storm Surge Produced by Hurricane Gustav (2008): Forecast and Hindcast Results  

Science Conference Proceedings (OSTI)

The evolution and convergence of modeled storm surge were examined using a high-resolution implementation of the Advanced Circulation Coastal Ocean and Storm Surge (ADCIRC) model for Hurricane Gustav (2008). The storm surge forecasts were forced ...

Cristina Forbes; Richard A. Luettich Jr.; Craig A. Mattocks; Joannes J. Westerink

2010-12-01T23:59:59.000Z

300

Analysis and Simulation of a Winter Storm over Utah  

Science Conference Proceedings (OSTI)

The evolution of a major winter storm over Utah during 6–7 January 1992 is analyzed using surface and upper-air observations and satellite imagery. A mesoscale model is used to deduce the dynamical processes that took place during the storm. ...

John D. Horel; Chris V. Gibson

1994-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Storm tide impact and consequence modelling: Some preliminary observations  

Science Conference Proceedings (OSTI)

The rapid growth of urban development in coastal areas of Queensland (Australia) has significantly increased the number of people exposed to the risk of storm tides generated by tropical cyclones. To gain a better understanding of the vulnerability and ... Keywords: Cyclone, Hazard, Risk, Storm tide, Vulnerability

K. J. Granger; D. I. Smith

1995-05-01T23:59:59.000Z

302

The Birth and Early Years of the Storm Prediction Center  

Science Conference Proceedings (OSTI)

An overview of the birth and development of the National Weather Service’s Storm Prediction Center, formerly known as the National Severe Storms Forecast Center, is presented. While the center’s immediate history dates to the middle of the ...

Stephen F. Corfidi

1999-08-01T23:59:59.000Z

303

The Structure of Near-Inertial Waves during Ocean Storms  

Science Conference Proceedings (OSTI)

Current meter data from two sites were analyzed for near-inertial motions generated by storm during the ten-month period of the Ocean Storms Experiment in the northeast Pacific Ocean. The most striking feature of the inertial wave response to ...

Hongbo Qi; Roland A. De Szoeke; Clayton A. Paulson; Charles C. Eriksen

1995-11-01T23:59:59.000Z

304

Cascade or domino effects in flood impact analysis in GIS  

Science Conference Proceedings (OSTI)

Floods are common natural occurring disaster in most parts of the world. It results into damage of human life and environment but not seldom are the side effects of flooding causing more damages than the flood itself. To investigate such Cascade or Domino ... Keywords: GIS, cascade and domino effects, flood, risk

Ĺke Sivertun; Vimalkumar Vaghani

2007-08-01T23:59:59.000Z

305

Imaging and Spectral Studies of Solar type I Noise Storms at Metric Wavelengths.  

E-Print Network (OSTI)

??Type I noise storms constitute a sizeable fraction of the active-Sun component of solar radiation at meter wavelengths. The storms occur over a prolonged duration… (more)

Shanmugha Sundaram, G A

2004-01-01T23:59:59.000Z

306

The Energy Department Prepares for Tropical Storm Karen | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The Energy Department Prepares for Tropical Storm Karen The Energy Department Prepares for Tropical Storm Karen The Energy Department Prepares for Tropical Storm Karen October 4, 2013 - 3:00pm Addthis Marissa Newhall Marissa Newhall Managing Editor, Energy.gov What does this mean for me? Follow the latest news on Tropical Storm Karen by visiting the FEMA blog. Stay up-to-date on energy delivery impacts by reading twice-daily situation reports from the Energy Department. Visit ready.gov for more information about emergency preparedness. Editor's note: As of Monday, October 7, 2013, Energy Department reporting about Tropical Storm Karen has concluded, and no additional situation reports will be posted. The Department of Energy (DOE) is working closely with the Federal Emergency Management Agency (FEMA) and in support of state and local

307

ARM - Field Campaign - Colorado: The Storm Peak Lab Cloud Property  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsColorado: The Storm Peak Lab Cloud Property Validation govCampaignsColorado: The Storm Peak Lab Cloud Property Validation Experiment (STORMVEX) Campaign Links STORMVEX Website Related Campaigns Colorado: CFH/CMH Deployment to StormVEx 2011.02.01, Mace, AMF Colorado: SP2 Deployment at StormVEx 2010.11.15, Sedlacek, AMF Colorado : Cavity Attenuated Phase Shift 2010.11.15, Massoli, AMF Colorado: Infrared Thermometer (IRT) 2010.11.15, Mace, AMF Colorado: StormVEX Aerosol Size Distribution 2010.11.15, Hallar, AMF Colorado: Direct Measurements of Snowfall 2010.11.15, McCubbin, AMF Colorado: Thunderhead Radiative Flux Analysis Campaign 2010.11.15, Long, AMF Colorado: Ice Nuclei and Cloud Condensation Nuclei Characterization 2010.11.15, Cziczo, AMF Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA.

308

Further constraints on electron acceleration in solar noise storms  

E-Print Network (OSTI)

We reexamine the energetics of nonthermal electron acceleration in solar noise storms. A new result is obtained for the minimum nonthermal electron number density required to produce a Langmuir wave population of sufficient intensity to power the noise storm emission. We combine this constraint with the stochastic electron acceleration formalism developed by Subramanian & Becker (2005) to derive a rigorous estimate for the efficiency of the overall noise storm emission process, beginning with nonthermal electron acceleration and culminating in the observed radiation. We also calculate separate efficiencies for the electron acceleration -- Langmuir wave generation stage and the Langmuir wave -- noise storm production stage. In addition, we obtain a new theoretical estimate for the energy density of the Langmuir waves in noise storm continuum sources.

Prasad Subramanian; Peter A. Becker

2006-02-28T23:59:59.000Z

309

Ionosphere dynamics over the Southern Hemisphere during the 31 March 2001 severe magnetic storm using multi-instrument measurement data  

E-Print Network (OSTI)

the onset of solar-induced storms and gives warnings togeomagnetic storms, the disturbed solar wind com- presses

Yizengaw, E; Dyson, P L; Essex, E A; Moldwin, M B

2005-01-01T23:59:59.000Z

310

Ensemble Forecast of a Typhoon Flood Event  

Science Conference Proceedings (OSTI)

A high-resolution nested regional spectral model and an ensemble prediction system are combined to forecast the track, intensity, and flooding precipitation arising from Typhoon Winnie of August 1997, which eventually reached supertyphoon status. ...

Brian P. Mackey; T. N. Krishnamurti

2001-08-01T23:59:59.000Z

311

Aqueous flooding methods for tertiary oil recovery  

DOE Patents (OSTI)

A method of aqueous flooding of subterranean oil bearing formation for tertiary oil recovery involves injecting through a well into the formation a low alkaline pH aqueous sodium bicarbonate flooding solution. The flooding solution's pH ranges from about 8.25 to 9.25 and comprises from 0.25 to 5 weight percent and preferably about 0.75 to 3.0 weight percent of sodium bicarbonate and includes a petroleum recovery surfactant of 0.05 to 1.0 weight percent and between 1 and 20 weight percent of sodium chloride. After flooding, an oil and water mixture is withdrawn from the well and the oil is separated from the oil and water mixture.

Peru, Deborah A. (Bartlesville, OK)

1989-01-01T23:59:59.000Z

312

Frontal Focusing of a Flooding Rainstorm  

Science Conference Proceedings (OSTI)

A heavy rainstorm over Kentucky, producing extensive flooding, was concentrated in a narrow band oriented nearly zonally just south of the Ohio River. Analysis of routine surface observations showed that an intense quasi-stationary surface front ...

Frederick Sanders

2000-12-01T23:59:59.000Z

313

Improved Accuracy in Severe Storm Forecasting by the Severe Local Storms Unit during the Last 25 Years: Then versus Now  

Science Conference Proceedings (OSTI)

The purpose of this paper is to review the large strides made in tornado and severe thunderstorm forecasting by the Severe Local Storms Unit (SELS) of the National Severe Storms Forecast Center during the last 25 years or so of its existence. The ...

Frederick P. Ostby

1999-08-01T23:59:59.000Z

314

The Local Winter Storm Scale: A Measure of the Intrinsic Ability of Winter Storms to Disrupt Society  

Science Conference Proceedings (OSTI)

A local winter storm scale (LWSS) is developed to categorize the disruption caused by winter storms using archived surface weather observations from a single location along the U.S. East Coast. Development of LWSS is motivated by the recognition that the ...

Brian J. Cerruti; Steven G. Decker

2011-06-01T23:59:59.000Z

315

A Challenging Solar Eruptive Event of 18 November 2003 and the Causes of the 20 November Geomagnetic Superstorm. I. Unusual History of an Eruptive Filament  

E-Print Network (OSTI)

This is the first of four companion papers, which analyze a complex eruptive event of 18 November 2003 in AR 10501 and the causes of the largest Solar Cycle 23 geomagnetic storm on 20 November 2003. Analysis of a complete data set, not considered before, reveals a chain of eruptions to which hard X-ray and microwave bursts responded. A filament in AR 10501 was not a passive part of a larger flux rope, as usually considered. The filament erupted and gave origin to a CME. The chain of events was as follows: i) an eruption at 07:29 accompanied by a not reported M1.2 class flare associated with the onset of a first southeastern CME1, which is not responsible for the superstorm; ii) a confined eruption at 07:41 (M3.2 flare) that destabilized the filament; iii) the filament acceleration (07:56); iv) the bifurcation of the eruptive filament that transformed into a large cloud; v) an M3.9 flare in AR 10501 associated to this transformation. The transformation of the filament could be due to its interaction with the m...

Grechnev, V V; Slemzin, V A; Chertok, I M; Filippov, B P; Rudenko, G V; Temmer, M

2013-01-01T23:59:59.000Z

316

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 101, NO. B5, PAGES 11,655-11,663, MAY 10, 1996 Geomagnetic field inclinations for the past 400 kyr from the  

E-Print Network (OSTI)

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 101, NO. B5, PAGES 11,655-11,663, MAY 10, 1996 Geomagnetic Institute of Technology, Pasadena Abstract. A volcanic record of geomagnetic field inclination for the past of the geomagnetic field. The secular variation has a mean of 30.9° (95= 2.27°), which is significantly shallower

Bruck, Jehoshua (Shuki)

317

December 8, 2006 19:41 Proceedings Trim Size: 9in x 6in Wascom05 ON THE GEOMAGNETIC DIRECTION PROBLEM  

E-Print Network (OSTI)

December 8, 2006 19:41 Proceedings Trim Size: 9in x 6in Wascom05 ON THE GEOMAGNETIC DIRECTION to the problem of reconstructing the geomagnetic field outside the earth from directional data measured harmonic analysis of the geomagnetic field direction data. J. Geomag. Geoelectr. 28, 11­29 (1976). 2

Kaiser, Ralf

318

Geomagnetic field intensity changes in Sweden between 9000 and 450 cal BP: extending the record of barchaeomagnetic jerksQ by  

E-Print Network (OSTI)

Geomagnetic field intensity changes in Sweden between 9000 and 450 cal BP: extending the record in geomagnetic field intensity occurred at ~8400, ~6400, 3900 and 2800 cal BP. The maximum field intensity at 2800 cal BP was associated with the most rapid change in the direction of the geomagnetic vector. While

Sandgren, Per

319

New indices of geomagnetic activity at test: Comparing the correlation of the analogue ak index with the digital Ah and IHV  

E-Print Network (OSTI)

New indices of geomagnetic activity at test: Comparing the correlation of the analogue ak index Abstract We test here two recently proposed indices of geomagnetic activity, the Ah index and the IHV index, which are based on digitally available hourly geomagnetic measurements. We study their correlation

Mursula, Kalevi

320

December 8, 2006 19:41 Proceedings Trim Size: 9in x 6in Wascom05 ON THE GEOMAGNETIC DIRECTION PROBLEM  

E-Print Network (OSTI)

December 8, 2006 19:41 Proceedings Trim Size: 9in x 6in Wascom05 ON THE GEOMAGNETIC DIRECTION is related to the problem of reconstructing the geomagnetic field outside the earth from directional data harmonic analysis of the geomagnetic field direction data. J. Geomag. Geoelectr. 28, 11--29 (1976). 2

Kaiser, Ralf

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

High school students' preconceptions and conceptions about Tropical Storm Allison  

E-Print Network (OSTI)

Today many people with no personal experience of living through a tropical storm reside in coastal regions in harm's way. There is a need to educate this population about storm risks. One good venue for this purpose is the public school system. Science educators have concluded it is important to establish a knowledge base about the various ways students think and learn in the classroom in order to design appropriate and effective instructional materials. There is also a need to fill the gap in hazards research about students' preconceptions and conceptions about these events. The purpose of this research study is to determine high school students' preconceptions and conceptions about tropical storms and the damage they do to coastal communities. This study used Lee's (1999) research study on Hurricane Andrew as a model and augments Lee's results. In-depth interviews, a survey, and class discussions with high school students living in Houston, Texas provided the data. The students, representing a wide variety of ethnic backgrounds, vary in their preconceptions and conceptions about tropical storms. The results of the data show conceptions students developed after personal experiences with Tropical Storm Allison formed most of the preconceptions they have regarding their scientific knowledge about tropical storms. Overall, students' scientific knowledge about tropical storms is poor.

Belknap, Julia

2003-01-01T23:59:59.000Z

322

Langmuir Waves and Electron Acceleration at Heliospheric Shocks  

E-Print Network (OSTI)

Earth and Humanity The geomagnetic impact of solar activitywere often followed by large geomagnetic storms and auroralof energy which drives geomagnetic activity. The role of

Pulupa, Marc Peter

2010-01-01T23:59:59.000Z

323

Storm Water Management Plan Program (Nebraska) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storm Water Management Plan Program (Nebraska) Storm Water Management Plan Program (Nebraska) Storm Water Management Plan Program (Nebraska) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Nebraska Program Type Grant Program Provider Natural Resources This legislation implements the National Pollutant Discharge Elimination

324

Solar Storm Risks for Maine and the New England Electric Grid,  

E-Print Network (OSTI)

Solar Storm Risks for Maine and the New England Electric Grid, and Potential Protective Measures.resilientsocieties.org #12;1 EXECUTIVE SUMMARY A severe solar storm--a historical example being the Carrington Event of 1859 of the eastern United States. Severe solar storms--of the intensity of the 1921 New York Central Storm

Schrijver, Karel

325

Simulation demonstrates economics of minnelusa polymer floods  

SciTech Connect

Defining some variables with a probability distribution can establish more precisely the economic value of such projects as polymer flooding in the Minnelusa formation. An enhanced-oil-recovery (EOR) project often presents a difficult investment decision. The substantial risks and performance uncertainties must be carefully weighted against the investment costs. a Monte Carlo simulation model was used to characterize the incremental economics of a Minnelusa polymer flood. The principal questions addressed in this paper are: What is the likelihood of the EOR project being an economic success What is the expected economic benefit of the polymer flood With representative field parameters and price projections, the typical Minnelusa polymer flood was found to have a 93% chance of economic success. The expected monetary value (EMV) for the project is $1.6 million. This expected net gain results from the incremental cost of about $50,000 for additional surface equipment and about $480,000 for chemicals. Although each project must be evaluated on its own merits, these results present a strong case of considering polymer-augmented floods in the Minnelusa.

Hochanadel, S.M. (Tiorco Inc., Englewood, CO (US)); Schuyler, J.R.

1991-05-27T23:59:59.000Z

326

Copyright 2013 IEEE. Power Grid Sensitivity Analysis of Geomagnetically Induced Currents  

E-Print Network (OSTI)

, primarily the high voltage transformers. The second is the loss of reactive power support leadingCopyright © 2013 IEEE. Power Grid Sensitivity Analysis of Geomagnetically Induced Currents Thomas J, IEEE, James D. Weber, Member, IEEE Submitted to IEEE Transactions on Power Systems, March 2013

327

Managing Storm Aftermath in Alabama | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Managing Storm Aftermath in Alabama Managing Storm Aftermath in Alabama Managing Storm Aftermath in Alabama June 18, 2010 - 3:19pm Addthis Montgomery's horizontal grinder has normal handling capacity of 108 tons per hour. | Photo Courtesy of Lynda Wool Montgomery's horizontal grinder has normal handling capacity of 108 tons per hour. | Photo Courtesy of Lynda Wool Lindsay Gsell Warm, humid climate and proximity to the Gulf of Mexico produce turbulent weather patterns that regularly bring tornadoes and hurricanes to Montgomery, Ala. As a result, each year the state's capital city must manage tons of construction waste and storm debris. In doing so, city officials noticed the amount of good wood going to waste. Now, thanks to a $2.5 million Energy Efficiency Conservation Block Grant (EECBG) from the U.S. Department of Energy, Montgomery will revamp its

328

Past East Pacific Storm Tracks | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Past East Pacific Storm Tracks Past East Pacific Storm Tracks Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Past East Pacific Storm Tracks Dataset Summary Description The National Weather Service (NWS) maintains historical Eastern Pacific Ocean hurricane weather data in a format that can be exploited by Graphic Information System (GIS) software. Using KML/KMZ formats, it takes the numbers and words from the rows and columns in databases and spreadsheets and puts them on a map. This data file contains information about named and unnamed Eastern Pacific Ocean tropical storms and hurricanes from 1949 to 2006. Once downloaded, the file can be decompiled by decade and by year in a a KML/KMZ GIS viewer.

329

Managing Storm Aftermath in Alabama | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Managing Storm Aftermath in Alabama Managing Storm Aftermath in Alabama Managing Storm Aftermath in Alabama June 18, 2010 - 3:19pm Addthis Montgomery's horizontal grinder has normal handling capacity of 108 tons per hour. | Photo Courtesy of Lynda Wool Montgomery's horizontal grinder has normal handling capacity of 108 tons per hour. | Photo Courtesy of Lynda Wool Lindsay Gsell Warm, humid climate and proximity to the Gulf of Mexico produce turbulent weather patterns that regularly bring tornadoes and hurricanes to Montgomery, Ala. As a result, each year the state's capital city must manage tons of construction waste and storm debris. In doing so, city officials noticed the amount of good wood going to waste. Now, thanks to a $2.5 million Energy Efficiency Conservation Block Grant (EECBG) from the U.S. Department of Energy, Montgomery will revamp its

330

NedPower Mount Storm LLC | Open Energy Information  

Open Energy Info (EERE)

NedPower Mount Storm LLC NedPower Mount Storm LLC Jump to: navigation, search Name NedPower Mount Storm LLC Place Chantilly, Virginia Zip 20151 Sector Wind energy Product Owner of the Mount Storm wind project in Grant County, West Virginia. Coordinates 38.883607°, -77.439755° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.883607,"lon":-77.439755,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

331

Additive Noise for Storm-Scale Ensemble Data Assimilation  

Science Conference Proceedings (OSTI)

An “additive noise” method for initializing ensemble forecasts of convective storms and maintaining ensemble spread during data assimilation is developed and tested for a simplified numerical cloud model (no radiation, terrain, or surface fluxes) ...

David C. Dowell; Louis J. Wicker

2009-05-01T23:59:59.000Z

332

The 1 August 1981 MOPE Storm: Observations and Modeling Results  

Science Conference Proceedings (OSTI)

Observations made by the T-28 armored research aircraft, radar, and other data sources were used to study an eastern Moutana hailstorm that developed on 1 August 1981 during the Cooperative Convective Precipitation Experiment season. The storm ...

Rooney S. Kubesh; Dennis J. Musil; Richard D. Farley; Harold D. Orville

1988-03-01T23:59:59.000Z

333

Variability of Storm-Relative Helicity during VORTEX  

Science Conference Proceedings (OSTI)

In this paper, storm-relative helicity (SRH) and low-level vertical shear of the horizontal wind fields were investigated on the mesoscale and stormscale in regions where tornadoes occurred for four case studies using data collected during the ...

Paul M. Markowski; Jerry M. Straka; Erik N. Rasmussen; David O. Blanchard

1998-11-01T23:59:59.000Z

334

Convective Storm Initiation in a Moist Tropical Environment  

Science Conference Proceedings (OSTI)

Radar and satellite data from the Tropical Rainfall Measuring Mission–Large-Scale Biosphere–Atmosphere (TRMM–LBA) project have been examined to determine causes for convective storm initiation in the southwest Amazon region. The locations and ...

Maria Andrea Lima; James W. Wilson

2008-06-01T23:59:59.000Z

335

The ERICA IOP 5 Storm. Part I: Analysis and Simulation  

Science Conference Proceedings (OSTI)

The ERICA IOP 5 storm was the third strongest cyclone observed during the three-month Experiment on Rapidly Intensifying Cyclones over the Atlantic (ERICA) and the least successfully predicted by the operational models. This paper documents the ...

Richard J. Reed; Georg A. Grell; Ying-Hwa Kuo

1993-06-01T23:59:59.000Z

336

Observations of the Overland Reintensification of Tropical Storm Erin (2007)  

Science Conference Proceedings (OSTI)

Atlantic Tropical Depression Five (2007) briefly strengthened into Tropical Storm Erin over the western Gulf of Mexico shortly before making landfall as a tropical depression near Corpus Christi, Texas, on the morning of 16 August 2007. During ...

Derek S. Arndt; Jeffrey B. Basara; Renee A. McPherson; Bradley G. Illston; Gary D. McManus; David B. Demko

2009-08-01T23:59:59.000Z

337

A Climatology of Fatal Convective Wind Events by Storm Type  

Science Conference Proceedings (OSTI)

There are still hundreds of casualties produced by thunderstorm hazards each year in the United States despite the many recent advances in prediction and mitigation of the effects of convective storms. Of the four most common thunderstorm hazards ...

Joseph M. Schoen; Walker S. Ashley

2011-02-01T23:59:59.000Z

338

Boundary Layer Thermodynamics of a High Plains Severe Storm  

Science Conference Proceedings (OSTI)

A new analysis method based on air parcel saturation point is used to intercompare data sampled by different systems (aircraft, rawinsondes, and a surface mesonet) during the passage of one severe storm in the 1981 Cooperative Convective ...

Alan K. Betts

1984-11-01T23:59:59.000Z

339

Hailstone Size Distributions and Their Relationship to Storm Thermodynamics  

Science Conference Proceedings (OSTI)

From ten storms, 184 time-resolved hailstone samples have been collected at the ground in Alberta. For each of the samples collected, hailstone size and concentration were determined and a truncated exponential distribution was fitted to the ...

L. Cheng; M. English; R. Wong

1985-10-01T23:59:59.000Z

340

The National Severe Storms Laboratory Tornado Detection Algorithm  

Science Conference Proceedings (OSTI)

The National Severe Storms Laboratory (NSSL) has developed and tested a tornado detection algorithm (NSSL TDA) that has been designed to identify the locally intense vortices associated with tornadoes using the WSR-88D base velocity data. The ...

E. De Wayne Mitchell; Steven V. Vasiloff; Gregory J. Stumpf; Arthur Witt; Michael D. Eilts; J. T. Johnson; Kevin W. Thomas

1998-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Schools - Electronic Equipment Failures Due to Electrical Storms  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents the investigation of multiple failures of electronic equipment such as computers, telephones, and alarm sensors throughout a school system, usually as a result of electrical storms.

2003-12-31T23:59:59.000Z

342

Storm Tracks and Barotropic Deformation in Climate Models  

Science Conference Proceedings (OSTI)

The relationship between the time-mean planetary-scale deformation field and the structure of midlatitude storm tracks is studied in wintertime simulations of the National Center for Atmospheric Research (NCAR) Community Climate Model and the ...

Robert X. Black; Randall M. Dole

2000-08-01T23:59:59.000Z

343

The Zonal Asymmetry of the Southern Hemisphere Winter Storm Track  

Science Conference Proceedings (OSTI)

Atmospheric general circulation model experiments have been performed to investigate how the significant zonal asymmetry in the Southern Hemisphere (SH) winter storm track is forced by sea surface temperature (SST) and orography. An experiment ...

Masaru Inatsu; Brian J. Hoskins

2004-12-01T23:59:59.000Z

344

Water Vapor Layers in STORM-FEST Rawinsonde Observations  

Science Conference Proceedings (OSTI)

The STORM-FEST (Fronts Experiment Systems Test) rawinsonde data were analyzed to determine the abundance and characteristics of moist layers within the troposphere. A moist layer was defined as a local maximum in relative humidity with lower ...

John P. Iselin; William J. Gutowski Jr.

1997-08-01T23:59:59.000Z

345

The Electrical Structure of Two Supercell Storms during STEPS  

Science Conference Proceedings (OSTI)

Balloon soundings were made through two supercell storms during the Severe Thunderstorm Electrification and Precipitation Study (STEPS) in summer 2000. Instruments measured the vector electric field, temperature, pressure, relative humidity, and ...

Donald R. MacGorman; W. David Rust; Paul Krehbiel; William Rison; Eric Bruning; Kyle Wiens

2005-09-01T23:59:59.000Z

346

Monitoring and Understanding Trends in Extreme Storms: State of Knowledge  

Science Conference Proceedings (OSTI)

The state of knowledge regarding trends and an understanding of their causes is presented for a specific subset of extreme weather and climate types. For severe convective storms (tornadoes, hailstorms, and severe thunderstorms), differences in time and ...

Kenneth E. Kunkel; Thomas R. Karl; Harold Brooks; James Kossin; Jay H. Lawrimore; Derek Arndt; Lance Bosart; David Changnon; Susan L. Cutter; Nolan Doesken; Kerry Emanuel; Pavel Ya. Groisman; Richard W. Katz; Thomas Knutson; James O'Brien; Christopher J. Paciorek; Thomas C. Peterson; Kelly Redmond; David Robinson; Jeff Trapp; Russell Vose; Scott Weaver; Michael Wehner; Klaus Wolter; Donald Wuebbles

2013-04-01T23:59:59.000Z

347

Microphysics of Raindrop Size Spectra: Tropical Continental and Maritime Storms  

Science Conference Proceedings (OSTI)

This work uses raindrop size spectra measured at the surface in tropical continental storms to determine the associated parameters of the best-fit gamma distributions. The physical processes responsible for those parameters and their relations to ...

Carlton W. Ulbrich; David Atlas

2007-11-01T23:59:59.000Z

348

Large-Scale Parallel Computing of Cloud Resolving Storm Simulator  

Science Conference Proceedings (OSTI)

A sever thunderstorm is composed of strong convective clouds. In order to perform a simulation of this type of storms, a very finegrid system is necessary to resolve individual convective clouds within a large domain. Since convective clouds are highly ...

Kazuhisa Tsuboki; Atsushi Sakakibara

2002-05-01T23:59:59.000Z

349

Ohio Valley & Mid-Atlantic Storm SitRep 1  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ohio Valley & Mid-Atlantic Summer Storm Situation Report 1 June 30, 2012 (10:00 AM EDT) http:www.oe.netl.doe.govemergencysitrpt.aspx Highlights: On the evening of June 29,...

350

Band Formation in a New England Winter Storm  

Science Conference Proceedings (OSTI)

This case study addresses mechanisms of band formation in a New England winter storm. The structure of the bands and their environment are documented with synoptic observations, radar data, and analyses of instrumented aircraft flights through ...

Dawn G. Wolfsberg; Kerry A. Emanuel; Richard E. Passarelli

1986-08-01T23:59:59.000Z

351

Canadian Atlantic Storms Program: The Meteorological Field Project  

Science Conference Proceedings (OSTI)

The field phase of the Canadian Atlantic Storms Program (CASP) was conducted from 15 January to 15 March 1986. The principal objective of the meteorological component of the program was to begin the process of improving the understanding and ...

R. E. Stewart; G. A. Isaac; R. W. Shaw

1987-04-01T23:59:59.000Z

352

A History of Severe-Storm-Intercept Field Programs  

Science Conference Proceedings (OSTI)

Efforts to study severe convective storms and tornadoes by intercepting them either on the ground or on airborne platforms are highlighted. Airborne sorties into or near waterspouts in the Florida Keys with instruments were made in the late 1960s ...

Howard B. Bluestein

1999-08-01T23:59:59.000Z

353

Characteristics of Ice Storms in the United States  

Science Conference Proceedings (OSTI)

Freezing rainstorms in the United States during 1949–2000 resulted in 87 catastrophic events, storms causing property losses of more than $1 million, with resulting losses totaling $16.3 billion. Catastrophes and their losses were greatest in the ...

Stanley A. Changnon

2003-05-01T23:59:59.000Z

354

Mixing in the Transition Layer during Two Storm Events  

Science Conference Proceedings (OSTI)

Upper-ocean dynamics analyzed from mooring-array observations are contrasted between two storms of comparable magnitude. Particular emphasis is put on the role of the transition layer, the strongly stratified layer between the well-mixed upper ...

Kathleen Dohan; Russ E. Davis

2011-01-01T23:59:59.000Z

355

Australian Winter Mountain Storm Clouds: Precipitation Augmentation Potential  

Science Conference Proceedings (OSTI)

Two Australian winter mountain storm field research projects were conducted by the Commonwealth Scientific and Industrial Research Organisation Division of Atmospheric Research and the Desert Research Institute Atmospheric Sciences Center in the ...

Alexis B. Long; Elizabeth J. Carter

1996-09-01T23:59:59.000Z

356

Using Wind Anomalies to Forecast East Coast Winter Storms  

Science Conference Proceedings (OSTI)

Forecasting major winter storms is a critical function for all weather services. Conventional model-derived fields from numerical weather prediction models most frequently utilized by operational forecasters, such as pressure level geopotential ...

Neil A. Stuart; Richard H. Grumm

2006-12-01T23:59:59.000Z

357

A Study of Hail Growth Utilizing Observed Storm Conditions  

Science Conference Proceedings (OSTI)

Hail growth is studied in the Westplains, Colorado, storm for which a variety of observations were collected. Measurements from a triple-Doppler radar network and a penetrating aircraft are used to synthesize fields of liquid water content and ...

G. Brant Foote

1984-01-01T23:59:59.000Z

358

A Statistically Derived Prediction Procedure for Tropical Storm Formation  

Science Conference Proceedings (OSTI)

A statistical forecasting experiment was performed to test the capability of predictors derived from observational data (analysis) fields at 950, 700, 500 and 200 mb to forecast tropical storm formation (genesis). National Oceanographic and ...

Thomas J. Perrone; Paul R. Lowe

1986-01-01T23:59:59.000Z

359

Microsoft Word - SWPAIceStormDamage_021009.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

Department of Energy (DOE), continues to make steady progress in its efforts to restore transmission lines in Arkansas and Missouri damaged during an ice storm on January 26-27,...

360

Trends in storm-triggered landslides over southern California  

Science Conference Proceedings (OSTI)

Changes in storm-triggered landslide activity for southern California in a future warming climate are estimated using an advanced, fully three-dimensional, process-based landslide model, SEGMENT-Landslide. SEGMENT-Landslide is driven by extreme ...

Diandong Ren; Lance M. Leslie; Mervyn J. Lynch

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Photographs of the Canyon, Texas Storm on 26 May 1978  

Science Conference Proceedings (OSTI)

Photographs of several severe storm related phenomena are described. A double wall cloud having a double vortex structure evolved from a single wall cloud, and subsequently turned back into a single wall cloud and produced a tornado. In addition, ...

Howard B. Bluestein

1984-12-01T23:59:59.000Z

362

Water Balance of the 1993 Midwest Flood  

E-Print Network (OSTI)

Throughout the spring and summer months of 1993, extended rainfall throughout much of the Midwestern United States caused record flooding that inundated much of the Upper Mississippi River Basin (UMRB). Precipitation in May was more then twice the normal over an area that extended from southeastern South Dakota across Iowa to eastern Kansas. From early June to the end of July, high amounts of precipitation persisted over the upper Midwest (Wahl, et al., 1993). USGS records indicated that at 45 streamflow gauging stations, the peak discharge recorded during 1993 had recurrence intervals of greater than 100 years. However, because of the natural and man-made changes in the flood region, some sites had less-than-record peak discharges (Parret, et al., 1993). The storage of large volumes of water in reservoirs significantly reduced the peak flow and flood damages downstream from the dams (Southard, 1993). Following the 1993 Midwest flood, President Clinton established the Scientific Assessment and Strategy Team (SAST) on November 24, 1993, to study the effects of the flood and to make recommendations about future flood preparedness. The SAST joined the Interagency Floodplain Management Review Committee (FMRC) on January 10, 1994 (FMRC, 1994). As part of this effort, the SAST project identified a need for a daily water balance of the flooded area to determine how much water fell and how quickly it moved through the landscape. There were two significant policy issues resulting from the flood: (1) how did the flood volume and velocity of flow increase by land use changes associated with agricultural development in the Midwest, including extensive drainage of wetlands; and (2) what plan should be adopted for restoration of failed levee systems. The first of these questions is hydrologic, the second, hydraulic. The hydraulic issues were addressed by the SAST project and related efforts by modeling the motion of water through the main tributaries of the Mississippi and Missouri Rivers where the major levee failures occurred. The hydrologic questions were not so readily addressed because of the huge region affected by the flood, some 700,000 km2 in area. Flood hydrology models are normally applied to regions 100 to 1,000 times smaller than this area. Thus, the need for the present study arose – to model the movement of water through the landscape of the SAST study area by constructing a daily water balance in a series of subwatersheds in the flooded area. A USGS WEB site designated for SAST is located at: http://edcwww2.cr.usgs.gov/sast-home.html . Figure 1.1 shows the location and the extent of the SAST study area. This region covers all of the UMRB above St. Louis and that portion of the Missouri Basin whose drainage enters the Missouri River by watershed (Missouri, Platte, Kansas, Osage, and Gasconade Rivers). The contribution of the remainder of the Missouri Basin was accounted for by using gauged data from tributary flows at the border of the study region. The goal of this project was to calculate the daily water balance for the SAST region for 1993. A Geographic Information System (GIS) was used to determine the balance. GIS offers a technology to formulate more objective and consistent methods to synthesize collected data and to assess water quality and quantity over large areas (Maidment, 1996). The spatial resolution of the SAST region was defined by the location of discharge gauging stations as well as the completeness and quality of the discharge record. The preliminary analysis was performed using daily discharge values recorded at 261 USGS stations from 01/01/1993 to 09/30/1993. The final water balance was estimated for 132 watersheds defined by the stations that have a complete discharge record for all days of 1993. The cumulative storage values were then spatially averaged over 4

Mizgalewicz, Pawel J.; Maidment, David R.; White, W. Scott; Ridd, Merrill K.

2003-01-01T23:59:59.000Z

363

Flood Forecasting in River System Using ANFIS  

Science Conference Proceedings (OSTI)

The aim of the present study is to investigate applicability of artificial intelligence techniques such as ANFIS (Adaptive Neuro-Fuzzy Inference System) in forecasting flood flow in a river system. The proposed technique combines the learning ability of neural network with the transparent linguistic representation of fuzzy system. The technique is applied to forecast discharge at a downstream station using flow information at various upstream stations. A total of three years data has been selected for the implementation of this model. ANFIS models with various input structures and membership functions are constructed, trained and tested to evaluate efficiency of the models. Statistical indices such as Root Mean Square Error (RMSE), Correlation Coefficient (CORR) and Coefficient of Efficiency (CE) are used to evaluate performance of the ANFIS models in forecasting river flood. The values of the indices show that ANFIS model can accurately and reliably be used to forecast flood in a river system.

Ullah, Nazrin; Choudhury, P. [Dept. of Civil Eng., NIT, Silchar (India)

2010-10-26T23:59:59.000Z

364

Red Storm usage model :Version 1.12.  

Science Conference Proceedings (OSTI)

Red Storm is an Advanced Simulation and Computing (ASC) funded massively parallel supercomputer located at Sandia National Laboratories (SNL). The Red Storm Usage Model (RSUM) documents the capabilities and the environment provided for the FY05 Tri-Lab Level II Limited Availability Red Storm User Environment Milestone and the FY05 SNL Level II Limited Availability Red Storm Platform Milestone. This document describes specific capabilities, tools, and procedures to support both local and remote users. The model is focused on the needs of the ASC user working in the secure computing environments at Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and SNL. Additionally, the Red Storm Usage Model maps the provided capabilities to the Tri-Lab ASC Computing Environment (ACE) requirements. The ACE requirements reflect the high performance computing requirements for the ASC community and have been updated in FY05 to reflect the community's needs. For each section of the RSUM, Appendix I maps the ACE requirements to the Limited Availability User Environment capabilities and includes a description of ACE requirements met and those requirements that are not met in that particular section. The Red Storm Usage Model, along with the ACE mappings, has been issued and vetted throughout the Tri-Lab community.

Jefferson, Karen L.; Sturtevant, Judith E.

2005-12-01T23:59:59.000Z

365

Storm Water Management Fact Sheet Employee Training DESCRIPTION  

E-Print Network (OSTI)

In-house employee training programs are established to teach employees about storm water management, potential sources of contaminants, and Best Management Practices (BMPs). Employee training programs should instill all personnel with a thorough understanding of their Storm Water Pollution Prevention Plan (SWPPP), including BMPs, processes and materials they are working with, safety hazards, practices for preventing discharges, and procedures for responding quickly and properly to toxic and hazardous material incidents. APPLICABILITY Typically, most industrial facilities have employee training programs. Usually these address such areas as health and safety training and fire protection. Training on storm water management and BMPs can be incorporated into these programs. Employees can be taught through 1) posters, employee meetings, courses, and bulletin boards about storm water management, potential contaminant sources, and prevention of contamination in surface water runoff, and 2) field training programs that show areas of potential storm water contamination and associated pollutants, followed by a discussion of site-specific BMPs by trained personnel. ADVANTAGES AND DISADVANTAGES The program can be standardized and repeated as necessary, both to train new employees and to keep its objectives fresh in the minds of more senior employees. A training program is also flexible and can be adapted as a facility’s storm water management needs change over time. Obstacles to an employee training program include: C Lack of commitment from senior management.

United States

1999-01-01T23:59:59.000Z

366

Sensitivity of Ice Storms in the Southeastern United States to Atlantic SST—Insights from a Case Study of the December 2002 Storm  

Science Conference Proceedings (OSTI)

Meteorological observations and model simulations are used to show that the catastrophic ice storm of 4–5 December 2002 in the southeastern United States resulted from the combination of a classic winter storm and a warm sea surface temperature (...

Renato Ramos da Silva; Gil Bohrer; David Werth; Martin J. Otte; Roni Avissar

2006-05-01T23:59:59.000Z

367

Evolution of Lightning Activity and Storm Charge Relative to Dual-Doppler Analysis of a High-Precipitation Supercell Storm  

Science Conference Proceedings (OSTI)

A high-precipitation tornadic supercell storm was observed on 29–30 May 2004 during the Thunderstorm Electrification and Lightning Experiment. Observational systems included the Oklahoma Lightning Mapping Array, mobile balloon-borne soundings, and ...

Kristin M. Calhoun; Donald R. MacGorman; Conrad L. Ziegler; Michael I. Biggerstaff

2013-07-01T23:59:59.000Z

368

Collaborative web application for flood control system of reservoirs  

Science Conference Proceedings (OSTI)

Flood control for reservoirs require operations in a dynamic and cooperative manner in order to respond to the changing flood control conditions. There is an increasing emphasis on the collaboration of multiple partners with different backgrounds by ...

Chun-tian Cheng; K. W. Chau; Gang Li; Xiang-Yang Li

2005-03-01T23:59:59.000Z

369

Solar equipment ravaged by floods gets new life | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

equipment ravaged by floods gets new life Solar equipment ravaged by floods gets new life May 24, 2010 - 11:56am Addthis Community members install the New Bohemia solar project in...

370

Evaluation of Contemporary Ocean Wave Models in Rare Extreme Events: The “Halloween Storm” of October 1991 and the “Storm of the Century” of March 1993  

Science Conference Proceedings (OSTI)

Two recent severe extratropical storms, the “Halloween storm” of October 26–November 2 1991 (HOS) and the “storm of the century” (SOC) of March 12–15 1993, are characterized by measurements of sea states of unprecedented magnitude off the east ...

V. J. Cardone; R. E. Jensen; D. T. Resio; V. R. Swail; A. T. Cox

1996-02-01T23:59:59.000Z

371

Lab 11: Flooding I ---Understanding the Workings of Streams Introduction  

E-Print Network (OSTI)

1 Lab 11: Flooding I --- Understanding the Workings of Streams Introduction Floods their activities to the natural flooding cycles of the rivers and coasts they lived beside. Still, humans have, this distance can be significantly longer that the straight-line distance separating two points. All other

Chen, Po

372

Application of a model to the evaluation of flood damage  

Science Conference Proceedings (OSTI)

This paper presents the initial results of a common methodology for the evaluation of damage produced by a flood. A model has been developed for flood damage estimation based on a geographic information system (GIS). It could be used by land administration ... Keywords: Damage evaluation, Flood, GIS, Hydraulic modelling, Stage---damage curves

F. Luino; C. G. Cirio; M. Biddoccu; A. Agangi; W. Giulietto; F. Godone; G. Nigrelli

2009-09-01T23:59:59.000Z

373

Time & Freq Sp Publication A  

Science Conference Proceedings (OSTI)

... Includes all observed geomagnetic storms, solar radiation storms (proton events) and Radio blackouts (class M1 and greater flares). ...

2003-04-23T23:59:59.000Z

374

Reconstructing the Texas Flood of 1938  

E-Print Network (OSTI)

Reconstructing the Texas Flood of 1938 Jude Kastens1 | Kevin Dobbs1 | Melinda Luna2 1Kansas Biological Survey, University of Kansas, Lawrence, KS 2Texas Natural Resources Information System, Texas Water Development Board, Austin, TX 2010 Texas GIS Forum October 28, 2010 Austin, TX Email: jkastens

Peterson, Blake R.

375

Flood Fatalities in the United States  

Science Conference Proceedings (OSTI)

This study compiles a nationwide database of flood fatalities for the contiguous United States from 1959 to 2005. Assembled data include the location of fatalities, age and gender of victims, activity and/or setting of fatalities, and the type of ...

Sharon T. Ashley; Walker S. Ashley

2008-03-01T23:59:59.000Z

376

Fuel cell flooding detection and correction  

DOE Patents (OSTI)

Method and apparatus for monitoring an H.sub.2 -O.sub.2 PEM fuel cells to detect and correct flooding. The pressure drop across a given H.sub.2 or O.sub.2 flow field is monitored and compared to predetermined thresholds of unacceptability. If the pressure drop exists a threshold of unacceptability corrective measures are automatically initiated.

DiPierno Bosco, Andrew (Rochester, NY); Fronk, Matthew Howard (Honeoye Falls, NY)

2000-08-15T23:59:59.000Z

377

Mitigating floods : reconstructing Lives : rehabilitating Thatta  

E-Print Network (OSTI)

Pakistan was struck by floods in July 2010, the effects of which left 20.36 million people affected and 1.9 million homes damaged or destroyed'. In the province of Sindh in Pakistan, most of the affected population of the ...

Gul, Marium

2011-01-01T23:59:59.000Z

378

Reduced biodegradability in a polymer flood process  

SciTech Connect

In a polymer flood, where bacterial contamination frequently causes a loss in viscosity of the polymer, the viscosity of the polymer solution is maintained by the use of a xanthan polymer modified by methylation of a portion of the subunit sugar residues of the xanthan base.

Williams, D.; Munnecke, D. M.

1985-05-14T23:59:59.000Z

379

Large hazardous floods as translatory waves  

Science Conference Proceedings (OSTI)

The theory for non-stationary flow in translatory waves is developed for an inclined plane in a prismatic channel and a funneling channel. The existence of translatory waves traveling over dry land or superimposed on constant flow is established, and ... Keywords: Flood hazard, Flow simulation, Jokulhlaup, Translatory waves

Jonas Elíasson; Snorri Pall Kjaran; Sigurdur Larus Holm; Magnus Tumi Gudmundsson; Gudrun Larsen

2007-10-01T23:59:59.000Z

380

Improved Efficiency of Miscible CO2 Floods and Enhanced Prospects for CO2 Flooding Heterogeneous Reservoirs  

SciTech Connect

The goal of this project is to improve the efficiency of miscible CO2 floods and enhance the prospects for flooding heterogeneous reservoirs. This report provides results of the second year of the three-year project that will be exploring three principles: (1) Fluid and matrix interactions (understanding the problems). (2) Conformance control/sweep efficiency (solving the problems. 3) Reservoir simulation for improved oil recovery (predicting results).

Grigg, Reid B.; Schechter, David S.

1999-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Asymptotic directions for selecte cosmic-ray stations calculated using the International Geomagnetic Reference Field for 1980  

SciTech Connect

Asymptotic directions for high-energy solar particles are given for selected cosmic-ray stations. These values were calculated employing the International Geomagnetic Reference Field model for Epoch 1980.0.

Shea, M.A.; Smart, D.F.; Gentile, L.

1987-07-01T23:59:59.000Z

382

Pantex Facility 10-Year Natural Phenomena Flood Hazard Analysis  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Planning (cont.) What's Next FDC-1 Facilities (500 yr Storm) * Critical Mission SSCs * Essential Safety Facilities * Essential Security Facilities Conceptual Study * Mitigation...

383

Some proves of integrated influence of geomagnetic activity and weather changes on human health  

E-Print Network (OSTI)

Our environment includes many factors, and each person on the Earth is permanently influenced by two of them: weather and magnetic field. It was found in the works of many investigators that the weather changes correlate with human health state. In the same time, disturbances of geomagnetic field (as one of the space weather manifestations) may influence bioobjects, including people. In this work we demonstrate the cumulative effect of different external factors (space weather and meteorological weather parameters) on human health on the base of medical experimental data (blood pressure and heart rate data rows for 86 people). It is shown that inclusion both solar-geomagnetic and weather parameters in simulation process give adjusting mixed parameter, which correlates with health state significantly better, than separated environmental parameters do.

Khabarova, O V

2008-01-01T23:59:59.000Z

384

Applying an Integrated Risk Management Approach to Risks from Severe Geomagnetic Disturbances  

Science Conference Proceedings (OSTI)

High-impact, low-frequency (HILF) events such as coordinated risk attacks, pandemics, severe geomagnetic disturbances (GMDs), electromagnetic pulse weapons (EMPs), and high-altitude electromagnetic pulse weapons (HEMPs) have the potential to cause significant damage to the power grid; but because they are rare or have never occurred the industry has little experience in dealing with them. An integrated risk-management strategy is needed to address them. Such a strategy could include a thorough risk ...

2012-10-31T23:59:59.000Z

385

Strong variations of cosmic ray intensity during thunderstorms and associated pulsations of the geomagnetic field  

E-Print Network (OSTI)

Strong variations of the intensity of secondary cosmic rays during thunderstorms are found to be accompanied in some cases by very clear pulsations of the geomagnetic field. The experiment is carried out in the Baksan Valley, North Caucasus, the Carpet air shower array being used as a particle detector. Magnetic field measurements are made with high-precision magnetometers located deep underground in the tunnel of the Baksan Neutrino Observatory, several kilometers apart from the air shower array.

Kanonidi, K Kh; Lidvansky, A S; Sobisevich, L E

2011-01-01T23:59:59.000Z

386

Electromagnetic Transient-Type Transformer Models for Geomagnetically-Induced Current (GIC) Studies  

Science Conference Proceedings (OSTI)

The simulation of geomagnetically-induced currents (GICs) requires adequate low-frequency transformer models. This report discusses models used for electromagnetic transient (EMT) studies in EMT-type simulation tools. Because transformers may saturate in the presence of GICs, the proper representation of transformer nonlinear behavior is important for understanding the impact of GIC on power system reliability. Other parameters, such as winding losses and core losses, will change the dc current flow ...

2013-11-20T23:59:59.000Z

387

Mitigating Flood Loss through Local Comprehensive Planning in Florida  

E-Print Network (OSTI)

Planning researchers believe that property losses from natural hazards, such as floods can be reduced if governments address this issue and adopt appropriate policies in their plans. However, little empirical research has examined the relationship between plan quality and actual property loss from floods. My research addresses this critical gap in the planning and hazard research literature by evaluating the effectiveness of current plans and policies in mitigating property damage from floods. Specifically, this study: 1) assesses the extent to which local comprehensive plans integrate flood mitigation policies in Florida; and 2) it examines the impact of the quality of flood mitigation policies on actual insured flood damages. Study results show that fifty-three local plans in the sample received a mean score for total flood mitigation policy quality of 38.55, which represents 35.69% of the total possible points. These findings indicate that there is still considerable room for improvement by local governments on flooding issues. The scores of local plans varied widely, with coastal communities receiving significantly higher scores than non-coastal communities. While most communities adopted land use management tools, such as permitted land use and wetland permits as primary flood mitigation tools, incentive based tools/taxing tools and acquisition tools were rarely adopted. This study also finds that plan quality associated with flood mitigation policy had little discernible effect on reducing insured flood damage while controlling for biophysical, built environment and socio-economic variables. This result counters the assumption inherent in previous plan quality research that better plans mitigate the adverse effects associated with floods and other natural hazards. There are some possible explanations for this result in terms of plan implementation, land use management paradox and characteristics of insurance policies. The statistical analysis also suggests that insured flood loss is considerably affected by wetland alteration and a community's location on the coast. Another finding indicates that very strong leadership and dam construction are factors in mitigating flood loss.

Kang, Jung Eun

2009-08-01T23:59:59.000Z

388

The Hybrid Multicellular–Supercellular Storm—an Efficient Hail Producer. Part II. General Characteristics and Implications for Hail Growth  

Science Conference Proceedings (OSTI)

This paper is the second of a two part series describing what are termed hybrid storms because their characteristics are intermediate to classical multicellular and supercellular storms. Storms that possess this structure are worthy of special ...

Stephan P. Nelson

1987-08-01T23:59:59.000Z

389

Pollution Control: Storm Water Management (Maine) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pollution Control: Storm Water Management (Maine) Pollution Control: Storm Water Management (Maine) Pollution Control: Storm Water Management (Maine) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Maine Program Type Siting and Permitting Provider Department of Environmental Protection A person may not construct, or cause to be constructed, a project that

390

Students Storm the Capital: 2013 National Science Bowl | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Students Storm the Capital: 2013 National Science Bowl Students Storm the Capital: 2013 National Science Bowl Students Storm the Capital: 2013 National Science Bowl April 26, 2013 - 4:46pm Addthis Right now, teams of middle and high school students from across the country are prepping for a weekend of academic competition like no other - the National Science Bowl. Run by the Energy Department since 1991, the National Science Bowl features the winners of regional competitions from across the country. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs Right now, teams of middle and high school students from across the country are prepping for a weekend of academic competition like no other - the National Science Bowl. Run by the Energy Department since 1991, the National Science Bowl features the winners of regional competitions from

391

A New Generation Chemical Flooding Simulator  

NLE Websites -- All DOE Office Websites (Extended Search)

NEW GENERATION CHEMICAL FLOODING SIMULATOR NEW GENERATION CHEMICAL FLOODING SIMULATOR Final Report for the Period Sept. 2001 - Aug. 2004 Semi-Annual Report for the Period April1, 2004 - August 30, 2004 by Gary A. Pope, Kamy Sepehrnoori, and Mojdeh Delshad January 2005 Work Performed under Contract No. DE-FC-26-00BC15314 Sue Mehlhoff, Project Manager U.S. Dept of Energy National Petroleum Technology Office One West Third Street, Suite 1400 Tulsa, OK 74103-3159 Prepared by Center for Petroleum and Geosystems Engineering The University of Texas at Austin Austin, TX 78712 ii DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal

392

Magnetic Storm-substorm Relationship and Some Associated Issues  

E-Print Network (OSTI)

The impinging solar wind and its magnetic field perturbed the Earth's magnetosphere and create magnetic storms and substorms. The Earth's magnetosphere expands (contracts) during periods of southward (northward) IMF. It is shown that these magnetospheric expansions and contractions account for poorly understood aspects of magnetic storm-substorm relationship, bifurcation of the magnetotail and the appearance of theta aurora. Quantitative theory and calculations in agreement with the suggested model of solar wind/IMF-magnetosphere coupling are presented. Pre-noon and post-noon dents on the magnetopause are expected to appear during a long period of strong northward IMF.

Savov, E P

2005-01-01T23:59:59.000Z

393

Characteristics and Variability of Storm Tracks in the North Pacific, Bering Sea, and Alaska  

Science Conference Proceedings (OSTI)

The North Pacific and Bering Sea regions represent loci of cyclogenesis and storm track activity. In this paper climatological properties of extratropical storms in the North Pacific/Bering Sea are presented based upon aggregate statistics of ...

Micheld S. Mesquita; David E. Atkinson; Kevin I. Hodges

2010-01-01T23:59:59.000Z

394

Monitoring and Understanding Changes in Extremes: Extratropical Storms, Winds, and Waves  

Science Conference Proceedings (OSTI)

This scientific assessment examines changes in three climate extremes (extratropical storms, winds, and waves), with an emphasis on U.S. coastal regions during the cold season. There is moderate evidence of an increase in both extratropical storm ...

Russell S. Vose; Scott Applequist; Mark A. Bourassa; Sara C. Pryor; Rebecca J. Barthelmie; Brian Blanton; Peter D. Bromirski; Harold E. Brooks; Arthur T. DeGaetano; Randall M. Dole; David R. Easterling; Robert E. Jensen; Thomas R. Karl; Richard W. Katz; Katherine Klink; Michael C. Kruk; Kenneth E. Kunkel; Michael C. MacCracken; Thomas C. Peterson; Karsten Shein; Bridget R. Thomas; John E. Walsh; Xiaolan L. Wang; Michael F. Wehner; Donald J. Wuebbles; Robert S. Young

395

Cyclone Interactions and Evolutions during the “Perfect Storms” of Late October and Early November 1991  

Science Conference Proceedings (OSTI)

This paper examines the cyclogenesis of the “Perfect Storms” of late October and early November 1991 over the North Atlantic and focuses on the influence of Hurricane Grace (HG) toward their development. The two storms considered are the “Perfect ...

Jason M. Cordeira; Lance F. Bosart

2011-06-01T23:59:59.000Z

396

An Objective Method of Evaluating and Devising Storm-Tracking Algorithms  

Science Conference Proceedings (OSTI)

Although storm-tracking algorithms are a key ingredient of nowcasting systems, evaluation of storm-tracking algorithms has been indirect, labor intensive, or nonspecific. A set of easily computable bulk statistics that can be used to directly ...

Valliappa Lakshmanan; Travis Smith

2010-04-01T23:59:59.000Z

397

The Effect of Fetch on the Directional Spectrum of Celtic Sea Storm Waves  

Science Conference Proceedings (OSTI)

This paper describes measurements of the directional spectrum of storm waves obtained using the PISCES high-frequency radar. The storm occurred during the Netherlands UK Radar Wavebuoy Experimental Comparison 2 experiment in March 1987. Wind ...

Lucy R. Wyatt

1995-06-01T23:59:59.000Z

398

The Storm Cell Identification and Tracking Algorithm: An Enhanced WSR-88D Algorithm  

Science Conference Proceedings (OSTI)

Accurate storm identification and tracking are basic and essential parts of radar and severe weather warning operations in today’s operational meteorological community. Improvements over the original WSR-88D storm series algorithm have been made ...

J. T. Johnson; Pamela L. MacKeen; Arthur Witt; E. De Wayne Mitchell; Gregory J. Stumpf; Michael D. Eilts; Kevin W. Thomas

1998-06-01T23:59:59.000Z

399

An Analysis of Cold Season Supercell Storms Using the Synthetic Dual-Doppler Technique  

Science Conference Proceedings (OSTI)

Cold season tornadic outbreaks occur with regularity in the southeastern United States; however, detailed analyses of parent supercell storms in the cold season environment (often low CAPE, high shear) are scarce. This is often because storms do ...

Todd A. Murphy; Kevin R. Knupp

2013-02-01T23:59:59.000Z

400

The Effect of Storm Life Cycle on Satellite Rainfall Estimation Error  

Science Conference Proceedings (OSTI)

The study uses storm tracking information to evaluate error statistics of satellite rain estimation at different maturity stages of storm life cycles. Two satellite rain retrieval products are used for this purpose: (i) NASA’s Multisatellite ...

Alemu Tadesse; Emmanouil N. Anagnostou

2009-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Cloud-to-Ground Lightning in a Tornadic Storm on 8 May 1986  

Science Conference Proceedings (OSTI)

On 8 May 1986, the National Severe Storms Laboratory (NSSL) collected Doppler radar and lightning ground strike data on a supercell storm that produced three tornadoes, including an F3 tornado in Edmond, Oklahoma, approximately 40 km north of ...

Donald R. MacGorman; Kurt E. Nielsen

1991-07-01T23:59:59.000Z

402

The Climatology of Synoptic-Scale Ascent over Western North America: A Perspective on Storm Tracks  

Science Conference Proceedings (OSTI)

The position and variability of storm tracks across western North America are examined during the October–April cool seasons spanning 1989–2010. The location and intensity of storms are represented by strong synoptic-scale ascent, which is ...

Neil P. Lareau; John D. Horel

2012-06-01T23:59:59.000Z

403

The ERICA IOP 5 Storm. Part II: Sensitivity Tests and Further Diagnosis Based on Model Output  

Science Conference Proceedings (OSTI)

This paper continues the study of the ERICA IOP 5 storm begun in a companion paper. The latter documented the storm development, utilizing both conventional and special observations, and presented the results of a successful simulation of the ...

Richard J. Reed; Georg A. Grell; Ying-Hwa Kuo

1993-06-01T23:59:59.000Z

404

Integrated impact analysis of yellow-dust storms : a regional case study in China  

E-Print Network (OSTI)

The dust storm is a meteorological event that is caused by strong winds and proceeds from arid and semi-arid regions, transporting a thick cloud of fine sediments. In China, the sediments of dust storms mainly come from ...

Ai, Ning, 1978-

2003-01-01T23:59:59.000Z

405

Evaluating the Performance of WSR-88D Severe Storm Detection Algorithms  

Science Conference Proceedings (OSTI)

This paper discusses some important issues and problems associated with evaluating the performance of radar-based severe storm detection algorithms. The deficiencies of using Storm Data as a source of verification are examined. Options for ...

Arthur Witt; Michael D. Eilts; Gregory J. Stumpf; E. De Wayne Mitchell; J. T. Johnson; Kevin W. Thomas

1998-06-01T23:59:59.000Z

406

A Remote-Sensing View of a Freezing-Rain Storm  

Science Conference Proceedings (OSTI)

A destructive freezing-rain storm on 15 February 1990 was observed intensively with advanced ground-based remote sensors and conventional instruments by the Lake Ontario Winter Storms (LOWS) project in upstate New York. A deep layer of warm, ...

Brooks E. Martner; Jack B. Snider; Robert J. Zamora; Gregory P. Byrd; Thomas A. Niziol; Paul I. Joe

1993-09-01T23:59:59.000Z

407

Observed and Modeled Wind and Water-Level Response from Tropical Storm Marco (1990)  

Science Conference Proceedings (OSTI)

The Hurricane Research Division (HRD) analyzes surface wind fields in tropical storms and hurricanes using surface wind observations and aircraft flight-level wind measurements in the vicinity of the storms. The analyzed surface wind fields for ...

Sam H. Houston; Mark D. Powell

1994-09-01T23:59:59.000Z

408

Enhanced Polarimetric Radar Signatures above the Melting Level in a Supercell Storm  

Science Conference Proceedings (OSTI)

Compelling in situ and polarimetric radar observations from a severe Oklahoma supercell storm are presented. The in situ observations are from an aircraft that entered the storm above the main inflow region, sampling the embryo curtain, main ...

Matthew L. Loney; Dušan S. Zrni?; Jerry M. Straka; Alexander V. Ryzhkov

2002-12-01T23:59:59.000Z

409

Radar and Other Observations of Two Vaulted Storms in Northeastern Colorado  

Science Conference Proceedings (OSTI)

Detailed radar echo structures and histories of two storms are presented. Both advanced into cloudless skies and had prominent, bounded weak echo regions. The storms had comparable size and intensity, and their environments provided similar ...

Charles A. Knight

1984-01-01T23:59:59.000Z

410

A Triple-Doppler Radar Analysis of a Discretely Propagating Multicell Convective Storm  

Science Conference Proceedings (OSTI)

A triple-Doppler radar case study of a regularly propagating multicell convective storm has been performed. The motion of the storm, observed on 7 June 1978 during Project NIMROD, was somewhat unusual with cell translation and propagation ...

Robert E. Peterson Jr.

1984-10-01T23:59:59.000Z

411

Positive Cloud-to-Ground Lightning in Tornadic Storms and Hailstorms  

Science Conference Proceedings (OSTI)

Although negative ground flashes usually dominate cloud-to-ground lightning activity, positive ground flashes can dominate in some severe storms for periods ranging from 30 min to several hours. Unlike most other types of storms in which positive ...

Donald R. Macgorman; Donald W. Burgess

1994-08-01T23:59:59.000Z

412

Australian Winter Storms Experiment (AWSE) I: Supercooled Liquid Water and Precipitation-Enhancement Opportunities  

Science Conference Proceedings (OSTI)

Some results of the first (1988) Australian Winter Storms Experiment are described. The results shed light on precipitation-enhancement opportunities in winter cyclonic storms interacting with the Great Dividing Range of southeast Australia. The ...

Alexis B. Long; Arlen W. Huggins

1992-09-01T23:59:59.000Z

413

Twentieth-Century Storm Activity along the U.S. East Coast  

Science Conference Proceedings (OSTI)

It has been speculated that future global warming will change the frequency and severity of tropical and extratropical storms. The U.S. east coast is heavily impacted by such storms, so it is important to determine their natural temporal ...

Keqi Zhang; Bruce C. Douglas; Stephen P. Leatherman

2000-05-01T23:59:59.000Z

414

Impacts of Forecaster Involvement on Convective Storm Initiation and Evolution Nowcasting  

Science Conference Proceedings (OSTI)

A forecaster-interactive capability was added to an automated convective storm nowcasting system [Auto-Nowcaster (ANC)] to allow forecasters to enhance the performance of 1-h nowcasts of convective storm initiation and evolution produced every 6 ...

Rita D. Roberts; Amanda R. S. Anderson; Eric Nelson; Barbara G. Brown; James W. Wilson; Matthew Pocernich; Thomas Saxen

2012-10-01T23:59:59.000Z

415

Variability of Updraft and Downdraft Characteristics in a Large Parameter Space Study of Convective Storms  

Science Conference Proceedings (OSTI)

Over 200 convective storm simulations are analyzed to examine the variability in storm vertical velocity and updraft area characteristics as a function of basic environmental parameters. While it is known that bulk properties of the troposphere ...

Cody Kirkpatrick; Eugene W. McCaul Jr.; Charles Cohen

2009-05-01T23:59:59.000Z

416

A Trajectory Approach to Analyzing the Ingredients Associated with Heavy Winter Storms in Central North Carolina  

Science Conference Proceedings (OSTI)

Winter storms, namely snowstorms and ice storms, are a major hazard and forecasting challenge across central North Carolina. This study employed a trajectory approach to analyze the ingredients (i.e., temperature, moisture, and lift) associated ...

Christopher M. Fuhrmann; Charles E. Konrad II

2013-06-01T23:59:59.000Z

417

Easing Into Norman: Ed Kessler on the Origins and Growth of the National Severe Storms Laboratory  

Science Conference Proceedings (OSTI)

The following essay is excerpted from conversations with Edwin Kessler, founding director of NOAA's National Severe Storms Laboratory in Norman, Oklahoma, conducted by Ariel Cohen and Stephen and Sarah Corfidi of the National Weather Service's Storm ...

Edwin Kessler; Ariel E. Cohen; Stephen F. Corfidi; Sarah J. Corfidi

2013-11-01T23:59:59.000Z

418

Statistical Characteristics of Convective Storms in Belgium Derived from Volumetric Weather Radar Observations  

Science Conference Proceedings (OSTI)

High-resolution volumetric reflectivity measurements from a C-band weather radar are used to study the characteristics of convective storms in Belgium. After clutter filtering, the data are processed by the storm-tracking system Thunderstorm ...

Edouard Goudenhoofdt; Laurent Delobbe

2013-04-01T23:59:59.000Z

419

Effects of Vertical Wind Shear and Storm Motion on Tropical Cyclone Rainfall Asymmetries Deduced from TRMM  

Science Conference Proceedings (OSTI)

Vertical wind shear and storm motion are two of the most important factors contributing to rainfall asymmetries in tropical cyclones (TCs). Global TC rainfall structure, in terms of azimuthal distribution and asymmetries relative to storm motion, ...

Shuyi S. Chen; John A. Knaff; Frank D. Marks Jr.

2006-11-01T23:59:59.000Z

420

Observations and Simulations of Upper-Ocean Response to Wind Events during the Ocean Storms Experiment  

Science Conference Proceedings (OSTI)

The Ocean Storms dataset is used to compile observations of the oceanic response to midlatitude storms. Of particular interest are episodic mixed layer temperature cooling events whose characteristics are reviewed. The data include subsurface ...

W. G. Large; G. B. Crawford

1995-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Real-Time Hazard Approximation of Long-Lasting Convective Storms Using Emergency Data  

Science Conference Proceedings (OSTI)

Convective storms cause several types of damage, including economic and ecological losses, every year. This paper focuses on an automatic hazard-level determination of convective storms based on a largely unused information source: real-time ...

Pekka J. Rossi; Vesa Hasu; Kalle Halmevaara; Antti Mäkelä; Jarmo Koistinen; Heikki Pohjola

2013-03-01T23:59:59.000Z

422

The Oklahoma-Kansas. Preliminary Regional Experiment for STORM-Central  

Science Conference Proceedings (OSTI)

During May and June 1985, the Oklahoma-Kansas Preliminary Regional Experiment for STORM-Central (the Oklahoma-KansasPRE-STORM Program) was conducted to investigate the structureand dynamics of mesoscale convective systems (MCSs). As the ...

John B. Cunning

1986-12-01T23:59:59.000Z

423

Changes in Flood Management along the Pajaro River: A Transition to Watershed Management Approaches and Lessons from the Water Framework Directive and Flood Directive  

E-Print Network (OSTI)

2000).  Water Framework Directive.  E.  Parliment, Official 2007).  Flood Risk Directive.  E.  Parliment, Official the Water Framework Directive and Flood Directive Stacie

Jagger, Stacie

2009-01-01T23:59:59.000Z

424

Global-scale observations of changes in ionospheric echo occurrence and convection during periods of increased solar wind activity and increased geomagnetic activity .  

E-Print Network (OSTI)

??This thesis presents an investigation of ionospheric plasma convection and HF radar echoes during periods of enhanced geomagnetic activity. The work was split into two… (more)

Gillies, Deborah

2012-01-01T23:59:59.000Z

425

Current Problems of Magnetic Storm Prediction and Possible Ways of Their Solving  

E-Print Network (OSTI)

Main problems of magnetic storm prediction and causes of low efficiency of medium-term prognosis are discussed. It is supposed, that possible way of their solving is searching for poor-investigated features of solar wind (for instance, solar wind density behavior before storms). The necessity of investigation not only severe storms and coronal mass ejections (CMEs), but origin of moderate and weak storms is shown. Examples of successful investigations in this direction are given.

Khabarova, Olga

2008-01-01T23:59:59.000Z

426

Thermodynamic and Kinematic Structure of a Snowband and Freezing Rain Event during STORM-FEST  

Science Conference Proceedings (OSTI)

A unique wintertime storm occurred on 12 February 1992 during the Stormscale Operational and Research Meteorology-Fronts Experiment Systems Test (STORM-FEST) field project. This storm consisted of a narrow east–west-oriented snow swath (max 20-cm ...

Hunter Coleman; John Marwitz

2002-02-01T23:59:59.000Z

427

Effects of Tides and Storm Surges on North Sea Wind Waves  

Science Conference Proceedings (OSTI)

Effects of tides and storm surges on wind waves in shelf seas are assessed by hindcasting three North Sea storm cases. It is shown that tides and storm surges in shelf seas should be considered as an unsteady medium for wind wave Propagation if ...

Hendrik L. Tolman

1991-06-01T23:59:59.000Z

428

The Temporal Behavior of Numerically Simulated Multicell-Type Storms. Part I. Modes of Behavior  

Science Conference Proceedings (OSTI)

The temporal behavior of mature multicellular model storms, created in an experiment that varied the vertical wind shear layer depth, is examined herein. These storms form new cells at low levels on the storm's forward side, in or near the forced ...

Robert G. Fovell; Peter S. Dailey

1995-06-01T23:59:59.000Z

429

Storm Lake I Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Storm Lake I Wind Farm Storm Lake I Wind Farm Jump to: navigation, search Name Storm Lake I Wind Farm Facility Storm Lake I Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Edison Mission Group Developer GE Energy Energy Purchaser MidAmerican Energy Location Buena Vista and Cherokee Counties IA Coordinates 42.57215°, -95.340693° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.57215,"lon":-95.340693,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

430

Sensitivities of Simulated Convective Storms to Environmental CAPE  

Science Conference Proceedings (OSTI)

A set of 225 idealized three-dimensional cloud-resolving simulations is used to explore convective storm behavior in environments with various values of CAPE (450, 800, 2000, and 3200 J kg?1). The simulations show that when CAPE = 2000 J kg?1 or ...

Cody Kirkpatrick; Eugene W. McCaul Jr.; Charles Cohen

2011-11-01T23:59:59.000Z

431

The Role of Orography in the Dynamics of Storm Tracks  

Science Conference Proceedings (OSTI)

This paper investigates the role of the Northern Hemispheric orography in the maintenance of the winter storm tracks with a dry balance three-layer hemispheric model. First, the zonal winter-mean flow in 1982–83, together with the corresponding ...

Woo-Jin Lee; Mankin Mak

1996-06-01T23:59:59.000Z

432

An observational Study of the “Interstate 5” Dust Storm Case  

Science Conference Proceedings (OSTI)

On 29 November 1991 a series of collisions involving 164 vehicles occurred on Interstate 5 in the San Joaquin Valley in California in a dust storm that reduced the visibility to near zero. The accompanying high surface winds are hypothesized to ...

Patricia M. Pauley; Nancy L. Baker; Edward H. Barker

1996-04-01T23:59:59.000Z

433

Viscous Dissipation of Turbulence Kinetic Energy in Storms  

Science Conference Proceedings (OSTI)

In this note the magnitude of the viscous dissipation of turbulence kinetic energy in the surface layer of storms is investigated. It is shown that the layer-integrated dissipative heating is a cubic function of the wind speed. The magnitude of ...

Steven Businger; Joost A. Businger

2001-12-01T23:59:59.000Z

434

New Perspectives on the Northern Hemisphere Winter Storm Tracks  

Science Conference Proceedings (OSTI)

The aim of this paper is to explore the use of both an Eulerian and system-centered method of storm track diagnosis applied to a wide range of meteorological fields at multiple levels to provide a range of perspectives on the Northern Hemisphere ...

Brian J. Hoskins; Kevin I. Hodges

2002-03-01T23:59:59.000Z

435

The Midwest Snow Storm of 8–11 December 1977  

Science Conference Proceedings (OSTI)

Conventional surface and upper-air aerological data are combined with radar and aircraft measurements to give a description of a major winter storm that deposited over 69 cm of new snow at Muskegon, Michigan, between 8 and 11 December 1977. It is ...

Roscoe R. Braham Jr.

1983-02-01T23:59:59.000Z

436

Forecasting for a Large Field Program: STORM-FEST  

Science Conference Proceedings (OSTI)

Stormscale Operational and Research Meteorology-Fronts Experimental Systems Test (STORM-FEST) was held from 1 February to 15 March 1992 in the central United States as a preliminary field systems test for an eventual larger-scale program. One of ...

Edward J. Szoke; John M. Brown; John A. McGinley; Dennis Rodgers

1994-12-01T23:59:59.000Z

437

High-Frequency Skywave Radar Track of Tropical Storm Debra  

Science Conference Proceedings (OSTI)

Tropical Storm Debra was tracked over a 31 h period in the Gulf of Mexico using the Wide Aperture Research Facility (WARF) high-frequency (HF) skywave radar in California. In contrast to the first WARF skywave radar tracking experiment in which ...

Joseph W. Maresca Jr.; Christopher T. Carlson

1981-04-01T23:59:59.000Z

438

Neutrinos from Stored Muons nuSTORM: Expression of Interest  

E-Print Network (OSTI)

The nuSTORM facility has been designed to deliver beams of electron and muon neutrinos from the decay of a stored muon beam with a central momentum of 3.8 GeV/c and a momentum spread of 10%. The facility is unique in that it will: serve the future long- and short-baseline neutrino-oscillation programmes by providing definitive measurements of electron-neutrino- and muon-neutrino-nucleus cross sections with percent-level precision; allow searches for sterile neutrinos of exquisite sensitivity to be carried out; and constitute the essential first step in the incremental development of muon accelerators as a powerful new technique for particle physics. Of the world's proton-accelerator laboratories, only CERN and FNAL have the infrastructure required to mount nuSTORM. Since no siting decision has yet been taken, the purpose of this Expression of Interest (EoI) is to request the resources required to: investigate in detail how nuSTORM could be implemented at CERN; and develop options for decisive European contributions to the nuSTORM facility and experimental programme wherever the facility is sited. The EoI defines a two-year programme culminating in the delivery of a Technical Design Report.

D. Adey; S. K. Agarwalla; C. M. Ankenbrandt; R. Asfandiyarov; J. J. Back; G. Barker; E. Baussan; R. Bayes; S. Bhadra; V. Blackmore; A. Blondel; S. A. Bogacz; C. Booth; S. B. Boyd; A. Bravar; S. J. Brice; A. D. Bross; F. Cadoux; H. Cease; A. Cervera; J. Cobb; D. Colling; L. Coney; A. Dobbs; J. Dobson; A. Donini; P. J. Dornan; M. Dracos; F. Dufour; R. Edgecock; J. Evans; M. A. George; T. Ghosh; A. deGouvea; J. J. Gomez-Cadenas; A. Haesler; G. Hanson; M. Geelhoed; P. F. Harrison; M. Hartz; P. Hernandez; J. A. Hernando-Morata; P. J. Hodgson; P. Huber; A. Izmaylov; Y. Karadhzov; T. Kobilarcik; J. Kopp; L. Kormos; A. Korzenev; A. Kurup; Y. Kuno; P. Kyberd; J. P. Lagrange; A. M. Laing; J. Link; A. Liu; K. R. Long; N. McCauley; K. T. McDonald; K. Mahn; C. Martin; J. Martin; O. Mena; S. R. Mishra; N. Mokhov; J. Morfin; Y. Mori; W. Murray; D. Neuffer; R. Nichol; E. Noah; M. A. Palmer; S. Parke; S. Pascoli; J. Pasternak; M. Popovic; P. Ratoff; M. Ravonel; M. Rayner; S. Ricciardi; C. Rogers; P. Rubinov; E. Santos; A. Sato; E. Scantamburlo; J. K. Sedgbeer; D. R. Smith; P. J. Smith; J. T. Sobczyk; S. Soldner-Rembold; F. J. P. Soler; M. Sorel; A. Stahl; L. Stanco; P. Stamoulis; S. Striganov; H. Tanaka; I. J. Taylor; C. Touramanis; C. D. Tunnel; Y. Uchida; N. Vassilopoulos; M. O. Wascko; A. Weber; E. Wildner; M. J. Wilking; W. Winter; U. K. Yang

2013-05-07T23:59:59.000Z

439

Echo Size and Asymmetry: Impact on NEXRAD Storm Identification  

Science Conference Proceedings (OSTI)

The effects of echo shape and radar viewing angle on detecting small thunderstorms with the NEXRAD storm identification algorithms are examined. The amorphous low level echo shapes are modeled as ellipses with major axes ranging from 5–15 km and ...

Dennis E. Buechler; Steven J. Goodman

1990-09-01T23:59:59.000Z

440

Knowledge representation in an expert storm forecasting system  

Science Conference Proceedings (OSTI)

METEOR is a rule- and frame-based system for short-term (3-18 hour) severe convective storm forecasting. This task requires a framework that supports inferences about the temporal and spatial features of meteorological changes. Initial predictions are ...

Renee Elio; Johannes De Haan

1985-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

The Antalya 5 December 2002 Storm: Observations and Model Analysis  

Science Conference Proceedings (OSTI)

In the frame of this work, the storm that occurred on 5 December 2002 in Antalya, located on the southwestern Mediterranean Sea coast of Turkey, is analyzed. More than 230 mm of 24-h-accumulated rainfall have been reported during the event that ...

V. Kotroni; K. Lagouvardos; E. Defer; S. Dietrich; F. Porců; C. M. Medaglia; M. Demirtas

2006-04-01T23:59:59.000Z

442

Solar wind triggering of geomagnetic disturbances and strong (M>6.8) earthquakes during the November - December 2004 period  

E-Print Network (OSTI)

This paper brings space weather prediction close to earthquake (EQ) prediction research. The results of this paper support conclusions of previously presented statistical studies that solar activity influences the seismic activity, this influence is mediated through rapid geomagnetic disturbances and the geomagnetic disturbances are related with increases of solar wind speed. Our study concern an example of 40 days with direct response of a series of 7 strong-to-giant (M=6.8-9.3) EQs (including the Andaman-Sumatra EQ) to solar wind speed increases and subsequent geomagnetic fast disturbances. Our analysis for 10 M>6 EQs from November 23 to December 28, 2004 suggests a mean time response delay of EQs to fast geomagnetic disturbances of ~1.5 days. The two giant EQs during this period occurred after the two fastest geomagnetic variations, as revealed by the ratio of the daily Kp index variation over a day {\\Delta}Kp/{\\Delta}t (12 and 15, respectively). It suggests that the fast disturbance of the magnetosphere, ...

Anagnostopoulos, G; Antoniou, P

2010-01-01T23:59:59.000Z

443

DOE specification: Flooded-type lead-acid storage batteries  

DOE Green Energy (OSTI)

This document contains a ``fill-in-the-blanks`` guide specification for procurement of flooded-type lead-acid storage batteries, for uninterruptible power supply applications.

NONE

1996-08-01T23:59:59.000Z

444

Ecology of Sulfur Cycling in Flooded Strip Mines.  

E-Print Network (OSTI)

??Habitat restoration efforts in reclaimed coal mining areas have included the flooding of shallow strip mines, creating patches of wetland with special chemical characteristics, like… (more)

Wham, Breanna Michelle

2013-01-01T23:59:59.000Z

445

Mobile Sounding Observations of a Tornadic Storm near the Dryline: The Canadian, Texas Storm of 7 May 1986  

Science Conference Proceedings (OSTI)

On 7 May 1986 thunderstorms formed during the afternoon near a dryline in the Texas Panhandle under weak synoptic-scale forcing. Five tornadoes and large hail were produced by one storm near Canadian, Texas. The focus of the paper is the analysis ...

Howard B. Bluestein; Eugene W. McCaul Jr.; Gregory P. Byrd; Gary R. Woodall

1988-09-01T23:59:59.000Z

446

Historical record of data on flood control  

DOE Green Energy (OSTI)

Last year (1948) during the flood period the flow at Grand Coulee fluctuated widely. 2 PM, June 8, 543000 c.f.s.; 4 AM, June 9, 568000 c.f s.; 2 PM, June 9, 543000 c.f.s.; 2 AM, June 10, 573000 c.f.s. A total instantaneous fluctuations of 37,500 c.f.s. was reported. Now there is installed a new control. This control can keep downstream variation within 500 c.f.s. By lowering the lake level prior to the crest period, the drum gates could be used as flood control (1948 high water basis) the drum gate control plus the water turbine discharge (if the lake level had been reduced) could have dropped the crest at Richland three feet. a. Drop in crest at Richland one foot: Electrical loss nominal, b. Drop in crest at Richland two feet: Electrical loss 1 megawatt/foot for six generators. Loss Max possible 13,310 KW each generator, 79,860 KW total (7 days). Capacity 1,170,000 KW Max Loss 6.8% for 7 days to 10 days. c. Drop in crest at Richland three feet: Electrical loss 1 megawatt/foot for 6 generators Max possible 30,100 KW each generator 180,600 KW total 8 days. Capacity 1,170,000 KW Maximum loss 15.4% for 8 to 12 days. Actual loss, we believe is much less: For an eleven foot drop actual capacity dropped from 1,170,000 KW to 1,137,000 KW during the present winter. Contacts were re-established with Grand Coulee Control Engineers with whom we had dealt in the 1948 flood. We indicated to Grand Coulee Management, Mr. Bates, Mr. Newberry, etc., that careless control and lack of cooperation between Coulee and Hanford could be harmful and at times disastrous.

Kramer, H.A.

1959-05-19T23:59:59.000Z

447

Flood Forecasting in River System Using ANFIS  

Science Conference Proceedings (OSTI)

The aim of the present study is to investigate applicability of artificial intelligence techniques such as ANFIS (Adaptive Neuro?Fuzzy Inference System) in forecasting flood flow in a river system. The proposed technique combines the learning ability of neural network with the transparent linguistic representation of fuzzy system. The technique is applied to forecast discharge at a downstream station using flow information at various upstream stations. A total of three years data has been selected for the implementation of this model. ANFIS models with various input structures and membership functions are constructed

Nazrin Ullah; P. Choudhury

2010-01-01T23:59:59.000Z

448

Optimum Reservoir Operation for Flood Control and Conservation Purposes  

E-Print Network (OSTI)

Rapid population and economic growth in Texas is accompanied by increased needs for water supply and flood control. Depleting groundwater reserves are resulting in an increased reliance on surface water. The rising cost of fossil fuel during the 1970's has focused attention on increasing hydroelectric power generation. Instream flow needs for fish and wildlife habitat and maintenance of fresh water inflows to bays and estuaries have received increased attention in recent years. The climate of the state is characterized by extremes of floods and droughts. Reservoirs are necessary to control and utilize the highly variable streamflow. Due to a number of economic, environmental, institutional, and political factors, construction of additional new reservoir projects is much more difficult now than in the past. Consequently, optimizing the beneficial use of existing reservoirs is becoming increasingly more important. In addition to ever increasing water related needs, other factors affecting reservoir operation change over time as well. Watershed and flood plain conditions are dynamic. Construction of numerous small flood retarding dams by the Soil Conservation Service and other entities in the watersheds of major reservoirs have reduced flood inflows to the reservoirs. Construction of numerous small ponds for recreation or watering livestock have also decreased reservoir inflows and yields. Increased runoff caused by watershed urbanization is significantly contributing to flooding problems in certain locations. The existing flood control reservoirs were planned and designed based on the expectation of ever increasing intensification of flood plain land use. However, the National Flood Insurance Program has resulted in zoning and regulation of 100-year flood plains. With stringent flood plain management, susceptibility to flooding could actually decrease over time as existing activities choose to leave the flood plain and regulation prevents other activities from moving into the flood plain. Reservoir sedimentation reduces available storage capacity. Construction of additional reservoirs, as well as other related types of projects such as conveyance facilities, flood control levees and channel improvements, and electric power plants, affect the operation of existing reservoirs. Technological advancements in hydrologic data collection, streamflow forecasting, system modeling and analysis, and computer technology provide opportunities for refining operating policies. Reservoir storage capacities and operating policies are generally established prior to construction and tend to remain constant thereafter. However, public needs and objectives and numerous factors affecting reservoir effectiveness significantly change over time. The increasing necessity to use limited storage capacity as effectively as possible warrants periodic reevaluations of operating policies. Operating procedures should be responsive to changing needs and conditions. Reallocation of storage capacity between flood control and conservation purposes represents one general strategy for modifying operating policies in response to changing needs and conditions. Reservoir operation is based upon the conflicting objectives of maximizing the amount of water available for conservation purposes and maximizing the amount of empty space available for storing flood waters. Conservation purposes include municipal, industrial, and agricultural water supply, hydroelectric power, recreation, and instream flow maintenance. Common practice is to operate a reservoir only for conservation purposes or only for flood control or to designate a certain reservoir volume, or pool, for conservation purposes and a separate pool for flood control. The conservation and flood control pools in a multiple purpose reservoir are fixed by a designated top of conservation (bottom of flood control) pool elevation. Planning, design, and operating problems associated with flood control are handled separately from those associated with conservation. Institutional arra

Wurbs, Ralph A.; Cabezas, L. Morris; Tibbets, Michael N.

1985-11-01T23:59:59.000Z

449

GRR/Section 6-CA-b - Construction Storm Water Program | Open Energy  

Open Energy Info (EERE)

6-CA-b - Construction Storm Water Program 6-CA-b - Construction Storm Water Program < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 6-CA-b - Construction Storm Water Program 06CABConstructionStormWaterProgram.pdf Click to View Fullscreen Contact Agencies California State Water Resources Control Board Regulations & Policies 40 CFR 122.2: Definitions Triggers None specified Click "Edit With Form" above to add content 06CABConstructionStormWaterProgram.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative Construction activities requiring a Construction Storm Water General Permit must submit a Storm Water Pollution Prevention Plan and a Construction

450

GRR/Section 6-CO-b - Construction Storm Water Permit | Open Energy  

Open Energy Info (EERE)

6-CO-b - Construction Storm Water Permit 6-CO-b - Construction Storm Water Permit < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 6-CO-b - Construction Storm Water Permit 06COBConstructionStormWaterPermit.pdf Click to View Fullscreen Contact Agencies Colorado Department of Public Health and Environment Regulations & Policies Colorado Water Quality Control Act 5 CCR 1002-61 Triggers None specified Click "Edit With Form" above to add content 06COBConstructionStormWaterPermit.pdf 06COBConstructionStormWaterPermit.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative Projects in Colorado with storm water discharges from construction activities that disturb one or more acres of land may require a Colorado

451

Azimuthal modulation of the event rate of cosmic ray extensive air showers by the geomagnetic field  

E-Print Network (OSTI)

The Earth's magnetic field effect on the azimuthal distribution of extensive air showers (EAS) of cosmic rays has been evaluated using a bulk of the Yakutsk array data. The uniform azimuthal distribution of the EAS event rate is rejected at the significance level 10^(-14). Amplitude of the first harmonics of observed distribution depends on zenith angle as A1=0.2*sin^2(theta) and is almost independent of the primary energy; the phase coincides with the magnetic meridian. Basing upon the value of measured effect, the correction factor has been derived for the particle density depending on a geomagnetic parameter of a shower.

A. A. Ivanov; V. P. Egorova; V. A. Kolosov; A. D. Krasilnikov; M. I. Pravdin; I. Ye. Sleptsov

1999-03-23T23:59:59.000Z

452

Muon Charge Information from Geomagnetic Deviation in Inclined Extensive Air Showers  

E-Print Network (OSTI)

We propose to extract the charge information of high energy muons in very inclined extensive air showers by analyzing their relative lateral positions in the shower transverse plane. We calculate the muon lateral deviation under the geomagnetic field and compare it to dispersive deviations from other causes. By our criterion of resolvability, positive and negative muons with energies above $10^4$ GeV will be clearly separated into two lobes if the shower zenith angle is larger than $70^\\circ$. Thus we suggest a possible approach to measure the $\\mu^+ / \\mu^-$ ratio for high energy muons.

BingKan Xue; Bo-Qiang Ma

2006-11-22T23:59:59.000Z

453

An experimental foundation for electromagnetic shower formation in the geomagnetic field  

E-Print Network (OSTI)

At very high energies the Earth magnetic field, although in many other connections conside red rather weak, acts as a strong field on photons and leptons. This paper discusses the i ntimate connection between this effect and the corresponding `strong field effects' observ ed at accessible accelerator energies in aligned single crystals. As such, these effects c onstitute an experimental verification of the theoretical basis used for simulations of th e development of electromagnetic showers in magnetic fields, in particular the geomagnetic field. A short discussion of more general aspects of the shower development in the fields present at different distance scales is included.

U. I. Uggerhřj

2003-06-09T23:59:59.000Z

454

The Cosmic Electron Background in Low Energy IACTs. Effect of the Geomagnetic Field  

E-Print Network (OSTI)

A new generation of low threshold Imaging Atmospheric Cherenkov Telescopes (IACTs) may reach gamma-ray energies about 10 GeV with high sensitivities and very large collection areas. At these low energies cosmic electrons significantly contribute to the telescope background and are in principle indistinguishable from gamma-rays. In this paper we estimate the electron background expected for two configurations of the low energy IACT MAGIC. We discuss in particular the reduction of the background caused by the geomagnetic field at different locations on the Earth's surface.

J. Cortina; J. C. Gonzalez

2000-10-17T23:59:59.000Z

455

Detection of explosive events by monitoring acoustically-induced geomagnetic perturbations  

Science Conference Proceedings (OSTI)

The Black Thunder Coal Mine (BTCM) near Gillette, Wyoming was used as a test bed to determine the feasibility of detecting explosion-induced geomagnetic disturbances with ground-based induction magnetometers. Two magnetic observatories were fielded at distances of 50 km and 64 km geomagnetically north from the northernmost edge of BTCM. Each observatory consisted of three separate but mutually orthogonal magnetometers, Global Positioning System (GPS) timing, battery and solar power, a data acquisition and storage system, and a three-axis seismometer. Explosions with yields of 1 to 3 kT of TNT equivalent occur approximately every three weeks at BTCM. We hypothesize that explosion-induced acoustic waves propagate upward and interact collisionally with the ionosphere to produce ionospheric electron density (and concomitant current density) perturbations which act as sources for geomagnetic disturbances. These disturbances propagate through an ionospheric Alfven waveguide that we postulate to be leaky (due to the imperfectly conducting lower ionospheric boundary). Consequently, wave energy may be observed on the ground. We observed transient pulses, known as Q-bursts, with pulse widths about 0.5 s and with spectral energy dominated by the Schumann resonances. These resonances appear to be excited in the earth-ionosphere cavity by Alfven solitons that may have been generated by the explosion-induced acoustic waves reaching the ionospheric E and F regions and that subsequently propagate down through the ionosphere to the atmosphere. In addition, we observe late time (> 800 s) ultra low frequency (ULF) geomagnetic perturbations that appear to originate in the upper F region ({approximately}300 km) and appear to be caused by the explosion-induced acoustic wave interacting with that part of the ionosphere. We suggest that explosion-induced Q-bursts may be discriminated from naturally occurring Q-bursts by association of the former with the late time explosion-induced ULF perturbations. We also present evidence for an acoustically-induced magnetic signal at both magnetic observatories, indicating that magnetometers act as highly sensitive detectors of acoustically-induced ground motion. Further experimental and theoretical work are required to improve confidence in these conclusions.

Lewis, J P; Rock, D R; Shaeffer, D L; Warshaw, S I

1999-10-07T23:59:59.000Z

456

A case for variational geomagnetic data assimilation: insights from a one-dimensional, nonlinear, and sparsely observed MHD system  

E-Print Network (OSTI)

Secular variations of the geomagnetic field have been measured with a continuously improving accuracy during the last few hundred years, culminating nowadays with satellite data. It is however well known that the dynamics of the magnetic field is linked to that of the velocity field in the core and any attempt to model secular variations will involve a coupled dynamical system for magnetic field and core velocity. Unfortunately, there is no direct observation of the velocity. Independently of the exact nature of the above-mentioned coupled system -- some version being currently under construction -- the question is debated in this paper whether good knowledge of the magnetic field can be translated into good knowledge of core dynamics. Furthermore, what will be the impact of the most recent and precise geomagnetic data on our knowledge of the geomagnetic field of the past and future? These questions are cast into the language of variational data assimilation, while the dynamical system considered in this pape...

Fournier, Alexandre; Alboussičre, Thierry

2007-01-01T23:59:59.000Z

457

Space–Time Variability of Rainfall and Extreme Flood Response in the Menomonee River Basin, Wisconsin  

Science Conference Proceedings (OSTI)

The hydrometeorological processes that control flash flooding are examined through analyses of space–time rainfall variability and flood response in the Milwaukee metropolitan region. The analyses focus on four flood events in the Menomonee River ...

Yu Zhang; James A. Smith

2003-06-01T23:59:59.000Z

458

Dynamical Structure of Extreme Floods in the U.S. Midwest and the United Kingdom  

Science Conference Proceedings (OSTI)

Twenty extreme spring floods that occurred in the Ohio basin between 1901 and 2008, identified from daily river discharge data, are investigated and compared to the April 2011 Ohio River flood event. Composites of synoptic fields for the flood ...

Jennifer Nakamura; Upmanu Lall; Yochanan Kushnir; Andrew W. Robertson; Richard Seager

2013-04-01T23:59:59.000Z

459

Mixture Distributions and the Hydroclimatology of Extreme Rainfall and Flooding in the Eastern United States  

Science Conference Proceedings (OSTI)

Flooding in the eastern United States reflects a mixture of flood-generating mechanisms, with landfalling tropical cyclones and extratropical systems playing central roles. The authors examine the climatology of heavy rainfall and flood ...

James A. Smith; Gabriele Villarini; Mary Lynn Baeck

2011-04-01T23:59:59.000Z

460

Flood Risk, Uncertainty, and Scientific Information for Decision Making: Lessons from an Interdisciplinary Project  

Science Conference Proceedings (OSTI)

The magnitude of flood damage in the United States, combined with the uncertainty in current estimates of flood risk, suggest that society could benefit from improved scientific information about flood risk. To help address this perceived need, a ...

Rebecca E. Morss; Olga V. Wilhelmi; Mary W. Downton; Eve Gruntfest

2005-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

St-Onge, G., and J.S. Stoner. 2011. Paleomagnetism near the North Magnetic Pole: A unique vantage point for understanding the dynamics of the geomagnetic field and its secular  

E-Print Network (OSTI)

vantage point for understanding the dynamics of the geomagnetic field and its secular variationsOmagNeTiSm Near The NOrTh magNeTiC pOle a unique Vantage point for understanding the Dynamics of the geomagnetic Field and its Secular Variations abSTraCT. Along with the dramatic decrease in global geomagnetic field

462

Counteract SYN flooding using second chance packet filtering  

Science Conference Proceedings (OSTI)

One barrier that hinders wired and wireless LAN, is the security problems caused by ubiquitous attackers. From the 4-layer protocol stack architecture in the Internet, the TCP layer seems to be vulnerable to flooding attacks, like the notorious Distributed ... Keywords: DDoS, SYN flooding, second chance packet filter, security, wireless LAN

Chu-Hsing Lin; Fuu-Cheng Jiang; Wei-Shen Lai; Wei-Yuah Lee; Wei-Cheng Hsu

2009-02-01T23:59:59.000Z

463

Were the 2010 Pakistan floods predictable? P. J. Webster,1  

E-Print Network (OSTI)

Were the 2010 Pakistan floods predictable? P. J. Webster,1 V. E. Toma,1 and H.M. Kim1 Received 30 July 2010, a series of monsoonal deluges over northern Pakistan resulted in catastrophic flooding, loss, especially in North Pakistan was exceptionally rare as deduced from limited data. The location of the deluges

Webster, Peter J.

464

From the Sun to the Earth: The 13 May 2005 Coronal Mass Ejection  

E-Print Network (OSTI)

about the evolution of solar storms and their planetarySolar and interplanetary sources of major geomagnetic storms (Solar and interplanetary The 13 May 2005 Coronal Mass Ejection sources of major geomagnetic storms (

2010-01-01T23:59:59.000Z

465

Microsoft Word - SWPAIceStormDamage_021709.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

2/17/09 2/17/09 Contacts: Beth Nielsen William Hiller Phone: 918-595-6762 918-595-6697 Email: elizabeth.nielsen@swpa.gov william.hiller@swpa.gov 1 of 1 TULSA, OK - Piggott, Arkansas, the last remaining municipality isolated from the electrical grid following a January 26-27, 2009 ice storm in Arkansas and Missouri, was energized by contractors and crews from Southwestern Power Administration (Southwestern), an agency of the U.S. Department of Energy (DOE), on Saturday, February 14, 2009, at approximately 3:00 p.m. With the restoration of electrical power to Piggott, the city will be able to ease its dependency on electrical generators and municipal power generation, both of which have been powering essential services and homes since the onset of the storm.

466

Storm Lake, Iowa: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Storm Lake, Iowa: Energy Resources Storm Lake, Iowa: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 42.645021°, -95.199855° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.645021,"lon":-95.199855,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

467

Storm Lake II Wind Farm | Open Energy Information  

Open Energy Info (EERE)

II Wind Farm II Wind Farm Jump to: navigation, search Name Storm Lake II Wind Farm Facility Storm Lake II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner AES Corp. Developer GE Energy Energy Purchaser Alliant/IES Utilities Location Buena Vista and Cherokee Counties IA Coordinates 42.655334°, -95.383651° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.655334,"lon":-95.383651,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

468

Union soluble oil flood in El Dorado cores  

Science Conference Proceedings (OSTI)

Results are presented of laboratory experiments using Union's soluble oil flood process in El Dorado cores. The core flood is to provide complete information on fluid compositions and phase behavior of the effluents such that adequate core flood match using the chemical flood simulator can be made. This step is essential for evaluating reservoir performance on the South Pattern of the El Dorado Micellar-Polymer Project. The results show the caustic preflush in the flood process causes face plugging of the field cores. The problem was controlled by using chelating agents along with the caustic fluid to keep divalent cations in solution. The required amount of chelating agent was determined to be ca 25 times as strong as the original design for the field test. Liquid chromatography analysis of sulfonate provides valuable information on selective fractionation of monosulfonate in the micellar fluid. 10 references.

Chiou, C.S.

1983-02-01T23:59:59.000Z

469

Experimental investigation of the effect of increasing the temperature on ASP flooding.  

E-Print Network (OSTI)

??Chemical EOR processes such as polymer flooding and surfactant polymer flooding must be designed and implemented in an economically attractive manner to be perceived as… (more)

Walker, Dustin Luke

2012-01-01T23:59:59.000Z

470

Ultra-High Energy Gamma Rays in Geomagnetic Field and Atmosphere  

E-Print Network (OSTI)

The nature and origin of ultra-high energy (UHE: reffering to > 10^19 eV) cosmic rays are great mysteries in modern astrophysics. The current theories for their explanation include the so-called "top-down" decay scenarios whose main signature is a large ratio of UHE gamma rays to protons. Important step in determining the primary composition at ultra-high energies is the study of air shower development. UHE gamma ray induced showers are affected by the Landau-Pomeranchuk-Migdal (LPM) effect and the geomagnetic cascading process. In this work extensive simulations have been carried out to study the characteristics of air showers from UHE gamma rays. At energies above several times 10^19 eV the shower is affected by geomagnetic cascading rather than by the LPM effect. The properties of the longitudinal development such as average depth of the shower maximum or its fluctuations depend strongly on both primary energy and incident direction. This feature may provide a possible evidence of the UHE gamma ray presence by fluorescence detectors.

H. P. Vankov; N. Inoue; K. Shinozaki

2002-11-04T23:59:59.000Z

471

How solvent vapors can improve steam floods  

Science Conference Proceedings (OSTI)

Thermal recovery methods depend for their success on the viscosity reduction of heavy crude oils at high temperatures. The viscosity of a heavy oil can also be reduced if it is diluted with a low-viscosity solvent, such as one of the lighter hydrocarbons. It is not surprising that there has been considerable interest in combining the two methods. The process of injecting vaporized solvent with the steam for a gravity drainage type recovery is described here along with a description of the particular phase behavior of steam/solvent mixtures which is beneficial to the process. And computer simulations which compare steam-only and steam/solvent floods under Athabasca-type conditions are overviewed.

Vogel, J. [Vogel, (Jack), Seabrook, TX (United States)

1996-11-01T23:59:59.000Z

472

Flood Fighting Research Facility | Open Energy Information  

Open Energy Info (EERE)

Fighting Research Facility Fighting Research Facility Jump to: navigation, search Basic Specifications Facility Name Flood Fighting Research Facility Overseeing Organization United States Army Corp of Engineers (ERDC) Hydrodynamic Testing Facility Type Wave Basin Length(m) 45.7 Beam(m) 30.5 Depth(m) 1.2 Water Type Freshwater Cost(per day) Contact POC Towing Capabilities Towing Capabilities None Wavemaking Capabilities Wavemaking Capabilities Yes Maximum Wave Height(m) 0.0 Wave Period Range(s) 0.0 Current Velocity Range(m/s) 0.0 Programmable Wavemaking No Simulated Beach No Channel/Tunnel/Flume Channel/Tunnel/Flume None Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Automated data acquisition and control system Cameras Yes Number of Color Cameras 1

473

Scale-up of miscible flood processes  

SciTech Connect

Results of a wide-ranging investigation of the scaling of the physical mechanisms of miscible floods are reported. Advanced techniques for analysis of crude oils are considered in Chapter 2. Application of supercritical fluid chromatography is demonstrated for characterization of crude oils for equation-of-state calculations of phase equilibrium. Results of measurements of crude oil and phase compositions by gas chromatography and mass spectrometry are also reported. The theory of development of miscibility is considered in detail in Chapter 3. The theory is extended to four components, and sample solutions for a variety of gas injection systems are presented. The analytical theory shows that miscibility can develop even though standard tie-line extension criteria developed for ternary systems are not satisfied. In addition, the theory includes the first analytical solutions for condensing/vaporizing gas drives. In Chapter 4, methods for simulation of viscous fingering are considered. The scaling of the growth of transition zones in linear viscous fingering is considered. In addition, extension of the models developed previously to three dimensions is described, as is the inclusion of effects of equilibrium phase behavior. In Chapter 5, the combined effects of capillary and gravity-driven crossflow are considered. The experimental results presented show that very high recovery can be achieved by gravity segregation when interfacial tensions are moderately low. We argue that such crossflow mechanisms are important in multicontact miscible floods in heterogeneous reservoirs. In addition, results of flow visualization experiments are presented that illustrate the interplay of crossflow driven by gravity with that driven by viscous forces.

Orr, F.M. Jr.

1992-05-01T23:59:59.000Z

474

GRR/Section 6-OR-b - Construction Storm Water Permit | Open Energy  

Open Energy Info (EERE)

b - Construction Storm Water Permit b - Construction Storm Water Permit < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 6-OR-b - Construction Storm Water Permit 06ORBConstructionStormWaterPermit.pdf Click to View Fullscreen Contact Agencies Oregon Department of Environmental Quality Triggers None specified Click "Edit With Form" above to add content 06ORBConstructionStormWaterPermit.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative A project may be eligible for "automatic coverage" under NPDES general permit 1200-CN if storm water does not discharge to a water body with a

475

GRR/Section 6-AK-b - Construction Storm Water Permitting | Open Energy  

Open Energy Info (EERE)

GRR/Section 6-AK-b - Construction Storm Water Permitting GRR/Section 6-AK-b - Construction Storm Water Permitting < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 6-AK-b - Construction Storm Water Permitting 06AKBConstructionStormWaterPermitting (1).pdf Click to View Fullscreen Contact Agencies Alaska Department of Environmental Conservation Regulations & Policies 18 AAC 72: Wastewater Treatment and Disposal Triggers None specified Click "Edit With Form" above to add content 06AKBConstructionStormWaterPermitting (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative From DEC Website: The goal of the Storm Water Program is to reduce or eliminate pollutants in

476

Multiple slug scaling of linear and pattern laboratory chemical floods  

SciTech Connect

Linear floods were conducted in a synthetic water-wet matrix. The multiple slug scaling approach used oil saturation distributions measured by microwave attenuation in one laboratory flood to predict accurately the tertiary residual oil saturation and tertiary oil breakthrough in another laboratory linear flood run with larger slug sizes. Oil saturation distributions at 0.11 V/V/sub p/ intervals during the flood, as well as at S/sub orc/, were also accurately predicted. A laboratory quarter five-spot pattern flood involving sequential injection of a small surfactant slug, a small polymer slug, and continuous drive water was run in a water-wet synthetic matrix. Linear flood oil saturation distributions were scaled to predict the oil saturation distributions in the pattern using a fixed twelve streamtube model for the flow. Details of this scaling procedure are given. Residual tertiary oil saturation, tertiary recovery, and oil saturation changes with time were predicted to within the experimental errors involved in the procedures. The observed tertiary oil breakthrough was later than predicted. Observed oil saturation distributions tended to show more oil left in the corners of the model than predicted by the scaling theory. These secondary effects and the overall behavior of the pattern flood are considered in terms of the chosen streamtube network and the assumptions of stable unit mobility flow. (JMT)

Haskin, H.K.; Davis, L.A.

1982-01-01T23:59:59.000Z

477

Flood Plain and Floodway Management Act (Montana) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Flood Plain and Floodway Management Act (Montana) Flood Plain and Floodway Management Act (Montana) Flood Plain and Floodway Management Act (Montana) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Montana Program Type Siting and Permitting Provider Montana Department of Natural Resources and Conservation

478

Quality assurance flood source and method of making  

DOE Patents (OSTI)

Disclosed is a is an improved flood source, and method of making the same, which emits an evenly distributed flow of energy from a gamma emitting radionuclide dispersed throughout the volume of the flood source. The flood source is formed by filling a bottom pan with a mix of epoxy resin with cobalt-57, preferably at 10 to 20 millicuries and then adding a hardener. The pan is secured to a flat, level surface to prevent the pan from warping and to act as a heat sink for removal of heat from the pan during the curing of the resin-hardener mixture.

Fisher, Darrell R [Richland, WA; Alexander, David L [West Richland, WA; Satz, Stanley [Surfside, FL

2002-12-03T23:59:59.000Z

479

Southern/Northern California Coastal Processes Annotated Bibliography: Coast of California Storm and Tidal Waves Study  

E-Print Network (OSTI)

and Location in the Aleutian Trench on Tsunami Amplitudeearthquakes along the Aleutian Trench on resulting tsunamiCalifornia waves from: Aleutian Island storms, west waves,

US Army Corps of Engineers, Los Angeles District, Planning Division, Coastal Resources Branch

1987-01-01T23:59:59.000Z

480

Generation of Convective Storms over the Escarpment of Northeastern South Africa  

Science Conference Proceedings (OSTI)

The generation of convective storms over the escarpment of the northeastern region of South Africa is examined in terms of synoptic-, meso-, and local forcing.

Michael Garstang; Brian E. Kelbe; George D. Emmitt; Wendy B. London

1987-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "flood geomagnetic storm" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

East Asian Summer monsoon precipitation systems: rainfall characteristics, storm morphologies and convective properties.  

E-Print Network (OSTI)

??This study attempts to characterize the particular convection type, namely storm morphologies, convective properties, and microphysics, of different weather regimes within the East Asian Summer… (more)

Xu, Weixin

2011-01-01T23:59:59.000Z

482

Southern/Northern California Coastal Processes Annotated Bibliography: Coast of California Storm and Tidal Waves Study  

E-Print Network (OSTI)

April l978; tides, offshore winds, high storm waves, andand oceanography; offshore wind and fog climatology; onshoretransport, offshore/onshore transport, wind transport

US Army Corps of Engineers, Los Angeles District, Planning Division, Coastal Resources Branch

1987-01-01T23:59:59.000Z

483

Assessment of GPU computational enhancement to a 2D flood model  

Science Conference Proceedings (OSTI)

This paper presents a study of the computational enhancement of a Graphics Processing Unit (GPU) enabled 2D flood model. The objectives are to demonstrate the significant speedup of a new GPU-enabled full dynamic wave flood model and to present the effect ... Keywords: 2D flood model, CUDA, Flood simulation, GPU programming

Alfred J. Kalyanapu; Siddharth Shankar; Eric R. Pardyjak; David R. Judi; Steven J. Burian

2011-08-01T23:59:59.000Z

484

A fuzzy clustering iterative model using chaotic differential evolution algorithm for evaluating flood disaster  

Science Conference Proceedings (OSTI)

Flood disaster is a kind of frequent natural hazards. The objective of flood disaster evaluation is to establish hazard assessment model for managing flood and preventing disaster. Base on the chaotic optimization theory, this paper proposes a chaotic ... Keywords: Chaotic map, Differential evolution algorithm, Evolutionary computation, Flood disaster evaluation, Fuzzy clustering

Yaoyao He; Jianzhong Zhou; Pangao Kou; Ning Lu; Qiang Zou

2011-08-01T23:59:59.000Z

485

Thermionic phenomena of the Earth's core and its effect on the geomagnetic field  

E-Print Network (OSTI)

In this model, we will show that the high-density quasi-plasma forms at the outer surface of the outer core and accounts for the geomagnetic field. The level of thermo-ionization at the outer surface of Earth's outer core is investigated. The density and the frequency of the plasma formed by the thermion are obtained. The high-density plasma formed by ionization can block the electromagnetic field and prevent it from penetrating the outer core. Thermion has been well researched by physicists. In general, most of metals have large thermionic emissions when their temperatures are above 1500K. The Emission Current Density of iron at this temperature is ~10?ą A/m˛ and rise sharply with temperature increases. The earth's outer core is liquid and consists primarily of iron with temperatures in excess of 4000K. The core mantle boundary temperature might reach 4800K or even higher and the emission current density for iron at this temperature is over 10?A /m˛. Equilibrium between electron emission from the outer core and electron attracted to the outer core is reached when the surface positive charge density is around 10?ł to 10?? C/m˛ at the surface of the outer core. The electrons within the mantle may form high-density plasma around the outer surface of the outer core, diffuse into the mantle and the crust or return to the core. The relative motion between the electrons and cations produces magnetic field. The magnitude of this magnetic field is direct ratio of their relative velocity. If the geomagnetic field is mainly produced by this way, the relative circular velocity between the ions and the electrons should be ~0.1 (rad/s).

Cao, Jiang

2001-01-01T23:59:59.000Z

486

MAXIMUM CORONAL MASS EJECTION SPEED AS AN INDICATOR OF SOLAR AND GEOMAGNETIC ACTIVITIES  

Science Conference Proceedings (OSTI)

We investigate the relationship between the monthly averaged maximal speeds of coronal mass ejections (CMEs), international sunspot number (ISSN), and the geomagnetic Dst and Ap indices covering the 1996-2008 time interval (solar cycle 23). Our new findings are as follows. (1) There is a noteworthy relationship between monthly averaged maximum CME speeds and sunspot numbers, Ap and Dst indices. Various peculiarities in the monthly Dst index are correlated better with the fine structures in the CME speed profile than that in the ISSN data. (2) Unlike the sunspot numbers, the CME speed index does not exhibit a double peak maximum. Instead, the CME speed profile peaks during the declining phase of solar cycle 23. Similar to the Ap index, both CME speed and the Dst indices lag behind the sunspot numbers by several months. (3) The CME number shows a double peak similar to that seen in the sunspot numbers. The CME occurrence rate remained very high even near the minimum of the solar cycle 23, when both the sunspot number and the CME average maximum speed were reaching their minimum values. (4) A well-defined peak of the Ap index between 2002 May and 2004 August was co-temporal with the excess of the mid-latitude coronal holes during solar cycle 23. The above findings suggest that the CME speed index may be a useful indicator of both solar and geomagnetic activities. It may have advantages over the sunspot numbers, because it better reflects the intensity of Earth-directed solar eruptions.

Kilcik, A.; Yurchyshyn, V. B.; Abramenko, V.; Goode, P. R. [Big Bear Solar Observatory, Big Bear City, CA 92314 (United States); Gopalswamy, N. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Ozguc, A. [Kandilli Observatory and Earthquake Research Institute, Bogazici University, 34684 Istanbul (Turkey); Rozelot, J. P. [Nice University, OCA-Fizeau Dpt. Av. Copernic, 06130 Grasse (France)

2011-01-20T23:59:59.000Z

487

Flood Disaster Protection Act of 1973 | Open Energy Information  

Open Energy Info (EERE)

Disaster Protection Act of 1973 Disaster Protection Act of 1973 Jump to: navigation, search Statute Name Flood Disaster Protection Act of 1973 Year 1973 Url [[File:|160px|link=]] Description References FDPA Text[1] The National Flood Insurance Program (NFIP) is administered primarily under two statutes: the National Flood Insurance Act of 1968 and the Flood Disaster Protection Act of 1973 (FDPA). The NFIP is administered by a department of the Federal Emergency Management Agency (FEMA), the Federal Insurance Administration (FIA). The FDPA requires federal financial regulatory agencies to adopt regulations prohibiting their regulated lending institutions from making, increasing, extending or renewing a loan secured by improved real estate or a mobile home located or to be located in a SFHA in a community participating in the NFIP unless the property

488

Climatic Aspects of the 1993 Upper Mississippi River Basin Flood  

Science Conference Proceedings (OSTI)

The 1993 record-breaking summer flood in the Upper Mississippi River Basin resulted from an unprecedentedly persistent heavy rain pattern. Rainfall totals for the Upper Mississippi River Basin were, by a large margin, the largest of this century ...

Kenneth E. Kunkel; Stanley A. Changnon; James R. Angel

1994-05-01T23:59:59.000Z

489

A Statistical Approach to Historical Records of Flood and Drought  

Science Conference Proceedings (OSTI)

Statistical methods of dichotomous variables are suggested in order to analyze the historical climatic records in ancient writings. From historical descriptive records of floods and droughts, we calculate the variability, persistence and ...

C. S. Yao

1982-04-01T23:59:59.000Z

490

Flood survival: Getting a hydro plant back on line  

Science Conference Proceedings (OSTI)

The Remmel Dam and Hydro Plant of Arkansas Power and Light Company was flooded on May 20, 1990. This article describes the teamwork and innovation that went into restoring the powerhouse in a short amount of time.

Weatherford, C.W. (Entergy Services, Inc., Little Rock, AR (United States))

1991-12-01T23:59:59.000Z

491

The Minneapolis Flash Flood: Meteorological Analysis and Operational Response  

Science Conference Proceedings (OSTI)

The evolution of the synoptic- and meso-?-scale meteorological setting for the 23 July 1987 Minneapolis flash flood is described. Analyses of conventional upper-air data, including quasi-geostrophic processes, are employed to identify the large-...

Barry E. Schwartz; Charles F. Chappell; William E. Togstad; Xiao-Ping Zhong

1990-03-01T23:59:59.000Z

492

NOAA Predicts Mixed Bag of Drought, Flooding and Warm Weather...  

NLE Websites -- All DOE Office Websites (Extended Search)

NOAA Predicts Mixed Bag of Drought, Flooding and Warm Weather for Spring Print E-mail NOAA 2013 Spring Outlook Map Thursday, March 21, 2013 Featured by NOAA, a member of the U.S....

493

Chilean glacial lake outburst flood impacts on dam construction  

E-Print Network (OSTI)

Four Glacial Lake Outburst Floods (GLOF) occurred in the Colonia Glacier (Northern Patagonia Icefield, Chile) from April 2008 to March 2009. Lago Cachet 2 emptied four times producing a maximum excess discharge in the ...

Tauro, Flavia

2009-01-01T23:59:59.000Z

494

Atmospheric Rivers and Flooding over the Central United States  

Science Conference Proceedings (OSTI)

This paper undertakes a hydrometeorological analysis of flood events in the central United States. Vertically integrated horizontal water vapor transport over 1979–2011 is calculated in the ECMWF Interim Re-Analysis (ERA-Interim) and used in an ...

David A. Lavers; Gabriele Villarini

2013-10-01T23:59:59.000Z

495

Flooding in Western Washington: The Connection to Atmospheric Rivers  

Science Conference Proceedings (OSTI)

This study utilizes multiple decades of daily streamflow data gathered in four major watersheds in western Washington to determine the meteorological conditions most likely to cause flooding in those watersheds. Two are located in the Olympic ...

Paul J. Neiman; Lawrence J. Schick; F. Martin Ralph; Mimi Hughes; Gary A. Wick

2011-12-01T23:59:59.000Z

496

A Mesoscale Modeling Study of the 1996 Saguenay Flood  

Science Conference Proceedings (OSTI)

A mesoscale simulation of the 19–21 July 1996 Saguenay flood cyclone was performed using the Canadian Mesoscale Compressible Community (MC2) model to study the processes leading to the explosive development and the large amount of precipitation. ...

J. A. Milbrandt; M. K. Yau

2001-06-01T23:59:59.000Z

497

Modernization in the National Weather Service River and Flood Program  

Science Conference Proceedings (OSTI)

Hydrologic forecasting is vital not only to the National Weather Service mission of saying lives and protecting property but also to our nation's water management decision makers. Since its inception, the River and Flood Program has continually ...

D.L. Fread; R.C. Shedd; G.F. Smith; R. Farnsworth; C.N. Hoffeditz; L.A. Wenzel; S.M. Wiele; J.A. Smith; G.N. Day

1995-09-01T23:59:59.000Z

498

Guidelines for Performance of Internal Flooding Probabilistic Risk Assessment  

Science Conference Proceedings (OSTI)

This report provides guidance for the performance of an Internal Flood Probabilistic Risk Assessment (IFPRA). The scope of IFPRA tasks supported by this guidance also includes the treatment of High Energy Line Breaks (HELB) which can produce floods as well as other unique challenges to Systems, Structures, and Components (SSCs) important to the prevention and mitigation of a core damage accident. The guidance includes step-by-step procedures for performing a complete IFPRA, specific examples of approache...

2009-12-18T23:59:59.000Z

499

Polymer flood of the Rapdan pool  

SciTech Connect

A polymer-flood project in the Rapdan field is documented from laboratory design and numerical simulation to production performance and projected economics. The Rapdan field produces 10-mPa{center_dot}s oil from the Upper Shaunavon sand at a reservoir temperature of 55 C. Average permeability is 0.114 {mu}m{sup 2}, average porosity is 18%, and Dykstra-Parsons coefficient is 0.8. The field was discovered in 1953, and waterflood began in 1962. In January 1986, a polymer pilot was initiated in a portion of the field with a PV of 456 {times} 10{sup 4} m{sup 3}. The pilot consists of 13 producers and 5 injectors drilled on 162 {times} 10{sup 3}-m{sup 2} spacing. By December 1994, 43% PV, of a 21-mPa{center_dot}s polymer solution had been injected into a confined, central five spot (Wells 12-12 and 12-12A). The oil cut increased from a stable value of 8% during the waterflood to a peak value of 25%. The corresponding daily oil production increased from 8 to 28 m{sup 3}/d at an oil cut of 36%. Production rate has declined from 140 m{sup 3}/d in 1991 to 106 m{sup 3}/d in December 1994, with a corresponding oil-cut decline from 25% to 20%.

Pitts, M.J.; Surkalo, H.; Wyatt, K. [Surtek Inc., Golden, CO (United States); Campbell, T.A. [Talisman Energy, Calgary, Alberta, CA (United States)

1995-08-01T23:59:59.000Z

500

NedPower Mount Storm Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Wind Farm Wind Farm Jump to: navigation, search Name NedPower Mount Storm Wind Farm Facility NedPower Mount Storm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Shell Wind Energy/Dominion Energy Developer NedPower/Shell Wind Energy/Dominion Energy Energy Purchaser Dominion Energy Location Grant County WV Coordinates 39.251507°, -79.178989° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.251507,"lon":-79.178989,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}