National Library of Energy BETA

Sample records for geophysical techniques exploration

  1. Geophysical technique for mineral exploration and discrimination based on electromagnetic methods and associated systems

    DOE Patents [OSTI]

    Zhdanov; Michael S. (Salt Lake City, UT)

    2008-01-29

    Mineral exploration needs a reliable method to distinguish between uneconomic mineral deposits and economic mineralization. A method and system includes a geophysical technique for subsurface material characterization, mineral exploration and mineral discrimination. The technique introduced in this invention detects induced polarization effects in electromagnetic data and uses remote geophysical observations to determine the parameters of an effective conductivity relaxation model using a composite analytical multi-phase model of the rock formations. The conductivity relaxation model and analytical model can be used to determine parameters related by analytical expressions to the physical characteristics of the microstructure of the rocks and minerals. These parameters are ultimately used for the discrimination of different components in underground formations, and in this way provide an ability to distinguish between uneconomic mineral deposits and zones of economic mineralization using geophysical remote sensing technology.

  2. SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT

    SciTech Connect (OSTI)

    RUCKER DF; MYERS DA

    2011-10-04

    This report documents the evolution of the surface geophysical exploration (SGE) program and highlights some of the most recent successes in imaging conductive targets related to past leaks within and around Hanford's tank farms. While it is noted that the SGE program consists of multiple geophysical techniques designed to (1) locate near surface infrastructure that may interfere with (2) subsurface plume mapping, the report will focus primarily on electrical resistivity acquisition and processing for plume mapping. Due to the interferences from the near surface piping network, tanks, fences, wells, etc., the results of the three-dimensional (3D) reconstruction of electrical resistivity was more representative of metal than the high ionic strength plumes. Since the first deployment, the focus of the SGE program has been to acquire and model the best electrical resistivity data that minimizes the influence of buried metal objects. Toward that goal, two significant advances have occurred: (1) using the infrastructure directly in the acquisition campaign and (2) placement of electrodes beneath the infrastructure. The direct use of infrastructure was successfully demonstrated at T farm by using wells as long electrodes (Rucker et al., 2010, 'Electrical-Resistivity Characterization of an Industrial Site Using Long Electrodes'). While the method was capable of finding targets related to past releases, a loss of vertical resolution was the trade-off. The burying of electrodes below the infrastructure helped to increase the vertical resolution, as long as a sufficient number of electrodes are available for the acquisition campaign.

  3. High Precision Geophysics & Detailed Structural Exploration ...

    Open Energy Info (EERE)

    reservoir and identification of deep up flow targets. These surveys and the drilling process have been designed to severely limit the impact of the exploration. The geophysics...

  4. Leasing and Exploration * Seismic geophysical surveys

    E-Print Network [OSTI]

    #12;Leasing and Exploration * Seismic geophysical surveys * Exploratory drilling using various of these incremental steps; leasing and exploration. Subsequent phases of OCS development (production, transportation) prepared by MMS, as well as pertinent research on the bowhead whale and matters related to oil exploration

  5. Geophysical Techniques | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdistoWhiskeyFootprintGEXAGeminiEnergyHawaii |Methods JumpTechniques Jump

  6. Category:Geophysical Techniques | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,CammackFLIR Jump to: navigation, searchGeophysical Techniques Jump to:

  7. Use of Geophysical Techniques to Characterize Fluid Flow in a Geothermal Reservoir

    Broader source: Energy.gov [DOE]

    Project objectives: Joint inversion of geophysical data for ground water flow imaging; Reduced the cost in geothermal exploration and monitoring; & Combined passive and active geophysical methods.

  8. Innovative Exploration Techniques for Geothermal Assessment at...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration...

  9. GEOPHYSICAL INVERSION IN AN INTEGRATED EXPLORATION PROGRAM: EXAMPLES FROM THE SAN NICOL AS DEPOSIT

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    GEOPHYSICAL INVERSION IN AN INTEGRATED EXPLORATION PROGRAM: EXAMPLES FROM THE SAN NICOL ¬īAS DEPOSIT information to the explorationist. This thesis examines the role geophysical inversion can assume in an integrated explo- ration program, and the impact it can have on the results. As an example, geophysical data

  10. A Conceptual Model Approach to the Geophysical Exploration of...

    Open Energy Info (EERE)

    and the acquisition environment too challenging for seismic reflection to be routinely cost-effective. The geophysical parameter most commonly correlated with the overall...

  11. Geophysical Techniques for Monitoring CO2 Movement During Sequestration

    SciTech Connect (OSTI)

    Erika Gasperikova; G. Michael Hoversten

    2005-11-15

    The relative merits of the seismic, gravity, and electromagnetic (EM) geophysical techniques are examined as monitoring tools for geologic sequestration of carbon dioxide (CO{sub 2}). This work does not represent an exhaustive study, but rather demonstrates the capabilities of a number of geophysical techniques for two synthetic modeling scenarios. The first scenario represents combined CO{sub 2} enhanced oil recovery (EOR) and sequestration in a producing oil field, the Schrader Bluff field on the north slope of Alaska, USA. EOR/sequestration projects in general and Schrader Bluff in particular represent relatively thin injection intervals with multiple fluid components (oil, hydrocarbon gas, brine, and CO{sub 2}). This model represents the most difficult end member of a complex spectrum of possible sequestration scenarios. The time-lapse performance of seismic, gravity, and EM techniques are considered for the Schrader Bluff model. The second scenario is a gas field that in general resembles conditions of Rio Vista reservoir in the Sacramento Basin of California. Surface gravity, and seismic measurements are considered for this model.

  12. Numerical Simulation in Applied Geophysics. From the Mesoscale to ...

    E-Print Network [OSTI]

    Seismic wave propagation is a common technique used in hydrocarbon exploration geophysics, mining and reservoir characterization and production.

  13. Dear Susan, On behalf of the entire Near Surface Geophysics Section (NSGS) of the Society of Exploration

    E-Print Network [OSTI]

    Dear Susan, On behalf of the entire Near Surface Geophysics Section (NSGS) of the Society of Exploration Geophysicists (SEG) and Environmental and Engineering Geophysical Society (EEGS), I would like extraordinary leadership in advancing the cause of near surface geophysics through longterm, tireless

  14. GEOPHYSICS

    E-Print Network [OSTI]

    Volume 51. April 1986. Number 4. GEOPHYSICS. P-SV wave propagation in heterogeneous medla: Velocity-stress ?nite-difference method. Jean Virieux*.

  15. Assessment of various geophysical techniques for Plains Indian archaeological site investigations†

    E-Print Network [OSTI]

    Klaff, Tamir Lee

    1993-01-01

    selected along the banks of Lake Sharpe, South Dakota for surveying. These sites were surveyed using geophysical techniques identified as having the most potential to rapidly locate anomalies characteristic of buried archaeological features, ground...

  16. Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Discover new 260F and 300F geothermal reservoirs in Oregon. To demonstrate the application of high precision geophysics for well targeting. Demonstrate a combined testing approach to Flowing Differential Self Potential (FDSP) and electrical tomography resistivity as a guide to exploration and development. Demonstrate utility and benefits of sump-less drilling for a low environmental impact. Create both short and long term employment through exploration, accelerated development timeline and operation.

  17. Form:ExplorationTechnique | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdistoWhiskeyFootprint Ventures Jump to:45 - WellExplorationTechnique

  18. Estimating the hydraulic conductivity at the South Oyster Site from geophysical tomographic data using Bayesian techniques

    E-Print Network [OSTI]

    Hubbard, Susan

    of ground penetrating radar (GPR) tomographic velocity, GPR tomographic attenuation, and seismic tomographic where prior information is limited. Among the geophysical data, GPR and seismic velocity are more useful in situ hydrological measurements. Conventional borehole techniques such as flowmeter and slug tests

  19. Innovative Exploration Techniques for Geothermal Assessment at...

    Open Energy Info (EERE)

    determine the fracture surface area, heat content and heat transfer, flow rates, and chemistry of the geothermal fluids encountered by the exploration wells. - Write final report...

  20. Neutron Imaging Explored as Complementary Technique for Improving...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Neutron Imaging Explored as Complementary Technique for Improving Cancer Detection August 05, 2013 Researcher Maria Cekanova analyzes the neutron radiographs of a canine breast...

  1. Development of Exploration Methods for Engineered Geothermal...

    Open Energy Info (EERE)

    is proposed using existing geophysical exploration technology coupled with new seismic techniques and subject matter experts to determine the combination of geoscience data...

  2. Three-Dimensional Surface Geophysical Exploration of the 200-Series Tanks at the 241-C Tank Farm

    SciTech Connect (OSTI)

    Crook, N.; McNeill, M.; Dunham, Ralph; Glaser, Danney R.

    2014-02-26

    A surface geophysical exploration (SGE) survey using direct current electrical resistivity was conducted within the C Tank Farm in the vicinity of the 200-Series tanks at the Hanford Site near Richland, Washington. This survey was the second successful SGE survey to utilize the Geotection(TM)-180 Resistivity Monitoring System which facilitated a much larger survey size and faster data acquisition rate. The primary objective of the C Tank Farm SGE survey was to provide geophysical data and subsurface imaging results to support the Phase 2 RCRA Facility Investigation, as outlined in the Phase 2 RCRA Facility Investigation / Corrective Measures work plan RPP-PLAN-39114.

  3. Karst characterization in a semi-arid region using gravity, seismic, and resistivity geophysical techniques.

    SciTech Connect (OSTI)

    Barnhart, Kevin Scott

    2013-10-01

    We proposed to customize emerging in situ geophysical monitoring technology to generate time-series data during sporadic rain events in a semi-arid region. Electrodes were to be connected to wireless %5Cnodes%22 which can be left in the eld for many months. Embedded software would then increase sampling frequency during periods of rainfall. We hypothesized that this contrast between no-volume ow in karst passageways dur- ing dry periods and partial- or saturated-volume ow during a rain event is detectable by these Wireless Sensor Network (WSN) geophysical nodes, we call this a Wireless Resistivity Network (WRN). The development of new methodologies to characterize semi-arid karst hydrology is intended to augment Sandia National Laboratorys mission to lead e orts in energy technologies, waste disposal and climate security by helping to identify safe and secure regions and those that are at risk. Development and initial eld testing identi ed technological barriers to using WRNs for identifying semi-arid karst, exposing R&D which can be targeted in the future. Gravity, seismic, and resis- tivity surveys elucidated how each technique might e ectively be used to characterize semi-arid karst. This research brings to light the importance and challenges with char- acterizing semi-arid karst through a multi-method geophysical study. As there have been very few studies with this emphasis, this study has expanded the body of practical experience needed to protect the nations water and energy security interests.

  4. SURFACE GEOPHYSICAL EXPLORATION DEVELOPING NONINVASIVE TOOLS TO MONITOR PAST LEAKS AROUND HANFORD TANK FARMS

    SciTech Connect (OSTI)

    MYERS DA; RUCKER DF; LEVITT MT; CUBBAGE B; NOONAN GE; MCNEILL M; HENDERSON C

    2011-06-17

    A characterization program has been developed at Hanford to image past leaks in and around the underground storage tank facilities. The program is based on electrical resistivity, a geophysical technique that maps the distribution of electrical properties of the subsurface. The method was shown to be immediately successful in open areas devoid of underground metallic infrastructure, due to the large contrast in material properties between the highly saline waste and the dry sandy host environment. The results in these areas, confirmed by a limited number of boreholes, demonstrate a tendency for the lateral extent of the underground waste plume to remain within the approximate footprint of the disposal facility. In infrastructure-rich areas, such as tank farms, the conventional application of electrical resistivity using small point-source surface electrodes initially presented a challenge for the resistivity method. The method was then adapted to directly use the buried infrastructure as electrodes for both transmission of electrical current and measurements of voltage. For example, steel-cased wells that surround the tanks were used as long electrodes, which helped to avoid much of the infrastructure problems. Overcoming the drawbacks of the long electrode method has been the focus of our work over the past seven years. The drawbacks include low vertical resolution and limited lateral coverage. The lateral coverage issue has been improved by supplementing the long electrodes with surface electrodes in areas devoid of infrastructure. The vertical resolution has been increased by developing borehole electrode arrays that can fit within the small-diameter drive casing of a direct push rig. The evolution of the program has led to some exceptional advances in the application of geophysical methods, including logistical deployment of the technology in hazardous areas, development of parallel processing resistivity inversion algorithms, and adapting the processing tools to accommodate electrodes of all shapes and locations. The program is accompanied by a full set of quality assurance procedures that cover the layout of sensors, measurement strategies, and software enhancements while insuring the integrity of stored data. The data have been shown to be useful in identifying previously unknown contaminant sources and defining the footprint of precipitation recharge barriers to retard the movement of existing contamination.

  5. Estimating the hydraulic conductivity at the South Oyster Site from geophysical tomographic data using Bayesian techniques

    E-Print Network [OSTI]

    Chen, Jinsong

    Estimating the hydraulic conductivity at the South Oyster Site from geophysical tomographic data velocity for hydraulic conductivity estimation at the South Oyster Site, using a Bayesian framework. Since site- specific relations between hydraulic conductivity and geophysical properties are often nonlinear

  6. Exploring Wireless Networking Techniques Using Android Devices Summer & Fall 2010

    E-Print Network [OSTI]

    Lim, Sunho

    Exploring Wireless Networking Techniques Using Android Devices Summer & Fall 2010 National Science wireless networking techniques for Android OS devices as part of the National Science Foundation Research by the open-source Android SDK. Starting with the basics of Android development, I applied basic Java

  7. Numerical Simulation in Applied Geophysics. From the Mesoscale to the

    E-Print Network [OSTI]

    Santos, Juan

    Seismic wave propagation is a common technique used in hydrocarbon exploration geophysics, mining's crust and induce attenuation, dispersion and anisotropy of the seismic waves observed at the macroscale process. Numerical Simulation in Applied Geophysics. From the Mesoscale to the Macroscale ≠ p. #12

  8. Property:ExplorationParentTechnique | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation,Property Edit with formExplorationParentTechnique Jump to:

  9. A Hybrid Hydrologic-Geophysical Inverse Technique for the Assessment and Monitoring of Leachates in the Vadose Zone

    SciTech Connect (OSTI)

    ALUMBAUGH,DAVID L.; YEH,JIM; LABRECQUE,DOUG; GLASS,ROBERT J.; BRAINARD,JAMES; RAUTMAN,CHRIS

    1999-06-15

    The objective of this study is to develop and field test a new, integrated Hybrid Hydrologic-Geophysical Inverse Technique (HHGIT) for characterization of the vadose zone at contaminated sites. This new approach to site characterization and monitoring can provide detailed maps of hydrogeological heterogeneity and the extent of contamination by combining information from 3D electric resistivity tomography (ERT) and/or 2D cross borehole ground penetrating radar (XBGPR) surveys, statistical information about heterogeneity and hydrologic processes, and sparse hydrologic data. Because the electrical conductivity and dielectric constant of the vadose zone (from the ERT and XBGPR measurements, respectively) can be correlated to the fluid saturation and/or contaminant concentration, the hydrologic and geophysical measurements are related.

  10. Recovery Act Validation of Innovative Exploration Techniques Pilgrim Hot Springs, Alaska

    SciTech Connect (OSTI)

    Holdmann, Gwen

    2015-04-30

    Drilling and temperature logging campaigns between the late 1970's and early 1980ís measured temperatures at Pilgrim Hot Springs in excess of 90įC. Between 2010 and 2014 the University of Alaska used a variety of methods including geophysical surveys, remote sensing techniques, heat budget modeling, and additional drilling to better understand the resource and estimate the available geothermal energy.

  11. Geophysical Monitoring of Hydrological and Biogeochemical

    E-Print Network [OSTI]

    Hubbard, Susan

    Geophysical Monitoring of Hydrological and Biogeochemical Transformations Associated with Cr explored the use of geophysical approaches for monitoring the spatiotemporal distribution of hydrological first integrated hydrological wellbore and geophysical tomographic data sets to estimate hydrological

  12. WEST COAST REGIONAL CARBON SEQUESTRATION PARTNERSHIP - REPORT ON GEOPHYSICAL TECHNIQUES FOR MONITORING CO2 MOVEMENT DURING SEQUESTRATION

    SciTech Connect (OSTI)

    Gasperikova, Erika; Gasperikova, Erika; Hoversten, G. Michael

    2005-10-01

    The relative merits of the seismic, gravity, and electromagnetic (EM) geophysical techniques are examined as monitoring tools for geologic sequestration of CO{sub 2}. This work does not represent an exhaustive study, but rather demonstrates the capabilities of a number of geophysical techniques on two synthetic modeling scenarios. The first scenario represents combined CO{sub 2} enhance oil recovery (EOR) and sequestration in a producing oil field, the Schrader Bluff field on the north slope of Alaska, USA. EOR/sequestration projects in general and Schrader Bluff in particular represent relatively thin injection intervals with multiple fluid components (oil, hydrocarbon gas, brine, and CO{sub 2}). This model represents the most difficult end member of a complex spectrum of possible sequestration scenarios. The time-lapse performance of seismic, gravity, and EM techniques are considered for the Schrader Bluff model. The second scenario is a gas field that in general resembles conditions of Rio Vista reservoir in the Sacramento Basin of California. Surface gravity, and seismic measurements are considered for this model.

  13. The Mississippian Leadville Limestone Exploration Play, Utah and Colorado-Exploration Techniques and Studies for Independents

    SciTech Connect (OSTI)

    Thomas Chidsey

    2008-09-30

    The Mississippian (late Kinderhookian to early Meramecian) Leadville Limestone is a shallow, open-marine, carbonate-shelf deposit. The Leadville has produced over 53 million barrels (8.4 million m{sup 3}) of oil/condensate from seven fields in the Paradox fold and fault belt of the Paradox Basin, Utah and Colorado. The environmentally sensitive, 7500-square-mile (19,400 km{sup 2}) area that makes up the fold and fault belt is relatively unexplored. Only independent producers operate and continue to hunt for Leadville oil targets in the region. The overall goal of this study is to assist these independents by (1) developing and demonstrating techniques and exploration methods never tried on the Leadville Limestone, (2) targeting areas for exploration, (3) increasing deliverability from new and old Leadville fields through detailed reservoir characterization, (4) reducing exploration costs and risk especially in environmentally sensitive areas, and (5) adding new oil discoveries and reserves. The final results will hopefully reduce exploration costs and risks, especially in environmentally sensitive areas, and add new oil discoveries and reserves. The study consists of three sections: (1) description of lithofacies and diagenetic history of the Leadville at Lisbon field, San Juan County, Utah, (2) methodology and results of a surface geochemical survey conducted over the Lisbon and Lightning Draw Southeast fields (and areas in between) and identification of oil-prone areas using epifluorescence in well cuttings from regional wells, and (3) determination of regional lithofacies, description of modern and outcrop depositional analogs, and estimation of potential oil migration directions (evaluating the middle Paleozoic hydrodynamic pressure regime and water chemistry). Leadville lithofacies at Libon field include open marine (crinoidal banks or shoals and Waulsortian-type buildups), oolitic and peloid shoals, and middle shelf. Rock units with open-marine and restricted-marine facies constitute a significant reservoir potential, having both effective porosity and permeability when dissolution of skeletal grains, followed by dolomitization, has occurred. Two major types of diagenetic dolomite are observed in the Leadville Limestone at Lisbon field: (1) tight 'early' dolomite consisting of very fine grained (<5 {micro}m), interlocking crystals that faithfully preserve depositional fabrics; and (2) porous, coarser (>100-250 {micro}m), rhombic and saddle crystals that discordantly replace limestone and earlier very fine grained dolomite. Predating or concomitant with late dolomite formation are pervasive leaching episodes that produced vugs and extensive microporosity. Most reservoir rocks within Lisbon field appear to be associated with the second, late type of dolomitization and associated leaching events. Other diagenetic products include pyrobitumen, syntaxial cement, sulfide minerals, anhydrite cement and replacement, and late macrocalcite. Fracturing (solution enlarged) and brecciation (autobrecciation) caused by hydrofracturing are widespread within Lisbon field. Sediment-filled cavities, related to karstification of the exposed Leadville, are present in the upper third of the formation. Pyrobitumen and sulfide minerals appear to coat most crystal faces of the rhombic and saddle dolomites. The fluid inclusion and mineral relationships suggest the following sequence of events: (1) dolomite precipitation, (2) anhydrite deposition, (3) anhydrite dissolution and quartz precipitation, (4) dolomite dissolution and late calcite precipitation, (5) trapping of a mobile oil phase, and (6) formation of bitumen. Fluid inclusions in calcite and dolomite display variable liquid to vapor ratios suggesting reequilibration at elevated temperatures (50 C). Fluid salinities exceed 10 weight percent NaCl equivalent. Low ice melting temperatures of quartz- and calcite-hosted inclusions suggest chemically complex Ca-Mg-bearing brines associated with evaporite deposits were responsible for mineral deposition. The overall conclusion from th

  14. Geothermal Exploration Techniques a Case Study. Final Report | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View New Pages Recent Changes AllGunnery Range,Information Techniques

  15. Between automation and exploration: SAS graphing techniques for visualization of survey data

    E-Print Network [OSTI]

    Yu, Alex

    Between automation and exploration: SAS graphing techniques for visualization of survey data Chong of survey data. There is always a tension between automation and exploration. Automation is a common to automate the graphing processes via SAS/Macros and SAS/Graph. However, hidden patterns of the data may

  16. GEOPHYSICS, VOL. 63, NO. 3 (MAY-JUNE 1998); P. 816825, 10 FIGS. Marine magnetotellurics for petroleum exploration

    E-Print Network [OSTI]

    Key, Kerry

    for petroleum exploration Part I: A sea-floor equipment system Steven C. Constable, Arnold S. Orange, G. Michael for mapping conti- nental shelf structure at depths relevant to petroleum ex- ploration, however, MT to map sedimentary structure as an aid to petroleum exploration for several decades (e.g. Vozoff, 1972

  17. Numerical Simulation in Applied Geophysics. From the Mesoscale to ...

    E-Print Network [OSTI]

    2013-07-05

    hydrocarbon exploration geophysics, mining and reservoir characterization and production. Local variations in the fluid and solid matrix properties, fine layering,.

  18. Joint Master Applied Geophysics

    E-Print Network [OSTI]

    Langendoen, Koen

    , engineering geophysics Year 2, October to February: RWTH Aachen Univer- sity Geothermics, petrophysics, borehole logging Year 2, March to August: Master thesis at one of the three universities or other approved is in geothermal exploration and basin modelling Aachen is situated on the rim of the wooded Eifel and Hautes

  19. DETECTION OF HISTORICAL PIPELINE LEAK PLUMES USING NON-INTRUSIVE SURFACE-BASED GEOPHYSICAL TECHNIQUES AT THE HANFORD NUCLEAR SITE WASHINGTON USA

    SciTech Connect (OSTI)

    SKORSKA MB; FINK JB; RUCKER DF; LEVITT MT

    2010-12-02

    Historical records from the Department of Energy Hanford Nuclear Reservation (in eastern WA) indicate that ruptures in buried waste transfer pipelines were common between the 1940s and 1980s, which resulted in unplanned releases (UPRs) of tank: waste at numerous locations. A number of methods are commercially available for the detection of active or recent leaks, however, there are no methods available for the detection of leaks that occurred many years ago. Over the decades, leaks from the Hanford pipelines were detected by visual observation of fluid on the surface, mass balance calculations (where flow volumes were monitored), and incidental encounters with waste during excavation or drilling. Since these detection methods for historic leaks are so limited in resolution and effectiveness, it is likely that a significant number of pipeline leaks have not been detected. Therefore, a technology was needed to detect the specific location of unknown pipeline leaks so that characterization technologies can be used to identify any risks to groundwater caused by waste released into the vadose zone. A proof-of-concept electromagnetic geophysical survey was conducted at an UPR in order to image a historical leak from a waste transfer pipeline. The survey was designed to test an innovative electromagnetic geophysical technique that could be used to rapidly map the extent of historical leaks from pipelines within the Hanford Site complex. This proof-of-concept test included comprehensive testing and analysis of the transient electromagnetic method (TEM) and made use of supporting and confirmatory geophysical methods including ground penetrating radar, magnetics, and electrical resistivity characterization (ERC). The results for this initial proof-of-concept test were successful and greatly exceeded the expectations of the project team by providing excellent discrimination of soils contaminated with leaked waste despite the interference from an electrically conductive pipe.

  20. Results of Tank-Leak Detection Demonstration Using Geophysical Techniques at the Hanford Mock Tank Site-Fiscal Year 2001

    SciTech Connect (OSTI)

    Barnett, D BRENT.; Gee, Glendon W.; Sweeney, Mark D.

    2002-03-01

    During July and August of 2001, Pacific Northwest National Laboratory (PNNL), hosted researchers from Lawrence Livermore and Lawrence Berkeley National laboratories, and a private contractor, HydroGEOPHYSICS, Inc., for deployment of the following five geophysical leak-detection technologies at the Hanford Site Mock Tank in a Tank Leak Detection Demonstration (TLDD): (1) Electrical Resistivity Tomography (ERT); (2) Cross-Borehole Electromagnetic Induction (CEMI); (3) High-Resolution Resistivity (HRR); (4) Cross-Borehole Radar (XBR); and (5) Cross-Borehole Seismic Tomography (XBS). Under a ''Tri-party Agreement'' with Federal and state regulators, the U.S. Department of Energy will remove wastes from single-shell tanks (SSTs) and other miscellaneous underground tanks for storage in the double-shell tank system. Waste retrieval methods are being considered that use very little, if any, liquid to dislodge, mobilize, and remove the wastes. As additional assurance of protection of the vadose zone beneath the SSTs, tank wastes and tank conditions may be aggressively monitored during retrieval operations by methods that are deployed outside the SSTs in the vadose zone.

  1. Course: Numerical Simulation in Applied Geophysics. From the ...

    E-Print Network [OSTI]

    2013-10-09

    Seismic wave propagation is a common technique used in hydrocarbon explo- ration geophysics, mining and reservoir characterization and production.

  2. ESTIMATING UNCERTAINTIES FOR GEOPHYSICAL

    E-Print Network [OSTI]

    Kreinovich, Vladik

    to directly measure the amount of oil in an area is to drill several wells, but drilling is a very expensive. These techniques are applied to the inversion of traveltime data collected in a cross well seismic experiment procedure, and the whole idea of geophysics is to predict the amount of oil without drilling in all possible

  3. Snake River Geothermal Project- Innovative Approaches to Geothermal Exploration

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Presentation. Project objective: To Implement and Test Geological and Geophysical Techniques for Geothermal Exploration. Project seeks to lower the cost of geothermal energy development by identifying which surface and borehole techniques are most efficient at identifying hidden resources.

  4. Asteroid Surface Geophysics

    E-Print Network [OSTI]

    Murdoch, Naomi; Schwartz, Stephen R; Miyamoto, Hideaki

    2015-01-01

    The regolith-covered surfaces of asteroids preserve records of geophysical processes that have occurred both at their surfaces and sometimes also in their interiors. As a result of the unique micro-gravity environment that these bodies posses, a complex and varied geophysics has given birth to fascinating features that we are just now beginning to understand. The processes that formed such features were first hypothesised through detailed spacecraft observations and have been further studied using theoretical, numerical and experimental methods that often combine several scientific disciplines. These multiple approaches are now merging towards a further understanding of the geophysical states of the surfaces of asteroids. In this chapter we provide a concise summary of what the scientific community has learned so far about the surfaces of these small planetary bodies and the processes that have shaped them. We also discuss the state of the art in terms of experimental techniques and numerical simulations that...

  5. A hybrid hydrologic-geophysical inverse technique for the assessment and monitoring of leachates in the vadose zone. 1998 annual progress report

    SciTech Connect (OSTI)

    Alumbaugh, D.L.; Glass, R.J.; Yeh, T.C.; LaBrecque, D.

    1998-06-01

    'The objective of this study is to develop and field test a new, integrated Hybrid Hydrologic-Geophysical Inverse Technique (HHGIT) for characterization of the vadose zone at contaminated sites. This new approach to site characterization and monitoring can provide detailed maps of hydrogeological heterogeneity and the extent of contamination by combining information from electric resistivity tomography (ERT) surveys, statistical information about heterogeneity and hydrologic processes, and sparse hydrologic data. Because the electrical conductivity of the vadose zone (from the ERT measurements) can be correlated to the fluid saturation and/or contaminant concentration, the hydrologic and geophysical measurements are related. As of the 21st month of a 36-month project, a three-dimensional stochastic hydrologic inverse model for heterogeneous vadose zones has been developed. This model employs pressure and moisture content measurements under both transient and steady flow conditions to estimate unsaturated hydraulic parameters. In this model, an innovative approach to sequentially condition the estimate using temporal measurements has been incorporated. This allows us to use vast amounts of pressure and moisture content information measured at different times while keeping the computational effort manageable. Using this model the authors have found that the relative importance of the pressure and moisture content measurements in defining the different vadose zone parameters depends on whether the soil is wet or dry. They have also learned that pressure and moisture content measurements collected during steady state flow provide the best characterization of heterogeneity compared to other types of hydrologic data. These findings provide important guidance to the design of sampling scheme of the field experiment described below.'

  6. COMBINED GEOPHYSICAL INVESTIGATION TECHNIQUES TO IDENTIFY BURIED WASTE IN AN UNCONTROLLED LANDFILL AT THE PADUCAH GASEOUS DIFFUSION PLANT, KENTUCKY

    SciTech Connect (OSTI)

    Miller, Peter T.; Starmer, R. John

    2003-02-27

    The primary objective of the investigation was to confirm the presence and determine the location of a cache of 30 to 60 buried 55-gallon drums that were allegedly dumped along the course of the pre-existing, northsouth diversion ditch (NSDD) adjacent to permitted landfills at the Paducah Gaseous Diffusion Plant, Kentucky. The ditch had been rerouted and was being filled and re-graded at the time of the alleged dumping. Historic information and interviews with individuals associated with alleged dumping activities indicated that the drums were dumped prior to the addition of other fill materials. In addition, materials alleged to have been dumped in the ditch, such as buried roofing materials, roof flashing, metal pins, tar substances, fly ash, and concrete rubble complicated data interpretation. Some clean fill materials have been placed over the site and graded. This is an environment that is extremely complicated in terms of past waste dumping activities, construction practices and miscellaneous landfill operations. The combination of site knowledge gained from interviews and research of existing site maps, variable frequency EM data, classical total magnetic field data and optimized GPR lead to success where a simpler less focused approach by other investigators using EM-31 and EM-61 electromagnetic methods and unfocused ground penetrating radar (GPR)did not produce results and defined no real anomalies. A variable frequency electromagnetic conductivity unit was used to collect the EM data at 3,030 Hz, 5,070 Hz, 8,430 Hz, and 14,010 Hz. Both in-phase and quadrature components were recorded at each station point. These results provided depth estimates for targets and some information on the subsurface conditions. A standard magnetometer was used to conduct the magnetic survey that showed the locations and extent of buried metal, the approximate volume of ferrous metal present within a particular area, and allowed estimation of approximate target depths. The GPR survey used a 200 megahertz (MHz) antenna to provide the maximum depth penetration and subsurface detail yielding usable signals to a depth of about 6 to 10 feet in this environment and allowed discrimination of objects that were deeper, particularly useful in the southern area of the site where shallow depth metallic debris (primarily roof flashing) complicated interpretation of the EM and magnetic data. Several geophysical anomalies were defined on the contour plots that indicated the presence of buried metal. During the first phase of the project, nine anomalies or anomalous areas were detected. The sizes, shapes, and magnitudes of the anomalies varied considerably, but given the anticipated size of the primary target of the investigation, only the most prominent anomalies were considered as potential caches of 30 to 60 buried drums. After completion of a second phase investigation, only two of the anomalies were of sufficient magnitude, not identifiable with existing known metallic objects such as monitoring wells, and in positions that corresponded to the location of alleged dumping activities and were recommended for further, intrusive investigation. Other important findings, based on the variable frequency EM method and its combination with total field magnetic and GPR data, included the confirmation of the position of the old NSDD, the ability to differentiate between ferrous and non-ferrous anomalies, and the detection of what may be plumes emanating from the landfill cell.

  7. Explorations of Space-Charge Limits in Parallel-Plate Diodes and Associated Techniques for Automation

    E-Print Network [OSTI]

    Ragan-Kelley, Benjamin

    2013-01-01

    and Associated Techniques for Automation by Benjamin Ragan-and Associated Techniques for Automation Copyright 2013 byand Associated Techniques for Automation by Benjamin Ragan-

  8. GEOPHYSICAL APPLICATIONS OF SQUIDS

    E-Print Network [OSTI]

    Goubau, W.M.

    2013-01-01

    W. M. , and Clarke, J. : Geophysics Zimmerman, J. : Second1976). Sims, W. K. :, Geophysics E. , physics~. and Ketchen,Geo- and Clarke, J. : Geophysics Gamble, T. D. , Goubau, W.

  9. Geophysical Prospecting, 2015, 63, 12841310 doi: 10.1111/1365-2478.12278 Field test of sub-basalt hydrocarbon exploration with marine

    E-Print Network [OSTI]

    Constable, Steve

    -basalt hydrocarbon exploration with marine controlled source electromagnetic and magnetotelluric data G. Michael accepted January 2015 ABSTRACT The recent use of marine electromagnetic technology for exploration from 84 marine controlled source electromagnetic and magnetotelluric stations for imaging volcanic

  10. GEOPHYSICAL RESEARCH LETTERS, VOL. 24, NO. 23, PAGES 3097-3100, DECEMBER 1, 1997 Applicability of wavelet algorithm for geophysical

    E-Print Network [OSTI]

    Vasilyev, Oleg V.

    GEOPHYSICAL RESEARCH LETTERS, VOL. 24, NO. 23, PAGES 3097-3100, DECEMBER 1, 1997 Applicability of wavelet algorithm for geophysical viscoelastic flow Oleg V. Vasilyev,1 David A. Yuen,2 and Yuri Yu. Podladchikov3 Abstract. This paper introduces a newly developed wavelet technique for modeling of geophysical

  11. INTRODUCTION APPLIED GEOPHYSICS

    E-Print Network [OSTI]

    Merriam, James

    GEOL 384.3 INTRODUCTION TO APPLIED GEOPHYSICS OUTLINE INTRODUCTION TO APPLIED GEOPHYSICS GEOL 384 unknowns; the ones we don't know we don't know. And if one looks throughout the history of geophysics he didn't really say geophysics. He said, " ... our country and other free countries ...". But I am

  12. Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Presentation. Project Summary: Locate and drill two exploration wells that will be used to define the nature and extent of the geothermal resources on Jemez Pueblo in the Indian Springs area.

  13. Non-Seismic Geophysical Approaches to Monitoring

    SciTech Connect (OSTI)

    Hoversten, G.M.; Gasperikova, Erika

    2004-09-01

    This chapter considers the application of a number of different geophysical techniques for monitoring geologic sequestration of CO2. The relative merits of the seismic, gravity, electromagnetic (EM) and streaming potential (SP) geophysical techniques as monitoring tools are examined. An example of tilt measurements illustrates another potential monitoring technique, although it has not been studied to the extent of other techniques in this chapter. This work does not represent an exhaustive study, but rather demonstrates the capabilities of a number of geophysical techniques on two synthetic modeling scenarios. The first scenario represents combined CO2 enhance oil recovery (EOR) and sequestration in a producing oil field, the Schrader Bluff field on the north slope of Alaska, USA. The second scenario is of a pilot DOE CO2 sequestration experiment scheduled for summer 2004 in the Frio Brine Formation in South Texas, USA. Numerical flow simulations of the CO2 injection process for each case were converted to geophysical models using petrophysical models developed from well log data. These coupled flow simulation geophysical models allow comparrison of the performance of monitoring techniques over time on realistic 3D models by generating simulated responses at different times during the CO2 injection process. These time-lapse measurements are used to produce time-lapse changes in geophysical measurements that can be related to the movement of CO2 within the injection interval.

  14. Geothermal Exploration of Newberry Volcano, Oregon

    SciTech Connect (OSTI)

    Waibel, Albert F.; Frone, Zachary S.; Blackwell, David D.

    2014-12-01

    Davenport Newberry (Davenport) has completed 8 years of exploration for geothermal energy on Newberry Volcano in central Oregon. Two deep exploration test wells were drilled by Davenport on the west flank of the volcano, one intersected a hydrothermal system; the other intersected isolated fractures with no hydrothermal interconnection. Both holes have bottom-hole temperatures near or above 315įC (600įF). Subsequent to deep test drilling an expanded exploration and evaluation program was initiated. These efforts have included reprocessing existing data, executing multiple geological, geophysical, geochemical programs, deep exploration test well drilling and shallow well drilling. The efforts over the last three years have been made possible through a DOE Innovative Exploration Technology (IET) Grant 109, designed to facilitate innovative geothermal exploration techniques. The combined results of the last 8 years have led to a better understanding of the history and complexity of Newberry Volcano and improved the design and interpretation of geophysical exploration techniques with regard to blind geothermal resources in volcanic terrain.

  15. JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES, VOL. 118, 118, doi:10.1002/jgrd.50808, 2013 Exploring the faint young Sun problem and the possible climates

    E-Print Network [OSTI]

    Codron, Francis

    Exploring the faint young Sun problem and the possible climates of the Archean Earth with a 3-D GCM B to solve the "faint young Sun problem," defined by the fact that the Earth was not fully frozen during the Archean despite the fainter Sun. Most previous studies were performed with simple 1-D radiative convective

  16. JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES, VOL. 118, 10,41410,431, doi:10.1002/jgrd.50808, 2013 Exploring the faint young Sun problem and the possible climates

    E-Print Network [OSTI]

    Spiga, Aymeric

    Exploring the faint young Sun problem and the possible climates of the Archean Earth with a 3-D GCM B solutions have been proposed to solve the "faint young Sun problem," defined by the fact that the Earth was not fully frozen during the Archean despite the fainter Sun. Most previous studies were performed

  17. Geophysical InversionFacility

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    UBC Geophysical InversionFacility Modelling and Inversion of EMI data collected over magnetic soils of EMI data acquired at sites with magnetic soils · Geophysical Proveouts · Geonics EM63 Data · First model parameters: · Location · Orientation · Polarizabilities 4 #12;UBC Geophysical Inversion Facility

  18. CUORE and beyond: Bolometric techniques to explore inverted neutrino mass hierarchy

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Artusa, D. R.; Avignone, F. T.; Azzolini, O.; Balata, M.; Banks, T. I.; Bari, G.; Beeman, J.; Bellini, F.; Bersani, A.; Biassoni, M.; et al

    2015-03-24

    The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of 130Te. With 741 kg of TeO2 crystals and an excellent energy resolution of 5 keV (0.2%) at the region of interest, CUORE will be one of the most competitive neutrinoless double beta decay experiments on the horizon. With five years of live time, CUORE projected neutrinoless double beta decay half-life sensitivity is 1.6 ◊ 1026 y at 1? (9.5 ◊ 1025 y at the 90% confidence level), which corresponds to an upper limit on the effective Majorana mass in the range 40Ė100 meVmore†Ľ(50Ė130 meV). Further background rejection with auxiliary light detector can significantly improve the search sensitivity and competitiveness of bolometric detectors to fully explore the inverted neutrino mass hierarchy with 130Te and possibly other double beta decay candidate nuclei.ę†less

  19. CUORE and beyond: Bolometric techniques to explore inverted neutrino mass hierarchy

    SciTech Connect (OSTI)

    Artusa, D. R. [Univ. of South Carolina, Columbia, SC (United States); INFN - LAb Nazionali del Gran Sasso, Assergi (Italy); Avignone, F. T. [Univ. of South Carolina, Columbia, SC (United States); Azzolini, O. [INFN - Laboratori Nazionali di Legnaro, Legnaro (Italy); Balata, M. [INFN - Lab Nazionali del Gran Sasso, Assergi (Italy); Banks, T. I. [INFN - Lab Nazionali del Gran Sasso, Assergi (Italy); Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Bari, G. [INFN - Sezione di Bologna, Bologna (Italy); Beeman, J. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Bellini, F. [Sapienza Univ. di Roma, Roma (Italy); INFN - Sezione di Roma, Roma (Italy); Bersani, A. [INFN - Sezione di Genova, Genova (Italy); Biassoni, M. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Brofferio, C. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Bucci, C. [INFN - Lab Nazionali del Gran Sasso, Assergi (Italy); Cai, X. Z. [Chinese Academy of Sciences (CAS), Shanghai (China); Camacho, A. [INFN - Laboratori Nazionali di Legnaro, Legnaro (Italy); Canonica, L. [INFN - Lab Nazionali del Gran Sasso, Assergi (Italy); Cao, X. G. [Chinese Academy of Sciences (CAS), Shanghai (China); Capelli, S. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Carbone, L. [INFN - Sezione di Milano Bicocca, Milano (Italy); Cardani, L. [Sapienza Univ. di Roma, Roma (Italy); INFN - Sezione di Roma, Roma (Italy); Carrettoni, M. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Casali, N. [INFN - Lab Nazionali del Gran Sasso, Assergi (Italy); Chiesa, D. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Chott, N. [Univ. of South Carolina, Columbia, SC (United States); Clemenza, M. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Copello, S. [Univ. di Genova, Genova (Italy); Cosmelli, C. [Sapienza Univ. di Roma, Roma (Italy); INFN - Sezione di Roma, Roma (Italy); Cremonesi, O. [INFN - Sezione di Milano Bicocca, Milano (Italy); Creswick, R. J. [Univ. of South Carolina, Columbia, SC (United States); Dafinei, I. [INFN - Sezione di Roma, Roma (Italy); Dally, A. [Univ. of Wisconsin, Madison, WI (United States); Datskov, V. [INFN - Sezione di Milano Bicocca, Milano (Italy); De Biasi, A. [INFN - Laboratori Nazionali di Legnaro, Legnaro (Italy); Deninno, M. M. [INFN - Sezione di Bologna, Bologna (Italy); Di Domizio, S. [Univ. di Genova, Genova (Italy); INFN - Sezione di Genova, Genova (Italy); di Vacri, M. L. [INFN - Lab Nazionali del Gran Sasso, Assergi (Italy); Ejzak, L. [Univ. of Wisconsin, Madison, WI (United States); Fang, D. Q. [Chinese Academy of Sciences (CAS), Shanghai (China); Farach, H. A. [Univ. of South Carolina, Columbia, SC (United States); Faverzani, M. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Fernandes, G. [Univ. de Genova, Genova (Italy); INFN - Sezione di Genova, Genova (Italy); Ferri, E. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Ferroni, F. [Sapienza Univ. di Roma, Roma (Italy); INFN - Sezione di Roma, Roma (Italy); Fiorini, E. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Franceschi, M. A. [INFN - Lab. Nazionali di Frascati, Frascati (Italy); Freedman, S. J. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States); INFN- Sezione di Milano Bicocca, Milano (Italy); Fujikawa, B. K. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Giachero, A. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Gironi, L. [Univ. di Milano- Bicocca, Milano (Italy); INFN - Sezione di Milano Bicocca, Milano (Italy); Giuliani, A. [Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, Orsay Campus (France)

    2015-01-01

    The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of Ļ≥?Te. With 741 kg of TeO? crystals and an excellent energy resolution of 5 keV (0.2%) at the region of interest, CUORE will be one of the most competitive neutrinoless double beta decay experiments on the horizon. With five years of live time, CUORE projected neutrinoless double beta decay half-life sensitivity is 1.6 ◊ 10≤? y at 1? (9.5 ◊ 10≤? y at the 90% confidence level), which corresponds to an upper limit on the effective Majorana mass in the range 40Ė100 meV (50Ė130 meV). Further background rejection with auxiliary light detector can significantly improve the search sensitivity and competitiveness of bolometric detectors to fully explore the inverted neutrino mass hierarchy with Ļ≥?Te and possibly other double beta decay candidate nuclei.

  20. Exploring Machine Learning Techniques For Dynamic Modeling on Future Exascale Systems

    SciTech Connect (OSTI)

    Song, Shuaiwen; Tallent, Nathan R.; Vishnu, Abhinav

    2013-09-23

    Future exascale systems must be optimized for both power and performance at scale in order to achieve DOEís goal of a sustained petaflop within 20 Megawatts by 2022 [1]. Massive parallelism of the future systems combined with complex memory hierarchies will form a barrier to efficient application and architecture design. These challenges are exacerbated with emerging complex architectures such as GPGPUs and Intel Xeon Phi as parallelism increases orders of magnitude and system power consumption can easily triple or quadruple. Therefore, we need techniques that can reduce the search space for optimization, isolate power-performance bottlenecks, identify root causes for software/hardware inefficiency, and effectively direct runtime scheduling.

  1. GEOPHYSICS?[The application of physics to problems in the Earth Sciences.

    E-Print Network [OSTI]

    Merriam, James

    W HAT IS GEOPHYSICS?[The application of physics to problems in the Earth Sciences.] In applied geophysics we inject a signal into the ground and record how the ground changes that signal as it passes://duke.usask.ca~merriam/geo_phys/ Rewarding careers are possible in exploration and environmental geophysics. Graduates of the U of S qualify

  2. Test Plan for the Demonstration of Geophysical Techniques for Single-Shell Tank Leak Detection at the Hanford Mock Tank Site: Fiscal Year 2001

    SciTech Connect (OSTI)

    Barnett, D. Brent; Gee, Glendon W.; Sweeney, Mark D.

    2001-07-31

    As part of the Leak Detection, Monitoring and Mitigation (LDMM) program conducted by CH2M HILL 105-A during FY 2001. These tests are being conducted to assess the applicability of these methods (Electrical Resistance Tomography [ERT], High Resolution Resistivity [HRR], Cross-Borehole Seismography [XBS], Cross-Borehole Radar [XBR], and Cross-Borehole Electromagnetic Induction [CEMI]) to the detection and measurement of Single Shell Tank (SST) leaks into the vadose zone during planned sluicing operations. The testing in FY 2001 will result in the selection of up to two methods for further testing in FY 2002. In parallel with the geophysical tests, a Partitioning Interwell Tracer Test (PITT) study will be conducted simultaneously at the Mock Tank to assess the effectiveness of this technology in detecting and quantifying tank leaks in the vadose zone. Preparatory and background work using Cone Penetrometer methods (CPT) will be conducted at the Mock Tank site and an adjacent test area to derive soil properties for groundtruthing purposes for all methods.

  3. Fiber optic geophysical sensors

    DOE Patents [OSTI]

    Homuth, Emil F. (Los Alamos, NM)

    1991-01-01

    A fiber optic geophysical sensor in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects.

  4. Marine Geophysics: A Navy Symposium

    E-Print Network [OSTI]

    Shor, Elizabeth N; Ebrahimi, Carolyn L

    1987-01-01

    electrical polarization. Geophysics 22:660-687. Vacquier,Raitt, R. W. 1964. Geophysics of the South Pacific.Research in Geophysics 2:223-241. Francis, T. J. G. , and R.

  5. GEOLOGY & GEOPHYSICS 2014-2015

    E-Print Network [OSTI]

    Bermķdez, Josť Luis

    GEOLOGY & GEOPHYSICS 2014-2015 Graduate Student Handbook - 1 ∑ Geology & Geophysics Core Values - 2 ∑ A Message from the Graduate Advisor - 3 ∑ Department Organizations - 60 ∑ Departmental Executive Committee - 61 ∑ Geology& Geophysics Development Advisory Council

  6. Expedited Site Characterization Geophysics: Geophysical Methods and Tools for Site Characterization

    E-Print Network [OSTI]

    Goldstein, N.E.

    2009-01-01

    Site Characterization Geophysics CONTENTS INTRODUCTIONSite Characterization Geophysics SELF-POTENTIAL Referencesand Environmental Geophysics, S. H. Ward, ed. (Soc. Expl.

  7. Dr. Benjamin R. Phillips Benjamin Phillips is a Program Director in Geophysics at the National Science

    E-Print Network [OSTI]

    Gilbes, Fernando

    Dr. Benjamin R. Phillips Benjamin Phillips is a Program Director in Geophysics at the National for Geophysics at the University of Texas at Austin developing earthquake location techniques in support. Associate Program Director, Geophysics National Science Foundation 4201 Wilson Boulevard Arlington, VA 22230

  8. Geophysical Exploration Technologies | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainable UrbanKentucky: EnergyGateway1997) | OpenRaft riverArea, Canon

  9. Transition study plans for current G&G students OPTION 1: Majors -Geology, Geophysics and Spatial Information Major

    E-Print Network [OSTI]

    Transition study plans for current G&G students OPTION 1: Majors - Geology, Geophysics and Spatial Approved Level II Remote Sensing III Geology Summer Sch GIS for Environmental Management III Geophysics Semester 1 Tectonics III Igneous & Metamorphic Geology III Geophysics III Exploration Methods III Semester

  10. Geophysical Research Abstracts, Vol. 9, 06422, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-06422

    E-Print Network [OSTI]

    Br√ľckl, Ewald

    Geophysical Research Abstracts, Vol. 9, 06422, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-06422 ¬© European Geosciences Union 2007 Deep Alpine Valleys - examples of geophysical explorations in Austria E. Br√ľckl (1), J. Br√ľckl (2), W. Chwatal (1), Ch. Ullrich (1,3) (1) Institute of Geodesy and Geophysics

  11. GEOPHYSICS, VOL. 67, NO. 5 (SEPTEMBER-OCTOBER 2002); P. 15321541, 5 FIGS. 10.1190/1.1512749

    E-Print Network [OSTI]

    Utah, University of

    GEOPHYSICS, VOL. 67, NO. 5 (SEPTEMBER-OCTOBER 2002); P. 1532≠1541, 5 FIGS. 10.1190/1.1512749 3-D inhomogeneous geological structures is a challenging problem in exploration geophysics. Despite significant of Geology and Geophysics, Salt Lake City, Utah 84112. E-mail: oleg@cs.utah.edu; mzhdanov@mines.utah.edu. c

  12. Advanced signal processing in geophysical remote sensing

    SciTech Connect (OSTI)

    Witten, A.J.; King, W.C.

    1993-06-01

    This paper describes advanced signal processing methods which have improved the capabilities to detect and image the subsurface environment with geophysical remote sensing techniques. Field results are presented showing target detection, subsurface characterizations, and imaging of insitu waste treatment processes, all previously unachievable with such tools as ground penetrating radar, magnetometry and seismic.

  13. Advanced signal processing in geophysical remote sensing

    SciTech Connect (OSTI)

    Witten, A.J. ); King, W.C. . Dept. of Geography and Environmental Engineering)

    1993-01-01

    This paper describes advanced signal processing methods which have improved the capabilities to detect and image the subsurface environment with geophysical remote sensing techniques. Field results are presented showing target detection, subsurface characterizations, and imaging of insitu waste treatment processes, all previously unachievable with such tools as ground penetrating radar, magnetometry and seismic.

  14. Fiber optic geophysical sensors

    DOE Patents [OSTI]

    Homuth, E.F.

    1991-03-19

    A fiber optic geophysical sensor is described in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects. 2 figures.

  15. Blind Geothermal System Exploration in Active Volcanic Environments...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Multi-phase Geophysical and Geochemical Surveys in Overt & Subtle Volcanic Systems, Hawaii & Maui Blind Geothermal System Exploration in Active Volcanic Environments;...

  16. A Coordinated Exploration Program for Geothermal Sources on the...

    Open Energy Info (EERE)

    of Geophysics; p. 993-1001 Related Geothermal Exploration Activities Activities (8) Direct-Current Resistivity Survey At Kilauea East Rift Geothermal Area (FURUMOTO, 1976)...

  17. Advances in borehole geophysics for hydrology

    SciTech Connect (OSTI)

    Nelson, P.H.

    1982-01-01

    Borehole geophysical methods provide vital subsurface information on rock properties, fluid movement, and the condition of engineered borehole structures. Within the first category, salient advances include the continuing improvement of the borehole televiewer, refinement of the electrical conductivity dipmeter for fracture characterization, and the development of a gigahertz-frequency electromagnetic propagation tool for water saturation measurements. The exploration of the rock mass between boreholes remains a challenging problem with high potential; promising methods are now incorporating high-density spatial sampling and sophisticated data processing. Flow-rate measurement methods appear adequate for all but low-flow situations. At low rates the tagging method seems the most attractive. The current exploitation of neutron-activation techniques for tagging means that the wellbore fluid itself is tagged, thereby eliminating the mixing of an alien fluid into the wellbore. Another method uses the acoustic noise generated by flow through constrictions and in and behind casing to detect and locate flaws in the production system. With the advent of field-recorded digital data, the interpretation of logs from sedimentary sequences is now reaching a sophisticated level with the aid of computer processing and the application of statistical methods. Lagging behind are interpretive schemes for the low-porosity, fracture-controlled igneous and metamorphic rocks encountered in the geothermal reservoirs and in potential waste-storage sites. Progress is being made on the general problem of fracture detection by use of electrical and acoustical techniques, but the reliable definition of permeability continues to be an elusive goal.

  18. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: May 11 (Geophysics) On Original Copies Dr. Terence K. Young Professor and Head Department of Geophysics Approved

  19. Modeling and Evaluation of Geophysical Methods for Monitoring and Tracking CO2 Migration

    SciTech Connect (OSTI)

    Daniels, Jeff

    2012-11-30

    Geological sequestration has been proposed as a viable option for mitigating the vast amount of CO{sub 2} being released into the atmosphere daily. Test sites for CO{sub 2} injection have been appearing across the world to ascertain the feasibility of capturing and sequestering carbon dioxide. A major concern with full scale implementation is monitoring and verifying the permanence of injected CO{sub 2}. Geophysical methods, an exploration industry standard, are non-invasive imaging techniques that can be implemented to address that concern. Geophysical methods, seismic and electromagnetic, play a crucial role in monitoring the subsurface pre- and post-injection. Seismic techniques have been the most popular but electromagnetic methods are gaining interest. The primary goal of this project was to develop a new geophysical tool, a software program called GphyzCO2, to investigate the implementation of geophysical monitoring for detecting injected CO{sub 2} at test sites. The GphyzCO2 software consists of interconnected programs that encompass well logging, seismic, and electromagnetic methods. The software enables users to design and execute 3D surface-to-surface (conventional surface seismic) and borehole-to-borehole (cross-hole seismic and electromagnetic methods) numerical modeling surveys. The generalized flow of the program begins with building a complex 3D subsurface geological model, assigning properties to the models that mimic a potential CO{sub 2} injection site, numerically forward model a geophysical survey, and analyze the results. A test site located in Warren County, Ohio was selected as the test site for the full implementation of GphyzCO2. Specific interest was placed on a potential reservoir target, the Mount Simon Sandstone, and cap rock, the Eau Claire Formation. Analysis of the test site included well log data, physical property measurements (porosity), core sample resistivity measurements, calculating electrical permittivity values, seismic data collection, and seismic interpretation. The data was input into GphyzCO2 to demonstrate a full implementation of the software capabilities. Part of the implementation investigated the limits of using geophysical methods to monitor CO{sub 2} injection sites. The results show that cross-hole EM numerical surveys are limited to under 100 meter borehole separation. Those results were utilized in executing numerical EM surveys that contain hypothetical CO{sub 2} injections. The outcome of the forward modeling shows that EM methods can detect the presence of CO{sub 2}.

  20. Physics and Astronomy Geophysics Concentration

    E-Print Network [OSTI]

    Thaxton, Christopher S.

    Physics and Astronomy Geophysics Concentration Strongly recommended courses Credits Term Dept. to Geophysics 3 PHY 3230 Thermal Physics 3 CHE 1101 Introductory Chemistry - I 3 CHE 1110 Introductory Chemistry

  1. 2, 637671, 2005 Geophysics and

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    BGD 2, 637≠671, 2005 Geophysics and geochemistry of seafloor brines S. B. Joye et al. Title Page Discussions is the access reviewed discussion forum of Biogeosciences Geophysical and geochemical signatures under a Creative Commons License. 637 #12;BGD 2, 637≠671, 2005 Geophysics and geochemistry of seafloor

  2. GEOPHYSICS, VOL. 54, NO. 9 (SEPTEMBER 1989): P. 1153-I 163, 14 FIGS.. 4 TABLES. Stability of wide-angle absorbing boundary conditions

    E-Print Network [OSTI]

    Renaut, Rosemary

    GEOPHYSICS, VOL. 54, NO. 9 (SEPTEMBER 1989): P. 1153-I 163, 14 FIGS.. 4 TABLES. Stability of wide and numerically. Our numerical results confirm that INTRODUCTION Many geophysical problems, including modeling-1804. *Bergen Scientific Centre, IBM, N5006 Bergen, Norway. 0 1989 Society of Exploration Geophysic

  3. Hyperspectral Mineral Mapping In Support Of Geothermal Exploration...

    Open Energy Info (EERE)

    unknown resources has been aided by the advent of higher spatial resolution airborne geophysics (e.g. aeromagnetics), development of new seismic processing techniques, and the...

  4. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: May 10 (Geophysics). Golden, Colorado Date May 15, 2006 Signed: on original copy Jeongmin Lee Signed: on original

  5. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: September fulfillment of the requirements for the degree of Master of Science (Geophysics). Golden, Colorado Date

  6. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics;#12;Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics of the requirements for the degree of Master of Science (Geophysics). Golden, Colorado Date: April 14, 2005 Signed

  7. Understanding biogeobatteries: Where geophysics meets microbiology

    E-Print Network [OSTI]

    Revil, A.

    2010-01-01

    duckling of environmental geophysics, Leading Edge, 21(5),Pure and Applied Geophysics, 157, 357-382. Pinder, G.F. ,sulfide self-potentials, Geophysics, 25, 226Ė249. Sauck, W.

  8. DEPARTMENT OF GEOLOGY & GEOPHYSICS UNDERGRADUATE

    E-Print Network [OSTI]

    DEPARTMENT OF GEOLOGY & GEOPHYSICS UNDERGRADUATE SURVIVAL MANUAL 2014-2015 SCHOOL OF OCEAN & EARTH SCIENCE & TECHNOLOGY UNIVERSITY OF HAWAI`I AT MNOA Updated January 2015 #12;INTRODUCTION 1 Geology OF GEOLOGY & GEOPHYSICS _ 2 Who We Are _ 2 Where To Get Help _ 2 POLICIES, PROCEDURES & REQUIREMENTS 3

  9. March 16, 2010March 16, 2010 Introduction to Seismic ExplorationIntroduction to Seismic Exploration

    E-Print Network [OSTI]

    Ito, Garrett

    3/15/2010 1 GG450GG450 March 16, 2010March 16, 2010 Introduction to Seismic ExplorationIntroduction to Seismic Exploration andand Elementary Digital AnalysisElementary Digital Analysis Some of the material IIntroduction AsAs more than 90% of geophysicalmore than 90% of geophysical exploration utilizes seismic methods

  10. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics Colorado School of Mines CGEM Alisa Marie Green #12;Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: November 06, 2003 Advisor: Dr. Yaoguo Li

  11. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics Colorado School of Mines CGEM Dongjie Cheng #12;#12;Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: December 2003 Advisor: Dr. Yaoguo Li (GP

  12. Geophysical imaging methods for analysis of the Krafla Geothermal Field, NE Iceland

    E-Print Network [OSTI]

    Parker, Beatrice Smith

    2012-01-01

    Joint geophysical imaging techniques have the potential to be reliable methods for characterizing geothermal sites and reservoirs while reducing drilling and production risks. In this study, we applied a finite difference ...

  13. wavelet domain inversion and joint deconvolution/interpolation of geophysical data

    E-Print Network [OSTI]

    Kane, Jonathan A. (Jonathan Andrew), 1973-

    2003-01-01

    This thesis presents two innovations to geophysical inversion. The first provides a framework and an algorithm for combining linear deconvolution methods with geostatistical interpolation techniques. This allows for sparsely ...

  14. Geophysical Research Abstracts Vol. 12, EGU2010-PREVIEW, 2010

    E-Print Network [OSTI]

    Boyer, Edmond

    (s) 2010 Overview of seismic imagery techniques applied to landslides characterization. Gilles Grandjean, geophysical methods based on seismic surveying appear to be well-adapted to investigate the morpho and non-intrusive measurements of acoustic (Vp) or shear (Vs) wave velocity, two important physical

  15. APPLICATION OF BOREHOLE GEOPHYSICS AT AN EXPERIMENTAL WASTE STORAGE SITE

    E-Print Network [OSTI]

    Nelson, P.H.

    2014-01-01

    letal Ore Deposits, 11 in Geophysics and Geochemistry in the11 Applications of Borehole Geophysics to Water-ResourcesAPPLICATION OF BOREHOLE GEOPHYSICS AT AN EXPERIMENTAL WASTE

  16. Lunar geophysics: The Moon's fundamental shape and paleomagnetism studies

    E-Print Network [OSTI]

    Perera, Viranga

    2014-01-01

    Tectonics. † Reviews †of †Geophysics †and †Space † Physics †SANTA CRUZ Lunar geophysics: The Moonís fundamental shapeViranga Perera Lunar geophysics: The Moonís fundamental

  17. Geophysical methods for fracture characterization in and around potential sites for nuclear waste disposal

    SciTech Connect (OSTI)

    Majer, E.L.; Lee, K.H. ); Morrison, H.F. )

    1992-08-01

    Historically, geophysical methods have been used extensively to successfully explore the subsurface for petroleum, gas, mineral, and geothermal resources. Their application, however, for site characterization, and monitoring the performance of near surface waste sites or repositories has been somewhat limited. Presented here is an overview of the geophysical methods that could contribute to defining the subsurface heterogeneity and extrapolating point measurements at the surface and in boreholes to volumetric descriptions in a fractured rock. In addition to site characterization a significant application of geophysical methods may be in performance assessment and in monitoring the repository to determine if the performance is as expected.

  18. 1/3 TELLURIC AND D.C. RESISTIVITY TECHNIQUES APPLIED TO THE GEOPHYSICAL INVESTIGATION OF BASIN AND RANGE GEOTHERMAL SYSTEMS, PART I: THE E-FIELD RATIO TELLURIC METHOD

    E-Print Network [OSTI]

    Beyer, J.H.

    2010-01-01

    exploration of geothermal systems in north central Nevada (of Basin and Range geothermal systems, Part I I: A numericalBasin and Range geothermal systems, Part III: The analysis

  19. Geophysical data fusion for subsurface imaging. Phase 1

    SciTech Connect (OSTI)

    Hoekstra, P.; Vandergraft, J.; Blohm, M.; Porter, D.

    1993-08-01

    A geophysical data fusion methodology is under development to combine data from complementary geophysical sensors and incorporate geophysical understanding to obtain three dimensional images of the subsurface. The research reported here is the first phase of a three phase project. The project focuses on the characterization of thin clay lenses (aquitards) in a highly stratified sand and clay coastal geology to depths of up to 300 feet. The sensor suite used in this work includes time-domain electromagnetic induction (TDEM) and near surface seismic techniques. During this first phase of the project, enhancements to the acquisition and processing of TDEM data were studied, by use of simulated data, to assess improvements for the detection of thin clay layers. Secondly, studies were made of the use of compressional wave and shear wave seismic reflection data by using state-of-the-art high frequency vibrator technology. Finally, a newly developed processing technique, called ``data fusion,`` was implemented to process the geophysical data, and to incorporate a mathematical model of the subsurface strata. Examples are given of the results when applied to real seismic data collected at Hanford, WA, and for simulated data based on the geology of the Savannah River Site.

  20. INSTITUTE OF GEOPHYSICS AND PLANETARY PHYSICS (IGPP)

    E-Print Network [OSTI]

    INSTITUTE OF GEOPHYSICS AND PLANETARY PHYSICS (IGPP) LOS ALAMOS NATIONAL LABORATORY (LANL) FY11, 2010 1. INTRODUCTION The Institute of Geophysics and Planetary Physics (IGPP) at Los Alamos National of California's Systemwide Institute of Geophysics and Planetary Physics. Its science mission is to promote

  1. 2010 Western Pacific Geophysics Search Results

    E-Print Network [OSTI]

    Ng, Chung-Sang

    2010 Western Pacific Geophysics Meeting Search Results Cite abstracts as Author(s) (2010), Title: Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, United States AU: Ragunathan, S EM: srivatta@gi.alaska.edu AF: Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, United

  2. Geophysical Institute. Biennial report, 1993-1994

    SciTech Connect (OSTI)

    1996-01-01

    The 1993-1994 Geophysical Institute Biennial Report was published in November 1995 by the Geophysical Institute of the University of Alaska Fairbanks. It contains an overview of the Geophysical Institute, the Director`s Note, and research presentations concerning the following subjects: Scientific Predictions, Space Physics, Atmospheric Sciences, Snow, Ice and Permafrost, Tectonics and Sedimentation, Seismology, Volcanology, Remote Sensing, and other projects.

  3. Geophysical modeling of two willemite deposits, Vazante (Brazil) and Beltana (Australia) Richard A. Krahenbuhl* and Murray Hitzman

    E-Print Network [OSTI]

    by conventional processing techniques and geophysical inversion. Vazante deposit in Brazil The Vazante willemite. The mineralized portion of the fault zone extends more than 5 kilometers along strike and is known from drilling

  4. Hydrogeological-Geophysical Methods for Subsurface Site Characterization - Final Report

    SciTech Connect (OSTI)

    Rubin, Yoram

    2001-01-01

    The goal of this research project is to increase water savings and show better ecological control of natural vegetation by developing hydrogeological-geophysical methods for characterizing the permeability and content of water in soil. The ground penetrating radar (GPR) tool was developed and used as the surface geophysical method for monitoring water content. Initial results using the tool suggest that surface GPR is a viable technique for obtaining precision volumetric water content profile estimates, and that laboratory-derived petrophysical relationships could be applied to field-scale GPR data. A field-scale bacterial transport study was conducted within an uncontaminated sandy Pleistocene aquifer to evaluate the importance of heterogeneity in controlling the transport of bacteria. Geochemical, hydrological, geological, and geophysical data were collected to characterize the site prior to and after chemical and bacterial injection experiments. Study results shows that, even within the fairly uniform shallow marine deposits of the narrow channel focus area, heterogeneity existed that influenced the chemical tracer transport over lateral distances of a few meters and vertical distances of less than a half meter. The interpretation of data suggest that the incorporation of geophysical data with limited hydrological data may provide valuable information about the stratigraphy, log conductivity values, and the spatial correlation structure of log conductivity, which have traditionally been obtainable only by performing extensive and intrusive hydrological sampling.

  5. 2012 Fellow American Geophysical Union

    E-Print Network [OSTI]

    Kurapov, Alexander

    ) are critical to the intensity of ocean currents, to long- and short-term climate variations, and the health2012 Fellow American Geophysical Union James Moum, professor in the College of Earth, Ocean contributions to our understanding of ocean mixing in coastal, abyssal and Equatorial regimes using innovative

  6. Geophysical subsurface imaging and interface identification.

    SciTech Connect (OSTI)

    Pendley, Kevin; Bochev, Pavel Blagoveston; Day, David Minot; Robinson, Allen Conrad; Weiss, Chester Joseph

    2005-09-01

    Electromagnetic induction is a classic geophysical exploration method designed for subsurface characterization--in particular, sensing the presence of geologic heterogeneities and fluids such as groundwater and hydrocarbons. Several approaches to the computational problems associated with predicting and interpreting electromagnetic phenomena in and around the earth are addressed herein. Publications resulting from the project include [31]. To obtain accurate and physically meaningful numerical simulations of natural phenomena, computational algorithms should operate in discrete settings that reflect the structure of governing mathematical models. In section 2, the extension of algebraic multigrid methods for the time domain eddy current equations to the frequency domain problem is discussed. Software was developed and is available in Trilinos ML package. In section 3 we consider finite element approximations of De Rham's complex. We describe how to develop a family of finite element spaces that forms an exact sequence on hexahedral grids. The ensuing family of non-affine finite elements is called a van Welij complex, after the work [37] of van Welij who first proposed a general method for developing tangentially and normally continuous vector fields on hexahedral elements. The use of this complex is illustrated for the eddy current equations and a conservation law problem. Software was developed and is available in the Ptenos finite element package. The more popular methods of geophysical inversion seek solutions to an unconstrained optimization problem by imposing stabilizing constraints in the form of smoothing operators on some enormous set of model parameters (i.e. ''over-parametrize and regularize''). In contrast we investigate an alternative approach whereby sharp jumps in material properties are preserved in the solution by choosing as model parameters a modest set of variables which describe an interface between adjacent regions in physical space. While still over-parametrized, this choice of model space contains far fewer parameters than before, thus easing the computational burden, in some cases, of the optimization problem. And most importantly, the associated finite element discretization is aligned with the abrupt changes in material properties associated with lithologic boundaries as well as the interface between buried cultural artifacts and the surrounding Earth. In section 4, algorithms and tools are described that associate a smooth interface surface to a given triangulation. In particular, the tools support surface refinement and coarsening. Section 5 describes some preliminary results on the application of interface identification methods to some model problems in geophysical inversion. Due to time constraints, the results described here use the GNU Triangulated Surface Library for the manipulation of surface meshes and the TetGen software library for the generation of tetrahedral meshes.

  7. Exploring the geophysical signatures of microbial processes in the earth

    E-Print Network [OSTI]

    Slater, L.

    2009-01-01

    Arctic Natural Sciences, Antarctic Earth Sciences, Antarcticof Microbial Processes in the Earth Lee Slater 1 , Estellaa rapidly evolving Earth science discipline that integrates

  8. Geological and geophysical analysis of Coso Geothermal Exploration...

    Open Energy Info (EERE)

    logs were employed to characcterize the drillhole geology. The natural gamma and neutron porosity logs indicate gross rock type and the accoustic logs indicate fractured rock...

  9. Integrated Geophysical Exploration of a Known Geothermal Resource...

    Open Energy Info (EERE)

    the means for heated water to migrate to the surface. Electrical and magnetic surveys offer methods to locate hydrothermal waters near the surface by identifying areas affected...

  10. High Precision Geophysics & Detailed Structural Exploration & Slim Well

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy Resources Jump to:Hershey, Pennsylvania:Hidden

  11. MCA 82-1-1 Geophysical Exploration | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona:Oregon:Lowell Point,Massachusetts:Kansas:M1Remains2 -1975 |Zones

  12. NMSLO Application for Permit to Conduct Geophysical Exploration on Unleased

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland: EnergyInformationOliver,Minnesota:EnergyNARI|Forms12State Lands | Open

  13. Integrated Geophysical Exploration of a Known Geothermal Resource: Neal Hot

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimenMaking

  14. A Conceptual Model Approach to the Geophysical Exploration of Permeable

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton JumpProgram | OpenEnergy Information Of The

  15. Geological and geophysical analysis of Coso Geothermal Exploration Hole No.

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdistoWhiskeyFootprintGEXAGeminiEnergyHawaii | Open EnergyStudy ofNevada1

  16. Exploring the geophysical signatures of microbial processes in the earth

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article) |production at a linear collider (Conference)

  17. Exploring the geophysical signatures of microbial processes in the earth

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article) |production at a linear collider (Conference)(Journal Article) |

  18. Expedited Site Characterization Geophysics: Geophysical Methods and Tools for Site Characterization

    E-Print Network [OSTI]

    Goldstein, N.E.

    2009-01-01

    EXPEDITED ITE S CHARACTERIZATION EOPHYSICS G GEOPHYSICALM AND TOOLSFORSITE CHARACTERIZATION NORMAN E. GOLDSTEINExpedited Site Characterization Geophysics CONTENTS

  19. Geophysical data fusion for subsurface imaging. Final report

    SciTech Connect (OSTI)

    NONE

    1995-10-01

    This report contains the results of a three year, three-phase project whose long-range goal has been to create a means for the more detailed and accurate definition of the near-surface (0--300 ft) geology beneath a site that had been subjected to environmental pollution. The two major areas of research and development have been: improved geophysical field data acquisition techniques; and analytical tools for providing the total integration (fusion) of all site data. The long-range goal of this project has been to mathematically, integrate the geophysical data that could be derived from multiple sensors with site geologic information and any other type of available site data, to provide a detailed characterization of thin clay layers and geological discontinuities at hazardous waste sites.

  20. DEPARTMENT OF GEOLOGY AND GEOPHYSICS UNDERGRADUATE SCHOLARSHIP APPLICATION

    E-Print Network [OSTI]

    Johnson, Cari

    DEPARTMENT OF GEOLOGY AND GEOPHYSICS UNDERGRADUATE SCHOLARSHIP APPLICATION Environment Geophysics Other: GeoEng Earth Science Teaching Anticipated & Geophysics 115 S. 1460 E. Room 383, Salt Lake City, UT 84112-0102 Phone 801

  1. Howard A. Zebker Professor of Geophysics and Electrical Engineering

    E-Print Network [OSTI]

    Zebker, Howard

    Howard A. Zebker Professor of Geophysics and Electrical Engineering Stanford University, Stanford, Departments of Geophysics and Electrical Engineering (joint appt.), Stanford University, Stanford, CA. 1995-2006 Associate Professor, Departments of Geophysics and Electrical Engineering (joint appt.), Stanford University

  2. Towards Real Earth Models --Computational Geophysics on Unstructured Tetrahedral Meshes?

    E-Print Network [OSTI]

    Farquharson, Colin G.

    Towards Real Earth Models -- Computational Geophysics on Unstructured Tetrahedral Meshes? Colin tetrahedral meshes. EM geophysics on unstructured tetrahedral meshes. Disadvantages, difficulties, challenges. Conclusions. #12;Outline: Geological models! Advantages of unstructured tetrahedral meshes. EM geophysics

  3. SAGE, Summer of Applied Geophysical Experience

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    enhance a student's knowledge by going beyond a standard classroom-based geophysics curriculum, and to encourage qualified students in related fields to consider careers in...

  4. Institute of Geophysics, Planetary Physics and Signatures

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    IGPPS Institute of Geophysics, Planetary Physics and Signatures High quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience and...

  5. On the Quantum Aspects of Geophysics

    E-Print Network [OSTI]

    F. Darabi

    2004-10-10

    We introduce a simple quantum mechanical justification for the formation of folded mountains. It is very appealing to develop this idea to a theory of {\\it Quantum Geophysics}

  6. Regional geophysics, Cenozoic tectonics and geologic resources...

    Open Energy Info (EERE)

    adjoining regions Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Regional geophysics, Cenozoic tectonics and geologic resources of the...

  7. Lattice-Boltzmann Method for Geophysical Plastic Flows

    E-Print Network [OSTI]

    Leonardi, Alessandro; Mendoza, Miller; Herrmann, Hans J

    2015-01-01

    We explore possible applications of the Lattice-Boltzmann Method for the simulation of geophysical flows. This fluid solver, while successful in other fields, is still rarely used for geotechnical applications. We show how the standard method can be modified to represent free-surface realization of mudflows, debris flows, and in general any plastic flow, through the implementation of a Bingham constitutive model. The chapter is completed by an example of a full-scale simulation of a plastic fluid flowing down an inclined channel and depositing on a flat surface. An application is given, where the fluid interacts with a vertical obstacle in the channel.

  8. Advanced 3D Geophysical Imaging Technologies for Geothermal Resource...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D...

  9. Borehole geophysics evaluation of the Raft River geothermal reservoir...

    Open Energy Info (EERE)

    Borehole geophysics evaluation of the Raft River geothermal reservoir, Idaho Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Borehole geophysics...

  10. UNIVERSITY OF HAWAII AT MANOA DEPARTMENT OF GEOLOGY AND GEOPHYSICS

    E-Print Network [OSTI]

    UNIVERSITY OF HAWAII AT MANOA DEPARTMENT OF GEOLOGY AND GEOPHYSICS Graduate Admissions 1680 East * Geophysics & Tectonics; Marine & Environmental Geology; Planetary Geosciences; Volcanology, Geochemistry

  11. A resolution analysis of two geophysical imaging methods for characterizing and monitoring hydrologic conditions in the Vadose zone.

    SciTech Connect (OSTI)

    Brainard, James Robert; Hammond, Gary.; Alumbaugh, David L.; La Brecque, D.J.

    2007-06-01

    This research project analyzed the resolution of two geophysical imaging techniques, electrical resistivity tomography (ERT) and cross-borehole ground penetrating radar (XBGPR), for monitoring subsurface flow and transport processes within the vadose zone. The study was based on petrophysical conversion of moisture contents and solute distributions obtained from unsaturated flow forward modeling. This modeling incorporated boundary conditions from a potable water and a salt tracer infiltration experiment performed at the Sandia-Tech Vadose Zone (STVZ) facility, and high-resolution spatial grids (6.25-cm spacing over a 1700-m domain) and incorporated hydraulic properties measured on samples collected from the STVZ. The analysis process involved petrophysical conversion of moisture content and solute concentration fields to geophysical property fields, forward geophysical modeling using the geophysical property fields to obtain synthetic geophysical data, and finally, inversion of this synthetic data. These geophysical property models were then compared to those derived from the conversion of the hydrologic forward modeling to provide an understanding of the resolution and limitations of the geophysical techniques.

  12. Cusiana trend exploration, Llanos Foothills thrustbelt, Colombia: The opening of a new hydrocarbon province

    SciTech Connect (OSTI)

    O'Leary, J.; Hayward, T.; Addison, F. (BP Exploration, Bogota (Colombia)); Espinosa, G. (Ecopetrol, Bogota (Colombia))

    1996-01-01

    The Llanos Foothills petroleum trend of the Eastern Cordillera in Colombia containing the giant Cusiana Field has proven to be one of the most exciting hydrocarbon provinces discovered in recent years. The Llanos Foothills trend is a fold and thrust belt with cumulative discovered reserves to date of nearly 6 billion barrels of oil equivalent. This paper summarizes the critical exploration techniques used in unlocking the potential of this major petroleum system. The first phase of exploration in the Llanos Foothills lasted from the early 1960's to the mid-70's. Several large structures defined by surface geology and seismic data were drilled. Although no major discoveries were made, evidence of a petroleum play was found. The seismic imaging and drilling technology combined with the geological understanding which was then available did not allow the full potential of the trend to be realized. In the late 1980's better data and a revised geological perception of the trend led BP, Triton and Total into active exploration, which resulted in the discovery of the Cusiana Field. The subsequent discovery of the Cupiagua, Volcanera, Florena and Pauto Sur Fields confirmed the trend as a major hydrocarbon province. The exploration programme has used a series of geological and geophysical practices and techniques which have allowed the successful exploitation of the trend. The critical success factor has been the correct application of technology in seismic acquisition and recessing and drilling techniques.

  13. Status of data, major results, and plans for geophysical activities, Yucca Mountain Project

    SciTech Connect (OSTI)

    Oliver, H.W. [Geological Survey, Menlo Park, CA (USA); Hardin, E.L. [Science Applications International Corp., Las Vegas, NV (USA); Nelson, P.H. [Geological Survey, Denver, CO (USA)] [eds.

    1990-07-01

    This report describes past and planned geophysical activities associated with the Yucca Mountain Project and is intended to serve as a starting point for integration of geophysical activities. This report relates past results to site characterization plans, as presented in the Yucca Mountain Site Characterization Plan (SCP). This report discusses seismic exploration, potential field methods, geoelectrical methods, teleseismic data collection and velocity structural modeling, and remote sensing. This report discusses surface-based, airborne, borehole, surface-to-borehole, crosshole, and Exploratory Shaft Facility-related activities. The data described in this paper, and the publications discussed, have been selected based on several considerations; location with respect to Yucca Mountain, whether the success or failure of geophysical data is important to future activities, elucidation of features of interest, and judgment as to the likelihood that the method will produce information that is important for site characterization. 65 refs., 19 figs., 12 tabs.

  14. Electrical Impedance Tomography in geophysics, application of EIDORS

    E-Print Network [OSTI]

    Adler, Andy

    Electrical Impedance Tomography in geophysics, application of EIDORS Lesparre N., Adler A., Gibert to adapt EIDORS for applications in geophysics. In geophysics, we apply EIT in order to image inner. The spatial resolution of the method in geophysics is of the order of meters and the penetration depth can

  15. Bachelor of Science, Geophysics, 2013-2014 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Bachelor of Science, Geophysics, 2013-2014 Name ID# Date General Degree Requirements Residency with Lab 4 COMPSCI 115 Introduction to C 2 GEOPH 201 Seeing the Unseen: an Introduction to Geophysics 4 GEOPH 300 Physics of the Earth 3 GEOPH 305 Applied Geophysics 3 GEOPH 420 Geophysical Applications

  16. Archaeological investigation of the Court Kiva in Chaco Canyon using geophysical methods Cericia Martinez*

    E-Print Network [OSTI]

    -invasive, geophysical techniques. Due to the non-invasive nature of magnetic, electrical and electromagnetic data as park approval is granted. The data and interpretation from a component of this project is the focus and subsequently backfilled for preservation purposes. There is very little record of the Court Kiva's excavation

  17. PhD in Cryosphere Geophysics The Cryosphere Geophysics and Remote Sensing group (CryoGARs) at Boise

    E-Print Network [OSTI]

    Barrash, Warren

    PhD in Cryosphere Geophysics The Cryosphere Geophysics and Remote Sensing group (CryoGARs) at Boise on the GrIS. A solid background in field geophysics is preferred. The successful applicant will join the CryoGars group and Center for Geophysical Investigation of the Shallow Subsurface (CGISS) at Boise

  18. Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Students (2014-15 academic year)

    E-Print Network [OSTI]

    Johnson, Cari

    Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Students (2014-15 academic year): General Academic Advising for Geology & Geophysics Majors ­ Ms. Judy.dinter@utah.edu, office: 321 FASB, phone 801-581-7937) Faculty Advisor for Geophysics Emphasis, Geoscience Major ­ Prof

  19. GEOPHYSICS

    E-Print Network [OSTI]

    19 800 sismi ues dans les milieux strati?ťs a deux et trois dimensions: contri ution a la construction et a lime relation des sismo- grammes synthetiques: These

  20. Geophysics

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Low LET Ionizing RadiationSNACGeographyGeometry

  1. Imaging using transport models for wave-wave correlations

    E-Print Network [OSTI]

    Biasutti, Michela

    exploration in geophysics [16] and non-destructive testing of materials [26]. One standard imaging technique

  2. Interim progress report addendun - environmental geophysics: Building E5032 decommissioning, Aberdeen Proving Ground, January 1994 resurvey

    SciTech Connect (OSTI)

    Thompson, M.D.; McGinnis, L.D.; Benson, M.A.; Borden, H.M.; Padar, C.A.

    1994-12-01

    Geophysical surveying around Building E5032 using three new continuously recording geophysical instruments - two types of electromagnetic induction instruments and a cesium vapor magnetometer that were unavailable at the time of the original survey - has provided additional information for defining the location of buried debris, vaults, tanks, and the drainage/sump system near the building. The dominant geophysical signature around Building E5032 consists of a complex pattern of linear magnetic, electrical-conductivity, and electromagnetic field anomalies that appear to be associated with drainage/sewer systems, ditches, past railway activity, the location for Building T5033 (old number 99A), and the probable location of Building 91. Integrated analysis of data acquired using the three techniques, plus a review of the existing ground-penetrating-radar data, allow a more thorough definition of the sources for the observed anomalies.

  3. Department of Geology & Geophysics University of Hawaii

    E-Print Network [OSTI]

    Department of Geology & Geophysics University of Hawaii THE APPLICATION CHECKLIST SEND THESE ITEMS TO : University of Hawaii Graduate Division Admissions Office 2540 Maile Way, Spalding Hall 354 Honolulu, HI 96822 Original application and fees. http://www.hawaii

  4. Assessing Soil Strength From Geophysical Surveys†

    E-Print Network [OSTI]

    Khan, Rehan

    2014-04-24

    A study is presented to develop framework for correlating sand strength (friction angle) to geophysical measurements, primarily shear wave and body wave velocities. Triaxial tests accompanied by wave velocity measurements was performed to generate a...

  5. Wave radiation in simple geophysical models†

    E-Print Network [OSTI]

    Murray, Stuart William

    2013-07-01

    Wave radiation is an important process in many geophysical flows. In particular, it is by wave radiation that flows may adjust to a state for which the dynamics is slow. Such a state is described as ďbalancedĒ, meaning ...

  6. Engineering and environmental geophysics at the millennium

    E-Print Network [OSTI]

    Steeples, Don W.

    2001-01-01

    Near?surface geophysics is being applied to a broader spectrum of problems than ever before, and new application areas are arising continually. Currently, the tools used to examine the near?surface environment include a variety of noninvasive...

  7. Alum Innovative Exploration

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Reduce the high level of risk during the early stages of geothermal project development by conducting a multi-faceted and innovative exploration and drilling program at Alum. Determine the combination of techniques that are most useful and cost-effective in identifying the geothermal resource through a detailed, post-project evaluation of the exploration and drilling program.

  8. Proposal for a Planetary Geology and Geophysics Initiative on Lunar Drilling Shaopeng Huang, Dept. Geol. Sciences., University of Michigan, Ann Arbor, MI 48109-1005

    E-Print Network [OSTI]

    Huang, Shaopeng

    Proposal for a Planetary Geology and Geophysics Initiative on Lunar Drilling Shaopeng Huang, Dept and technology. As the Moon is the cornerstone for deep space exploration, lunar drilling will become technologies for lunar drilling is lagging behind deep space exploration strategy and planning. Compelling

  9. UNIVERSITY OF HAWAII AT MANOA DEPARTMENT OF GEOLOGY AND GEOPHYSICS

    E-Print Network [OSTI]

    UNIVERSITY OF HAWAII AT MANOA DEPARTMENT OF GEOLOGY AND GEOPHYSICS Graduate Admissions 1680 East's admissibility into the Graduate Program in Geology and Geophysics at the University of Hawaii at Manoa. Strongly

  10. Property:ExplorationTechnique | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,Energy LLCALLETE Inc d b aEnvironmentalAnalysisType Jump

  11. Template:ExplorationTechnique | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJ Automation Jump to:Information 8)Cassia

  12. Category:Exploration Techniques | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla, Georgia: Energy014771¬į,NorthCLEANElkins, WV

  13. MULTIFRACTALS, GENERALIZED SCALE INVARIANCE AND COMPLEXITY IN GEOPHYSICS

    E-Print Network [OSTI]

    Lovejoy, Shaun

    MULTIFRACTALS, GENERALIZED SCALE INVARIANCE AND COMPLEXITY IN GEOPHYSICS DANIEL SCHERTZER LEESU, Que. H3A 2T8, Canada lovejoy@physics.mcgill.ca Received The complexity of geophysics has been with anisotropy, which is rather ubiquitous in geophysics. Keywrods: multifractals, generalized scale invariance

  14. Uncertainty and Predictability in Geophysics: Chaos and Multifractal Insights

    E-Print Network [OSTI]

    Lovejoy, Shaun

    Uncertainty and Predictability in Geophysics: Chaos and Multifractal Insights Daniel Schertzer Department, McGill University, Montreal, Canada Uncertainty and error growth are crosscutting geophysical extremes. The focus is now on time-space geophysical scaling behavior: their multifractality. It is found

  15. Scale, scaling and multifractals in geophysics: twenty Shaun Lovejoy1

    E-Print Network [OSTI]

    Lovejoy, Shaun

    Scale, scaling and multifractals in geophysics: twenty years on Shaun Lovejoy1 and Daniel Schertzer number of degrees of freedom approaches to nonlin- ear geophysics: a) the transition from fractal are generally necessary for geophysical applications. We illustrate these ideas with data analyses from both

  16. Geophysical Research Abstracts Vol. 12, EGU2010-4885, 2010

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    Geophysical Research Abstracts Vol. 12, EGU2010-4885, 2010 EGU General Assembly 2010 © Author(s) 2010 The DIGISOIL multi-sensor system: from geophysical measurements to soil properties. Gilles geophysical technologies for answering this societal demand. To this aim, DIGISOIL addresses four issues

  17. Nathan L. B. Bangs ADDRESS Institute for Geophysics

    E-Print Network [OSTI]

    Yang, Zong-Liang

    Nathan L. B. Bangs ADDRESS Institute for Geophysics The University of Texas Pickle Research Campus@utig.ig.utexas.edu EDUCATION B.A. Williams College, 1983, Geology and Physics M.A. Columbia University, 1986, Marine Geophysics M. Phil. Columbia University, 1987, Marine Geophysics Ph.D. Columbia University, 1991, Marine

  18. Syllabus: Applied Environmental Geophysics MGG 525 Fall 2011, 3 credits

    E-Print Network [OSTI]

    Miami, University of

    1 Syllabus: Applied Environmental Geophysics MGG 525 Fall 2011, 3 credits (Version 110824e) Instructor: Mark Grasmueck, Associate Professor Marine Geology and Geophysics RSMAS University of Miami Tel: The purpose of this course is to familiarize you with the fundamentals of near-surface geophysical site

  19. Geophysical detection and structural characterization of discontinuities in rock

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    Geophysical detection and structural characterization of discontinuities in rock slopes (J. Deparis geophysical methods (seismic, electric and electromagnetic) are available to address this problem, differing and geophysical methods for characterizing the rock mass. Section 2 is dedicated to a review of the main

  20. Geophysical Research Abstracts Vol. 12, EGU2010-8384, 2010

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    Geophysical Research Abstracts Vol. 12, EGU2010-8384, 2010 EGU General Assembly 2010 © Author are known to be highly dependent on local site characteristics. Therefore combining geophysical meth- ods. In order to calibrate geophysical measurements, obser- vations of 130 boreholes (4 meters deep) were made

  1. Geophysical Research Abstracts Vol. 12, EGU2010-11992, 2010

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    Geophysical Research Abstracts Vol. 12, EGU2010-11992, 2010 EGU General Assembly 2010 © Author(s) 2010 Contribution of the airborne geophysical survey to the study of the regolith : A case study of regolith properties: superficial studies combining geology, geochemistry and geophysics become essential

  2. Geophysical Research Abstracts Vol. 12, EGU2010-4993, 2010

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    Geophysical Research Abstracts Vol. 12, EGU2010-4993, 2010 EGU General Assembly 2010 © Author(s) 2010 Geophysical observations at cavity collapse Philippe Jousset, Behrooz Bazargan-Sabet, FranÁois relate the variations of the brine pumping rate with the evolutions of the induced geophysical signals

  3. NATIONAL GEOPHYSICAL DATA CENTER NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

    E-Print Network [OSTI]

    NATIONAL GEOPHYSICAL DATA CENTER NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION U.S. DEPARTMENT Graig McHendrie Stuart M. Smith National Geophysical Data Center Boulder, Colorado September 1977 countries participated in a workshop at the National Geophysical Data Center (NGDC) in Boulder, Colorado

  4. DEPARTMENT OF GEOLOGY & GEOPHYSICS School of Ocean & Earth Science & Technology

    E-Print Network [OSTI]

    DEPARTMENT OF GEOLOGY & GEOPHYSICS School of Ocean & Earth Science & Technology University of Hawaii at Manoa REQUIREMENTS FOR A MINOR IN GEOLOGY & GEOPHYSICS The minor requires GG 101 (or 103) & 101L or GG 170, 200, and 11 credits hours of non-introductory Geology and Geophysics courses at the 300

  5. GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 22, PAGES 2615-3618, NOVEMBER 15, 2000 Geodetic network optimization for geophysical parameters

    E-Print Network [OSTI]

    Tingley, Joseph V.

    GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 22, PAGES 2615-3618, NOVEMBER 15, 2000 3615 Geodetic network optimization for geophysical parameters Geoffrey Blewitt Nevada Bureau of Mines and Geology is gener- alized here, to seek the network configuration that optimizes the precision of geophysical

  6. Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Students (2014-15 academic year)

    E-Print Network [OSTI]

    Johnson, Cari

    Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Students (2014-15 academic year): General Academic Advising for Geology & Geophysics Majors ≠ Ms. Judy for Geology Emphasis, Geoscience Major ≠ Prof. Brenda Bowen (email: brenda.bowen@ utah.edu, office: 341 FASB

  7. Geophysical Constraints on Sediment Dispersal Systems

    E-Print Network [OSTI]

    Johnstone, Elizabeth Anne Carruthers

    2012-01-01

    Seismic Stratigraphy Ė Applications to Hydrocarbon Exploration (Seismic Stra- F01S13 tigraphy: Applications to Hydrocarbon Exploration,

  8. Geophysical constraints on sediment dispersal systems

    E-Print Network [OSTI]

    Johnstone, Elizabeth Anne Carruthers; Johnstone, Elizabeth Anne Carruthers

    2012-01-01

    Seismic Stratigraphy Ė Applications to Hydrocarbon Exploration (Seismic Stra- F01S13 tigraphy: Applications to Hydrocarbon Exploration,

  9. GEOPHYSICS FOR SLOPE STABILITY ROBERT HACK

    E-Print Network [OSTI]

    Hack, Robert

    GEOPHYSICS FOR SLOPE STABILITY ROBERT HACK Section Engineering Geology, Centre for Technical-mail: hack@itc.nl (Received 2 June, 2000; Accepted 4 September, 2000) Abstract. A pre-requisite in slope Publishers. Printed in the Netherlands. #12;424 ROBERT HACK the slope material with, for example, manganese

  10. INVERSION FOR APPLIED GEOPHYSICS: A TUTORIAL

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    velocity, electrical conductivity, or magnetic susceptibility. The appropriate geophysical survey. To obtain that information the data need to be inverted to generate a 3D subsurface distribution principles. Our goal is to present those principles, discuss in detail the essential elements of the inverse

  11. Geophysics of Chemical Heterogeneity in the Mantle

    E-Print Network [OSTI]

    Stixrude, Lars

    , transition zone Abstract Chemical heterogeneity, produced by the near-surface rock cycle and dom- inatedGeophysics of Chemical Heterogeneity in the Mantle Lars Stixrude and Carolina Lithgow. This lithologic-scale chemical het- erogeneity may survive in the mantle for as long as the age of Earth because

  12. Transdimensional Approaches to Geophysical Inverse Problems

    E-Print Network [OSTI]

    Bodin, Thomas

    complicated and quantitative mechanisms with simple qualitative concepts. This research was supported underTransdimensional Approaches to Geophysical Inverse Problems Thomas Bodin October 2010 A thesis Except where otherwise indicated in the text, the research described in this thesis is my own original

  13. GeophysicalResearchLetters RESEARCH LETTER

    E-Print Network [OSTI]

    Gordon, Arnold L.

    GeophysicalResearchLetters RESEARCH LETTER 10.1002/2014GL061661 Key Points: ∑ The 1934 drought), The worst North American drought year of the last millennium: 1934, Geophys. Res. Lett., 41, doi:10 North American drought year of the last millennium: 1934 Benjamin I. Cook1,2 , Richard Seager2

  14. GeophysicalResearchLetters RESEARCH LETTER

    E-Print Network [OSTI]

    GeophysicalResearchLetters RESEARCH LETTER 10.1002/2014GL061661 Key Points: ∑ The 1934 drought), The worst North American drought year of the last millennium: 1934, Geophys. Res. Lett., 41, 7298≠7305, doi Published online 18 OCT 2014 The worst North American drought year of the last millennium: 1934 Benjamin I

  15. Wavelet correlations to reveal multiscale coupling in geophysical systems

    E-Print Network [OSTI]

    Casagrande, Erik; Miralles, Diego; Entekhabi, Dara; Molini, Annalisa

    2015-01-01

    The interactions between climate and the environment are highly complex. Due to this complexity, process-based models are often preferred to estimate the net magnitude and directionality of interactions in the Earth System. However, these models are based on simplifications of our understanding of nature, thus are unavoidably imperfect. Conversely, observation-based data of climatic and environmental variables are becoming increasingly accessible over large scales due to the progress of space-borne sensing technologies and data-assimilation techniques. Albeit uncertain, these data enable the possibility to start unraveling complex multivariable, multiscale relationships if the appropriate statistical methods are applied. Here, we investigate the potential of the wavelet cross-correlation method as a tool for identifying multiscale interactions, feedback and regime shifts in geophysical systems. The ability of wavelet cross-correlation to resolve the fast and slow components of coupled systems is tested on syn...

  16. College of Natural Science and Mathematics Department of Geology and Geophysics

    E-Print Network [OSTI]

    Hartman, Chris

    gEophySicS College of Natural Science and Mathematics Department of Geology and Geophysics 907 credits The geophysics program at UAF specializes in several broad areas of re- search and is closely connected with the Geophysical Institute. Although much of the research conducted by geophysics faculty

  17. Selecting surface geophysical methods for geological, hydrological, geotechnical, and environmental investigation: The rationale for the ASTM provisional guide

    SciTech Connect (OSTI)

    Saunders, W.; Benson, R.; Snelgrove, F.; Soloyanis, S.

    1999-07-01

    The ASTM Provisional Guide (PS 78-97) for Selecting Surface Geophysical Methods was developed as a guide for project managers, contractors, geologists, and geophysicists to assist in selecting the most likely geophysical method or methods to conduct specific subsurface investigations. Numerous surface geophysical methods and techniques exist that can be used to determine subsurface soil and rock properties and their distribution. These same methods are also widely used to investigate and locate manmade structures such as buried objective and landfills. This paper discusses the general uses of surface geophysics and the use of the provisional guide. This paper is not intended to be used as he guide. The ASTM Provisional Guide provides direction in selecting the most appropriate geophysical method or methods for a specific application under general site conditions. Secondary methods are also proposed that, under certain circumstances, should be evaluated before a final selection is made. Some typical conditions under which a primary or secondary method might or might not provide satisfactory results are given in the provisional guide. references for further information about selected methods and to method-specific ASTM guides are also provided. Secondary methods usually have less than desired performance, higher cost, or greater labor requirements as compared to the primary methods.

  18. Geothermal Exploration Cost and Time

    SciTech Connect (OSTI)

    Jenne, Scott

    2013-02-13

    The Department of Energyís Geothermal Technology Office (GTO) provides RD&D funding for geothermal exploration technologies with the goal of lowering the risks and costs of geothermal development and exploration. The National Renewable Energy Laboratory (NREL) was tasked with developing a metric in 2012 to measure the impacts of this RD&D funding on the cost and time required for exploration activities. The development of this cost and time metric included collecting cost and time data for exploration techniques, creating a baseline suite of exploration techniques to which future exploration cost and time improvements can be compared, and developing an online tool for graphically showing potential project impacts (all available at http://en.openei.org/wiki/Gateway: Geothermal). This paper describes the methodology used to define the baseline exploration suite of techniques (baseline), as well as the approach that was used to create the cost and time data set that populates the baseline. The resulting product, an online tool for measuring impact, and the aggregated cost and time data are available on the Open Energy Information website (OpenEI, http://en.openei.org) for public access. - Published 01/01/2013 by US National Renewable Energy Laboratory NREL.

  19. Geophysical constraints on contaminant transport modeling in a heterogeneous fluvial aquifer

    E-Print Network [OSTI]

    Zheng, Chunmiao

    Geophysical constraints on contaminant transport modeling in a heterogeneous fluvial aquifer Jerry the geophysically derived hydraulic conductivity representation in numerical simulations of the natural the effectiveness of geophysically derived and flowmeter based representations of the hydraulic conductivity field

  20. Applying petroleum geophysics to astrophysics: Quantitative 4D seismic study of the solar interior

    E-Print Network [OSTI]

    Crawford, Ian

    Applying petroleum geophysics to astrophysics: Quantitative 4D seismic study, is to a significant extent based on tomographic methods developed in geophysics. The proposed time-lapse seismic methods developed in petroleum geophysics offer the next

  1. Highlights of the 2009 SEG summer research workshop on "CO2 Sequestration Geophysics"

    E-Print Network [OSTI]

    Lumley, D.

    2010-01-01

    on ďCO 2 Sequestration GeophysicsĒ David Lumley (U. W.on ďCO 2 Sequestration GeophysicsĒ was held August 23-27,sequestration: Model Studies: Geophysics, 73, WA105-WA112.

  2. Geophysical Prospecting 31,265-292, 1983. REFLECTION OF ELASTIC WAVES FROM

    E-Print Network [OSTI]

    Santos, Juan

    Geophysical Prospecting 31,265-292, 1983. REFLECTION OF ELASTIC WAVES FROM PERIODICALLY STRATIFIED from Periodically Stratified Media with Interfacial Slip, Geophysical Prospecting 31 phase propagation in some other direction. INTRODUCTION Geophysical media often exhibit anisotropic

  3. Treatise on Geophysics, 2nd Edition 00 (2014) 141 To appear in Treatise on Geophysics, 2nd Edition, Eds. T. Spohn & G. Schubert

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    2014-01-01

    Treatise on Geophysics, 2nd Edition 00 (2014) 1≠41 To appear in Treatise on Geophysics, 2nd Edition Author manuscript, published in "Treatise on Geophysics, 2nd edition, G. Schubert, T. Spohn (Ed.) (2014) in press" #12;T. Guillot & D. Gautier / Treatise on Geophysics, 2nd Edition 00 (2014) 1≠41 2 Contents 1

  4. Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Presentation. This project aims to develop improved geophysical imaging method for characterizing subsurface structure, identify fluid locations, and characterize fractures.

  5. Geophysical logging case history of the Raft River geothermal...

    Open Energy Info (EERE)

    5490655 Citation Applegate, J. K.; Moens, T. A. . 411980. Geophysical logging case history of the Raft River geothermal system, Idaho. () : DOE Information Bridge. Related...

  6. Role of borehole geophysics in defining the physical characteristics...

    Open Energy Info (EERE)

    Role of borehole geophysics in defining the physical characteristics of the Raft River geothermal reservoir, Idaho Jump to: navigation, search OpenEI Reference LibraryAdd to...

  7. Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization

    E-Print Network [OSTI]

    Zhang, Haijiang

    2012-01-01

    We describe the ongoing development of joint geophysical imaging methodologies for geothermal site characterization and demonstrate their potential in two regions: Krafla volcano and associated geothermal fields in ...

  8. Geophysical Setting of the Blue Mountain Geothermal Area, North...

    Open Energy Info (EERE)

    Geophysical Setting of the Blue Mountain Geothermal Area, North-Central Nevada and Its Relationship to a Crustal-Scale Fracture Associated with the Inception of the Yellowstone...

  9. Exoplanetary Geophysics -- An Emerging Discipline

    E-Print Network [OSTI]

    Laughlin, Gregory

    2015-01-01

    Thousands of extrasolar planets have been discovered, and it is clear that the galactic planetary census draws on a diversity greatly exceeding that exhibited by the solar system's planets. We review significant landmarks in the chronology of extrasolar planet detection, and we give an overview of the varied observational techniques that are brought to bear. We then discuss the properties of the currently known distribution, using the mass-period diagram as a guide to delineating hot Jupiters, eccentric giant planets, and a third, highly populous, category that we term "ungiants", planets having masses less than 30 Earth masses and orbital periods less than 100 days. We then move to a discussion of the bulk compositions of the extrasolar planets. We discuss the long-standing problem of radius anomalies among giant planets, as well as issues posed by the unexpectedly large range in sizes observed for planets with masses somewhat greater than Earth's. We discuss the use of transit observations to probe the atmo...

  10. Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii

    E-Print Network [OSTI]

    Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii 2000 1 Sensing Volcanism, Remote Sensing of Active Volcanism, AGU Geophysical Monograph Series 116, Mouginis

  11. Time-lapse Joint Inversion of Geophysical Data and its Applications...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Time-lapse Joint Inversion of Geophysical Data and its Applications to Geothermal Prospecting Time-lapse Joint Inversion of Geophysical Data and its Applications to Geothermal...

  12. DALHOUSIE UNIVERSITY, DEPARTMENT OF EARTH SCIENCES Assistant Professor -Geophysics, Sedimentology, or Geochemistry

    E-Print Network [OSTI]

    Brownstone, Rob

    DALHOUSIE UNIVERSITY, DEPARTMENT OF EARTH SCIENCES Assistant Professor - Geophysics, Sedimentology position in Geophysics, Sedimentology, or Geochemistry. The appointment is probationary tenure

  13. Identification and Characterization of Hydrogeologic Units at the Nevada Test Site Using Geophysical Logs: Examples from the Underground Test Area Project

    SciTech Connect (OSTI)

    Lance Prothro, Sigmund Drellack, Margaret Townsend

    2009-03-25

    The diverse and complex geology of the Nevada Test Site region makes for a challenging environment for identifying and characterizing hydrogeologic units penetrated by wells drilled for the U.S. Department of Energy, National Nuclear Security Administration, Underground Test Area (UGTA) Environmental Restoration Sub-Project. Fortunately, UGTA geoscientists have access to large and robust sets of subsurface geologic data, as well as a large historical knowledge base of subsurface geological analyses acquired mainly during the underground nuclear weapons testing program. Of particular importance to the accurate identification and characterization of hydrogeologic units in UGTA boreholes are the data and interpretation principles associated with geophysical well logs. Although most UGTA participants and stakeholders are probably familiar with drill hole data such as drill core and cuttings, they may be less familiar with the use of geophysical logs; this document is meant to serve as a primer on the use of geophysical logs in the UGTA project. Standard geophysical logging tools used in the UGTA project to identify and characterize hydrogeologic units are described, and basic interpretation principles and techniques are explained. Numerous examples of geophysical log data from a variety of hydrogeologic units encountered in UGTA wells are presented to highlight the use and value of geophysical logs in the accurate hydrogeologic characterization of UGTA wells.

  14. Silver Peak Innovative Exploration Project

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Reduce the high level of risk during the early stages of geothermal project development by conducting a multi-faceted and innovative exploration and drilling program at Silver Peak. Determine the combination of techniques that are most useful and cost-effective in identifying the geothermal resource through a detailed, post-project evaluation of the exploration and drilling program.

  15. GEOPHYSICAL JOURNAL INTERNATIONAL, 133, 379389, 1998 1 A continuous plate-tectonic model using geophysical data

    E-Print Network [OSTI]

    GEOPHYSICAL JOURNAL INTERNATIONAL, 133, 379≠389, 1998 1 A continuous plate-tectonic model using and Technology, University of Hawaii, Honolulu, 96822, USA Summary A continuous kinematic model of present day of the standard plate model; the differences, however, are systematic and indicate the greater proportion of spin

  16. FOURIER TRANSFORM METHODS IN GEOPHYSICS David Sandwell, January, 2013

    E-Print Network [OSTI]

    Sandwell, David T.

    1 FOURIER TRANSFORM METHODS IN GEOPHYSICS David Sandwell, January, 2013 1. Fourier Transforms Fourier transform are use in many areas of geophysics such as image processing, time series analysis, and antenna design. Here we focus on the use of fourier transforms for solving linear partial differential

  17. PETER LEE OLSON Present Position: Professor of Geophysical Fluid Dynamics

    E-Print Network [OSTI]

    Olson, Peter L.

    Power Plant Siting Program Scientific Steering Panel, NASA GRM mission University Corporation of California, Berkeley, California M.A. Geophysics, June 1974, University of California, Berkeley, California B of California, Berkeley (1980) Assistant Professor of Geophysical Fluid Dynamics, Johns Hopkins University

  18. PETER LEE OLSON Present Position: Professor of Geophysical Fluid Dynamics

    E-Print Network [OSTI]

    Olson, Peter L.

    Union, Tectonophysics Section Scientific Advisory Board, Maryland Power Plant Siting Program Scientific Dynamics EDUCATION: Ph.D. Geophysics, June 1977, University of California, Berkeley, California M.A. Geophysics, June 1974, University of California, Berkeley, California B.A. Geology, June 1972, University

  19. PETER LEE OLSON Present Position: Professor of Geophysical Fluid Dynamics

    E-Print Network [OSTI]

    Olson, Peter L.

    Union, Tectonophysics Section Scientific Advisory Board, Maryland Power Plant Siting Program Scientific of California, Berkeley, California M.A. Geophysics, June 1974, University of California, Berkeley, California B of California, Berkeley (1980) Assistant Professor of Geophysical Fluid Dynamics, Johns Hopkins University

  20. DEVELOPING GIS VISUALIZATION WEB SERVICES FOR GEOPHYSICAL APPLICATIONS

    E-Print Network [OSTI]

    DEVELOPING GIS VISUALIZATION WEB SERVICES FOR GEOPHYSICAL APPLICATIONS A. Sayar a,b. *, M. Pierce Commission II, WG II/2 KEY WORDS: GIS, Geophysics, Visualization, Internet/Web, Interoperability, Networks Information System (GIS) community. In this paper we will describe our group's efforts to implement GIS

  1. Geology and Geophysics College of Science code-BS

    E-Print Network [OSTI]

    Kihara, Daisuke

    Geology and Geophysics College of Science code-BS Code-GEOP 120 Credits "C-"or better required Professional Elective (3xxxx and above) (6) EAPS 49000 Geology Field Experience (summer) (3) Science ******************************************************************************************************************************** (effective Fall 2013) #12;Geology and Geophysics Fall 2015 Department of Earth, Atmospheric, and Planetary

  2. Geology and Geophysics College of Science code-BS

    E-Print Network [OSTI]

    Kihara, Daisuke

    Geology and Geophysics College of Science code-BS Code-GEOP 120 Credits "C-"or better required Geology Field Experience (summer) (3) Science/Engineering Elective (2xxxx or above) (3) Science ******************************************************************************************************************************** (effective Fall 2013) #12;Geology and Geophysics http

  3. Geology and Geophysics College of Science code-BS

    E-Print Network [OSTI]

    Kihara, Daisuke

    Geology and Geophysics College of Science code-BS Code-GEOP 120 Credits "C-"or better required Professional Elective (3xxxx and above) (6) EAPS 49000 Geology Field Experience (summer) (3) Science ******************************************************************************************************************************** (effective Fall 2013) #12;Geology and Geophysics Fall 2014 Department of Earth, Atmospheric, and Planetary

  4. Missouri University of Science and Technology 1 Geology and Geophysics

    E-Print Network [OSTI]

    Missouri-Rolla, University of

    Missouri University of Science and Technology 1 Geology and Geophysics Graduate work in Geology are designed to provide you with an understanding of the fundamentals and principles of geology, geochemistry and Environmental Geochemistry ∑ Mineralogy/Petrology/Economic Geology ∑ Geophysics/Tectonics/Remote Sensing

  5. Highlights of the 2009 SEG summer research workshop on ""CO2 sequestration geophysics

    SciTech Connect (OSTI)

    Huang, Lianjie; Lumley, David; Sherlock, Don; Daley, Tom; Lawton, Don; Masters, Ron; Verliac, Michel; White, Don

    2009-01-01

    The 2009 SEG Summer Research Workshop on 'CO{sub 2} Sequestration Geophysics' was held August 23-27, 2009 in Banff, Canada. The event was attended by over 100 scientists from around the world, which proved to be a remarkably successful turnout in the midst of the current global financial crisis and severe corporate travel restrictions. Attendees included SEG President Larry Lines (U. Calgary), and CSEG President John Downton (CGG Veritas), who joined SRW Chairman David Lumley (UWA) in giving the opening welcome remarks at the Sunday Icebreaker. The workshop was organized by an expert technical committee representing a good mix of industry, academic, and government research organizations. The format consisted of four days of technical sessions with over 60 talks and posters, plus an optional pre-workshop field trip to the Columbia Ice Fields to view firsthand the effects of global warming on the Athabasca glacier. Group technical discussion was encouraged by requiring each presenter to limit themselves to 15 minutes of presentation followed by a 15 minute open discussion period. Technical contributions focused on the current and future role of geophysics in CO{sub 2} sequestration, highlighting new research and field-test results with regard to site selection and characterization, monitoring and surveillance, using a wide array of geophysical techniques. While there are too many excellent contributions to mention all individually here, in this paper we summarize some of the key workshop highlights in order to propagate new developments to the SEG community at large.

  6. Highlights of the 2009 SEG summer research workshop on"CO2 Sequestration Geophysics"

    SciTech Connect (OSTI)

    Lumley, D.; Sherlock, D.; Daley, T.; Huang, L.; Lawton, D.; Masters, R.; Verliac, M.; White, D.

    2010-01-15

    The 2009 SEG Summer Research Workshop on CO2 Sequestration Geophysics was held August 23-27, 2009 in Banff, Canada. The event was attended by over 100 scientists from around the world, which proved to be a remarkably successful turnout in the midst of the current global financial crisis and severe corporate travel restrictions. Attendees included SEG President Larry Lines (U. Calgary), and CSEG President John Downton (CGG Veritas), who joined SRW Chairman David Lumley (UWA) in giving the opening welcome remarks at the Sunday Icebreaker. The workshop was organized by an expert technical committee (see side bar) representing a good mix of industry, academic, and government research organizations. The format consisted of four days of technical sessions with over 60 talks and posters, plus an optional pre-workshop field trip to the Columbia Ice Fields to view firsthand the effects of global warming on the Athabasca glacier (Figures 1-2). Group technical discussion was encouraged by requiring each presenter to limit themselves to 15 minutes of presentation followed by a 15 minute open discussion period. Technical contributions focused on the current and future role of geophysics in CO2 sequestration, highlighting new research and field-test results with regard to site selection and characterization, monitoring and surveillance, using a wide array of geophysical techniques. While there are too many excellent contributions to mention all individually here, in this paper we summarize some of the key workshop highlights in order to propagate new developments to the SEG community at large.

  7. New perspectives on superparameterization for geophysical turbulence

    SciTech Connect (OSTI)

    Majda, Andrew J.; Grooms, Ian

    2014-08-15

    This is a research expository paper regarding superparameterization, a class of multi-scale numerical methods designed to cope with the intermittent multi-scale effects of inhomogeneous geophysical turbulence where energy often inverse-cascades from the unresolved scales to the large scales through the effects of waves, jets, vortices, and latent heat release from moist processes. Original as well as sparse spaceĖtime superparameterization algorithms are discussed for the important case of moist atmospheric convection including the role of multi-scale asymptotic methods in providing self-consistent constraints on superparameterization algorithms and related deterministic and stochastic multi-cloud parameterizations. Test models for the statistical numerical analysis of superparameterization algorithms are discussed both to elucidate the performance of the basic algorithms and to test their potential role in efficient multi-scale data assimilation. The very recent development of grid-free seamless stochastic superparameterization methods for geophysical turbulence appropriate for ďeddy-permittingĒ mesoscale ocean turbulence is presented here including a general formulation and illustrative applications to two-layer quasigeostrophic turbulence, and another difficult test case involving one-dimensional models of dispersive wave turbulence. This last test case has randomly generated solitons as coherent structures which collapse and radiate wave energy back to the larger scales, resulting in strong direct and inverse turbulent energy cascades.

  8. CURRICULUM VITAE TARJE NISSEN-MEYER address: ETH Zurich, Institute of Geophysics

    E-Print Network [OSTI]

    Nissen-Meyer, Tarje

    CURRICULUM VITAE TARJE NISSEN-MEYER address: ETH Zurich, Institute of Geophysics Sonneggstrasse 5: ++41 (0) 44 633 3154 fax: ++41 (0) 44 633 1065 AUGUST 5, 2010 Education 2007 Ph.D. Geophysics in field geology, mathematics, seismology, geodynamics, geophysics 2001 Diplom Geophysics (M

  9. To appear in Proceedings of the IEEE Workshop on Advances in Techniques for Analysis of Remotely Sensed Data, Washington, DC, October Abstract Watermarking is widely being explored as a means

    E-Print Network [OSTI]

    Fowler, James E.

    , and its impact on unsupervised classification as well as attacks such as cropping is studied. Index Terms of digital multimedia, watermarking has been widely explored as a means for enforcement of owner- ship rights tolerance in order to aid subsequent analysis. In this paper, we propose a wavelet-based watermarking scheme

  10. Expedited Site Characterization geophysics: Geophysical methods and tools for site characterization

    SciTech Connect (OSTI)

    Goldstein, N.E.

    1994-03-01

    This report covers five classes of geophysical technologies: Magnetics; Electrical/electromagnetic; Seismic reflection; Gamma-ray spectrometry; and Metal-specific spectrometry. Except for radiometry, no other classes of geophysical tedmologies are specific for direct detection of the types of contaminants present at the selected sites. For each of the five classes covered, the report gives a general description of the methodology, its field use, and its general applicability to the ESC Project. In addition, the report gives a sample of the most promising instruments available for each class, including the following information: Hardware/software attributes; Purchase and rental costs; Survey rate and operating costs; and Other applicable information based on case history and field evaluations.

  11. Program Description

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    teaches modern geophysical exploration techniques: seismic reflection and refraction, gravity and magnetics, electromagnetics (including magnetotellurics), and electrical...

  12. About SAGE

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Teaches modern geophysical exploration techniques: seismic reflection and refraction, gravity and magnetics, electromagnetics (including magnetotellurics), and electrical...

  13. MODELING COUPLED FLUID FLOW AND GEOMECHANICAL AND GEOPHYSICAL PHENOMENA WITHIN

    E-Print Network [OSTI]

    MODELING COUPLED FLUID FLOW AND GEOMECHANICAL AND GEOPHYSICAL PHENOMENA WITHIN A FINITE ELEMENT for the modeling of geomechanical effects induced by reservoir production/injection and the cyclic dependence

  14. A Geological And Geophysical Appraisal Of The Baca Geothermal...

    Open Energy Info (EERE)

    A Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Caldera, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

  15. A Geothermal Field Model Based On Geophysical And Thermal Prospectings...

    Open Energy Info (EERE)

    Field Model Based On Geophysical And Thermal Prospectings In Nea Kessani (Ne Greece) Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A...

  16. GEOPHYSICAL RESEARCH LETTERS Supporting Information for "Eddy-mediated

    E-Print Network [OSTI]

    Stewart, Andrew

    GEOPHYSICAL RESEARCH LETTERS Supporting Information for "Eddy-mediated transport of warm, and over- turning circulation. 1 Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, Los Angeles, California, USA. 2 Environmental Sciences and Engineering, California

  17. Mike Batzle holds the Baker Hughes Distinguished Chair of Petrophysics and Borehole Geophysics, at the Colorado School of Mines, where he has been a member of the geophysics

    E-Print Network [OSTI]

    Mike Batzle holds the Baker Hughes Distinguished Chair of Petrophysics and Borehole Geophysics, at the Colorado School of Mines, where he has been a member of the geophysics department for the past 17 years from the University of California, Riverside, and a PhD in geophysics from MIT. His main interests have

  18. REVIEWSOF GEOPHYSICS,VOL. 25, NO. 2, PAGES153-161, MARCH1987 U.S. NATIONAL REPORT TO INTERNATIONAL UNION OF GEODESY AND GEOPHYSICS 1983-1986

    E-Print Network [OSTI]

    Dozier, Jeff

    REVIEWSOF GEOPHYSICS,VOL. 25, NO. 2, PAGES153-161, MARCH1987 U.S. NATIONAL REPORT TO INTERNATIONAL UNION OF GEODESY AND GEOPHYSICS 1983-1986 RecentResearchin SnowHydrology JEFF DOZIER Centerfor Remote thespectraldistri- butionof the incomingsolardirectanddiffuseirradianceand thespectralalbedo: Copyfight1987bytheAmericanGeophysical

  19. Landsat and SPOT data for oil exploration in North-Western China

    SciTech Connect (OSTI)

    Nishidai, Takashi

    1996-07-01

    Satellite remote sensing technology has been employed by Japex to provide information related to oil exploration programs for many years. Since the beginning of the 1980`s, regional geological interpretation through to advanced studies using satellite imagery with high spectral and spatial resolutions (such as Landsat TM and SPOT HRV), have been carried out, for both exploration programs and for scientific research. Advanced techniques (including analysis of airborne hyper-multispectral imaging sensor data) as well as conventional photogeological techniques were used throughout these programs. The first program using remote sensing technology in China focused on the Tarim Basin, Xinjiang Uygur Autonomous Region, and was carried out using Landsat MSS data. Landsat MSS imagery allows us to gain useful preliminary geological information about an area of interest, prior to field studies. About 90 Landsat scenes cover the entire Xinjiang Uygru Autonomous Region, this allowed us to give comprehensive overviews of 3 hydrocarbon-bearing basins (Tarim, Junggar, and Turpan-Hami) in NW China. The overviews were based on the interpretations and assessments of the satellite imagery and on a synthesis of the most up-to-date accessible geological and geophysical data as well as some field works. Pairs of stereoscopic SPOT HRV images were used to generate digital elevation data with a 40 in grid cover for part of the Tarim Basin. Topographic contour maps, created from this digital elevation data, at scales of 1:250,000 and 1:100,000 with contour intervals of 100 m and 50 m, allowed us to make precise geological interpretation, and to carry out swift and efficient geological field work. Satellite imagery was also utilized to make medium scale to large scale image maps, not only to interpret geological features but also to support field workers and seismic survey field operations.

  20. GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS, VOL. ???, XXXX, DOI:10.1029/, The influence of non-uniform ambient noise on1

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS, VOL. ???, XXXX, DOI:10.1029/, The influence of non, Institute of Geophysics, ETH Zurich, Sonneggstrasse 5, Zurich, Switzerland. T. Nissen-Meyer, Institute of Geophysics, ETH Zurich, Sonneggstrasse 5, Zurich, Switzerland. Olaf Schenk, Institute of Computational

  1. A Feasibility Study of Non-Seismic Geophysical Methods forMonitoring Geologic CO2 Sequestration

    SciTech Connect (OSTI)

    Gasperikova, Erika; Hoversten, G. Michael

    2006-07-01

    Because of their wide application within the petroleumindustry it is natural to consider geophysical techniques for monitoringof CO2 movement within hydrocarbon reservoirs, whether the CO2 isintroduced for enhanced oil/gas recovery or for geologic sequestration.Among the available approaches to monitoring, seismic methods are by farthe most highly developed and applied. Due to cost considerations, lessexpensive techniques have recently been considered. In this article, therelative merits of gravity and electromagnetic (EM) methods as monitoringtools for geological CO2 sequestration are examined for two syntheticmodeling scenarios. The first scenario represents combined CO2 enhancedoil recovery (EOR) and sequestration in a producing oil field, theSchrader Bluff field on the north slope of Alaska, USA. The secondscenario is a simplified model of a brine formation at a depth of 1,900m.

  2. Understanding biogeobatteries: Where geophysics meets microbiology

    SciTech Connect (OSTI)

    Revil, A.; Mendonca, C.A.; Atekwana, E.A.; Kulessa, B.; Hubbard, S.S.; Bohlen, K.

    2009-08-15

    Although recent research suggests that contaminant plumes behave as geobatteries that produce an electrical current in the ground, no associated model exists that honors both geophysical and biogeochemical constraints. Here, we develop such a model to explain the two main electrochemical contributions to self-potential signals in contaminated areas. Both contributions are associated with the gradient of the activity of two types of charge carriers, ions and electrons. In the case of electrons, bacteria act as catalysts for reducing the activation energy needed to exchange the electrons between electron donor and electron acceptor. Possible mechanisms that facilitate electron migration include iron oxides, clays, and conductive biological materials, such as bacterial conductive pili or other conductive extracellular polymeric substances. Because we explicitly consider the role of biotic processes in the geobattery model, we coined the term 'biogeobattery'. After theoretical development of the biogeobattery model, we compare model predictions with self-potential responses associated with laboratory and field-scale conducted in contaminated environments. We demonstrate that the amplitude and polarity of large (>100 mV) self-potential signatures requires the presence of an electronic conductor to serve as a bridge between electron donors and acceptors. Small self-potential anomalies imply that electron donors and electron acceptors are not directly interconnected, but instead result simply from the gradient of the activity of the ionic species that are present in the system.

  3. CANADIAN JOURNAL OF EXPLORATION GEOPHYSICS VOL. 29, NO. 1 (JUNE 1993), P. 140-152

    E-Print Network [OSTI]

    Edinburgh, University of

    , and excavation damage in radioactive waste repositories, mines, geothermal reservoirs and other subsurface oper been limited to nearly vertical raypaths in sur- face recordings above local earthquakes and seismic reflec- tion surveys and in subsurface recordings of vertical seismic profiles (VSPs). Recently, shear

  4. CANADIAN JOURNAL OF EXPLORATION GEOPHYSICS VOL. 29, NO. 1 (JUNE 1993), P. 177-188

    E-Print Network [OSTI]

    Edinburgh, University of

    ) and reverse vertical seismic profile (RVSP) data sets at the Conoco Borehole Test Facility (CBTF) have shown [crosshole surveys (CHSs), vertical seismic profiles (VSPs) and reverse VSPs (RVSPs)] and hydrological that fracture parameters can be esti- mated from seismic data. Continuing this development, we analyse data

  5. CANADIAN JOURNAL OF EXPLORATION GEOPHYSICS VOL. 29, NO. 1 (JUNE 1993), P. 227-235

    E-Print Network [OSTI]

    Edinburgh, University of

    , vertical seismic profiles (VSPs) and cross-hole surveys .`(CHSs) [see recent review by Crampin and Love11 surveys and verti- cal seismic profiles. Consequently, polar projections are no longer appropriate and the anisotropy due to vertical fractures in sedimentary basins. The dip of raypaths in cross-hole surveys

  6. 331 Exploration Geophysics (2006) Vol 37, No. 4 Most body wave seismic imaging schemes only exploit

    E-Print Network [OSTI]

    Rawlinson, Nick

    2006-01-01

    and Ellis, 1988) or by wavefront tracking (e.g., Sun, 1992; Lambarť et al., 1992; Vinje et al., 1993). More of the Lagrangian solver by tracking later arrivals in a smoothed version of the Marmousi model. By placing source recently implicit wavefront-tracking algorithms, such as those which use finite difference solutions

  7. NMAC 19.2.17 Geophysical Exploration on Unleased State Trust Lands | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland: EnergyInformationOliver,Minnesota:EnergyNARI JumpNEXTGen0Information

  8. Geophysical Research Abstracts Vol. 12, EGU2010-4777-1, 2010

    E-Print Network [OSTI]

    Boyer, Edmond

    Geophysical Research Abstracts Vol. 12, EGU2010-4777-1, 2010 EGU General Assembly 2010 © Author" River and the damage caused can create routes for floods. Geophysical methods such as Multi

  9. Geophysical Investigations of the Mound City Borrow Pits, Ross County, Ohio

    E-Print Network [OSTI]

    Benson, Blair

    2012-05-31

    Geophysical subsurface imaging is becoming a common practice in archaeology. Non-invasive geophysical methods provide efficient alternatives to costly and invasive excavations, allowing archaeologists to analyze sites before any excavation is done...

  10. Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii

    E-Print Network [OSTI]

    Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii 2003 1 volcanic collapse formation, Geochemistry, Geophysics, Geosystems, 4 (9), 1077, doi:10.1029/2002GC000483

  11. Smithsonian/NASA ADS Physics/Geophysics Abstract Service Find Similar Abstracts (with default settings below)

    E-Print Network [OSTI]

    Mojahedi, Mohammad

    Smithsonian/NASA ADS Physics/Geophysics Abstract Service ∑ Find Similar Abstracts (with default | Query Form | Preferences | HELP | FAQ Physics/Geophysics arXiv e-prints Send Query Reset #12;

  12. Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii

    E-Print Network [OSTI]

    Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii 2005 1. 2 craters. Journal of Geophysical Research 110, E10001, doi: 10.1029/2004JE002338, 2005. 7. Blewett, D. T

  13. ERNEST LUTHER MAJER Ph.D., June 1978 Geophysics, University of California, Berkeley

    E-Print Network [OSTI]

    Ajo-Franklin, Jonathan

    , and for tracking fluid injection fronts. Staff Scientist, Group Leader Geophysics/Geomechanics Group Earth Sciences/Subsurface Geosciences, Geophysics/ Geomechanics Earth Sciences Division, 1994 - 2002 Lawrence Berkeley Laboratory Recent

  14. Well casing-based geophysical sensor apparatus, system and method

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA)

    2010-03-09

    A geophysical sensor apparatus, system, and method for use in, for example, oil well operations, and in particular using a network of sensors emplaced along and outside oil well casings to monitor critical parameters in an oil reservoir and provide geophysical data remote from the wells. Centralizers are affixed to the well casings and the sensors are located in the protective spheres afforded by the centralizers to keep from being damaged during casing emplacement. In this manner, geophysical data may be detected of a sub-surface volume, e.g. an oil reservoir, and transmitted for analysis. Preferably, data from multiple sensor types, such as ERT and seismic data are combined to provide real time knowledge of the reservoir and processes such as primary and secondary oil recovery.

  15. Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii

    E-Print Network [OSTI]

    Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii 2006 1 with an albedo feature near Airy crater in the lunar nearside highlands. Geophysical Research Letters. 9. Boyce viewed by the THEMIS instrument: Double-layered ejecta craters. J. Geophysical Research, 111, E10005, doi

  16. Geophysical Journal International Geophys. J. Int. (2013) doi: 10.1093/gji/ggt425

    E-Print Network [OSTI]

    Nore, Caroline

    2013-01-01

    Geophysical Journal International Geophys. J. Int. (2013) doi: 10.1093/gji/ggt425 GJIGeomagnetismInstitute of Geophysics, ETH Zurich, Zurich 8092, Switzerland. E-mail: ajackson@ethz.ch 2Institute of Geophysics, University of G®ottingen, D-37077 G®ottingen, Germany 3Solar Physics, Hansen Experimental Physics

  17. Geophysical and Astrophysical Fluid Dynamics, Vol. 101, Nos. 56, OctoberDecember 2007, 469487

    E-Print Network [OSTI]

    Lathrop, Daniel P.

    Geophysical and Astrophysical Fluid Dynamics, Vol. 101, Nos. 5≠6, October≠December 2007, 469, USA zInstitute of Geophysics, University of Go® ttingen, Friedrich-Hund-Platz 1, D-37077 Go® ttingen (though later work by Banka and *Corresponding author. Email: dpl@complex.umd.edu Geophysical

  18. Journal of Life Sciences 6 (2012) 335-341 The International Research Group in Geophysics Europe

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    2012-01-01

    Journal of Life Sciences 6 (2012) 335-341 The International Research Group in Geophysics Europe to create the IRGGEA (International Group in Geophysics Europe Africa) in order to pursue the scientific: Scientific network, ethical rules, geophysics, sustainable research, Africa. 1. Introduction

  19. Multifractals and Wavelets: A potential tool in Geophysics Rudolf H. Riedi, Rice University, Houston, Texas

    E-Print Network [OSTI]

    Riedi, Rudolf H.

    Multifractals and Wavelets: A potential tool in Geophysics Rudolf H. Riedi, Rice University of pos- sible applications in geophysics. It is elaborated how a description of the well log measurement to the mentioned elds. This paper is written in the hope of achieving the same in the area of geophysics. The idea

  20. Northern Thailand Geophysics Field Camp: Overview of Activities Lee M. Liberty

    E-Print Network [OSTI]

    Barrash, Warren

    Northern Thailand Geophysics Field Camp: Overview of Activities Lee M. Liberty Boise State University conducted a geophysics field camp in northern Thailand in January, 2010 to train students and professionals in geophysical methods to address environmental and engineering challenges. Faculty, technicians

  1. Geophysical methods applied to characterize landfill covers with geocomposite F. Genelle1, 2

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    Geophysical methods applied to characterize landfill covers with geocomposite F. Genelle1, 2 , C attempt to characterize with geophysical methods the state of landfill covers to detect damages that can. The geophysical methods used were the Electrical Resistivity Tomography (ERT), cartography with an Automatic

  2. Geophysical Surveying with Marine Networked Mobile Robotic Systems: The WiMUST Project

    E-Print Network [OSTI]

    Jesus, Sťrgio M.

    Geophysical Surveying with Marine Networked Mobile Robotic Systems: The WiMUST Project [Extended for geophysical surveying. This paper describes the main features of the envisaged developments, with a focus.00. Figure 1: Conventional geophysical surveying using long lines of towed streamers team. Such teams

  3. Bachelor of Science, Geosciences, Geophysics Emphasis, 2014-2015 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Bachelor of Science, Geosciences, Geophysics Emphasis, 2014-2015 Name ID# Date General Degree General Chemistry II with Lab 4 GEOPH 201 Seeing the Unseen: an Introduction to Geophysics 4 GEOG 360 Physics I & II with Calculus & Labs Physics Option II: PHYS 111-112 General Physics 8-10 Geophysics

  4. UNIVERSITY OF HAWAII AT MANOA GEOLOGY AND GEOPHYSICS GRADUATE PROGRAM SUPPLEMENTAL INFORMATION FORM

    E-Print Network [OSTI]

    UNIVERSITY OF HAWAII AT MANOA ∑ GEOLOGY AND GEOPHYSICS GRADUATE PROGRAM SUPPLEMENTAL INFORMATION of Geology and Geophysics, University of Hawaii, 1680 East-West Road, POST 701, Honolulu, HI 96822 For Semester/YEAR FALL ________ SPRING ________ Intended Graduate Program GEOLOGY AND GEOPHYSICS Degree

  5. Merging high resolution geophysical and geochemical surveys to...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Innovative Exploration Technologies Maui Hawaii & Glass Buttes, Oregon Innovative Exploration Technologies Maui Hawaii & Glass Buttes,...

  6. Exploration of the El Hoyo-Monte Galan Geothermal Concession. Final report

    SciTech Connect (OSTI)

    NONE

    1997-12-01

    In January 1996 Trans-Pacific Geothermal Corporation (TGC) was granted a geothermal concession of 114 square kilometers from the Instituto Nicaragueense de Energie (INE) for the purpose of developing between 50 and 150 MWe of geothermal electrical generating capacity. The Concession Agreement required TGC to perform geological, geophysical, and geochemical studies as part of the development program. TGC commenced the geotechnical studies in January 1996 with a comprehensive review of all existing data and surveys. Based on this review, TGC formulated an exploration plan and executed that plan commencing in April, 1996. The ground magnetic (GM), self potential (SP), magnetotelluric/controlled source audio magnetotelluric (MT/CSAMT) and one-meter temperature surveys, data integration, and synthesis of a hydrogeologic model were performed. The purpose of this report is to present a compilation of all data gathered from the geophysical exploration program and to provide an integrated interpretation of that data.

  7. Three-Year Non-Tenure Track Visiting Assistant Professor Position Geophysics -The University of Alabama Department of Geological

    E-Print Network [OSTI]

    Zheng, Chunmiao

    Three-Year Non-Tenure Track Visiting Assistant Professor Position ≠ Geophysics - The University of Alabama invites applications for a three-year, non-tenure track visiting faculty position in geophysics geophysical sub-disciplines, preference will be given to candidates who will enhance our existing geophysics

  8. Book Series Copyright 2004 by the American Geophysical Union

    E-Print Network [OSTI]

    Xie, Shang-Ping

    ocean currents/fronts. Finally, various atmospheric and oceanic bridges that link different ocean basinsBook Title Book Series Copyright 2004 by the American Geophysical Union 1 A Global Survey of Ocean, College Park, Maryland The interaction of the ocean and atmosphere plays an important role in shaping

  9. Marine Geophysical Research An International Journal for the Study of

    E-Print Network [OSTI]

    Clift, Peter

    1 23 Marine Geophysical Research An International Journal for the Study of the Earth Beneath just prior to full break-up. We identify a major continental block separated from the shelf margin by a basin of hyperextended crust. Oligocene-Early Miocene rifting was followed by mild compression

  10. Nonlinear Processes in Geophysics (2001) 8: 429438 Nonlinear Processes

    E-Print Network [OSTI]

    Boyer, Edmond

    2001-01-01

    Geophysical Society 2001 Mesoscale predictability under various synoptic regimes W. A. Nuss and D. K. Miller slightly ro- tated terrain are compared to gauge the sentivity of mesoscale forecasts to small forecast errors on the mesoscale in both wind and precipitation. The largest mesoscale errors occur when

  11. Surface OceanLower Atmosphere Processes Geophysical Research Series 187

    E-Print Network [OSTI]

    Kohfeld, Karen

    , British Columbia, Canada Andy Ridgwell Bristol Research Initiative for the Dynamic Global Environment251 Surface Ocean≠Lower Atmosphere Processes Geophysical Research Series 187 Copyright 2009, and processes have been identified that have improved our understanding of the modern and future carbon cycle

  12. Recent advances in optimized geophysical survey design Hansruedi Maurer1

    E-Print Network [OSTI]

    method. In contrast, an underdetermined 2D seismic traveltime tomog- raphy design study indicates subsurface information as the full bandwidth.Anon- linear experimental design for a seismic amplitudeRecent advances in optimized geophysical survey design Hansruedi Maurer1 , Andrew Curtis2

  13. 2 Geophysical Aspects of Non-Newtonian Fluid Mechanics

    E-Print Network [OSTI]

    Balmforth, Neil

    2 Geophysical Aspects of Non-Newtonian Fluid Mechanics N.J. Balmforth1 and R.V. Craster2 1, London, SW7 2BZ, UK 2.1 Introduction Non-Newtonian fluid mechanics is a vast subject that has several journals partly, or primarily, dedicated to its investigation (Journal of Non-Newtonian Fluid Mechanics

  14. Geophysical implications of the longwavelength topography of Rhea

    E-Print Network [OSTI]

    Nimmo, Francis

    Geophysical implications of the longwavelength topography of Rhea F. Nimmo,1 B. G. Bills,2 P. C 16 October 2010. [1] We use limb profiles to investigate the longwavelength topography topography of Rhea. The degree 3 topography is large enough, if uncompensated, to contaminate estimates

  15. Hengill geothermal volcanic complex (Iceland) characterized by integrated geophysical observations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Hengill geothermal volcanic complex (Iceland) characterized by integrated geophysical observations Cedex 02, France. 2 GeoForschungsZentrum Potsdam - Section 2.2, 14473 Potsdam, Germany. 3 Iceland GeoSurvey - ISOR , 108 Reykjavík, Iceland Abstract Structural features of volcanic and hydrothermal systems can

  16. Seismic petrophysics: An applied science for reservoir geophysics

    E-Print Network [OSTI]

    Seismic petrophysics: An applied science for reservoir geophysics WAYNE D. PENNINGTON, Michigan a number of seismic attributes, using either prestack or poststack data, or even both in combination's intuition and, per- haps, wishful thinking, as a guide. This short paper introduces a new term "seismic

  17. Teaching Techniques

    E-Print Network [OSTI]

    Howard, Jeff W.

    2005-05-10

    with others such as a small group discussion or the question-answer technique to al- low the 4-H?ers to express their opinion. 2. Illustrated talk This method is an offshoot of the lecture technique, in which the teacher supports the talk with such things... as drawings, posters, copies of articles and other materials. The drawings or posters need not be professional art pieces, they need only be interesting and clear. For ex- ample, in entomology, rather than just talking about the various shapes...

  18. Expedited Site Characterization Geophysics: Geophysical Methods and Tools for Site Characterization

    E-Print Network [OSTI]

    Goldstein, N.E.

    2009-01-01

    Soc. Expl. Geophys. , Tulsa, OK), pp. 127-145. Goldstein,ed. (Soc. Expl. Geophys. , Tulsa, OK), 2,145-152. (coat'@Soc. Explor. Geophys. , Tulsa, OK), 1, 147-189. Zonge, no

  19. 210 2015 Sinopec Geophysical Research Institute Printed in the UK Journal of Geophysics and Engineering

    E-Print Network [OSTI]

    horizontal layers. The anisotropic layer consists of a porous, fluid-saturated material containing vertically of applications including hydrocarbon exploration and production, subsurface storage of CO2, and geothermal energy

  20. The use of exploration 3D seismic data to optimise oil exploration in OPL 210 deepwater, Nigeria

    SciTech Connect (OSTI)

    Nelson, L.C.; Lilletveit, R.; Sandvoll, T. [Statoil and BP Alliance, Stavanger (Norway)] [and others

    1995-08-01

    Allied Energy and the Statoil and BP Alliance are currently partners in the OPL 210 license, in deepwater Nigeria. The license has a 5 year initial exploration phase which carries a two well commitment. To optimize the location of these wells in this challenging and costly drilling environment the partnership has decided to acquire extensive exploration 3D seismic data within the block. Interpretation of the first of two planned 3D surveys has led to a much clearer understanding of: (a) The structural segmentation of the prospect and thus a clearer idea of the likely hydrocarbon pool size. (b) The distribution of amplitude anomalies and thus, hopefully, a superior understanding of reservoir distribution and hydrocarbons. Here the limiting factor is clearly the lack of deepwater geophysical calibration, due to the absence of wells. Consequently, conclusions at this stage, are qualitative either than quantative. Combined with detailed seismic stratigraphic and high tech geophysical analysis, these two aspects will assist in the highgrading of segments in the prospect, prior to final decisions on the well locations. The first well, planned for 1995, will be one of the first wells drilled in the Nigerian deepwater area. Examples of both 2D and 3D data will be used to demonstrate the above and some of the first well results will be integrated into our interpretation to highlight how some of our perceptions may have changed.

  1. Roadmap for Venus Exploration Roadmap for Venus Exploration

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Roadmap for Venus Exploration May 2014 #12;ii Roadmap for Venus Exploration At the VEXAG meeting in November 2013, it was resolved and Investigations for Venus Exploration (GOI), (2) develop a Roadmap for Venus exploration

  2. Development of Exploration Methods for Engineered Geothermal...

    Open Energy Info (EERE)

    Systems Through Integrated Geophysical, Geologic and Geochemical Interpretation the Seismic Analysis Component Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  3. Exploration and Development Techniques for Basin and Range Geothermal...

    Open Energy Info (EERE)

    Abstract Abstract unavailable. Authors David D. Blackwell, Mark Leidig, Richard P. Smith, Stuart D. Johnson and Kenneth W. Wisian Conference GRC Annual Meeting; Reno, NV;...

  4. Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbH JumpEllenville,Power CorpEnergyEunice, Louisiana:PowerOpensolid

  5. Exploration and Development Techniques for Basin and Range Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbH JumpEllenville,PowerEvaporative CoolersExosun Sas JumpSolarAnalogs

  6. Innovative Exploration Techniques for Geothermal Assessment at Jemez

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8, 13 (Vt.Infinifuel BiodieselfDunanPueblo, New Mexico

  7. Innovative Exploration Techniques for Geothermal Assessment at Jemez

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICE INDUSTRIAL TECHNICAL ASSISTANCEPueblo, New Mexico | Department of

  8. Electrochemical Techniques

    SciTech Connect (OSTI)

    Chen, Gang; Lin, Yuehe

    2008-07-20

    Sensitive and selective detection techniques are of crucial importance for capillary electrophoresis (CE), microfluidic chips, and other microfluidic systems. Electrochemical detectors have attracted considerable interest for microfluidic systems with features that include high sensitivity, inherent miniaturization of both the detection and control instrumentation, low cost and power demands, and high compatibility with microfabrication technology. The commonly used electrochemical detectors can be classified into three general modes: conductimetry, potentiometry, and amperometry.

  9. Measurement techniques

    SciTech Connect (OSTI)

    Willis, W.L.

    1980-10-01

    The discussion will be restricted to measurements of voltage and current. Also, although the measurements themselves should be as quantitative as possible, the discussion is rather nonquantitative. Emphasis is on types of instruments, how they may be used, and the inherent advantages and limitations of a given technique. A great deal of information can be obtained from good, clean voltage and current data. Power and impedance are obviously inherent if the proper time relationships are preserved. Often an associated, difficult-to-determine, physical event can be evaluated from the V-I data, such as a time-varying load characteristic, or the time of light emission, etc. The lack of active high voltage devices, such as 50-kV operational amplifiers, restricts measurement devices to passive elements, primarily R and C. There are a few more exotic techniques that are still passive in nature. There are several well-developed techniques for voltage measurements. These include: spark gaps; electrostatic meters; capacitive dividers; mixed RC dividers; and the electro-optic effect. Current is measured by either direct measurement of charge flow or by measuring the resulting magnetic field.

  10. Geophysics-based method of locating a stationary earth object

    DOE Patents [OSTI]

    Daily, Michael R. (Albuquerque, NM); Rohde, Steven B. (Corrales, NM); Novak, James L. (Albuquerque, NM)

    2008-05-20

    A geophysics-based method for determining the position of a stationary earth object uses the periodic changes in the gravity vector of the earth caused by the sun- and moon-orbits. Because the local gravity field is highly irregular over a global scale, a model of local tidal accelerations can be compared to actual accelerometer measurements to determine the latitude and longitude of the stationary object.

  11. Geophysical constraint on a relic background of the dilatons

    E-Print Network [OSTI]

    Sachie Shiomi

    2010-10-15

    According to a scenario in string cosmology, a relic background of light dilatons can be a significant component of the dark matter in the Universe. A new approach of searching for such a dilatonic background by observing Earth's surface gravity was proposed in my previous work. In this paper, the concept of the geophysical search is briefly reviewed, and the geophysical constraint on the dilaton background is presented as a function of the strength of the dilaton coupling, $q_b^2$. For simplicity, I focus on massless dilatons and assume a simple Earth model. With the current upper limit on $q_b^2$, we obtain the upper limit on the dimensionless energy density of the massless background, $\\Omega_{DW}h^2_{100} \\leq 6 \\times 10^{-7}$, which is about one-order of magnitude more stringent than the one from astrophysical observations, at the frequency of $\\sim$ 7 $\\times$ 10$^{-5}$ Hz. If the magnitude of $q_b^2$ is experimentally found to be smaller than the current upper limit by one order of magnitude, the geophysical upper limit on $\\Omega_{DW}h^2_{100}$ becomes less stringent and comparable to the one obtained from the astrophysical observations.

  12. THE BC CRIBS & TRENCHES GEOPHYSICAL CHARACTERIZATION PROJECT ONE STEP FORWARD IN HANFORDS CLEANUP PROCESS

    SciTech Connect (OSTI)

    BENECKE, M.W.

    2005-11-17

    A geophysical characterization project was conducted at the BC Cribs and Trenches Area, located south of 200 East at the Hanford Site. The area consists of 26 waste disposal trenches and cribs, which received approximately 30 million gallons of liquid waste from the uranium recovery process and the ferrocyanide processes associated with wastes generated by reprocessing nuclear fuel. Waste discharges to BC Cribs contributed perhaps the largest liquid fraction of contaminants to the ground in the 200 Areas. The site also includes possibly the largest inventory of Tc-99 ever disposed to the soil at Hanford with an estimated quantity of 400 Ci. Other waste constituents included high volumes of nitrate and U-238. The geophysical characterization at the 50-acre site primarily included high resolution resistivity (HRR). The resistivity technique is a non-invasive method by which electrical resistivity data are collected along linear transects, and data are presented as continuous profiles of subsurface electrical properties. The transects ranged in size from about 400-700 meters and provided information down to depths of 60 meters. The site was characterized by a network of 51 HRR lines with a total of approximately 19.7 line kilometers of data collected parallel and perpendicular to the trenches and cribs. The data were compiled to form a three-dimensional representation of low resistivity values. Low resistivity, or high conductivity, is indicative of high ionic strength soil and porewater resulting from the migration of nitrate and other inorganic constituents through the vadose zone. High spatial density soil data from a single borehole, that included coincident nitrate concentrations, electrical conductivity. and Tc-99, were used to transform the electrical resistivity data into a nitrate plume. The plume was shown to extend laterally beyond the original boundaries of the waste site and, in one area, to depths that exceeded the characterization strategy.

  13. THE BC CRIBS & TRENCHES GEOPHYSICAL CHARACTERIZATION PROJECT ONE STEP FORWARD IN HANFORDS CLEANUP PROCESS

    SciTech Connect (OSTI)

    BENECKE, MN.W.

    2006-02-22

    A geophysical characterization project was conducted at the BC Cribs and Trenches Area, located south of 200 East at the Hanford Site. The area consists of 26 waste disposal trenches and cribs, which received approximately 30 million gallons of liquid waste from the uranium recovery process and the ferrocyanide processes associated with wastes generated by reprocessing nuclear fuel. Waste discharges to BC Cribs contributed perhaps the largest liquid fraction of contaminants to the ground in the 200 Areas. The site also includes possibly the largest inventory of Tc-99 ever disposed to the soil at Hanford with an estimated quantity of 400 Ci. Other waste constituents included high volumes of nitrate and U-238. The geophysical characterization at the 50 acre site primarily included high resolution resistivity (HRR). The resistivity technique is a non-invasive method by which electrical resistivity data are collected along linear transects, and data are presented as continuous profiles of subsurface electrical properties. The transects ranged in size from about 400-700 meters and provided information down to depths of 60 meters. The site was characterized by a network of 51 HRR lines with a total of approximately 19.7 line kilometers of data collected parallel and perpendicular to the trenches and cribs. The data were compiled to form a three-dimensional representation of low resistivity values. Low resistivity, or high conductivity, is indicative of high ionic strength soil and porewater resulting from the migration of nitrate and other inorganic constituents through the vadose zone. High spatial density soil data from a single borehole, that included coincident nitrate concentrations, electrical conductivity, and Tc-99, were used to transform the electrical resistivity data into a nitrate plume. The plume was shown to extend laterally beyond the original boundaries of the waste site and, in one area, to depths that exceeded the characterization strategy. It is unknown whether the plume reached the water table, located approximately 104 meters below ground surface.

  14. The Institute of Geophysics and Planetary Physics (IGPP) at Los Alamos National Laboratory (LANL) is one of the Los Alamos National Laboratory science institutes; it

    E-Print Network [OSTI]

    The Institute of Geophysics and Planetary Physics (IGPP) at Los Alamos National Laboratory of the University of California's Systemwide Institute of Geophysics and Planetary Physics. Its science mission. We address the problem within four specific disciplines: ∑ Geophysics ∑ Global

  15. Southeast Asia applied geophysics workshop: Geoscientists without borders Lee M. Liberty*, Spencer H. Wood, Emily A. Hinz, and Dylan Mikesell, Boise State University, Fongsaward

    E-Print Network [OSTI]

    Barrash, Warren

    Southeast Asia applied geophysics workshop: Geoscientists without borders Lee M. Liberty*, Spencer of the SEG Foundation Geoscientists Without Borders program, we conducted a geophysics workshop in northern Thailand to train students and professionals in geophysical methods to address environmental

  16. An Integrated Model For The Geothermal Field Of Milos From Geophysical...

    Open Energy Info (EERE)

    considered. The combination of these data with earlier studies on the geology and geophysics of Milos allow the compilation of a possible model of the geothermal reservoir and...

  17. Institute of Geophysics and Planetary Physics 1993 annual report, October 1, 1992--September 30, 1993

    SciTech Connect (OSTI)

    Ryerson, F.J.; Budwine, C.M. [eds.

    1994-06-15

    This report contains brief papers on the research being conducted at the Institute of Geophysics and Planetary Physics in 1993 in Geosciences, High-Pressure sciences, and Astrophysics.

  18. exploration, Los Alamos Rover

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NASA agreements advance Mars exploration, Los Alamos Rover instrument a key component June 17, 2015 SuperCam's body to be built at Los Alamos and the mast in France LOS ALAMOS,...

  19. New River Geothermal Exploration (Ram Power Inc.)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Miller, Clay

    2013-11-15

    The New River Geothermal Exploration (DOE Award No. EE0002843) is located approximately 25km south of the Salton Sea, near town of Brawley in Imperial County and approximately 150km east of San Diego, California. A total of 182 MT Logger sites were completed covering the two separate Mesquite and New River grids. The data was collected over a frequency range of 320Hz to 0.001Hz with variable site spacing. A number of different inversion algorithms in 1D, 2D and 3D were used to produce resistivity-depth profiles and maps of subsurface resistivity variations over the survey area. For 2D inversions, a total of eighteen lines were constructed in east-west and north-south orientations crossing the entire survey area. For MT 3D inversion, the New River property was divided in two sub-grids, Mesquite and New River areas. The report comprises of two parts. For the first part, inversions and geophysical interpretation results are presented with some recommendations of the potential targets for future follow up on the property. The second part of the report describes logistics of the survey, survey parameters, methodology and the survey results (data) in digital documents. The report reviews a Spartan MT survey carried out by Quantec Geoscience Limited over the New River Project in California, USA on behalf of Ram Power Inc. Data was acquired over a period of 29 days from 2010/06/26 to 2010/07/24.

  20. New River Geothermal Exploration (Ram Power Inc.)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Miller, Clay

    The New River Geothermal Exploration (DOE Award No. EE0002843) is located approximately 25km south of the Salton Sea, near town of Brawley in Imperial County and approximately 150km east of San Diego, California. A total of 182 MT Logger sites were completed covering the two separate Mesquite and New River grids. The data was collected over a frequency range of 320Hz to 0.001Hz with variable site spacing. A number of different inversion algorithms in 1D, 2D and 3D were used to produce resistivity-depth profiles and maps of subsurface resistivity variations over the survey area. For 2D inversions, a total of eighteen lines were constructed in east-west and north-south orientations crossing the entire survey area. For MT 3D inversion, the New River property was divided in two sub-grids, Mesquite and New River areas. The report comprises of two parts. For the first part, inversions and geophysical interpretation results are presented with some recommendations of the potential targets for future follow up on the property. The second part of the report describes logistics of the survey, survey parameters, methodology and the survey results (data) in digital documents. The report reviews a Spartan MT survey carried out by Quantec Geoscience Limited over the New River Project in California, USA on behalf of Ram Power Inc. Data was acquired over a period of 29 days from 2010/06/26 to 2010/07/24.

  1. Canadian incentives for oil and gas exploration. [Applicability to USA

    SciTech Connect (OSTI)

    Not Available

    1980-04-01

    During the 1970s a number of different exploration and production incentive programs were put in place in Canada, in particular in the Province of Alberta, Canada's principal oil- and gas-producing province. The DOE/RA is evaluating Canadian incentives for oil and gas exploration, and this study is intended to provide information that will help guide DOE/RA in determining the applicability of Canadian incentive programs in US energy policy. The study describes and documents the fiscal structure in which the Canadian oil industry operates. The incentive features of pricing policy, taxation policy, and provincial royalty systems are discussed. A principal focus of the study is on one of the most important of Canada's specific incentive programs, the Alberta Exploratory Drilling Incentive Credit Program (EDICP). The study describes and evaluates the effect of the EDICP on increased oil and gas exploration activity. Similarly, the study also reviews and evaluates other specific incentive programs such as the Alberta Geophysical Incentive Program, Frontier Exploration Allowances, and various tar sand and heavy oil development incentives. Finally the study evaluates the applicability of Canadian incentives to US energy policy.

  2. Geophysical Journal International Geophys. J. Int. (2013) 193, 603614 doi: 10.1093/gji/ggs120

    E-Print Network [OSTI]

    Demouchy, Sylvie

    2013-01-01

    Geophysical Journal International Geophys. J. Int. (2013) 193, 603≠614 doi: 10.1093/gji/ggs120 of the Earth's magnetic field, performed by satel- lite and geophysical observatories, through historical

  3. Geophysical Research Abstracts, Vol. 8, 06396, 2006 SRef-ID: 1607-7962/gra/EGU06-A-06396

    E-Print Network [OSTI]

    Jamieson, Bruce

    Geophysical Research Abstracts, Vol. 8, 06396, 2006 SRef-ID: 1607-7962/gra/EGU06-A-06396 © European) Dept. of Geology and Geophysics, University of Calgary, Alberta, Canada This study investigates

  4. Geophysical Research Abstracts, Vol. 6, 01855, 2004 SRef-ID: 1607-7962/gra/EGU04-A-01855

    E-Print Network [OSTI]

    Demouchy, Sylvie

    Geophysical Research Abstracts, Vol. 6, 01855, 2004 SRef-ID: 1607-7962/gra/EGU04-A-01855 c European (benoit@dstu.univ-montp2.fr), (2) Department of Geology and Geophysics, Texas A&M University, College

  5. Geophysical Research Abstracts, Vol. 8, 05723, 2006 SRef-ID: 1607-7962/gra/EGU06-A-05723

    E-Print Network [OSTI]

    Demouchy, Sylvie

    Geophysical Research Abstracts, Vol. 8, 05723, 2006 SRef-ID: 1607-7962/gra/EGU06-A-05723 © European) Scripps Inst. of Oceanography, UCSD, la Jolla, USA, (3) Dpt of Geology and Geophysics, Univ. of Wyoming

  6. Geophysical Research Abstracts, Vol. 9, 11521, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-11521

    E-Print Network [OSTI]

    Jamieson, Bruce

    Geophysical Research Abstracts, Vol. 9, 11521, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-11521, University of Calgary, Calgary AB, Canada, (3) Department of Geology and Geophysics, University of Calgary

  7. Joint stochastic inversion of geophysical data for reservoir parameter estimation Jinsong Chen* and G. Michael Hoversten, Lawrence Berkeley National Laboratory

    E-Print Network [OSTI]

    Chen, Jinsong

    Joint stochastic inversion of geophysical data for reservoir parameter estimation Jinsong Chen to estimate porosity ( ) and water saturation (Sw) using multiple sources of information, including borehole the stochastic framework, both reservoir parameters and geophysical attributes at unsampled locations

  8. Geophysical Prospecting, 2011, 59, 609626 doi: 10.1111/j.1365-2478.2010.00937.x Uncertainty analysis for the integration of seismic and controlled

    E-Print Network [OSTI]

    Snieder, Roel

    , there is an increasing interest in the integration of the seismic and CSEM methods in deep ma- rine exploration (Harris@mines.edu an effective complementary tool when combined with seismic exploration. The seismic and CSEM methods are disparate exploration techniques that are sensitive to different medium properties: the seismic method

  9. Towards a comprehensive open-source system for geophysical data processing

    E-Print Network [OSTI]

    Patterson, William P.

    used in seismic interpretation. These three components operate in parallel on a distributed computerTowards a comprehensive open-source system for geophysical data processing and interpretation Glenn of a broad range of geophysical data, with emphasis on reflection/refraction seismics. The package also

  10. Reducing the Dimensionality of Geophysical Data in Conjunction with Seismic History Matching

    E-Print Network [OSTI]

    Eidsvik, Jo

    dimensional geophysical data, e.g. 2-D seismic images or 3-D seismic cubes, can often be described using only by geophysical observations and the complexity of working with 3D fields make the updating procedure hard. We are tested on a reservoir model of an anonymous North Sea oil field, using the seismic time shift, i

  11. Allan variance computed in space domain: Application to InSAR data to characterize noise and geophysical signal

    E-Print Network [OSTI]

    Cavaliť, Olivier

    2015-01-01

    The Allan variance was introduced fifty years ago for analyzing the stability of frequency standards. Beside its metrological interest, it is also an estimator of the large trends of the power spectral density (PSD) of frequency deviation. For instance, the Allan variance is able to discriminate different types of noise characterized by different power laws in the PSD. But, it was also used in other fields: accelerometry, geophysics, geodesy, astrophysics and even finances! However, it seems that up to now, it has been exclusively applied for time series analysis. We propose here to use the Allan variance onto spatial data. Interferometric synthetic aperture radar (InSAR) is used in geophysics to image ground displacements in space (over the SAR image spatial coverage) and in time thank to the regular SAR image acquisitions by dedicated satellites. The main limitation of the technique is the atmospheric disturbances that affect the radar signal while traveling from the sensor to the ground and back. In this p...

  12. Atmospheric and Geophysical Sciences Division Program Report, 1988--1989

    SciTech Connect (OSTI)

    Not Available

    1990-06-01

    In 1990, the Atmospheric and Geophysical Sciences Division begins its 17th year as a division. As the Division has grown over the years, its modeling capabilities have expanded to include a broad range of time and space scales ranging from hours to decades and from local to global. Our modeling is now reaching out from its atmospheric focus to treat linkages with the oceans and the land. In this report, we describe the Division's goal and organizational structure. We also provide tables and appendices describing the Division's budget, personnel, models, and publications. 2 figs., 1 tab.

  13. BSU Geophysics Field Camp Report 2012 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColorado State Office JumpUtahPlc Jump to:Geophysics

  14. This article was downloaded by: [Institute of Geology and Geophysics of CAS] On: 29 November 2011, At: 16:34

    E-Print Network [OSTI]

    Tian, Weidong

    This article was downloaded by: [Institute of Geology and Geophysics of CAS] On: 29 November 2011 a & Dunyi Liu b a Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China b Beijing Fana and Dunyi Liub a Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

  15. GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, A new 1.6-micron map of Titan's surface

    E-Print Network [OSTI]

    Brown, Michael E.

    GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, A new 1.6-micron map of Titan's surface are likely craters. Accepted for publication in Geophysical Research Letters. Copyright 2004 American Geophysical Union. Further re- production or electronic distribution is not permitted. 1. Introduction

  16. Joint stochastic inversion of geophysical data for reservoir parameter estimation Jinsong Chen* and G. Michael Hoversten, Lawrence Berkeley National Laboratory

    E-Print Network [OSTI]

    Chen, Jinsong

    studies, reservoir parameters as well as geophysical attributes at unsampled locations were considered relationships between the reservoir parameters and the geophysical attributes were enforced. Those methods and the geophysical attributes. Unlike conventional inversion, our stochastic inversion of seismic P-wave velocity

  17. Oil and Gas Exploration

    E-Print Network [OSTI]

    Tingley, Joseph V.

    , oil and gas, and geothermal activities and accomplishments in Nevada: production statistics Products 23. Sloan dolomite quarry 24. Weiser gypsum quarry Oil Fields 1. Blackburn field 2. North WillowMetals Industrial Minerals Oil and Gas Geothermal Exploration Development Mining Processing Nevada

  18. Exploring the Higgs portal

    E-Print Network [OSTI]

    Christoph Englert; Tilman Plehn; Dirk Zerwas; Peter M. Zerwas

    2011-08-19

    We study the Higgs portal from the Standard-Model to a hidden sector and examine which elements of the extended theory can be discovered and explored at the LHC. Our model includes two Higgs bosons covering parameter regions where the LHC will be sensitive to two, one or none of the particles at typical discovery luminosities for Standard Model Higgs production.

  19. Exploring Functional Mellin Transforms

    E-Print Network [OSTI]

    J. LaChapelle

    2015-01-08

    We define functional Mellin transforms within a scheme for functional integration proposed in [1]. Functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored.

  20. Exploring Civil and Environmental

    E-Print Network [OSTI]

    1 CEE 100 Exploring Civil and Environmental Engineering #12;CEE 100 Schedule--Winter 2010 https Lundquist Hydrology, Water Resources, and Environmental Fluid Mechanics January 20 Pedro Arduino Engineering and Mechanics February 10 Dave Stensel Environmental Engineering and Science February 17 Mark

  1. Development and Demonstration of Mobile, Small Footprint Exploration and Development Well System for Arctic Unconventional Gas Resources (ARCGAS)

    SciTech Connect (OSTI)

    Paul Glavinovich

    2002-11-01

    Traditionally, oil and gas field technology development in Alaska has focused on the high-cost, high-productivity oil and gas fields of the North Slope and Cook Inlet, with little or no attention given to Alaska's numerous shallow, unconventional gas reservoirs (carbonaceous shales, coalbeds, tight gas sands). This is because the high costs associated with utilizing the existing conventional oil and gas infrastructure, combined with the typical remoteness and environmental sensitivity of many of Alaska's unconventional gas plays, renders the cost of exploring for and producing unconventional gas resources prohibitive. To address these operational challenges and promote the development of Alaska's large unconventional gas resource base, new low-cost methods of obtaining critical reservoir parameters prior to drilling and completing more costly production wells are required. Encouragingly, low-cost coring, logging, and in-situ testing technologies have already been developed by the hard rock mining industry in Alaska and worldwide, where an extensive service industry employs highly portable diamond-drilling rigs. From 1998 to 2000, Teck Cominco Alaska employed some of these technologies at their Red Dog Mine site in an effort to quantify a large unconventional gas resource in the vicinity of the mine. However, some of the methods employed were not fully developed and required additional refinement in order to be used in a cost effective manner for rural arctic exploration. In an effort to offset the high cost of developing a new, low-cost exploration methods, the US Department of Energy, National Petroleum Technology Office (DOE-NPTO), partnered with the Nana Regional Corporation and Teck Cominco on a technology development program beginning in 2001. Under this DOE-NPTO project, a team comprised of the NANA Regional Corporation (NANA), Teck Cominco Alaska and Advanced Resources International, Inc. (ARI) have been able to adapt drilling technology developed for the mineral industry for use in the exploration of unconventional gas in rural Alaska. These techniques have included the use of diamond drilling rigs that core small diameter (< 3.0-inch) holes coupled with wireline geophysical logging tools and pressure transient testing units capable of testing in these slimholes.

  2. Geophysics: Building E5190 decommissioning, Aberdeen Proving Ground

    SciTech Connect (OSTI)

    Miller, S.F.; Thompson, M.D.; McGinnis, M.G.; McGinnis, L.D.

    1992-07-01

    Building E5190 is one of ten potentially contaminated sites in the Canal Creek area of the Edgewood section of Aberdeen Proving Ground examined by a geophysical team from Argonne National Laboratory in April and May 1992. A noninvasive geophysical survey, including the complementary technologies of magnetics, electrical resistivity, and ground-penetrating radar, was conducted around the perimeter as a guide to developing a sampling and monitoring program prior to decommissioning and dismantling the building. The magnetics surveys indicated that multistation, positive magnetic sources are randomly distributed north and west of the building. Two linear trends were noted: one that may outline buried utility lines and another that is produced by a steel-covered trench. The resistivity profiling indicated three conductive zones: one due to increased moisture in a ditch, one associated with buried utility lines, and a third zone associated with the steel-covered trench. Ground-penetrating radar imaging detected two significant anomalies, which were correlated with small-amplitude magnetic anomalies. The objectives of the study -- to detect and locate objects and to characterize a located object were achieved.

  3. User's manual for geophysical well-logging software programs

    SciTech Connect (OSTI)

    Petrie, G.M.; Gibson, D.; Blair, S.C.

    1983-02-01

    Since 1958 the Ground-Water Surveillance Program for the Hanford Site has made geophysical logging measurements in most of the 800 wells and deep boreholes that have been drilled on the Hanford Site. In 1980 the Pacific Northwest Laboratory (PNL), which conducts the Ground-Water Surveillance Program, began forming a computerized data base for storing and retrieving geophysical well log data and developing software for quantitative analysis of the well log data. This report, designed to serve as a user's guide, documents the data base system that handles the well log data. Two programs, DIGLOG1 and LOGIT, are used to manipulate the data. The program DIGLOG1 translates analog paper strip charts into digital format; the program LOGIT is a general utility program that edits, displays, checks, stores, writes, and deletes sets of well log data. These two programs do not provide sophisticated display and analytical capabilities; rather, they provide programs that give the user easy access to powerful standard analytical software.

  4. Spatial correlation structure estimation using geophysical and hydrogeological data

    E-Print Network [OSTI]

    Hubbard, Susan

    and sufficient hydraulic property measurements using conventional sampling techniques, render estimation the spatial correlation structure of these properties using these conventional field sampling techniques) hydrological techniques require drilling, and the installed wells change the nature of the flow processes

  5. Inversion of surface and borehole gravity with thresholding and density constraints Jiajia Sun and Yaoguo Li, Center for Gravity, Electrical and Magnetic Studies, Department of Geophysics, Colorado

    E-Print Network [OSTI]

    and Yaoguo Li, Center for Gravity, Electrical and Magnetic Studies, Department of Geophysics, Colorado School

  6. Exploration for deep coal

    SciTech Connect (OSTI)

    NONE

    2008-12-15

    The most important factor in safe mining is the quality of the roof. The article explains how the Rosebud Mining Co. conducts drilling and exploration in 11 deep coal mine throughout Pennsylvania and Ohio. Rosebud uses two Atlas Copco CS10 core drilling rigs mounted on 4-wheel drive trucks. The article first appeared in Atlas Copco's in-house magazine, Deep Hole Driller. 3 photos.

  7. A hydrogeological evaluation of alluvial fans in northern Big Bend National Park, Texas, using geophysical methods†

    E-Print Network [OSTI]

    Archer, Jerry Alan

    1982-01-01

    additional ground-water resources. One major aspect of the 5 yr investigation is to study the hydrogeologic role of the extensive alluvial deposits. This portion of the project is aimed at determining alluvial fan morphol- ogy and bedrock topography.... Seismic Investigation Previous Work The seismic refraction technique has been used extensively in ground-water exploration, particularly when the hydrogeologic situation consists of unconsolidated sands and gravel overlying WELL IO, 4a, '2 3 ~b 4 5...

  8. Parameterization of geophysical inversion model using particle clustering

    E-Print Network [OSTI]

    Yang, Dikun

    2015-01-01

    This paper presents a new method of constructing physical models in a geophysical inverse problem, when there are only a few possible physical property values in the model and they are reasonably known but the geometry of the target is sought. The model consists of a fixed background and many small "particles" as building blocks that float around in the background to resemble the target by clustering. This approach contrasts the conventional geometric inversions requiring the target to be regularly shaped bodies, since here the geometry of the target can be arbitrary and does not need to be known beforehand. Because of the lack of resolution in the data, the particles may not necessarily cluster when recovering compact targets. A model norm, called distribution norm, is introduced to quantify the spread of particles and incorporated into the objective function to encourage further clustering of the particles. As proof of concept, 1D magnetotelluric inversion is used as example. My experiments reveal that the ...

  9. Flow networks: A characterization of geophysical fluid transport

    E-Print Network [OSTI]

    Enrico Ser-Giacomi; Vincent Rossi; Cristobal Lopez; Emilio Hernandez-Garcia

    2015-03-05

    We represent transport between different regions of a fluid domain by flow networks, constructed from the discrete representation of the Perron-Frobenius or transfer operator associated to the fluid advection dynamics. The procedure is useful to analyze fluid dynamics in geophysical contexts, as illustrated by the construction of a flow network associated to the surface circulation in the Mediterranean sea. We use network-theory tools to analyze the flow network and gain insights into transport processes. In particular we quantitatively relate dispersion and mixing characteristics, classically quantified by Lyapunov exponents, to the degree of the network nodes. A family of network entropies is defined from the network adjacency matrix, and related to the statistics of stretching in the fluid, in particular to the Lyapunov exponent field. Finally we use a network community detection algorithm, Infomap, to partition the Mediterranean network into coherent regions, i.e. areas internally well mixed, but with little fluid interchange between them.

  10. Atmospheric and Geophysical Sciences Division: Program report, FY 1987

    SciTech Connect (OSTI)

    Not Available

    1988-05-01

    In 1988 the Atmospheric and Geophysical Sciences Division began its 15th year as a division. As the Division has grown over the years, its modeling capabilities have expanded to include a broad range of time and space scales ranging from hours to years, and from kilometers to global, respectively. For this report, we have chosen to show a subset of results from several projects to illustrate the breadth, depth, and diversity of the modeling activities that are a major part of the Division's research, development, and application efforts. In addition, the recent reorganization of the Division, including the merger of another group with the Division, is described, and the budget, personnel, models, and publications are reviewed. 95 refs., 26 figs., 2 tabs.

  11. Exploring colourful holographic superconductors

    E-Print Network [OSTI]

    Kasper Peeters; Jonathan Powell; Marija Zamaklar

    2009-07-09

    We explore a class of holographic superconductors built using non-abelian condensates on probe branes in conformal and non-conformal backgrounds. These are shown to exhibit behaviour of the specific heat which resembles that of heavy fermion compounds in the superconducting phase. Instead of showing BCS-like exponential behaviour, the specific heat is polynomial in the temperature. It exhibits a jump at the critical temperature, in agreement with real-world superconductors. We also analyse the behaviour of the energy gap and the AC and DC conductivities, and find that the systems can be either semi-conducting or metallic just above the critical temperature.

  12. Geophysical Monitoring of Ground Surface Deformation Associated with a Confined Aquifer Storage and Recovery Operation

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Bonneville, Alain; Heggy, Essam; Strickland, Christopher E.; Normand, Jonathan; Dermond, Jeffrey A.; Fang, Yilin; Sullivan, E. C.

    2015-08-11

    A main issue in the storage of large volumes of fluids, mainly water and CO2, in the deep subsurface is to determine their field-scale-induced displacements and consequences on the mechanical behavior of the storage reservoir and surroundings. A quantifiable estimation of displacement can be made by combining the robust, cost-effective, and repeatable geophysical techniques of micro-gravimetry, differential global positioning system (DGPS), and differential synthetic aperture radar interferometry (DInSAR). These techniques were field tested and evaluated in an active large-volume aquifer storage and recovery (ASR) project in Pendleton, Oregon, USA, where three ASR wells are injecting up to 1.9 million m3/yr-1more†Ľinto basalt aquifers to a depth of about 150 m. Injection and recovery of water at the wells was accompanied by significant gravity anomalies and vertical deformation of the ground surface localized to the immediate surroundings of the injection wells as evidenced by DGPS and gravity measurements collected in 2011. At a larger scale, and between 2011 and 2013, DInSAR monitoring of the Pendleton area suggests the occurrence of sub-centimetric deformation in the western part of the city and close to the injection locations associated with the ASR cycle. A numerical simulation of the effect of the water injection gives results in good agreement with the observations and confirms the validity of the approach, which could be deployed in similar geological contexts to look at the mechanical effects of water and gas injections. The gravity signal reflects deep phenomena and gives additional insight into the repartition of fluids in the subsurface.ę†less

  13. Reprint -Proceedings 2009 International Pittsburgh Coal Conference 1 GEOPHYSICAL CHARACTERIZATION OF THE MARSHALL

    E-Print Network [OSTI]

    Wilson, Thomas H.

    Reprint - Proceedings 2009 International Pittsburgh Coal Conference 1 GEOPHYSICAL CHARACTERIZATION, Director National Research Center for Coal and Energy Richard A. Winschel, Director Research Services coal seam in the Northern Appalachian Basin. Researchers from CONSOL Energy Inc., West Virginia

  14. Geology and Geophysics at The University of Kansas Geology's High-Tech Revolution

    E-Print Network [OSTI]

    GHAWKER Geology and Geophysics at The University of Kansas Fall 2009 Geology's High-Tech Revolution Associates Program of the Kansas University Endowment Association. The High-Tech Revolution A geologist

  15. Course: Numerical Simulation in Applied Geophysics. From the Mesoscale to the Macroscale

    E-Print Network [OSTI]

    Santos, Juan

    Course: Numerical Simulation in Applied Geophysics. From the Mesoscale to the Macroscale Professor variations in the fluid and solid matrix properties, fine layering, frac- tures and craks at the mesoscale

  16. The dynamics of oceanic transform faults : constraints from geophysical, geochemical, and geodynamical modeling

    E-Print Network [OSTI]

    Gregg, Patricia Michelle Marie

    2008-01-01

    Segmentation and crustal accretion at oceanic transform fault systems are investigated through a combination of geophysical data analysis and geodynamical and geochemical modeling. Chapter 1 examines the effect of fault ...

  17. Geologic and geophysical investigation of a small water retention structure, Salado, Tx†

    E-Print Network [OSTI]

    Carter, James Lewis

    2002-01-01

    erosion. Although such problems do not pose a significant risk to life or property, they do pose a financial liability to the landowner. For those whose ponds are undergoing such problems, a basic geological and geophysical investigation can help...

  18. Geology and Geophysics 454: Engineering Geology Spring Semester, 2015, 3.0 Units

    E-Print Network [OSTI]

    1 Geology and Geophysics 454: Engineering Geology Spring Semester, 2015: "Engineering Geology" by Perry Rahn, or "Practical Engineering Geology" by Steve Hencher Class Themes This class emphasizes a modern approach to engineering geology

  19. Department of Geology & Geophysics, Spring 2015 GG304: Physics of the Earth and Planets

    E-Print Network [OSTI]

    1 Department of Geology & Geophysics, Spring 2015 GG304: Physics of the Earth and Planets The Earth's shape, orbit, interior structure, and geological evolution are all the result of the interaction

  20. Electrical conductivity of continental lithospheric mantle from integrated geophysical and petrological modeling

    E-Print Network [OSTI]

    Jones, Alan G.

    Electrical conductivity of continental lithospheric mantle from integrated geophysical; published 11 October 2011. [1] The electrical conductivity of mantle minerals is highly sensitive, and compositional variations. The bulk electrical conductivity model has been integrated into the software package

  1. Ng Chung-Sung Geophysical Institute, University of Alaska Fairbanks, Fairbanks, Alaska 99775, USA

    E-Print Network [OSTI]

    Ng, Chung-Sang

    Ng Chung-Sung C. S. Ng Geophysical Institute, University of Alaska Fairbanks, Fairbanks, Alaska in a statistical steady state [Ng and Bhattacharjee, Astrophys. J., 675, 899 (2008)]. Our numerical work has now

  2. Geophysical applications of nuclear resonant spectroscopy Wolfgang Sturhahn and Jennifer M. Jackson*

    E-Print Network [OSTI]

    Jackson, Jennifer M.

    Geophysical applications of nuclear resonant spectroscopy Wolfgang Sturhahn and Jennifer M. Jackson summarize recent developments of nuclear resonant spectroscopy methods like nuclear resonant inelastic x important information on valence, spin state, and magnetic ordering. Both methods use a nuclear resonant

  3. Marine Geophysical Researches 20: 403423, 1998. 1998 Kluwer Academic Publishers. Printed in the Netherlands.

    E-Print Network [OSTI]

    Cattin, Rodolphe

    Marine Geophysical Researches 20: 403≠423, 1998. © 1998 Kluwer Academic Publishers. Printed in the Netherlands. 403 A detailed study of the Gagua Ridge: A fracture zone uplifted during a plate reorganisation

  4. Innovative Exploration Technologies Subprogram Overview

    Broader source: Energy.gov [DOE]

    This overview of GTP's Innovative Exploration Technologies subprogram was given at the GTP Program Peer Review on May 18, 2010.

  5. GEOPHYSICS, VOL. 63, NO. 3 (MAY-JUNE 1998); P. 826840, 22 FIGS. Marine magnetotellurics for petroleum exploration, Part II

    E-Print Network [OSTI]

    Constable, Steve

    errors in the locations of interfaces caused by neglecting velocity anisotropy in migration in the Gulf of Mexico. Deeper in the section where two-way times are on the order of 4 s, lateral position errors in migration become comparable to those of the MT inverse, whereas seismic vertical po- sition

  6. The Extreme Physics Explorer

    E-Print Network [OSTI]

    Martin Elvis

    2006-08-25

    Some tests of fundamental physics - the equation of state at supra-nuclear densities, the metric in strong gravity, the effect of magnetic fields above the quantum critical value - can only be measured using compact astrophysical objects: neutron stars and black holes. The Extreme Physics Explorer is a modest sized (~500 kg) mission that would carry a high resolution (R ~300) X-ray spectrometer and a sensitive X-ray polarimeter, both with high time resolution (~5 ?s) capability, at the focus of a large area (~5 sq.m), low resolution (HPD~1 arcmin) X-ray mirror. This instrumentation would enable new classes of tests of fundamental physics using neutron stars and black holes as cosmic laboratories.

  7. Empirical comparison of network sampling techniques

    E-Print Network [OSTI]

    Blagus, Neli; Bahec, Marko

    2015-01-01

    In the past few years, the storage and analysis of large-scale and fast evolving networks present a great challenge. Therefore, a number of different techniques have been proposed for sampling large networks. In general, network exploration techniques approximate the original networks more accurately than random node and link selection. Yet, link selection with additional subgraph induction step outperforms most other techniques. In this paper, we apply subgraph induction also to random walk and forest-fire sampling. We analyze different real-world networks and the changes of their properties introduced by sampling. We compare several sampling techniques based on the match between the original networks and their sampled variants. The results reveal that the techniques with subgraph induction underestimate the degree and clustering distribution, while overestimate average degree and density of the original networks. Techniques without subgraph induction step exhibit exactly the opposite behavior. Hence, the pe...

  8. ADVANCED RADIOISOTOPE HEAT SOURCE AND PROPULSION SYSTEMS FOR PLANETARY EXPLORATION

    SciTech Connect (OSTI)

    R. C. O'Brien; S. D. Howe; J. E. Werner

    2010-09-01

    The exploration of planetary surfaces and atmospheres may be enhanced by increasing the range and mobility of a science platform. Fundamentally, power production and availability of resources are limiting factors that must be considered for all science and exploration missions. A novel power and propulsion system is considered and discussed with reference to a long-range Mars surface exploration mission with in-situ resource utilization. Significance to applications such as sample return missions is also considered. Key material selections for radioisotope encapsulation techniques are presented.

  9. Stargate: Energy Management Techniques

    E-Print Network [OSTI]

    Vijay Raghunathan; Mani Srivastava; Trevor Pering; Roy Want

    2004-01-01

    Stargate: Energy Management Techniques Vijay Raghunathan,Platform specific energy management is crucial for longSolution: System level energy management techniques and

  10. Geophysical Prospecting, 2015 doi: 10.1111/1365-2478.12211 Geomechanical property estimation of unconventional reservoirs using

    E-Print Network [OSTI]

    Chen, Jinsong

    Geophysical Prospecting, 2015 doi: 10.1111/1365-2478.12211 Geomechanical property estimation rock property for the geomechanical response of unconventional reservoir fracking) is demonstrated

  11. Surface space : digital manufacturing techniques and emergent building material

    E-Print Network [OSTI]

    Ho, Joseph Chi-Chen, 1975-

    2002-01-01

    This thesis explores tectonic possibilities of new material and forming techniques. The design process is catalyzed by experimenting different configurations of the material.This project attempts to develop inventive ways ...

  12. Spectral estimation on a sphere in geophysics and cosmology

    E-Print Network [OSTI]

    F. A. Dahlen; Frederik J Simons

    2007-05-22

    We address the problem of estimating the spherical-harmonic power spectrum of a statistically isotropic scalar signal from noise-contaminated data on a region of the unit sphere. Three different methods of spectral estimation are considered: (i) the spherical analogue of the one-dimensional (1-D) periodogram, (ii) the maximum likelihood method, and (iii) a spherical analogue of the 1-D multitaper method. The periodogram exhibits strong spectral leakage, especially for small regions of area $A\\ll 4\\pi$, and is generally unsuitable for spherical spectral analysis applications, just as it is in 1-D. The maximum likelihood method is particularly useful in the case of nearly-whole-sphere coverage, $A\\approx 4\\pi$, and has been widely used in cosmology to estimate the spectrum of the cosmic microwave background radiation from spacecraft observations. The spherical multitaper method affords easy control over the fundamental trade-off between spectral resolution and variance, and is easily implemented regardless of the region size, requiring neither non-linear iteration nor large-scale matrix inversion. As a result, the method is ideally suited for most applications in geophysics, geodesy or planetary science, where the objective is to obtain a spatially localized estimate of the spectrum of a signal from noisy data within a pre-selected and typically small region.

  13. Environmental geophysics at Beach Point, Aberdeen Proving Ground, Maryland

    SciTech Connect (OSTI)

    McGinnis, L.D.; Daudt, C.R.; Thompson, M.D.; Miller, S.F.; Mandell, W.A.; Wrobel, J.

    1994-07-01

    Geophysical studies at Beach Point Peninsula, in the Edgewood area of Aberdeen Proving Ground, Maryland, provide diagnostic signatures of the hydrogeologic framework and possible contaminant pathways. These studies permit construction of the most reasonable scenario linking dense, nonaqueous-phase liquid contaminants introduced at the surface with their pathway through the surficial aquifer. Subsurface geology and contaminant presence were identified by drilling, outcrop mapping, and groundwater sampling and analyses. Suspected sources of near-surface contaminants were defined by magnetic and conductivity measurements. Negative conductivity anomalies may be associated with unlined trenches. Positive magnetic and conductivity anomalies outline suspected tanks and pipes. The anomalies of greatest concern are those spatially associated with a concrete slab that formerly supported a mobile clothing impregnating plant. Resistivity and conductivity profiling and depth soundings were used to identify an electrical anomaly extending through the surficial aquifer to the basal pleistocene unconformity, which was mapped by using seismic reflection methods. The anomaly may be representative of a contaminant plume connected to surficial sources. Major activities in the area included liquid rocket fuel tests, rocket fuel fire suppression tests, pyrotechnic material and smoke generator tests, and the use of solvents at a mobile clothing impregnating plant.

  14. Radioisotopes: Energy for Space Exploration

    SciTech Connect (OSTI)

    Carpenter, Bob; Green, James; Bechtel, Ryan

    2011-01-01

    Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration.

  15. Radioisotopes: Energy for Space Exploration

    ScienceCinema (OSTI)

    Carpenter, Bob; Green, James; Bechtel, Ryan

    2013-05-29

    Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration.

  16. AIR INFILTRATION MEASUREMENT TECHNIQUES

    E-Print Network [OSTI]

    Sherman, M.H.

    2013-01-01

    serious study of research problems in infiltration. THEORYInfiltration Measurement Techniques REFERENCES J .B. Dick, "Experimental Studies

  17. EXPLORER: A Natural Language Processing System for Oil Exploration

    E-Print Network [OSTI]

    EXPLORER: A Natural Language Processing System for Oil Exploration Wendy G. Lehnert Department", whereas the second time "show" is used it has a technical meaning (i.e., an indicator of oil or gas and Sbwartz, 1982; Shwartz 1982) is a non-fragile, 'bands-on" language analysis system that allows oil

  18. Geothermal Resources Exploration And Assessment Around The Cove...

    Open Energy Info (EERE)

    collected various geophysical data around the geothermal field, including heat flow, gravity, MT, seismic surface wave phase and group velocity maps, seismic body wave travel...

  19. Exploring the Summary of Proceedings

    E-Print Network [OSTI]

    McShea, Daniel W.

    , and installed." The move to the cloud is inevitable, so responsibility for security is going to shift from usersCyber Security: Exploring the Human Element Summary of Proceedings #12;1 Cyber Security: Exploring the Human Element Institute of Homeland Security Solutions March 8, 2011--National Press Club Introduction

  20. Exploring Genome Rearrangements using Virtual Hybridization Mahdi Belcaid1

    E-Print Network [OSTI]

    Chauve, Cedric

    Exploring Genome Rearrangements using Virtual Hybridization Mahdi Belcaid1 , Anne Bergeron1 , Annie genomes. Other techniques: Chromosome painting, hybridization with probes: long and onerous; Gene detection on well-annotated genomes: problems of orthologous gene identification; BLAST on raw sequences cut

  1. Integration & Co-development of a Geophysical CO2 Monitoring Suite

    SciTech Connect (OSTI)

    Friedmann, S J

    2007-07-24

    Carbon capture and sequestration (CCS) has emerged as a key technology for dramatic short-term reduction in greenhouse gas emissions in particular from large stationary. A key challenge in this arena is the monitoring and verification (M&V) of CO2 plumes in the deep subsurface. Towards that end, we have developed a tool that can simultaneously invert multiple sub-surface data sets to constrain the location, geometry, and saturation of subsurface CO2 plumes. We have focused on a suite of unconventional geophysical approaches that measure changes in electrical properties (electrical resistance tomography, electromagnetic induction tomography) and bulk crustal deformation (til-meters). We had also used constraints of the geology as rendered in a shared earth model (ShEM) and of the injection (e.g., total injected CO{sub 2}). We describe a stochastic inversion method for mapping subsurface regions where CO{sub 2} saturation is changing. The technique combines prior information with measurements of injected CO{sub 2} volume, reservoir deformation and electrical resistivity. Bayesian inference and a Metropolis simulation algorithm form the basis for this approach. The method can (a) jointly reconstruct disparate data types such as surface or subsurface tilt, electrical resistivity, and injected CO{sub 2} volume measurements, (b) provide quantitative measures of the result uncertainty, (c) identify competing models when the available data are insufficient to definitively identify a single optimal model and (d) rank the alternative models based on how well they fit available data. We present results from general simulations of a hypothetical case derived from a real site. We also apply the technique to a field in Wyoming, where measurements collected during CO{sub 2} injection for enhanced oil recovery serve to illustrate the method's performance. The stochastic inversions provide estimates of the most probable location, shape, volume of the plume and most likely CO{sub 2} saturation. The results suggest that the method can reconstruct data with poor signal to noise ratio and use hard constraints available from many sites and applications. External interest in the approach and method is high, and already commercial and DOE entities have requested technical work using the newly developed methodology for CO{sub 2} monitoring.

  2. Analysis of snow in the 20th and 21st century Geophysical Fluid Dynamics Laboratory coupled climate model simulations

    E-Print Network [OSTI]

    Dery, Stephen

    Analysis of snow in the 20th and 21st century Geophysical Fluid Dynamics Laboratory coupled climate Northern Hemisphere, North American, and Eurasian snow cover extent, frequency, and mass by the Geophysical cycle in Northern Hemisphere snow cover extent and produce a mean annual snow area of 25 ¬ 106 km2

  3. Mechanical action and Geophysical reaction: Equipment Oil sand Interactions (Originally presented at CAMI, September 8 10, 2003, Calgary, Alberta)

    E-Print Network [OSTI]

    Joseph, Tim Grain

    at CAMI, September 8 ≠ 10, 2003, Calgary, Alberta) Tim Grain Joseph, Ph.D., P.Eng., Asst. Professor, Mining, University of Alberta & Principal Engineer, JPi Ltd. and Marek Welz, B.Sc., Geophysical Field Manager & Graduate Student, Geophysics, University of Alberta. ABSTRACT Joseph (2002) and Joseph

  4. Collaborative Research: hydrogeological-geophysical methods for subsurface site characterization. 1998 annual progress report

    SciTech Connect (OSTI)

    Mavko, G. [Stanford Univ., CA (US); Rubin, Y.N. [Univ. of California, Berkeley, CA (US)

    1998-06-01

    'The general purpose is the subsurface characterization of LLNL superfund site. The goal is to get the most accurate map of the hydrogeological parameters, necessary for modeling and designing the cleanup efforts at the site, using well log data and remote sensing geophysical techniques. In the second year of the project progress has been made in several areas: gathering and interpreting Vertical Seismic Profile (VSP) and Electromagnetic (EM) surveys; investigating the impact of various seismic measurements on upscaling of rock physics relations between sediment properties; and developing a new approach to integrate geophysical and hydrological data using state of the art methods to characterize the subsurface lithology. Vertical Seismic Profile data has been gathered from selected wells at the Treatment Facility D (TFD) during April 1996 and April 1998. The most striking finding here is the detection of anomalies related to saturation conditions. Preliminary results have revealed three anomalously low acoustic velocity zones with velocities below 1,000 m/s; this is lower than the natural acoustic velocity in saturated media by pure water (1,500 m/s). These three zones appear to be associated with HSUs 3a, 3b and 5. Velocities below 600 m/s have been revealed in the 3a and 3b HSUs (http://www.ce.Berkeley.edu/{approximately}ezzedine/DOE/paul.html). The authors believe that these anomalies are indicative of partial saturation. This explanation is supported by the water samples taken from pumping stations near the VSP well sites which appears to contain air bubbles. A gas analysis of water samples has not yet been performed. The authors hypothesize that this gas can be either air being sucked-in from the vadose zone above the water table, or from some chemical reaction. As a matter of fact, the natural water table level at this site was around 20 m below ground surface before any large scale pumping began, and had dropped to 25.5 m, in April 98. Furthermore, some of these low velocity zones are occurring not only in the major free-flowing sand or gravel parts of the HSU, but in boundary layers of silty sand either above or below the main HSU conductor. An electromagnetic survey was conducted at the site during June 4--25, 1997, and they worked on its interpretation. Seven cross well EM data sets were collected. Both 1D and 2D simulations, approximating the actual site and survey setup, were conducted. The 1D simulations were conducted using the code EM1D for one data set. Newman and Alumbaugh''s 3D forward code was used to simulate the response of both a resistive layer (representing HSU 4) and a conductive layer at the same location. Three separate inversion algorithms were applied to the data: Newman and Alumbaugh''s 2.5D finite difference and integral solution algorithm, Alumbaugh''s iterative Born approximation with a cylindrical symmetry, and Tseng''s 3D extended born approximation. The field EM data are still being analyzed.'

  5. Archaeological investigations using geophysics at Chimney Rock Great House, Colorado Michael A. Mitchell, Sarah G.R. Devriese, Roxanna N. Frary, Richard A. Krahenbuhl, Brenda K. Todd,

    E-Print Network [OSTI]

    Archaeological investigations using geophysics at Chimney Rock Great House, Colorado Michael A of Geophysics, Colorado School of Mines Department of Anthropology, University of Colorado, Boulder SUMMARY In this talk, we present results from a geophysical investiga- tion at the Chimney Rock Great House using

  6. Inverse Modeling and Geostatistics Project 17/04/2008DTU Geophysics research group meeting -2010-05-052 DTU Informatics, Technical University of Denmark

    E-Print Network [OSTI]

    Mosegaard, Klaus

    Inverse Modeling and Geostatistics Project #12;17/04/2008DTU Geophysics research group meeting Geophysics research group meeting - 2010-05-053 DTU Informatics, Technical University of Denmark Bayesian PROBLEM? #12;17/04/2008DTU Geophysics research group meeting - 2010-05-054 DTU Informatics, Technical

  7. The Institute of Geophysics, Planetary Physics and Signatures (IGPPS) at Los Alamos National Laboratory (LANL) is one of the Los Alamos National Laboratory science

    E-Print Network [OSTI]

    The Institute of Geophysics, Planetary Physics and Signatures (IGPPS) at Los Alamos National: ∑ Geophysics ∑ Global Climate ∑ Space Science ∑ Astrophysics and Cosmology FY15 CALL FOR RESEARCH PROPOSALS and quality of life in our increasingly technological society. 3. Solid earth geoscience (geophysics

  8. CorrelationF unctions of Random Media Summary ---In geophysics, the correlation functions of random media are of principal importance for

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    CorrelationF unctions of Random Media LUDE Ňł K KLIMES Ňł 1 Summary --- In geophysics, in a simple general form enabling the random media used in geophysics to be specified. The medium correlation.g., SHAPIRO and KNEIB, 1993; SHAPIRO et al., 1996; MU ň? LLER and SHAPIRO, 2001). 1 Department of Geophysics

  9. Student-based archaeological geophysics in northern Thailand Emily A. Hinz*, Lee M. Liberty, and Spencer H. Wood, Boise State University, Fongsaward Singharajawarapan

    E-Print Network [OSTI]

    Barrash, Warren

    Student-based archaeological geophysics in northern Thailand Emily A. Hinz*, Lee M. Liberty of Western Australia Summary As part of the 2010 near-surface geophysics workshop in Chiang Mai, Thailand, local archaeological targets were used as a basis for teaching geophysical data collection, processing

  10. Inverse Modeling and Geostatistics Project 17/04/2008DTU Geophysics research group meeting -2010-09-102 DTU Informatics, Technical University of Denmark

    E-Print Network [OSTI]

    Mosegaard, Klaus

    Inverse Modeling and Geostatistics Project #12;17/04/2008DTU Geophysics research group meetingModelingandGeostatisticsProject #12;17/04/2008DTU Geophysics research group meeting - 2010-09-103 DTU Informatics, Technical #12;17/04/2008DTU Geophysics research group meeting - 2010-09-105 DTU Informatics, Technical

  11. Department of Geology and Geophysics-Frederick A. Sutton Building 115 South 1460 East, Room 383, Salt Lake City, Utah 84112-0102

    E-Print Network [OSTI]

    Johnson, Cari

    Department of Geology and Geophysics- Frederick A. Sutton Building to The University of Utah Department of Geology and Geophysics Donor's Information, to the Department of Geology and Geophysics of the University of Utah as an unrestricted gift. Fill out and sign

  12. Assessor Training Assessment Techniques

    E-Print Network [OSTI]

    NVLAP Assessor Training Assessment Techniques: Communication Skills and Conducting an Assessment listener ∑Knowledgeable Assessor Training 2009: Assessment Techniques: Communication Skills & Conducting, truthful, sincere, discrete ∑ Diplomatic ∑ Decisive ∑ Selfreliant Assessor Training 2009: Assessment

  13. SFU Library Ask. Explore. Discover.

    E-Print Network [OSTI]

    SFU Library Ask. Explore. Discover. SFU Library Annual Report 2007-08 #12;SFU Library Annual Report..................................................................................................... 8 WAC BENNETT LIBRARY................................................................................... 9 SAMUEL AND FRANCES BELZBERG LIBRARY............................................... 10 FRASER

  14. Edinburgh Research Explorer Statistical Constraints

    E-Print Network [OSTI]

    Millar, Andrew J.

    Edinburgh Research Explorer Statistical Constraints Citation for published version: Rossi, R that links statistics and constraint programming. We dis- cuss two novel statistical constraints and some, Prestwich, S & Tarim, SA 2014, 'Statistical Constraints' Paper presented at 21st biennial European

  15. Exploration for basal Silurian reservoirs in western Illinois

    SciTech Connect (OSTI)

    Whitaker, S.T.; Howard, R.H.

    1995-07-31

    The discovery of two oil fields, Kellerville and Siloam, in shallow (600--675 ft deep) basal Silurian carbonates in 1958 and 1959 respectively, was the first new production in western Illinois since the discovery of the Devonian Hoing sandstone at Colmar-Plymouth field in 1914. A second, and more major, drilling boom in western Illinois resulted from official recognition in 1982 of a significant oil discovery in basal Silurian rocks at Buckhorn East oil field, later Buckhorn Consolidated. Within a relatively short time, numerous rigs were moving into western Illinois in the hopes of repeating the successes experienced at Buckhorn East. Unfortunately, there was no adequate geologic model that explained the oil accumulations in western Illinois. Basal Silurian reservoirs in western Illinois developed due to dolomitization of carbonate that filled shallow valleys incised in the underlying Maquoketa shale. Exploration for these reservoirs should utilize all of the clues that are presented here. It will be critical to continue gathering data from the area via quality wireline logs, cores, samples, and geophysical studies. It is unlikely that the Buckhorn-Siloam-Kellerville complex is unique in western Illinois.

  16. Regional geophysics, Cenozoic tectonics and geologic resources of the Basin

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/WaterEnergyRedfield1989) JumpLiterature Review |Growthand

  17. Charles A. Stock Research Oceanographer, NOAA/Geophysical Fluid Dynamics Laboratory

    E-Print Network [OSTI]

    Berkeley and Princeton University 2005 Postdoctoral Investigator, Woods Hole Oceanographic Institution 1998-1999 2013-present Member of Research Council at the Geophysical Fluid Dynamics Laboratory 2013 Steering of the Northeast Shelf Large Marine Ecosystem: Key Research Needs and Future Directions", July 2013, Providence RI

  18. Gaussian packet prestack depth migration Department of Geophysics, Faculty of Mathematics and Physics, Charles University,

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Gaussian packet prestack depth migration Karel #20; Z#19;a#20;cek Department of Geophysics, Faculty depth migration. The main advantage of our method over the methods based on Gaussian beams is a direct. Thus, the Gaussian packet prestack depth migration is especially suitable for a target-oriented imaging

  19. Adaptive Focusing Through Layered Media Using the Geophysical "Time Migration" Concept

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    Adaptive Focusing Through Layered Media Using the Geophysical "Time Migration" Concept Mark A. Haun migration. This tech- nique is motivated by considering complete, bistatic, pulse- echo data acquired from layered media, where sound speed is a function of depth only. Reflection travel times as a func- tion

  20. Gaussian packet pre--stack depth migration the Marmousi data Karel Zacek*, Department Geophysics, Faculty

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Gaussian packet pre--stack depth migration the Marmousi data Karel Zacek*, Department Geophysics--stack depth migration. method on Marmousi data (Versteeg & 1991). advantage over methods Gaussian beams. Thus, Gaussian packet pre--stack depth migration is especially suitable target--oriented imaging

  1. Carbon Sequestration and Its Role in the Global Carbon Cycle Geophysical Monograph Series 183

    E-Print Network [OSTI]

    Pennycook, Steve

    73 Carbon Sequestration and Its Role in the Global Carbon Cycle Geophysical Monograph Series 183. Blaine Metting2 The purpose of this chapter is to review terrestrial biological carbon sequestration Northwest National Laboratory, Richland, Washington, USA. #12;74 TERRESTRIAL BIOLOGICAL CARBON SEqUESTRATION

  2. Discrimination and Identification of UXO by Geophysical Inversion. Phase II: Inversion of Total-Field Magnetics

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    Discrimination and Identification of UXO by Geophysical Inversion. Phase II: Inversion of Total to the discrimination and identification of unexploded ordnance using total-field magnetometry. A black in a predefined library. The discrimination method had the potential to reduce the number of excavations

  3. Department of Geology and Geophysics, University of Utah Spring 2002 down to earth

    E-Print Network [OSTI]

    Johnson, Cari

    1 Department of Geology and Geophysics, University of Utah Spring 2002 down to earth Message From of Bill Parry and Duke Picard resulted in openings in both Geological Engineer- ing and Sedimentary Geology. Our search for their replacements has been successful and we are once again at full strength

  4. Geology and Geophysics 303: Structural Geology Fall Semester, 2015, 3.0 Units

    E-Print Network [OSTI]

    Geology and Geophysics 303: Structural Geology Fall Semester, 2015, 3.0 Units Lectures: MW 10 Geology: An Introduction, by Pollard and Martel (PM) Basic Methods of Structural Geology, by Marshak geologic structures depends largely on how we perceive them. Few geologic structures form by trivially

  5. Tuesday, March 24, 2009 POSTER SESSION I: ICY SATELLITES: GELID GEOLOGY/GEOPHYSICS

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Tuesday, March 24, 2009 POSTER SESSION I: ICY SATELLITES: GELID GEOLOGY/GEOPHYSICS 6:30 p.m. Town of recent tectonic activity on Europa logically starts with the geologically young, ridgeless surface Lunar and Planetary Science Conference (2009) full331.pdf #12;El Maarry M. R. Sierks H. Geological

  6. Tuesday, March 24, 2009 POSTER SESSION I: VENUS GEOLOGY, GEOPHYSICS, MAPPING, AND SAMPLING

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Tuesday, March 24, 2009 POSTER SESSION I: VENUS GEOLOGY, GEOPHYSICS, MAPPING, AND SAMPLING 6:30 p significantly during the observable portion of the geologic history from the catastrophic resurfacing to the equilibrium resurfacing. Ivanov M. A. Head J. W. Geological Mapping of the Fortuna Tessera Quadrangle (V-2

  7. Electrical properties of saline ices and ice-silicate mixtures: geophysical and astrobiological consequences (Invited)

    E-Print Network [OSTI]

    Stillman, David E.

    MR22A-05 Electrical properties of saline ices and ice-silicate mixtures: geophysical) electrical-properties measurements of laboratory- produced saline ice, salt hydrates, and ice of interior properties, and habitability. The electrical properties of saline H2O are controlled by the binary

  8. From: Advances in Geophysics, 46, 81-197. 1 SEISMIC TRAVELTIME TOMOGRAPHY OF THE

    E-Print Network [OSTI]

    Rawlinson, Nick

    to describe a similar process using seismic waves to map earth structure. Seismologists now routinely useFrom: Advances in Geophysics, 46, 81-197. 1 SEISMIC TRAVELTIME TOMOGRAPHY OF THE CRUST, Canberra ACT 0200, Australia 1 Introduction 1.1 Motivation Seismic data represent one of the most valuable

  9. Reactive facies: An approach for parameterizing field-scale reactive transport models using geophysical methods

    E-Print Network [OSTI]

    Chen, Jinsong

    as pumping, slug and flowmeter tests) are commonly used to measure hydraulic conductivity in the vicinity is based on the hypothesis that subsurface units exist that have unique distributions of properties, hydraulic conductivity, and geophysical attributes. We use these correlations within a Bayesian framework

  10. Geophysically consistent values of the perovskite to post-perovskite transition Clapeyron slope

    E-Print Network [OSTI]

    Geophysically consistent values of the perovskite to post-perovskite transition Clapeyron slope J February 2007; published 15 March 2007. [1] The double-crossing hypothesis posits that post- perovskite in Earth's deep mantle and the temperature of Earth's inner core boundary, we show that a post-perovskite

  11. GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Hygroscopic Properties of Volcanic Ash

    E-Print Network [OSTI]

    Nenes, Athanasios

    GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Hygroscopic Properties of Volcanic Ash observational data exists on the physical interac- tions between volcanic ash particles and water vapor; yet it is thought that these interactions can strongly impact the microphysical evolution of ash, with implications

  12. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Interferometric electromagnetic Green's functions

    E-Print Network [OSTI]

    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Interferometric electromagnetic of a direct pulse-echo ex- periment in a three-dimensional configuration. The con- dition-dimensional media. Wave propagation invariants have been used in acoustic, elastic and electromagnetic wave

  13. GEOPHYSICS, VOL. 64, NO. 5 (SEPTEMBER-OCTOBER 1999); P. 13471348 Computers and creativity

    E-Print Network [OSTI]

    Snieder, Roel

    GEOPHYSICS, VOL. 64, NO. 5 (SEPTEMBER-OCTOBER 1999); P. 1347≠1348 Computers and creativity John A. Scales and Roel Snieder "The real danger is not that computers will begin to think like men, but that men will begin to think like computers."--Sydney J. Harris "Technical skill is mastery of complexity while

  14. USING GEOPHYSICAL METHODS TO IMAGE THE INTERNAL STRUCTURE OF MINE WASTE ROCK PILES

    E-Print Network [OSTI]

    Aubertin, Michel

    (GPR) geophysical methods have been used to study mine dumps. METHODS Resistivity measurements, at the same time as an infiltration test was carried out in order to map fluid flow within the mine dump out in July 2002, and in October 2002 before and after the infiltration test. Figure 3 shows a GPR

  15. 1340 The Leading Edge October 2008 SAGE celebrates 25 years of learning geophysics by

    E-Print Network [OSTI]

    geophysics The increasing world demand and record-high costs for energy and mineral resources, along with the attendant environmental and climate concerns, have escalated the need for trained geophysicists then are closely guided by faculty, teaching assistants, and in- dustry visitors to analyze and interpret

  16. Augmented Geophysical Data Interpretation Through Automated Velocity Picking in Semblance Velocity Images

    E-Print Network [OSTI]

    Whitley, Darrell

    Augmented Geophysical Data Interpretation Through Automated Velocity Picking in Semblance Velocity on the surface. Currently, geophysicists spend hours, days or weeks in front of monitors tracing curves on images of these cor- respond to the bright spots selected by the geophysicist. Next, a combinatorial optimization

  17. College of Natural Science and Mathematics Department of Geology and Geophysics

    E-Print Network [OSTI]

    Hartman, Chris

    gEology College of Natural Science and Mathematics Department of Geology and Geophysics 907-474-7565 www.uaf.edu/geology/ MS, phD Degrees Minimum Requirements for Degrees: MS: 30 credits; PhD: 18 thesis credits Graduates in geology have broad backgrounds in the earth sciences and firm foundations

  18. College of Natural Science and Mathematics Department of Geology and Geophysics

    E-Print Network [OSTI]

    Hartman, Chris

    geoscience College of Natural Science and Mathematics Department of Geology and Geophysics 907-474-7565 www.uaf.edu/geology/ Bs Degree Minimum Requirements for Degree: 120 credits Graduates in geoscience. Four con- centrations are available to allow students to pursue their own emphasis: geology

  19. Major results of geophysical investigations at Yucca Mountain and vicinity, southern Nevada

    SciTech Connect (OSTI)

    Oliver, H.W.; Ponce, D.A. [eds.] [Geological Survey, Menlo Park, CA (United States); Hunter, W.C. [ed.] [Geological Survey, Denver, CO (United States). Yucca Mountain Project Branch

    1995-12-31

    In the consideration of Yucca Mountain as a possible site for storing high level nuclear waste, a number of geologic concerns have been suggested for study by the National Academy of Sciences which include: (1) natural geologic and geochemical barriers, (2) possible future fluctuations in the water table that might flood a mined underground repository, (3) tectonic stability, and (4) considerations of shaking such as might be caused by nearby earthquakes or possible volcanic eruptions. This volume represents the third part of an overall plan of geophysical investigation of Yucca Mountain, preceded by the Site Characterization Plan (SCP; dated 1988) and the report referred to as the Geophysical White Paper, Phase 1, entitled Status of Data, Major Results, and Plans for Geophysical Activities, Yucca Mountain Project (Oliver and others, 1990). The SCP necessarily contained uncertainty about applicability and accuracy of methods then untried in the Yucca Mountain volcano-tectonic setting, and the White Paper, Phase 1, focused on summarization of survey coverage, data quality, and applicability of results. For the most part, it did not present data or interpretation. The important distinction of the current volume lies in presentation of data, results, and interpretations of selected geophysical methods used in characterization activities at Yucca Mountain. Chapters are included on the following: gravity investigations; magnetic investigations; regional magnetotelluric investigations; seismic refraction investigations; seismic reflection investigations; teleseismic investigations; regional thermal setting; stress measurements; and integration of methods and conclusions. 8 refs., 60 figs., 2 tabs.

  20. Geophysical Prospecting 37,753-770, 1989 SUGGESTIONS FOR A CONSISTENT

    E-Print Network [OSTI]

    Edinburgh, University of

    Geophysical Prospecting 37,753-770, 1989 SUGGESTIONS FOR A CONSISTENT TERMINOLOGY FOR SEISMIC for seismic anisotropy. Geophys- ical Prospecting 37,753-770. Seismic anisotropy is an unfamiliar concept reporting seismic anisotropy more readily comprehensible to the non- specialist. This not a manual

  1. The natural history of telomeres: tools for aging animals and exploring the aging process

    E-Print Network [OSTI]

    Vleck, Carol

    The natural history of telomeres: tools for aging animals and exploring the aging process Carol M, IA 50014, USA Abstract We have been exploring the use of telomere length as a technique to age animals. If telomere restriction fragments (TRFs) shorten predictably with age in a particular tissue

  2. New stratigraphic technologies in exploration/exploitation

    SciTech Connect (OSTI)

    Scott, R.W.; Lane, H.R.

    1995-09-01

    With the demand for increased accuracy and precision in the interpretation of seismic sections for the prediction of reservoirs and traps, traditional paleontologic and new non-paleontologic stratigraphic data have assumed a greater role in exploration/exploitation. Strata bounded by sequence boundaries can be dated have assumed a greater role in exploration/exploitation. Strata bounded by sequence boundaries can be dated precisely by the graphic correlation technique. For example, Arabian Cretaceous reservoirs pinch out by facies change and diagenesis into coeval strata. But Pliocene sands in the Gulf Coast are truncated by regional unconformities accentuated by salt dome movement. In this Plio-Pleistocene section high precision chronostratigraphy is achieved by the integration of paleontological and geochemical data. Detailed biostratigraphic analysis of many sections of Mississippian carbonates along the eastern side of the Transcontinental Arch allows for the recognition of four unconformity-bounded units (biothems of Lane and others, 1994). These biotherms have been traced form Illinois to New Mexico and are not easily detected in the subsurface by using seismic or electric log technology because of the rather uniform carbonate lithologies composing the entire Mississippian in the region. Mississippian hydrocarbon production in western Kansas can be shown to be associated with these intra-Mississippian carbonate-on-carbonate unconformities that are easily detected biostratigraphically.

  3. Geophysical Research Abstracts Vol. 14, EGU2012-11103, 2012

    E-Print Network [OSTI]

    Sůbester, AndrŠs

    - spheric balloon system. The `vehicle' for the latter was built on a 3D printer using a copolymer techniques, coupled with computer-controlled additive manufacturing (3D printing) and laser cutting methods to approximate space-filling curves that maximize sampling efficiency (a 3D `travelling salesman'-type calculus

  4. GGHAWKERHAWKER Geology and Geophysics at The University of Kansas

    E-Print Network [OSTI]

    in the geosciences. There are large numbers of excellent G-Hawks out there in the oil and gas industry, environmental to be more and more widely spread across campus at the same time that our offices and labs are compressed in the practical exploitation of oil shales, and employs unique techniques to understanding microbial and algal

  5. FTN4 OPTIMIZATION TECHNIQUES.

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    3 1st Edition FTN4 OPTIMIZATION TECHNIQUES November 1979O. INTRODUCTION 1. COt1PILER OPTIMIZATIONS 2. SOURCE CODEcode. Most of these optimizations decrease central processor

  6. NORTHERN NEVADA GEOTHERMAL EXPLORATION STRATEGY ANALYSIS

    E-Print Network [OSTI]

    Goldstein, N.E.

    2011-01-01

    seismic in the mandatory portion of the detail phase exploration.seismic and temperature gradient/heat-flow drilling constitute the mandatory portion of the detail phase exploration (exploration costs estimated by Ward far more than the structure. Active seismic (

  7. Merging High Resolution Geophysical and Geochemical Surveys to Reduce

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland: Energy Resources Jump1.2619821¬į,Energy Information| Open EnergyExploration

  8. Contamination Control Techniques

    SciTech Connect (OSTI)

    EBY, J.L.

    2000-05-16

    Welcome to a workshop on contamination Control techniques. This work shop is designed for about two hours. Attendee participation is encouraged during the workshop. We will address different topics within contamination control techniques; present processes, products and equipment used here at Hanford and then open the floor to you, the attendees for your input on the topics.

  9. Innovative Computational Tools for Reducing Exploration Risk...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Computational Tools for Reducing Exploration Risk Through Integration of Water-Rock Interactions and Magnetotelluric Surveys Innovative Computational Tools for Reducing Exploration...

  10. Exploring the Business Link Opportunity: Transmission & Clean...

    Office of Environmental Management (EM)

    Exploring the Business Link Opportunity: Transmission & Clean Energy Development in the West Exploring the Business Link Opportunity: Transmission & Clean Energy Development in the...

  11. Hydrothermal Exploration Best Practices and Geothermal Knowledge...

    Open Energy Info (EERE)

    Knowledge Exchange on Openei Abstract Though exploring for hydrothermal resources is not new, advances in exploration technologies and the pursuit of less visible resources have...

  12. Tribal Energy Summit Tackles Challenges, Explores Opportunities...

    Office of Environmental Management (EM)

    Energy Summit Tackles Challenges, Explores Opportunities on Path to Economic Sovereignty Tribal Energy Summit Tackles Challenges, Explores Opportunities on Path to Economic...

  13. Ingenious Women Exploring Creativity, Cash

    E-Print Network [OSTI]

    Obbard, Darren

    Ingenious Women Exploring Creativity, Cash and Control to unlock potential 04-06 Innovative of Higher Education and Edinburgh. Our focus will be on ensuring that IAD provides a space, connections Ingenious Women: an approach to unlocking potential 07 Three Minute Thesis: Case Study 08 Making the Most

  14. Explore Java What Is Java?

    E-Print Network [OSTI]

    Myers, Brad A.

    Explore Java Must Reads What Is Java? Download the Java Development Kit Install the Java SE Development Kit Create Your First Java Program Reserved Words in Java Most Popular Free Java Newsletter! By Category Enter email address Getting Started Programming Concepts Tutorials Java Syntax Building

  15. Climate Modeling: A Brief Exploration

    E-Print Network [OSTI]

    Blais, Brian

    Climate Modeling: A Brief Exploration Dr Hong Yang Dr Qin Leng Collin Gagnon April 9, 2014 Dr Brian;Exponential Model Gaussian Model #12;Oscillation Model Ecological Modelling 171 (2004) 433≠450 Climate change; accepted 13 August 2003 Abstract Two questions about climate change remain open: detection and attribution

  16. Rapidly-Exploring Roadmaps: Weighing Exploration vs. Refinement in Optimal Motion Planning

    E-Print Network [OSTI]

    Patil, Sachin

    Rapidly-Exploring Roadmaps: Weighing Exploration vs. Refinement in Optimal Motion Planning Ron of already explored regions to find better paths. We present the rapidly- exploring roadmap (RRM), a new to explore further or to refine the explored space by adding edges to the current roadmap to find higher

  17. On Optimizing Joint Inversion of Constrained Geophysical Datasets Anibal Sosa1 Leticia Velazquez1;2, Aaron Velasco3,

    E-Print Network [OSTI]

    Ward, Karen

    of Texas at El Paso, El Paso, Texas 79968-0514, USA 3Department of Geological Sciences, The University) algorithm to characterize 1D earth structure using geophysical datasets with two different optimization

  18. GEOPHYSICS, VOL. 67, NO. 4 (JULY-AUGUST 2002); P. 11041114, 11 FIGS., 1 TABLE. 10.1190/1.1500371

    E-Print Network [OSTI]

    Newman, Gregory A.

    Laboratories, Geophysical Technology Department, P.O. Box 5800, MS-0750, Albuquerque, New Mexico 87185-0750. E this mechanism, Klein et al. (1997) show that the high-conductivity contrast between shales and sands results

  19. Modeling the resolution of inexpensive, novel non-seismic geophysical monitoring tools to monitor CO2 injection into coal beds

    E-Print Network [OSTI]

    Gasperikova, E.

    2010-01-01

    on the geophysical properties of coal undergoing CO 2 flood.coal layer, at the depth of 750 m, with the same lateral extent and propertiescoal zones (~300 tons to each zone). A literature search for rock properties

  20. Geophysical Journal International Geophys. J. Int. (2015) 200, 888907 doi: 10.1093/gji/ggu436

    E-Print Network [OSTI]

    2015-01-01

    Faculty of Mathematics, Physics and Informatics, Comenius University Bratislava, Mlynska dolina F1, 842 48 and Engineering, KAUST, Thuwal 23955-6900, Saudi Arabia. E-mail: martin.galis@kaust.edu.sa 2Geophysics Section

  1. Geophysical Journal International Geophys. J. Int. (2015) 202, 787799 doi: 10.1093/gji/ggv183

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    2015-01-01

    in Bratislava, Mlynskīa dolina F1, 84248 Bratislava, Slovakia 3Institute of Geophysics, Academy of Sciences & Engineering, Barcelona Supercomputing Centre, Carrer del Gran Capitīa 2-4, Barcelona, Spain Accepted 2015

  2. Geophysical Journal International Geophys. J. Int. (2014) 199, 18471860 doi: 10.1093/gji/ggu370

    E-Print Network [OSTI]

    Constable, Steve

    2014-01-01

    Geophysical Journal International Geophys. J. Int. (2014) 199, 1847≠1860 doi: 10.1093/gji/ggu370-linear electromagnetics; Marine electromagnetics; Australia. 1 I N T RO D U C T I O N The marine controlled source

  3. Structure of the southern Keweenawan rift from COCORP surveys across the Midcontinent Geophysical Anomaly in northeastern Kansas

    E-Print Network [OSTI]

    Serpa, L.; Setzer, T.; Farmer, H.; Brown, L.; Oliver, J.; Kaufman, S.; Sharp, J.; Steeples, Don W.

    1984-06-01

    COCORP profiling across the midcontinent geophysical anomaly in northeastern Kansas reveals structural basins and other features of the Precambrian Keweenawan rift buried beneath the Phanerozoic cover. The 40-km-wide main basin is asymmetric, with a...

  4. Centauri Dreams Imagining and Planning Interstellar Exploration

    E-Print Network [OSTI]

    Arizona, University of

    and steep terrain to explore them. Airships would be particularly useful in environments like Titan, where

  5. The Design and Evaluation of Selection Techniques for 3D Volumetric Displays

    E-Print Network [OSTI]

    Toronto, University of

    The Design and Evaluation of Selection Techniques for 3D Volumetric Displays Tovi Grossman & Ravin.dgp.toronto.edu ABSTRACT Volumetric displays, which display imagery in true 3D space, are a promising platform and interaction techniques must be designed. In this paper, we explore 3D selection techniques for volumetric

  6. Preclosure Monitoring and Performance Confirmation at Yucca Mountain: Applicability of Geophysical, Geohydrological, and Geochemical Methods

    E-Print Network [OSTI]

    Tsang, C.F.

    2010-01-01

    Seismic Stratigraphy-Applications to Hydrocarbon Exploration,exploration for imaging large scale structures. There have been numerous studies showing that seismic

  7. 35.1 Introduction Flows.involving.phase.change.are.ubiquitous.in.geophysical.and.

    E-Print Network [OSTI]

    Huppert, Herbert

    467 35.1 Introduction Flows.involving.phase.change.are.ubiquitous.in.geophysical.and. industrial.and.atmosphere.but.also.some.that.occur.in.water- saturated.soils,.in.magmatic.systems,.and.in.industrial.processes. 35.2 Principles Changes.of.phase,.from.and.associated.buoyancy.forces..The.importance.of.phase. change.to.a.given.flow.can.be.assessed.by.estimating.certain.key. dimensionless.parameters. 35

  8. SIGMOD 2002 CubeExplorer: Online Exploration of Data Cubes

    E-Print Network [OSTI]

    Dong, Guozhu

    of available cube-based OLAP products, users may still encounter challenges on e#11;ectiveness and e developed techniques, including iceberg cube computation, cube-based feature extraction, and gradient in part by the Natural Sciences and Engineering Research Council of Canada (grant NSERC-A3723

  9. Magnetic field gradients in solar wind plasma and geophysics periods

    E-Print Network [OSTI]

    A. Bershadskii

    2006-11-16

    Using recent data obtained by Advanced Composition Explorer (ACE) the pumping scale of the magnetic field gradients of the solar wind plasma has been calculated. This pumping scale is found to be equal to 24h $\\pm$ 2h. The ACE spacecraft orbits at the L1 libration point which is a point of Earth-Sun gravitational equilibrium about 1.5 million km from Earth. Since the Earth's magnetosphere extends into the vacuum of space from approximately 80 to 60,000 kilometers on the side toward the Sun the pumping scale cannot be a consequence of the 24h-period of the Earth's rotation. Vise versa, a speculation is suggested that for the very long time of the coexistence of Earth and of the solar wind the weak interaction between the solar wind and Earth could lead to stochastic synchronization between the Earth's rotation and the pumping scale of the solar wind magnetic field gradients. This synchronization could transform an original period of the Earth's rotation to the period close to the pumping scale of the solar wind magnetic field gradients.

  10. Reducing Subjectivity in Geothermal Exploration Decision Making (Presentation); NREL(National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Akar, S.; Young, K.

    2015-01-01

    Geothermal exploration projects have a significant amount of risk associated with uncertainties encountered in the discovery of the geothermal resource. Two of the largest challenges for increased geothermal deployment are 1) understanding when and how to proceed in an exploration program, and 2) when to walk away from a site. Current methodologies for exploration decision-making are formulatedby subjective expert opinion which can be incorrectly biased by expertise (e.g. geochemistry, geophysics), geographic location of focus, and the assumed conceptual model. The aim of this project is to develop a methodology for more objective geothermal exploration decision making at a given location, including go/no-go decision points to help developers and investors decide when to give up on alocation. In this scope, two different approaches are investigated: 1) value of information analysis (VOIA) which is used for evaluating and quantifying the value of a data before they are purchased, and 2) enthalpy-based exploration targeting based on reservoir size, temperature gradient estimates, and internal rate of return (IRR). The first approach, VOIA, aims to identify the value of aparticular data when making decisions with an uncertain outcome. This approach targets the pre-drilling phase of exploration. These estimated VOIs are highly affected by the size of the project and still have a high degree of subjectivity in assignment of probabilities. The second approach, exploration targeting, is focused on decision making during the drilling phase. It starts with a basicgeothermal project definition that includes target and minimum required production capacity and initial budgeting for exploration phases. Then, it uses average temperature gradient, reservoir temperature estimates, and production capacity to define targets and go/no-go limits. The decision analysis in this approach is based on achieving a minimum IRR at each phase of the project. This secondapproach was determined to be less subjective, since numerical inputs come from the collected data. And it helps to facilitate communication between project managers and exploration geologists in making objective go/no-go decisions throughout the different project phases.

  11. Detailed Geophysical Fault Characterization in Yucca Flat, Nevada Test Site, Nevada

    SciTech Connect (OSTI)

    Theodore H. Asch; Donald Sweetkind; Bethany L. Burton; Erin L. Wallin

    2009-02-10

    Yucca Flat is a topographic and structural basin in the northeastern part of the Nevada Test Site (NTS) in Nye County, Nevada. Between the years 1951 and 1992, 659 underground nuclear tests took place in Yucca Flat; most were conducted in large, vertical excavations that penetrated alluvium and the underlying Cenozoic volcanic rocks. Radioactive and other potential chemical contaminants at the NTS are the subject of a long-term program of investigation and remediation by the U.S. Department of Energy (DOE), National Nuclear Security Administration, Nevada Site Office, under its Environmental Restoration Program. As part of the program, the DOE seeks to assess the extent of contamination and to evaluate the potential risks to humans and the environment from byproducts of weapons testing. To accomplish this objective, the DOE Environmental Restoration Program is constructing and calibrating a ground-water flow model to predict hydrologic flow in Yucca Flat as part of an effort to quantify the subsurface hydrology of the Nevada Test Site. A necessary part of calibrating and evaluating a model of the flow system is an understanding of the location and characteristics of faults that may influence ground-water flow. In addition, knowledge of fault-zone architecture and physical properties is a fundamental component of the containment of the contamination from underground nuclear tests, should such testing ever resume at the Nevada Test Site. The goal of the present investigation is to develop a detailed understanding of the geometry and physical properties of fault zones in Yucca Flat. This study was designed to investigate faults in greater detail and to characterize fault geometry, the presence of fault splays, and the fault-zone width. Integrated geological and geophysical studies have been designed and implemented to work toward this goal. This report describes the geophysical surveys conducted near two drill holes in Yucca Flat, the data analyses performed, and the integrated interpretations developed from the suite of geophysical methodologies utilized in this investigation. Data collection for this activity started in the spring of 2005 and continued into 2006. A suite of electrical geophysical surveys were run in combination with ground magnetic surveys; these surveys resulted in high-resolution subsurface data that portray subsurface fault geometry at the two sites and have identified structures not readily apparent from surface geologic mapping, potential field geophysical data, or surface effects fracture maps.

  12. Multi-Attribute Tradespace Exploration for Survivability

    E-Print Network [OSTI]

    Ross, Adam Michael

    2013-11-19

    Multi-Attribute Tradespace Exploration for Survivability is a system design and analysis methodology that incorporates survivability considerations into the tradespace exploration process (i.e., a solution-generating and ...

  13. Query Optimization Techniques Class Hierarchies

    E-Print Network [OSTI]

    Mannheim, Universitšt

    Query Optimization Techniques Exploiting Class Hierarchies Sophie Cluet 1 Guido Moerkotte 2 1 INRIA Since the introduction of object base management systems (OBMS), many query optimization techniques tailored for object query languages have been proposed. They adapt known optimization techniques

  14. Design exploration: engaging a larger user population†

    E-Print Network [OSTI]

    Moore, John Michael

    2009-06-02

    xii Page APPENDIX A DESIGN EXPLORATION STOPWORDS ..........................................125 APPENDIX B ANALYZER STUDY TUTORIALS ....................................................126 APPENDIX C ANALYZER STUDY SCENARIOS...

  15. Exploring spatial non-stationarity of fisheries survey data using geographically weighted regression (GWR): an example from the

    E-Print Network [OSTI]

    Fortin, Marie Josee

    . Exploring spatial non-stationarity of fisheries survey data using geographically weighted regression (GWR this assumption using a local modelling technique, geographically weighted regression (GWR), not previously used weighted regression, logistic regression, non-stationarity, Northwest Atlantic, spatial modelling. Received

  16. Geothermal Exploration in Hot Springs, Montana

    SciTech Connect (OSTI)

    Toby McIntosh, Jackola Engineering

    2012-09-26

    The project involves drilling deeper in the Camp Aqua well dri lled in June 1982 as part of an effort to develop an ethanol plant. The purpose of the current drill ing effort is to determine if water at or above 165√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬įF exists for the use in low temperature resource power generation. Previous geothermal resource study efforts in and around Hot Springs , MT and the Camp Aqua area (NE of Hot Springs) have been conducted through the years. A confined gravel aquifer exists in deep alluvium overlain by approximately 250√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬? of si lt and c lay deposits from Glacial Lake Missoula. This gravel aquifer overlies a deeper bedrock aquifer. In the Camp Aqua area several wel l s exist in the gravel aquifer which receives hot water f rom bedrock fractures beneath the area. Prior to this exploration, one known well in the Camp Aqua area penetrated into the bedrock without success in intersecting fractures transporting hot geothermal water. The exploration associated with this project adds to the physical knowledge database of the Camp Aqua area. The dri l l ing effort provides additional subsurface information that can be used to gain a better understanding of the bedrock formation that i s leaking hot geothermal water into an otherwise cold water aquifer. The exi s t ing well used for the explorat ion is located within the √?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?center√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬Ě of the hottest water within the gravel aquifer. This lent i t sel f as a logical and economical location to continue the exploration within the existing well. Faced with budget constraints due to unanticipated costs, changing dril l ing techniques stretched the limited project resources to maximize the overa l l well depth which f e l l short of original project goals. The project goal of finding 165√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬įF or hotter water was not achieved; however the project provides additional information and understanding of the Camp Aqua area that could prove valuable in future exploration efforts

  17. Pervasive UWB Sensor Networks for Oil exploration

    E-Print Network [OSTI]

    Savazzi, Stefano

    network applications. One of these applications is represented by land seismic exploration for oil and gas reservior. Seismic exploration requires a large number (2000 nodes/sqkm) of sensors to be deployed applications [1]. Land seismic exploration for oil reservoir requires a large number of sensors (geophones

  18. CAN HYDROGEN WIN?: EXPLORING SCENARIOS FOR HYDROGEN

    E-Print Network [OSTI]

    CAN HYDROGEN WIN?: EXPLORING SCENARIOS FOR HYDROGEN FUELLED VEHICLES by Katherine Aminta Muncaster of Research Project: Can Hydrogen Win?: Exploring Scenarios for Hydrogen Fuelled Vehicles Report No.: 459 explored the conditions under which hydrogen might succeed in Canada's transportation sector in a carbon

  19. Student Learning Objectives for the MGeo, UHM Dept. of Geology and Geophysics 1. Technical knowledge MGeo graduates are proficient in applying technical knowledge of theory, laboratory methods, field methods, computer

    E-Print Network [OSTI]

    Student Learning Objectives for the MGeo, UHM Dept. of Geology and Geophysics 1. Technical of Geology & Geophysics, approved May 2014 MGeo Degree - "X's" mark key measurement point(s) for that SLO

  20. Exoplanet Detection Techniques

    E-Print Network [OSTI]

    Fischer, Debra A; Laughlin, Greg P; Macintosh, Bruce; Mahadevan, Suvrath; Sahlmann, Johannes; Yee, Jennifer C

    2015-01-01

    We are still in the early days of exoplanet discovery. Astronomers are beginning to model the atmospheres and interiors of exoplanets and have developed a deeper understanding of processes of planet formation and evolution. However, we have yet to map out the full complexity of multi-planet architectures or to detect Earth analogues around nearby stars. Reaching these ambitious goals will require further improvements in instrumentation and new analysis tools. In this chapter, we provide an overview of five observational techniques that are currently employed in the detection of exoplanets: optical and IR Doppler measurements, transit photometry, direct imaging, microlensing, and astrometry. We provide a basic description of how each of these techniques works and discuss forefront developments that will result in new discoveries. We also highlight the observational limitations and synergies of each method and their connections to future space missions.

  1. Africa: the emphasis is exploration

    SciTech Connect (OSTI)

    Not Available

    1980-08-15

    Individual country reports on drilling, oil and gas production, and petroleum exploration and reserves are given for Africa. Nigeria was the continent's largest oil producer in 1979, averaging 2.3 million bpd, followed closely by Libya with 2.07 million bpd. Algeria cut production of crude oil in 1979 to a level of 1,194,350 bpd, and increased gas production to 2031 mmcfd. In Egypt, the return of Israeli-occupied oil fields and a surge in productive capacity enabled production averaging 524,000 bpd. Brief country reports are included for Gabon, Angola, Republic of the Congo, Cameroun, Tunisia, Morocco, Zaire, Ivory Coast, Ghana, Niger, Chad, Republic of South Africa, Sudan, Tanzania, Equatorial Guinea, Seychelles Islands, Mauritania, Republic of Mali, Benin, Kenya, Madagascar, Botswana, Gambia, Mozambique, and Senegal.

  2. Resin infiltration transfer technique

    DOE Patents [OSTI]

    Miller, David V. (Pittsburgh, PA); Baranwal, Rita (Glenshaw, PA)

    2009-12-08

    A process has been developed for fabricating composite structures using either reaction forming or polymer infiltration and pyrolysis techniques to densify the composite matrix. The matrix and reinforcement materials of choice can include, but are not limited to, silicon carbide (SiC) and zirconium carbide (ZrC). The novel process can be used to fabricate complex, net-shape or near-net shape, high-quality ceramic composites with a crack-free matrix.

  3. Image compression technique

    DOE Patents [OSTI]

    Fu, C.Y.; Petrich, L.I.

    1997-03-25

    An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace`s equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image. 16 figs.

  4. Image compression technique

    DOE Patents [OSTI]

    Fu, Chi-Yung (San Francisco, CA); Petrich, Loren I. (Livermore, CA)

    1997-01-01

    An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace's equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image.

  5. GG101 Lab, Fall Semester 2015 SYLLABUS GG101L is where you learn how to learn Geology and Geophysics (i.e., learning by doing). We will

    E-Print Network [OSTI]

    GG101 Lab, Fall Semester 2015 SYLLABUS GG101L is where you learn how to learn Geology and Geophysics (i.e., learning by doing). We will teach you geological and geophysical content, teach you how Handout 2, 3, 5 8, Oct. 12 #8: Earthquakes (in the field) Chapter 16 1, 2, 3, 5 9, Oct. 19 #9: Geologic

  6. Accelerated weight histogram method for exploring free energy landscapes

    E-Print Network [OSTI]

    Lindahl, Viveca; Hess, Berk

    2014-01-01

    Calculating free energies is an important and notoriously difficult task for molecular simulations. The rapid increase in computational power has made it possible to probe increasingly complex systems, yet extracting accurate free energies from these simulations remains a major challenge. Fully exploring the free energy landscape of, say, a biological macromolecule typically requires sampling large conformational changes and slow transitions. Often, the only feasible way to study such a system is to simulate it using an enhanced sampling method. The accelerated weight histogram (AWH) method is a new, efficient extended ensemble sampling technique which adaptively biases the simulation to promote exploration of the free energy landscape. The AWH method uses a probability weight histogram which allows for efficient free energy updates and results in an easy discretization procedure. A major advantage of the method is its general formulation, making it a powerful platform for developing further extensions and an...

  7. Adams-R-D, Thickness of the earth's crust beneath the Pacific-Antarctic ridge, New Zealand Journal of Geology and Geophysics. 7; 3, Pages 529-542. 1964.

    E-Print Network [OSTI]

    Menke, William

    Journal of Geology and Geophysics. 7; 3, Pages 529-542. 1964. Allen,-R-M., The mantle plume beneath-frequency traveltimes; I, Theory, Geophysical Journal International. 141; 1, Pages 157-174. 2000. Forsyth-D-W , Rayleigh Wave Phase Velocity Variations in a Regionalized Pacific, Eos, Transactions, American Geophysical Union

  8. Department of Geology and Geophysics Frederick A. Sutton Building 115 South 1460 East, Room 383, Salt Lake City, Utah 84112-0102 (801) 581-7162 FAX (801) 581-7065

    E-Print Network [OSTI]

    Johnson, Cari

    Department of Geology and Geophysics ≠ Frederick A. Sutton Building 115 South 1460 East, Room 383/2012 Deed of Gift to The University of Utah Department of Geology and Geophysics Donor's Information, to the Department of Geology and Geophysics of the University of Utah as an unrestricted gift. Filled out and sign

  9. Applied ALARA techniques

    SciTech Connect (OSTI)

    Waggoner, L.O.

    1998-02-05

    The presentation focuses on some of the time-proven and new technologies being used to accomplish radiological work. These techniques can be applied at nuclear facilities to reduce radiation doses and protect the environment. The last reactor plants and processing facilities were shutdown and Hanford was given a new mission to put the facilities in a safe condition, decontaminate, and prepare them for decommissioning. The skills that were necessary to operate these facilities were different than the skills needed today to clean up Hanford. Workers were not familiar with many of the tools, equipment, and materials needed to accomplish:the new mission, which includes clean up of contaminated areas in and around all the facilities, recovery of reactor fuel from spent fuel pools, and the removal of millions of gallons of highly radioactive waste from 177 underground tanks. In addition, this work has to be done with a reduced number of workers and a smaller budget. At Hanford, facilities contain a myriad of radioactive isotopes that are 2048 located inside plant systems, underground tanks, and the soil. As cleanup work at Hanford began, it became obvious early that in order to get workers to apply ALARA and use hew tools and equipment to accomplish the radiological work it was necessary to plan the work in advance and get radiological control and/or ALARA committee personnel involved early in the planning process. Emphasis was placed on applying,ALARA techniques to reduce dose, limit contamination spread and minimize the amount of radioactive waste generated. Progress on the cleanup has,b6en steady and Hanford workers have learned to use different types of engineered controls and ALARA techniques to perform radiological work. The purpose of this presentation is to share the lessons learned on how Hanford is accomplishing radiological work.

  10. Applied Science/Techniques

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of raregovAboutRecovery ActTools to someone byApplied Science/Techniques

  11. Explorations of Space-Charge Limits in Parallel-Plate Diodes and Associated Techniques for Automation

    E-Print Network [OSTI]

    Ragan-Kelley, Benjamin

    2013-01-01

    Journal of Physics A: Mathematical and General 8, 1159 (geometry, Journal of Physics A: General Physics 5, 1337 (

  12. National forecast for geothermal resource exploration and development with techniques for policy analysis and resource assessment

    SciTech Connect (OSTI)

    Cassel, T.A.V.; Shimamoto, G.T.; Amundsen, C.B.; Blair, P.D.; Finan, W.F.; Smith, M.R.; Edeistein, R.H.

    1982-03-31

    The backgrund, structure and use of modern forecasting methods for estimating the future development of geothermal energy in the United States are documented. The forecasting instrument may be divided into two sequential submodels. The first predicts the timing and quality of future geothermal resource discoveries from an underlying resource base. This resource base represents an expansion of the widely-publicized USGS Circular 790. The second submodel forecasts the rate and extent of utilization of geothermal resource discoveries. It is based on the joint investment behavior of resource developers and potential users as statistically determined from extensive industry interviews. It is concluded that geothermal resource development, especially for electric power development, will play an increasingly significant role in meeting US energy demands over the next 2 decades. Depending on the extent of R and D achievements in related areas of geosciences and technology, expected geothermal power development will reach between 7700 and 17300 Mwe by the year 2000. This represents between 8 and 18% of the expected electric energy demand (GWh) in western and northwestern states.

  13. Advanced InSAR Techniques for Geothermal Exploration and Production | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolar Energy LLCAdema Technologies IncFuel Cell SystemsEnergy

  14. Property:ExplorationPermit-Drilling | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation,Property Edit with formExplorationParentTechnique Jump

  15. Property:ExplorationPermit-PreDrilling | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation,Property Edit with formExplorationParentTechnique

  16. Property:ExplorationPermitAgency-Drilling | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation,Property Edit with formExplorationParentTechniqueDrilling Jump

  17. Property:ExplorationPermitAgency-PreDrilling | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation,Property Edit with formExplorationParentTechniqueDrilling

  18. DUNE: The Dark Universe Explorer

    E-Print Network [OSTI]

    A. Refregier; O. Boulade; Y. Mellier; B. Milliard; R. Pain; J. Michaud; F. Safa; A. Amara; P. Astier; E. Barrelet; E. Bertin; S. Boulade; C. Cara; A. Claret; L. Georges; R. Grange; J. Guy; C. Koeck; L. Kroely; C. Magneville; N. Palanque-Delabrouille; N. Regnault; G. Smadja; C. Schimd; Z. Sun

    2006-10-03

    Understanding the nature of Dark Matter and Dark Energy is one of the most pressing issues in cosmology and fundamental physics. The purpose of the DUNE (Dark UNiverse Explorer) mission is to study these two cosmological components with high precision, using a space-based weak lensing survey as its primary science driver. Weak lensing provides a measure of the distribution of dark matter in the universe and of the impact of dark energy on the growth of structures. DUNE will also include a complementary supernovae survey to measure the expansion history of the universe, thus giving independent additional constraints on dark energy. The baseline concept consists of a 1.2m telescope with a 0.5 square degree optical CCD camera. It is designed to be fast with reduced risks and costs, and to take advantage of the synergy between ground-based and space observations. Stringent requirements for weak lensing systematics were shown to be achievable with the baseline concept. This will allow DUNE to place strong constraints on cosmological parameters, including the equation of state parameter of the dark energy and its evolution from redshift 0 to 1. DUNE is the subject of an ongoing study led by the French Space Agency (CNES), and is being proposed for ESA's Cosmic Vision programme.

  19. Exploring the structure of high temperature, iron-bearing liquids

    SciTech Connect (OSTI)

    Wilding, Martin [Aberystwyth Univ., Aberystwyth (United Kingdom). Dept. of Mathematics and Physics.; Benmore, Chris [Argonne National Lab. (ANL), Argonne, IL (United States); Weber, Rick [Materials Development Inc., Arlington Heights, IL (United States); Parise, John [Stony Brook Univ., Stony Brook, NY (United States). Dept. of Geosciences.; Lazareva, Lena [Stony Brook Univ., Stony Brook, NY (United States). Dept. of Geosciences.; Skinner, Lawrie [Argonne National Lab. (ANL), Argonne, IL (United States); Materials Development Inc., Arlington Heights, IL (United States); Alderman, Oliver [Materials Development Inc., Arlington Heights, IL (United States); Tamalonis, Antony [Materials Development Inc., Arlington Heights, IL (United States)

    2015-01-01

    This paper describes the direct measurements of the structure of iron-bearing liquids using a combination of containerless techniques and inĖsitu high energy x-ray diffraction. These capabilities provide data that is important to help model and optimize processes such as smelting, steel making, and controlling slag chemistry. A successful programme of liquid studies has been undertaken and the Advanced Photon Source using these combined techniques which include the provision of gas mixing and the control of pO? and the changing influence of mixed valance elements. It is possible to combine rapid image acquisition with quenching of liquids to obtain the full diffraction patterns of deeply supercooled liquids and the metastable supercooled liquid regime, where the liquid structures and viscosity change most dramatically, can also be explored.

  20. Exploring the structure of high temperature, iron-bearing liquids

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wilding, Martin; Benmore, Chris; Weber, Rick; Parise, John; Lazareva, Lena; Skinner, Lawrie; Alderman, Oliver; Tamalonis, Antony

    2015-06-25

    This paper describes the direct measurements of the structure of iron-bearing liquids using a combination of containerless techniques and inĖsitu high energy x-ray diffraction. These capabilities provide data that is important to help model and optimize processes such as smelting, steel making, and controlling slag chemistry. A successful programme of liquid studies has been undertaken and the Advanced Photon Source using these combined techniques which include the provision of gas mixing and the control of pO? and the changing influence of mixed valance elements. It is possible to combine rapid image acquisition with quenching of liquids to obtain the fullmore†Ľdiffraction patterns of deeply supercooled liquids and the metastable supercooled liquid regime, where the liquid structures and viscosity change most dramatically, can also be explored.ę†less

  1. Geophysical Monitoring Methods Evaluation for the FutureGen 2.0 Project

    SciTech Connect (OSTI)

    Strickland, Chris E.; USA, Richland Washington; Vermeul, Vince R.; USA, Richland Washington; Bonneville, Alain; USA, Richland Washington; Sullivan, E. Charlotte; USA, Richland Washington; Johnson, Tim C.; USA, Richland Washington; Spane, Frank A.; USA, Richland Washington; Gilmore, Tyler J.; USA, Richland Washington

    2014-12-31

    A comprehensive monitoring program will be needed in order to assess the effectiveness of carbon sequestration at the FutureGen 2.0 carbon capture and storage (CCS) field-site. Geophysical monitoring methods are sensitive to subsurface changes that result from injection of CO2 and will be used for: (1) tracking the spatial extent of the free phase CO2 plume, (2) monitoring advancement of the pressure front, (3) identifying or mapping areas where induced seismicity occurs, and (4) identifying and mapping regions of increased risk for brine or CO2 leakage from the reservoir. Site-specific suitability and cost effectiveness were evaluated for a number of geophysical monitoring methods including: passive seismic monitoring, reflection seismic imaging, integrated surface deformation, time-lapse gravity, pulsed neutron capture logging, cross-borehole seismic, electrical resistivity tomography, magnetotellurics and controlled source electromagnetics. The results of this evaluation indicate that CO2 injection monitoring using reflection seismic methods would likely be difficult at the FutureGen 2.0 site. Electrical methods also exhibited low sensitivity to the expected CO2 saturation changes and would be affected by metallic infrastructure at the field site. Passive seismic, integrated surface deformation, time-lapse gravity, and pulsed neutron capture monitoring were selected for implementation as part of the FutureGen 2.0 storage site monitoring program.

  2. Terracentric Nuclear Fission Reactor: Background, Basis, Feasibility, Structure, Evidence, and Geophysical Implications

    E-Print Network [OSTI]

    J. Marvin Herndon

    2013-12-31

    The background, basis, feasibility, structure, evidence, and geophysical implications of a naturally occurring Terracentric nuclear fission georeactor are reviewed. For a nuclear fission reactor to exist at the center of the Earth, all of the following conditions must be met: (1) There must originally have been a substantial quantity of uranium within Earth's core; (2) There must be a natural mechanism for concentrating the uranium; (3) The isotopic composition of the uranium at the onset of fission must be appropriate to sustain a nuclear fission chain reaction; (4) The reactor must be able to breed a sufficient quantity of fissile nuclides to permit operation over the lifetime of Earth to the present; (5) There must be a natural mechanism for the removal of fission products; (6) There must be a natural mechanism for removing heat from the reactor; (7) There must be a natural mechanism to regulate reactor power level, and; (8) The location of the reactor or must be such as to provide containment and prevent meltdown. Herndon's georeactor alone is shown to meet those conditions. Georeactor existence evidence based upon helium measurements and upon antineutrino measurements is described. Geophysical implications discussed include georeactor origin of the geomagnetic field, geomagnetic reversals from intense solar outbursts and severe Earth trauma, as well as georeactor heat contributions to global dynamics.

  3. Geophysical Monitoring Methods Evaluation for the FutureGen 2.0 Project

    SciTech Connect (OSTI)

    Strickland, Chris E. [Pacific Northwest National Laboratory; Richland Washington USA; Vermeul, Vince R. [Pacific Northwest National Laboratory; Richland Washington USA; Bonneville, Alain [Pacific Northwest National Laboratory; Richland Washington USA; Sullivan, E. Charlotte [Pacific Northwest National Laboratory; Richland Washington USA; Johnson, Tim C. [Pacific Northwest National Laboratory; Richland Washington USA; Spane, Frank A. [Pacific Northwest National Laboratory; Richland Washington USA; Gilmore, Tyler J. [Pacific Northwest National Laboratory; Richland Washington USA

    2014-12-31

    A comprehensive monitoring program will be needed in order to assess the effectiveness of carbon sequestration at the FutureGen 2.0 carbon capture and storage (CCS) field-site. Geophysical monitoring methods are sensitive to subsurface changes that result from injection of CO2 and will be used for: (1) tracking the spatial extent of the free phase CO2 plume, (2) monitoring advancement of the pressure front, (3) identifying or mapping areas where induced seismicity occurs, and (4) identifying and mapping regions of increased risk for brine or CO2 leakage from the reservoir. Site-specific suitability and cost effectiveness were evaluated for a number of geophysical monitoring methods including: passive seismic monitoring, reflection seismic imaging, integrated surface deformation, time-lapse gravity, pulsed neutron capture logging, cross-borehole seismic, electrical resistivity tomography, magnetotellurics and controlled source electromagnetics. The results of this evaluation indicate that CO2 injection monitoring using reflection seismic methods would likely be difficult at the FutureGen 2.0 site. Electrical methods also exhibited low sensitivity to the expected CO2 saturation changes and would be affected by metallic infrastructure at the field site. Passive seismic, integrated surface deformation, time-lapse gravity, and pulsed neutron capture monitoring were selected for implementation as part of the FutureGen 2.0 storage site monitoring program.

  4. Geophysics: Building E5190 decommissioning, Aberdeen Proving Ground. Interim progress report

    SciTech Connect (OSTI)

    Miller, S.F.; Thompson, M.D.; McGinnis, M.G.; McGinnis, L.D.

    1992-07-01

    Building E5190 is one of ten potentially contaminated sites in the Canal Creek area of the Edgewood section of Aberdeen Proving Ground examined by a geophysical team from Argonne National Laboratory in April and May 1992. A noninvasive geophysical survey, including the complementary technologies of magnetics, electrical resistivity, and ground-penetrating radar, was conducted around the perimeter as a guide to developing a sampling and monitoring program prior to decommissioning and dismantling the building. The magnetics surveys indicated that multistation, positive magnetic sources are randomly distributed north and west of the building. Two linear trends were noted: one that may outline buried utility lines and another that is produced by a steel-covered trench. The resistivity profiling indicated three conductive zones: one due to increased moisture in a ditch, one associated with buried utility lines, and a third zone associated with the steel-covered trench. Ground-penetrating radar imaging detected two significant anomalies, which were correlated with small-amplitude magnetic anomalies. The objectives of the study -- to detect and locate objects and to characterize a located object were achieved.

  5. Geophysical Monitoring Methods Evaluation for the FutureGen 2.0 Project

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Strickland, Chris E.; USA, Richland Washington; Vermeul, Vince R.; USA, Richland Washington; Bonneville, Alain; USA, Richland Washington; Sullivan, E. Charlotte; USA, Richland Washington; Johnson, Tim C.; USA, Richland Washington; et al

    2014-12-31

    A comprehensive monitoring program will be needed in order to assess the effectiveness of carbon sequestration at the FutureGen 2.0 carbon capture and storage (CCS) field-site. Geophysical monitoring methods are sensitive to subsurface changes that result from injection of CO2 and will be used for: (1) tracking the spatial extent of the free phase CO2 plume, (2) monitoring advancement of the pressure front, (3) identifying or mapping areas where induced seismicity occurs, and (4) identifying and mapping regions of increased risk for brine or CO2 leakage from the reservoir. Site-specific suitability and cost effectiveness were evaluated for a number ofmore†Ľgeophysical monitoring methods including: passive seismic monitoring, reflection seismic imaging, integrated surface deformation, time-lapse gravity, pulsed neutron capture logging, cross-borehole seismic, electrical resistivity tomography, magnetotellurics and controlled source electromagnetics. The results of this evaluation indicate that CO2 injection monitoring using reflection seismic methods would likely be difficult at the FutureGen 2.0 site. Electrical methods also exhibited low sensitivity to the expected CO2 saturation changes and would be affected by metallic infrastructure at the field site. Passive seismic, integrated surface deformation, time-lapse gravity, and pulsed neutron capture monitoring were selected for implementation as part of the FutureGen 2.0 storage site monitoring program.ę†less

  6. "Multiscale Capabilities for Exploring Transport Phenomena in...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: "Multiscale Capabilities for Exploring Transport Phenomena in Batteries": Ab Initio Calculations on Defective LiFePO4 Citation Details In-Document Search Title:...

  7. EIA - Analysis of Natural Gas Exploration & Reserves

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Exploration & Reserves 2009 U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves 2008 Annual Report Categories: Resources & Reserves (Released, 10292009, PDF, XLS, and...

  8. Validation of Innovative Exploration Technologies for Newberry...

    Open Energy Info (EERE)

    F. Waibel, Project Manager, Newberry Geothermal Holdings, LLC Targets Milestones -Lower the cost and risk of resource exploration -Open up new regions for commercial...

  9. Transitioning the Transportation Sector: Exploring the Intersection...

    Broader source: Energy.gov (indexed) [DOE]

    held the Transitioning the Transportation Sector: Exploring the Intersection of Hydrogen Fuel Cell and Natural Gas Vehicles workshop in Washington, D.C., on September 9, 2014....

  10. Geographic Information Systems- Tools For Geotherm Exploration...

    Open Energy Info (EERE)

    Information Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management Jump to: navigation, search OpenEI...

  11. Generalized Standby-Sparing Techniques for Energy-Efficient Fault Tolerance in Multiprocessor Real-Time Systems

    E-Print Network [OSTI]

    Aydin, Hakan

    Generalized Standby-Sparing Techniques for Energy-Efficient Fault Tolerance in Multiprocessor Real-Sparing (SS) technique has been pre- viously explored to improve energy efficiency while providing fault faults, we develop energy-efficient fault tolerance techniques for real-time systems deploying

  12. Handling Big Dimensions in Distributed Data Warehouses using the DWS Technique

    E-Print Network [OSTI]

    Song, Il-Yeol

    Handling Big Dimensions in Distributed Data Warehouses using the DWS Technique Marco Costa Critical tables creates a limitation to the applicability of the DWS technique to data warehouses with big is also common in big data warehouses [7]. Two types of parallelism can be explored at the query level

  13. 2001 Journal of Geophysical Research Vol 106 (C3), pp 4593-4612 Internal hydraulic flows on the continental shelf

    E-Print Network [OSTI]

    Balasubramanian, Ravi

    hydraulic jump. The dissipation rate of turbulent energy is consistent with the mean energy removal rate elevation associated with hydraulic jumps. These arise when a flow dominated by kinetic energy (ac 2001 Journal of Geophysical Research Vol 106 (C3), pp 4593-4612 Internal hydraulic flows

  14. GEOPHYSICS, VOL. 62, NO. 4 (JULY-AUGUST 1997); P. 11511162, 9 FIGS. Effects of pore structure and wettability on

    E-Print Network [OSTI]

    Knight, Rosemary

    and Rosemary J. Knight ABSTRACT A network model of porous media is used to assess the effects of pore structure distribution of water. The effects of pore structure are assessed by varying pore size distributionGEOPHYSICS, VOL. 62, NO. 4 (JULY-AUGUST 1997); P. 1151≠1162, 9 FIGS. Effects of pore structure

  15. A multi-physics, integrated approach to formation evaluation using borehole geophysical measurements and 3D seismic data

    E-Print Network [OSTI]

    Torres-VerdŪn, Carlos

    A multi-physics, integrated approach to formation evaluation using borehole geophysical at Austin Summary This paper describes a methodology for formation evaluation based on the integration and DC resistivity sensors. Finally, 3D seismic data, post-stack and pre-stack, are used to ascertain

  16. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Evaluation of 'all weather' microwave-derived land

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Evaluation of 'all weather measurements over land are still limited, especially under cloudy con- ditions. Ts estimates from infrared water vapor, cloud liquid wa- ter, and surface emissivities over land from Special Sensor Microwave / Im

  17. Nonlinear Processes in Geophysics, 12, 527536, 2005 SRef-ID: 1607-7946/npg/2005-12-527

    E-Print Network [OSTI]

    Boyer, Edmond

    Processes in Geophysics The COSMO-LEPS mesoscale ensemble system: validation of the methodology been designed to have a probabilistic support at the mesoscale, fo- cusing the attention on extreme a challenging problem. The key role played by mesoscale and orographic- related processes can seriously limit

  18. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Source Properties of Dynamic Rupture Pulses with Off-Fault

    E-Print Network [OSTI]

    Ampuero, Jean Paul

    at systematically quantifying the influ- ence of plastic energy dissipation on pulse properties, such 1SwissJOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Source Properties of Dynamic Rupture Pulses with Off-Fault Plasticity A.-A. Gabriel1,2 , J.-P. Ampuero3 , L. A. Dalguer1 , and P. M. Mai4

  19. GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 8, APRIL15, PAGES 1507-1510, 2001 Tropical Atlantic air-sea interaction

    E-Print Network [OSTI]

    McCreary Jr., Julian P.

    GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 8, APRIL15, PAGES 1507-1510, 2001 Tropical Atlantic air- quate at this time, and it is currently under debate whether it represents a mode of air-sea interaction to the extratropics. 2. GCM experiments The global AGCM is a Japanese community model de- scribed by Numaguti [1999

  20. GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 8, PAGES 1507-1510, APRIL 15, 2001 Tropical Atlantic air-sea interaction

    E-Print Network [OSTI]

    Xie, Shang-Ping

    GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 8, PAGES 1507-1510, APRIL 15, 2001 Tropical Atlantic air- quate at this time, and it is currently under debate whether it represents a mode of air-sea interaction to the extratropics. 2. GCM experiments The global AGCM is a Japanese community model de- scribed by Numaguti [1999

  1. GEOPHYSICS, VOL. 69, NO. 3 (MAY-JUNE 2004); P. 708718, 17 FIGS. 10.1190/1.1759457

    E-Print Network [OSTI]

    Tsvankin, Ilya

    - ally heterogeneous anisotropic models for prestack depth migration. The algorithm for P-wave migration is implemented as an iterative two-step pro- cedure that includes prestack depth migration (imaging stepGEOPHYSICS, VOL. 69, NO. 3 (MAY-JUNE 2004); P. 708≠718, 17 FIGS. 10.1190/1.1759457 Migration

  2. Gaussian packet pre{stack depth migration Department of Geophysics, Charles University, Ke Karlovu 3, 121 16 Praha 2, Czech

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Gaussian packet pre{stack depth migration Karel #20; Z#19;a#20;cek Department of Geophysics method | the Gaussian packet pre{stack depth migration. The advantages over the methods based on Gaussian pre{stack depth migration is especially suitable for a target{oriented imaging. Key words Gaussian

  3. Nonlinear Processes in Geophysics (2005) 12: 311320 SRef-ID: 1607-7946/npg/2005-12-311

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    2005-01-01

    Processes in Geophysics Forced versus coupled dynamics in Earth system modelling and prediction B. Knopf1, H, a crucial element of Earth System modelling. Since the cur- rently preferred strategy for simulating. Such a simplifying tech- nique is often employed in Earth System models in order to save computing resources

  4. GEOPHYSICAL RESEARCH LETTERS, VOL. 0, NO. 0, PAGES 0-0, M 0, 2001 On the Pacific Ocean regime shift

    E-Print Network [OSTI]

    GEOPHYSICAL RESEARCH LETTERS, VOL. 0, NO. 0, PAGES 0-0, M 0, 2001 On the Pacific Ocean regime shift variability of Pacific Ocean upper ocean heat content is examined for the 1948-1998 period using gridded-wide phenomenon affecting the thermal structure from 60 S to 70 N. EOF analysis of the Pacific Ocean heat content

  5. will appear in Journal of Geophysical Research, 2001. Observations of turbulence in a tidal beam and across a coastal ridge

    E-Print Network [OSTI]

    Lien, Ren-Chieh

    1 will appear in Journal of Geophysical Research, 2001. Observations of turbulence in a tidal beam the turbulence kinetic energy dissipation rate exceeded 10-6 W kg-1 , and the diapycnal eddy diffusivity K varied by a factor of 100 with a semidiurnal tidal periodicity; the isopycnal displacement confirmed

  6. GEOPHYSICS, VOL. 47, NO. 10 (OCTOBER 1982); P. 1413-1421, 9 FIGS. The signature of an air gun array

    E-Print Network [OSTI]

    GEOPHYSICS, VOL. 47, NO. 10 (OCTOBER 1982); P. 1413-1421, 9 FIGS. The signature of an air gun array. Haugland$ ABSTRACT We designed a system to enable the signatureof an air gun array to be calculatedat any [subject of a patent application]. The number of these measurementsmust not be less than the number of guns

  7. Geophysical Journal International Geophys. J. Int. (2015) 201, 17651780 doi: 10.1093/gji/ggv107

    E-Print Network [OSTI]

    Key, Kerry

    2015-01-01

    for electromagnetic inversion Brent Wheelock,1 Steven Constable2 and Kerry Key2 1ExxonMobil Upstream Research Company GJI Marine geosciences and applied geophysics The advantages of logarithmically scaled data A R Y Non-linear inversion algorithms traverse a data misfit space over multiple iterations of trial

  8. Geophysical Journal International Geophys. J. Int. (2014) 197, 630635 doi: 10.1093/gji/ggu016

    E-Print Network [OSTI]

    Bodin, Thomas

    2014-01-01

    , Indonesia, from transdimensional seismic ambient noise tomography Z. Zulfakriza,1 E. Saygin,2 P. R. Cummins, Faculty of Earth Sciences and Technology, ITB, Bandung, 40132, Indonesia. E-mail: zulfakriza 3Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, ITB, Bandung, 40132

  9. GEOPHYSICAL RESEARCH LETTERS, VOL. 0, NO. 0, PAGES 0-0, M 0, 2001 Viscoelastic Folding: Maxwell versus Kelvin Rheology

    E-Print Network [OSTI]

    Podladchikov, Yuri

    -parallel stress to shear modulus. A layer with Maxwell rheology approximates this limit that generates the fastest, since the Kelvin rheology yields an identical bending moment. A critical elastic layer thick- ness, R2 H Copyright 2001 by the American Geophysical Union. Paper number 1999GL000000. 0094-8276/01/1999GL000000

  10. GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, The location of potential energy sources and the

    E-Print Network [OSTI]

    Edwards, Neil

    that dense water export from the Atlantic depends on a poten- tial energy (PE) sink, associated with denseGEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, The location of potential energy sources and the export of dense water from the Atlantic Ocean K. I. C. Oliver 1,2 , N. R. Edwards 1 Kevin

  11. Geophysical Journal International Geophys. J. Int. (2013) 193, 238251 doi: 10.1093/gji/ggs080

    E-Print Network [OSTI]

    Snieder, Roel

    2013-01-01

    -0006, Japan. E-mail: sawa@bosai.go.jp 2Center for Wave Phenomena, Department of Geophysics, Colorado School of VP, VS and shear wave splitting parameters are explained by the generation of omnidirectional cracks GJISeismology Time-lapse changes of P- and S-wave velocities and shear wave splitting in the first year after

  12. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Pore pressure evolution in deforming granular1

    E-Print Network [OSTI]

    Toussaint, Renaud

    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Pore pressure evolution in deforming. Often deformation of the granular network leads to pore fluid8 pressure (PP) changes. If the PP rises coupling6 between two deforming phases: the solid granular network and the fluid-filled7 pore network

  13. GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, How pore fluid pressurization influences crack tip processes

    E-Print Network [OSTI]

    GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, How pore fluid pressurization temperature and pore pressure rises along a steadily propagating shear crack, assuming a given shear stress profile along the crack (i.e., initially neglecting effects of pore pressure on shear stress

  14. GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, A Physical Model for Seismic Noise Generation from Sediment

    E-Print Network [OSTI]

    Ampuero, Jean Paul

    GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, A Physical Model for Seismic Noise noise induced by the transport of sediment in rivers. The model pro- vides an expression for the power on seismic noise observations. The model predictions for the PSD are consistent with recent measurements and

  15. Geological, geochemical, and geophysical survey of the geothermal resources at Hot Springs Bay Valley, Akutan Island, Alaska

    SciTech Connect (OSTI)

    Motyka, R.J.; Wescott, E.M.; Turner, D.L.; Swanson, S.E.; Romick, J.D.; Moorman, M.A.; Poreda, R.J.; Witte, W.; Petzinger, B.; Allely, R.D.

    1985-01-01

    An extensive survey was conducted of the geothermal resource potential of Hot Springs Bay Valley on Akutan Island. A topographic base map was constructed, geologic mapping, geophysical and geochemical surveys were conducted, and the thermal waters and fumarolic gases were analyzed for major and minor element species and stable isotope composition. (ACR)

  16. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Examination of Type II Origin with SOHO/LASCO

    E-Print Network [OSTI]

    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Examination of Type II Origin.-S. CHO ET AL.: EXAMINATION OF TYPE II ORIGIN Abstract. We examine a possibility that metric-type II solar radio bursts are all caused by CME generated shocks. For this we consider 129 type IIs- flare events

  17. Using time-lapse seismics as a reservoir-monitoring tool, geophysics can help distinguish different reservoir pro-

    E-Print Network [OSTI]

    reservoir pro- duction scenarios. For example, Eiken et al. (2000) success- fully detected fluid-saturation life, oil saturation usually decreases, reservoir pressure declines, and gas breakout may occurUsing time-lapse seismics as a reservoir-monitoring tool, geophysics can help distinguish different

  18. Lyapunov exponents for 2-D ray tracing without interfaces Ludek Klimes , Department of Geophysics, Charles University, Prague, Czech Republic

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Lyapunov exponents for 2-D ray tracing without interfaces Ludek Klimes , Department of Geophysics, Charles University, Prague, Czech Republic Summary The Lyapunov exponents asymptotically quantify the ex- ponential divergence of rays. The \\Lyapunov exponent" for a nite 2-D ray and the average \\Lyapunov exponents

  19. Lyapunov exponents for 2D ray tracing without interfaces Ludek Klimes \\Lambda , Department of Geophysics, Charles University, Prague, Czech Republic

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Lyapunov exponents for 2¬≠D ray tracing without interfaces LudŇłek KlimeŇłs \\Lambda , Department of Geophysics, Charles University, Prague, Czech Republic Summary The Lyapunov exponents asymptotically quantify the ex¬≠ ponential divergence of rays. The ``Lyapunov exponent'' for a finite 2¬≠D ray and the average

  20. GEOPHYSICS, VOL. 67, NO. 5 (SEPTEMBER-OCTOBER 2002); P. 13821395, 16 FIGS. 10.1190/1.1512784

    E-Print Network [OSTI]

    Tsvankin, Ilya

    History Joint inversion of PP and PS reflection data for VTI media: A North Sea case study Vladimir- ticomponent stacking-velocity tomography to a 2-D line acquired over the lower Tertiary Siri reservoirGEOPHYSICS, VOL. 67, NO. 5 (SEPTEMBER-OCTOBER 2002); P. 1382≠1395, 16 FIGS. 10.1190/1.1512784 Case

  1. GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 15, PAGES 22452248, AUGUST 1, 2000 Subsurface nuclear tests monitoring through the

    E-Print Network [OSTI]

    Hourdin, Chez Frťdťric

    GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 15, PAGES 2245≠2248, AUGUST 1, 2000 Sub≠surface nuclear nuclear tests down to 1 kiloton (kt) TNT equivalent anywhere on the planet. The IMS is based upon four waves will help check for underground, under≠water and atmospheric nuclear tests. The fourth network

  2. Wind Bias from Sub-optimal Estimation Due to Geophysical Modeling Error Paul E. Johnson and David G . Long

    E-Print Network [OSTI]

    Long, David G.

    Wind Bias from Sub-optimal Estimation Due to Geophysical Modeling Error -Wind I Paul E. Johnson (which relates the wind to the normalized radar cross section, NRCS, of the ocean surface) is uncertainty in the NRCS for given wind conditions. When the estimated variability is in- cluded in the maximum likelihood

  3. Engineering Exploration Day Saturday, February 13, 2010

    E-Print Network [OSTI]

    Rutledge, Steven

    Engineering Exploration Day Saturday, February 13, 2010 Fort Collins, Colorado #12;2 EXPLORATION Engineering, Dr. Ken Reardon LSC Room 224-226 Electrical & Computer Engineering, Karen Ungerer LSC Room 228 Environmental Engineering, Dr. Sybil Sharvelle LSC Room 230 Mechanical Engineering, Dr. Patrick Fitzhorn

  4. Geophysical monitoring and reactive transport modeling of ureolytically-driven calcium carbonate precipitation

    SciTech Connect (OSTI)

    Wu, Y.; Ajo-Franklin, J.B.; Spycher, N.; Hubbard, S.S.; Zhang, G.; Williams, K.H.; Taylor, J.; Fujita, Y.; Smith, R.

    2011-07-15

    Ureolytically-driven calcium carbonate precipitation is the basis for a promising in-situ remediation method for sequestration of divalent radionuclide and trace metal ions. It has also been proposed for use in geotechnical engineering for soil strengthening applications. Monitoring the occurrence, spatial distribution, and temporal evolution of calcium carbonate precipitation in the subsurface is critical for evaluating the performance of this technology and for developing the predictive models needed for engineering application. In this study, we conducted laboratory column experiments using natural sediment and groundwater to evaluate the utility of geophysical (complex resistivity and seismic) sensing methods, dynamic synchrotron x-ray computed tomography (micro-CT), and reactive transport modeling for tracking ureolytically-driven calcium carbonate precipitation processes under site relevant conditions. Reactive transport modeling with TOUGHREACT successfully simulated the changes of the major chemical components during urea hydrolysis. Even at the relatively low level of urea hydrolysis observed in the experiments, the simulations predicted an enhanced calcium carbonate precipitation rate that was 3-4 times greater than the baseline level. Reactive transport modeling results, geophysical monitoring data and micro-CT imaging correlated well with reaction processes validated by geochemical data. In particular, increases in ionic strength of the pore fluid during urea hydrolysis predicted by geochemical modeling were successfully captured by electrical conductivity measurements and confirmed by geochemical data. The low level of urea hydrolysis and calcium carbonate precipitation suggested by the model and geochemical data was corroborated by minor changes in seismic P-wave velocity measurements and micro-CT imaging; the latter provided direct evidence of sparsely distributed calcium carbonate precipitation. Ion exchange processes promoted through NH{sub 4}{sup +} production during urea hydrolysis were incorporated in the model and captured critical changes in the major metal species. The electrical phase increases were potentially due to ion exchange processes that modified charge structure at mineral/water interfaces. Our study revealed the potential of geophysical monitoring for geochemical changes during urea hydrolysis and the advantages of combining multiple approaches to understand complex biogeochemical processes in the subsurface.

  5. Toward Systems Biology in Brown Algae to Explore Acclimation and Adaptation to the Shore Environment

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    Toward Systems Biology in Brown Algae to Explore Acclimation and Adaptation to the Shore,2 Catherine Boyen,1,2 and Anne Siegel4,5 Abstract Brown algae belong to a phylogenetic lineage distantly siliculosus as a model organism for brown algae has represented a framework in which several omics techniques

  6. Exploring the Chinese Mental Lexicon with Word Association Norms Oi Yee Kwong

    E-Print Network [OSTI]

    Exploring the Chinese Mental Lexicon with Word Association Norms Oi Yee Kwong Department of Chinese of word association techniques, which have rarely been applied on Chinese. This paper reports based on 58 participants reveal interesting properties of the Chinese mental lexicon

  7. Dose Reduction Techniques

    SciTech Connect (OSTI)

    WAGGONER, L.O.

    2000-05-16

    As radiation safety specialists, one of the things we are required to do is evaluate tools, equipment, materials and work practices and decide whether the use of these products or work practices will reduce radiation dose or risk to the environment. There is a tendency for many workers that work with radioactive material to accomplish radiological work the same way they have always done it rather than look for new technology or change their work practices. New technology is being developed all the time that can make radiological work easier and result in less radiation dose to the worker or reduce the possibility that contamination will be spread to the environment. As we discuss the various tools and techniques that reduce radiation dose, keep in mind that the radiological controls should be reasonable. We can not always get the dose to zero, so we must try to accomplish the work efficiently and cost-effectively. There are times we may have to accept there is only so much you can do. The goal is to do the smart things that protect the worker but do not hinder him while the task is being accomplished. In addition, we should not demand that large amounts of money be spent for equipment that has marginal value in order to save a few millirem. We have broken the handout into sections that should simplify the presentation. Time, distance, shielding, and source reduction are methods used to reduce dose and are covered in Part I on work execution. We then look at operational considerations, radiological design parameters, and discuss the characteristics of personnel who deal with ALARA. This handout should give you an overview of what it takes to have an effective dose reduction program.

  8. Adventures in supercomputing: Scientific exploration in an era of change

    SciTech Connect (OSTI)

    Gentry, E.; Helland, B.; Summers, B.

    1997-11-01

    Students deserve the opportunity to explore the world of science surrounding them. Therefore it is important that scientific exploration and investigation be a part of each student`s educational career. The Department of Energy`s Adventures in Superconducting (AiS) takes students beyond mere scientific literacy to a rich embodiment of scientific exploration. AiS provides today`s science and math students with a greater opportunity to investigate science problems, propose solutions, explore different methods of solving the problem, organize their work into a technical paper, and present their results. Students learn at different rates in different ways. Science classes with students having varying learning styles and levels of achievement have always been a challenge for teachers. The AiS {open_quotes}hands-on, minds-on{close_quotes} project-based method of teaching science meets the challenge of this diversity heads on! AiS uses the development of student chosen projects as the means of achieving a lifelong enthusiasm for scientific proficiency. One goal of AiS is to emulate the research that takes place in the everyday environment of scientists. Students work in teams and often collaborate with students nationwide. With the help of mentors from the academic and scientific community, students pose a problem in science, investigate possible solutions, design a mathematical and computational model for the problem, exercise the model to achieve results, and evaluate the implications of the results. The students then have the opportunity to present the project to their peers, teachers, and scientists. Using this inquiry-based technique, students learn more than science skills, they learn to reason and think -- going well beyond the National Science Education Standard. The teacher becomes a resource person actively working together with the students in their quest for scientific knowledge.

  9. Techniques For Microfabricating Coils For Microelectromechanical Systems Applications

    SciTech Connect (OSTI)

    Woods, R. C. [Louisiana State University, 102A Department of Electrical and Computer Engineering, South Campus Drive, Baton Rouge, LA 70803-5901 (United States); Powell, A. L. [University of Sheffield, Sheffield S10 2TN (United Kingdom)

    2008-01-21

    The advanced technology necessary for building future space exploration vehicles includes microfabricated coils for making possible self-inductances integrated with other passive and active electronic components. Integrated inductances make possible significant improvements in reliability over the traditional arrangement of using external discrete inductances, as well as allowing significant size (volume) reductions (also important in space vehicles). Two possible fabrication techniques (one using proprietary branded 'Foturan' glass, the other using silicon wafer substrates) for microscopic coils are proposed, using electroplating into channels. The techniques have been evaluated for fabricating the planar electrical coils needed for typical microelectromechanical systems applications. There remain problems associated with processing using 'Foturan' glass, but coil fabrication on silicon wafers was successful. Fabrication methods such as these are expected to play an important part in the development of systems and subsystems for forthcoming space exploration missions.

  10. Mechanism of destruction of transport barriers in geophysical jets with Rossby waves

    E-Print Network [OSTI]

    M. Yu. Uleysky; M. V. Budyansky; S. V. Prants

    2012-02-02

    The mechanism of destruction of a central transport barrier in a dynamical model of a geophysical zonal jet current in the ocean or the atmosphere with two propagating Rossby waves is studied. We develop a method for computing a central invariant curve which is an indicator of existence of the barrier. Breakdown of this curve under a variation of the Rossby wave amplitudes and onset of chaotic cross-jet transport happen due to specific resonances producing stochastic layers in the central jet. The main result is that there are resonances breaking the transport barrier at unexpectedly small values of the amplitudes that may have serious impact on mixing and transport in the ocean and the atmosphere. The effect can be found in laboratory experiments with azimuthal jets and Rossby waves in rotating tanks under specific values of the wave numbers that are predicted in the theory.

  11. Bibliography of the geological and geophysical aspects of hot dry rock geothermal resources

    SciTech Connect (OSTI)

    Heiken, G.; Sayer, S.

    1980-02-01

    This is the first issue of an annual compilation of references that are useful to the exploration, understanding and development of the hot dry rock geothermal resource.

  12. Development of Metric for Measuring the Impact of RD&D Funding on GTO's Geothermal Exploration Goals (Presentation)

    SciTech Connect (OSTI)

    Jenne, S.; Young, K. R.; Thorsteinsson, H.

    2013-04-01

    The Department of Energy's Geothermal Technologies Office (GTO) provides RD&D funding for geothermal exploration technologies with the goal of lowering the risks and costs of geothermal development and exploration. In 2012, NREL was tasked with developing a metric to measure the impacts of this RD&D funding on the cost and time required for exploration activities. The development of this metric included collecting cost and time data for exploration techniques, creating a baseline suite of exploration techniques to which future exploration and cost and time improvements could be compared, and developing an online tool for graphically showing potential project impacts (all available at http://en.openei.org/wiki/Gateway:Geothermal). The conference paper describes the methodology used to define the baseline exploration suite of techniques (baseline), as well as the approach that was used to create the cost and time data set that populates the baseline. The resulting product, an online tool for measuring impact, and the aggregated cost and time data are available on the Open EI website for public access (http://en.openei.org).

  13. Geologic, geophysical, and geochemical aspects of site-specific studies of the geopressured-geothermal energy resource of southern Louisiana. Final report

    SciTech Connect (OSTI)

    Pilger, R.H. Jr. (ed.)

    1985-01-01

    The report consists of four sections dealing with progress in evaluating geologic, geochemical, and geophysical aspects of geopressured-geothermal energy resources in Louisiana. Separate abstracts have been prepared for the individual sections. (ACR)

  14. Diagnostic techniques used in AVLIS

    SciTech Connect (OSTI)

    Heestand, G.M.; Beeler, R.G.

    1992-12-01

    This is the second part of a general overview talk on the atomic vapor laser isotope separation (AVLIS) process. In this presentation the authors will discuss the diagnostic techniques used to measure key parameters in their atomic vapor including densities, temperature, velocities charge exchange rates and background ionization levels. Although these techniques have been extensively applied to their uranium program they do have applicability to other systems. Relevant data demonstrating these techniques will be shown.

  15. Exploring the Nature of Matter | Jefferson Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of matter." And you might ask, what do they mean? At Jefferson Laboratory, we scatter electrons like Hofstadter did in the '50s when he explored nuclei. That's why one of our roads...

  16. Design exploration through bidirectional modeling of constraints

    E-Print Network [OSTI]

    Kilian, Axel, 1971-

    2006-01-01

    Today digital models for design exploration are not used to their full potential. The research efforts in the past decades have placed geometric design representations firmly at the center of digital design environments. ...

  17. Wind Power Integration: Exploring Impacts and Alternatives

    E-Print Network [OSTI]

    Walter, M.Todd

    Wind Power Integration: Exploring Impacts and Alternatives Assist. Prof. C sustainable sources of energy. The idea of harnessing wind energy has been there have been no less than fifteen in-depth wind integration studies

  18. Independent focuses Philippines exploration on Visayan basin

    SciTech Connect (OSTI)

    Rillera, F.G.

    1995-08-21

    Cophil Exploration Corp., a Filipino public company, spearheaded 1995 Philippine oil and gas exploration activity with the start of its gas delineation drilling operations in Libertad, northern Cebu. Cophil and its Australian partners, Coplex Resources NL and PacRim Energy NL, have set out to complete a seven well onshore drilling program within this block this year. The companies are testing two modest shallow gas plays, Libertad and Dalingding, and a small oil play, Maya, all in northern Cebu about 500 km southeast of Manila. Following a short discussion on the geology and exploration history of the Visayan basin, this article briefly summarizes Cophil`s ongoing Cebu onshore drilling program. Afterwards, discussion focuses on identified exploration opportunities in the basin`s offshore sector.

  19. A design exploration for Rotch Library

    E-Print Network [OSTI]

    Pieszak, Jennifer

    1983-01-01

    This thesis is a design exploration of interior vertical space and light in the context of a university architectural library. More specifically, a program for Massachusetts Institute of Technology' s Rotch Library will ...

  20. The Mission of the Mars Exploration Rovers

    ScienceCinema (OSTI)

    Grant, John [Smithsonian Institution, Washington, D.C., United States

    2010-01-08

    The Mars Exploration Rover mission was expected to last 3 months, but has continued for more than 4 years. The major science results from both rovers will be summarized.