Powered by Deep Web Technologies
Note: This page contains sample records for the topic "reserve-alaska npr-a arctic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

igure 1. Map of N. Alaska and NW Canada Showing the Locations...  

Gasoline and Diesel Fuel Update (EIA)

1. Map of Northern Alaska and Northwestern Canada Showing the Locations of the National Petroleum Reserve-Alaska (NPR-A), Arctic National Wildlife Refuge (ANWR), 1002 Area, Current...

2

Potential Oil Production from the Coastal Plain of the Arctic...  

U.S. Energy Information Administration (EIA) Indexed Site

Service. Northeast National Petroleum Reserve-Alaska Final Integrated Activity Plan Environmental Impact Statement, (Anchorage , Alaska, August, 1998). U.S. Department of...

3

Planning Amid Abundance: Alaskaís FY 2013 Budget Process  

E-Print Network [OSTI]

extreme dependence on depleting oil reserves and on federaldependence on depleting oil reserves and federal governmentReserve-Alaska (NPR-A), regarded as the most likely on-shore oil

McBeath, Jerry

2013-01-01T23:59:59.000Z

4

Arctic house  

E-Print Network [OSTI]

Currently available housing in the Arctic is limited to solutions that have been adapted from designs for less severe climates. This thesis has developed a new manner of residential construction designed specifically for ...

Turkel, Joel A. (Joel Abram), 1969-

1999-01-01T23:59:59.000Z

5

Carbon dynamics in arctic vegetation†  

E-Print Network [OSTI]

Rapid climate change in Arctic regions is of concern due to important feedbacks between the Arctic land surface and the global climate system. A large amount of organic carbon (C) is currently stored in Arctic soils; if ...

Street, Lorna Elizabeth

2011-11-24T23:59:59.000Z

6

Arctic energy resources  

SciTech Connect (OSTI)

The Arctic is a vulnerable region with immense resources. These range from the replenishable (tidal energy, hydroelectricity, wood, biomass, fish, game, and geothermal energy) to the non-replenishable (coal, minerals, natural gas, hydrocarbon deposits). But the problems of exploiting such resources without damaging the environment of the Arctic are formidable. In this book all aspects are considered: occurrence of energy resources; the technological and economic aspects of exploration and exploitation; the environmental and social impact of technological development.

Rey, L.

1983-01-01T23:59:59.000Z

7

6, 96559722, 2006 Arctic smoke  

E-Print Network [OSTI]

Discussions Arctic smoke ­ record high air pollution levels in the European Arctic due to agricultural fires into the European Arctic and caused the most severe air pollution episodes ever recorded there. This paper confirms that biomass burning (BB) was in-5 deed the source of the observed air pollution, studies the transport

Boyer, Edmond

8

Arctic ice islands  

SciTech Connect (OSTI)

The development of offshore oil and gas resources in the Arctic waters of Alaska requires offshore structures which successfully resist the lateral forces due to moving, drifting ice. Ice islands are floating, a tabular icebergs, up to 60 meters thick, of solid ice throughout their thickness. The ice islands are thus regarded as the strongest ice features in the Arctic; fixed offshore structures which can directly withstand the impact of ice islands are possible but in some locations may be so expensive as to make oilfield development uneconomic. The resolution of the ice island problem requires two research steps: (1) calculation of the probability of interaction between an ice island and an offshore structure in a given region; and (2) if the probability if sufficiently large, then the study of possible interactions between ice island and structure, to discover mitigative measures to deal with the moving ice island. The ice island research conducted during the 1983-1988 interval, which is summarized in this report, was concerned with the first step. Monte Carlo simulations of ice island generation and movement suggest that ice island lifetimes range from 0 to 70 years, and that 85% of the lifetimes are less then 35 years. The simulation shows a mean value of 18 ice islands present at any time in the Arctic Ocean, with a 90% probability of less than 30 ice islands. At this time, approximately 34 ice islands are known, from observations, to exist in the Arctic Ocean, not including the 10-meter thick class of ice islands. Return interval plots from the simulation show that coastal zones of the Beaufort and Chukchi Seas, already leased for oil development, have ice island recurrences of 10 to 100 years. This implies that the ice island hazard must be considered thoroughly, and appropriate safety measures adopted, when offshore oil production plans are formulated for the Alaskan Arctic offshore. 132 refs., 161 figs., 17 tabs.

Sackinger, W.M.; Jeffries, M.O.; Lu, M.C.; Li, F.C.

1988-01-01T23:59:59.000Z

9

Recent Arctic Sea Ice Variability: Connections to the Arctic Oscillation and the ENSO  

E-Print Network [OSTI]

Nin~o- Southern Oscillation (ENSO) produce similar ice changes in the western Arctic, but opposite iceRecent Arctic Sea Ice Variability: Connections to the Arctic Oscillation and the ENSO Jiping Liu; accepted 20 April 2004; published 13 May 2004. [1] Trends in the satellite-derived Arctic sea ice

10

Time varying arctic climate change amplification  

SciTech Connect (OSTI)

During the past 130 years the global mean surface air temperature has risen by about 0.75 K. Due to feedbacks -- including the snow/ice albedo feedback -- the warming in the Arctic is expected to proceed at a faster rate than the global average. Climate model simulations suggest that this Arctic amplification produces warming that is two to three times larger than the global mean. Understanding the Arctic amplification is essential for projections of future Arctic climate including sea ice extent and melting of the Greenland ice sheet. We use the temperature records from the Arctic stations to show that (a) the Arctic amplification is larger at latitudes above 700 N compared to those within 64-70oN belt, and that, surprisingly; (b) the ratio of the Arctic to global rate of temperature change is not constant but varies on the decadal timescale. This time dependence will affect future projections of climate changes in the Arctic.

Chylek, Petr [Los Alamos National Laboratory; Dubey, Manvendra K [Los Alamos National Laboratory; Lesins, Glen [DALLHOUSIE U; Wang, Muyin [NOAA/JISAO

2009-01-01T23:59:59.000Z

11

Canada's Arctic Gateway: Discussion Paper Summary  

E-Print Network [OSTI]

Canada's Arctic Gateway: Discussion Paper Summary September 2010 The following summarizes key Canada's Arctic Gateway a reality in terms of both national public policy and international presence the Government of Canada's national gateway policy framework. This discussion paper's use of the term "Arctic

Martin, Jeff

12

Arctic Energy Technology Development Laboratory (Part 2)  

SciTech Connect (OSTI)

Methane (CH{sub 4}) in natural gas is a major energy source in the U.S., and is used extensively on Alaska's North Slope, including the oilfields in Prudhoe Bay, the community of Barrow, and the National Petroleum Reserve, Alaska (NPRA). Smaller villages, however, are dependent on imported diesel fuel for both power and heating, resulting in some of the highest energy costs in the U.S. and crippling local economies. Numerous CH{sub 4} gas seeps have been observed on wetlands near Atqasuk, Alaska (in the NPRA), and initial measurements have indicated flow rates of 3,000-5,000 ft{sup 3} day{sup -1} (60-100 kg CH{sub 4} day{sup -1}). Gas samples collected in 1996 indicated biogenic origin, although more recent sampling indicated a mixture of biogenic and thermogenic gas. In this study, we (1) quantified the amount of CH{sub 4} generated by several seeps and evaluated their potential use as an unconventional gas source for the village of Atqasuk; (2) collected gas and analyzed its composition from multiple seeps several miles apart to see if the source is the same, or if gas is being generated locally from isolated biogenic sources; and (3) assessed the potential magnitude of natural CH{sub 4} gas seeps for future use in climate change modeling.

See OSTI ID Number 960443

2008-12-31T23:59:59.000Z

13

arctic ecosystems dominated: Topics by E-print Network  

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

by: Arctic Institute of North America Stable URL: http Vermont, University of 7 Improved Climate Prediction through a System Level Understanding of Arctic Terrestrial Ecosystems...

14

arctic ice islands: Topics by E-print Network  

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

analogous to the effects of the Arctic region; KEYWORDS: Arctic Ocean, ice rafting, climate change Citation: Darby, D. A., and J. F. Bischof (2004), A Holocene record of...

15

airborne arctic stratospheric: Topics by E-print Network  

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

the Arctic System Reanalysis Natalia Tilinina1 , Sergey, Vienna MOTIVATION Key role of cyclone activity in the Arctic energy and hydrological cycles Cyclones impact on sea ice...

16

arctic cloudy boundary: Topics by E-print Network  

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

the Arctic System Reanalysis Natalia Tilinina1 , Sergey, Vienna MOTIVATION Key role of cyclone activity in the Arctic energy and hydrological cycles Cyclones impact on sea ice...

17

arctic ground squirrel: Topics by E-print Network  

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

the Arctic System Reanalysis Natalia Tilinina1 , Sergey, Vienna MOTIVATION Key role of cyclone activity in the Arctic energy and hydrological cycles Cyclones impact on sea ice...

18

alesund arctic base: Topics by E-print Network  

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

the Arctic System Reanalysis Natalia Tilinina1 , Sergey, Vienna MOTIVATION Key role of cyclone activity in the Arctic energy and hydrological cycles Cyclones impact on sea ice...

19

arctic stratospheric expedition: Topics by E-print Network  

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

the Arctic System Reanalysis Natalia Tilinina1 , Sergey, Vienna MOTIVATION Key role of cyclone activity in the Arctic energy and hydrological cycles Cyclones impact on sea ice...

20

arctic ground squirrels: Topics by E-print Network  

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

the Arctic System Reanalysis Natalia Tilinina1 , Sergey, Vienna MOTIVATION Key role of cyclone activity in the Arctic energy and hydrological cycles Cyclones impact on sea ice...

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


21

Arctic sea ice extent small as never before Alerting message from the Arctic: The extent the the Arctic sea ice has reached on Sep. 8  

E-Print Network [OSTI]

Arctic sea ice extent small as never before Alerting message from the Arctic: The extent the the Arctic sea ice has reached on Sep. 8 with 4.240 million km2 a new historic minimum (Figure 1). Physicists of the University of Bremen now confirm the apprehension existing since July 2011 that the ice melt in the Arctic

Bremen, Universitšt

22

E-Print Network 3.0 - arctic animals-a review Sample Search Results  

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

ROTHROCK... and the intensification of the cyclonic circulation in the eastern Arctic Ocean. The response of Arctic sea ice... into the eastern Arctic from the Canada Basin,...

23

Next-Generation Ecosystem Experiments NGEE Arctic Quarterly Report  

E-Print Network [OSTI]

to improve representation of the Arctic in Earth System Models Topography influences snow cover, thermal

24

Arctic Solar | 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 Home5b9fcbce19 NoPublic Utilities Address: 160 East 300AlgoilEnergy InformationArcata, California: EnergyArco EnergyArctic Solar

25

ARM - Arctic Meetings of Interest  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |NovemberARMContactsARM Engineering andPlansAmountResearchArctic

26

Springtime Arctic haze contributions of submicron organic particles from European and Asian combustion sources  

E-Print Network [OSTI]

The composition of Arctic aerosol, especially during the springtime Arctic haze, may play an important role in the radiative balance of the Arctic. The contribution of organic components to Arctic haze has only recently ...

Kroll, Jesse

27

E-Print Network 3.0 - arctic environmental change Sample Search...  

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

Service for Hydrometeorology and Environmental Monitoring (Roshydomet) and, Arctic... Ocean Currents in the Arctic Basin International ... Source: Washington at Seattle,...

28

Woodgate, Arctic Ocean Circulation Page 1:13 February 2012 ARCTIC OCEAN CIRCULATION  

E-Print Network [OSTI]

deep) Bering Strait, through which about 0.8Sv (1Sv=106 m3 s-1 ) of water enters the Arctic. Properties: 206-221-3268 Accepted for Nature Education Knowledge Project, May 2012 Welcome to the Arctic Ocean Circle, contains deep (~ 4500m) basins, the slowest spreading ridges in the world, and about 15

Washington at Seattle, University of

29

Economic feasibility of shipping containers through the Arctic  

E-Print Network [OSTI]

As the Arctic ice cover continues to retreat, the possibility of regular transit through the Arctic becomes an increasing reality. Liner companies could take advantage of distance savings (up to 4000 nautical miles less ...

Pollock, Russell (Russell Clayton)

2009-01-01T23:59:59.000Z

30

Tuktoyaktuk : responsive strategies for a new Arctic urbanism  

E-Print Network [OSTI]

The Canadian Arctic is facing a set of compounding crises that will drastically impact the future of its coastal frontier. At a time when climate change is having a detrimental impact on the Arctic landscape, Northern ...

Ritchot, Pamela (Pamela Rae)

2011-01-01T23:59:59.000Z

31

Anthropogenic Impacts on Polar Bear Biology and the Arctic Ecosystem.  

E-Print Network [OSTI]

Despite its relative distance from most populated regions of the world, the Arctic has been significantly impacted by anthropogenic contamination and climate change. The entire Arctic ecosystem has been affected, with upper trophic level predators...

Jordan, John E.

2013-12-16T23:59:59.000Z

32

arctic ocean experiment: Topics by E-print Network  

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

Arctic Geosciences Websites Summary: Model predicted warming per century, Bitz et al In a global warming scenario, the Poles warm faster1 2012 Changing Arctic Ocean 506E497E -...

33

NGEE Arctic Webcam Photographs, Barrow Environmental Observatory, Barrow, Alaska  

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

The NGEE Arctic Webcam (PTZ Camera) captures two views of seasonal transitions from its generally south-facing position on a tower located at the Barrow Environmental Observatory near Barrow, Alaska. Images are captured every 30 minutes. Historical images are available for download. The camera is operated by the U.S. DOE sponsored Next Generation Ecosystem Experiments - Arctic (NGEE Arctic) project.

Bob Busey; Larry Hinzman

34

Lesson Summary Students will learn about the Arctic Beaufort Sea  

E-Print Network [OSTI]

Lesson Summary Students will learn about the Arctic Beaufort Sea and research the adaptations of people and animals in the arctic regions. They will also learn about how their actions can affect the Arctic and learn about the International Polar Year. Prior Knowledge & Skills · Research skills

Mojzsis, Stephen J.

35

Simulating Arctic Climate Warmth and Icefield Retreat in the  

E-Print Network [OSTI]

, Devon, and Meighen ice caps in the Canadian Arctic, and possibly in Camp Century (northwest Greenland the entire western Arctic from 57-N to 85-N, including Greenland and smaller scale ice caps in Iceland Project members In the future, Arctic warming and the melting of polar glaciers will be considerable

Ingůlfsson, ”lafur

36

Arctic Energy Technology Development Laboratory  

SciTech Connect (OSTI)

The Arctic Energy Technology Development Laboratory was created by the University of Alaska Fairbanks in response to a congressionally mandated funding opportunity through the U.S. Department of Energy (DOE), specifically to encourage research partnerships between the university, the Alaskan energy industry, and the DOE. The enabling legislation permitted research in a broad variety of topics particularly of interest to Alaska, including providing more efficient and economical electrical power generation in rural villages, as well as research in coal, oil, and gas. The contract was managed as a cooperative research agreement, with active project monitoring and management from the DOE. In the eight years of this partnership, approximately 30 projects were funded and completed. These projects, which were selected using an industry panel of Alaskan energy industry engineers and managers, cover a wide range of topics, such as diesel engine efficiency, fuel cells, coal combustion, methane gas hydrates, heavy oil recovery, and water issues associated with ice road construction in the oil fields of the North Slope. Each project was managed as a separate DOE contract, and the final technical report for each completed project is included with this final report. The intent of this process was to address the energy research needs of Alaska and to develop research capability at the university. As such, the intent from the beginning of this process was to encourage development of partnerships and skills that would permit a transition to direct competitive funding opportunities managed from funding sources. This project has succeeded at both the individual project level and at the institutional development level, as many of the researchers at the university are currently submitting proposals to funding agencies, with some success.

Sukumar Bandopadhyay; Charles Chamberlin; Robert Chaney; Gang Chen; Godwin Chukwu; James Clough; Steve Colt; Anthony Covescek; Robert Crosby; Abhijit Dandekar; Paul Decker; Brandon Galloway; Rajive Ganguli; Catherine Hanks; Rich Haut; Kristie Hilton; Larry Hinzman; Gwen Holdman; Kristie Holland; Robert Hunter; Ron Johnson; Thomas Johnson; Doug Kame; Mikhail Kaneveskly; Tristan Kenny; Santanu Khataniar; Abhijeet Kulkami; Peter Lehman; Mary Beth Leigh; Jenn-Tai Liang; Michael Lilly; Chuen-Sen Lin; Paul Martin; Pete McGrail; Dan Miller; Debasmita Misra; Nagendra Nagabhushana; David Ogbe; Amanda Osborne; Antoinette Owen; Sharish Patil; Rocky Reifenstuhl; Doug Reynolds; Eric Robertson; Todd Schaef; Jack Schmid; Yuri Shur; Arion Tussing; Jack Walker; Katey Walter; Shannon Watson; Daniel White; Gregory White; Mark White; Richard Wies; Tom Williams; Dennis Witmer; Craig Wollard; Tao Zhu

2008-12-31T23:59:59.000Z

37

Circumpolar Arctic Tundra Vegetation Change Is Linked  

E-Print Network [OSTI]

of Plant Biology, Michigan State University, East Lansing, Michigan Received 7 December 2009; accepted 4Circumpolar Arctic Tundra Vegetation Change Is Linked to Sea Ice Decline Uma S. Bhatt*,1 Donald A Institute, and Department of Atmospheric Sciences, University of Alaska Fairbanks, Fairbanks, Alaska

Bhatt, Uma

38

E-Print Network 3.0 - arctic ocean expedition Sample Search Results  

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

Arctic will lead to a better understanding of how the Summary: between the U.S. and Russia began with the expedition of the Bering and Chukchi Seas ( Arctic Ocean... . Arctic...

39

E-Print Network 3.0 - arctic wind technology Sample Search Results  

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

arctic wind technology Search Powered by Explorit Topic List Advanced Search Sample search results for: arctic wind technology Page: << < 1 2 3 4 5 > >> 1 NOAA's Arctic VisiON &...

40

APPLICATION OF CARBOHYDRATES AND PHENOLS AS BIOMARKERS TO STUDY DISSOLVED ORGANIC MATTER RESERVOIRS IN ARCTIC RIVERS.  

E-Print Network [OSTI]

Arctic rivers are the dominant pathways for the transport of terrestrial dissolved organic carbon to the Arctic Ocean, but knowledge of sources, transformations and transfer of organic carbon and nitrogen in Arctic river watersheds is extremely...

McMahon, Rachel

2014-01-22T23:59:59.000Z

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


41

E-Print Network 3.0 - arctic marine mammals Sample Search Results  

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

Summary: of Arctic ships include ship strikes on marine mammals, the introduction of alien species, disruption... . G. Addressing Impacts on Marine Mammals: That the Arctic...

42

E-Print Network 3.0 - arctic sediments implies Sample Search...  

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

Luminescence dating supports central Arctic Ocean cm-scale sedimentation rates... sediment cores from the central Arctic Ocean and by using an independent absolute dating...

43

Indirect and Semi-Direct Aerosol Campaign: The Impact of Arctic...  

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

Aerosol Campaign: The Impact of Arctic Aerosols on Clouds . Abstract: A comprehensive dataset of microphysical and radiative properties of aerosols and clouds in the arctic...

44

E-Print Network 3.0 - arctic marine food Sample Search Results  

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

Assessment Summary: long term effects from these changes on the Arctic marine ecosystem. Concerned over potential effects... change in the Arctic region, and determined...

45

E-Print Network 3.0 - arctic springtail megaphorura Sample Search...  

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

for Fish Resources of the Arctic Management Area... (Arctic FMP) and Amendment 29 to the Fishery Management Plan for Bering Sea Aleutian Islands King Source: NOAA Marine...

46

E-Print Network 3.0 - arctic marine environment Sample Search...  

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

Assessment Summary: long term effects from these changes on the Arctic marine ecosystem. Concerned over potential effects... change in the Arctic region, and determined...

47

E-Print Network 3.0 - arctic slope annual Sample Search Results  

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

& Permafrost Salinity Vegetation Arctic... Storage Change P + Gin -(Q + ET + Gout) S Rn - G Le + H 12;Arctic Land Water Cycle: key features Source: Houser, Paul R....

48

E-Print Network 3.0 - arctic cooling silentium Sample Search...  

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

12;Abstract The Arctic is melting ...fast. 12;IMPACTS OF A WARMING ARCTIC... 's Greenhouse Effect Thesur face cools by radiating heat energyupward. ... Source: Zender, Charles -...

49

E-Print Network 3.0 - arctic ocean archaeal Sample Search Results  

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

Andy Casper... : eukaryotic flagellates as a major component of the Arctic Ocean food web Sebastien Roy: Life in the dark... AND IN THE ARCTIC OCEAN CATHERINE VALLIRES ......

50

arctic flora origins: Topics by E-print Network  

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

combustion of fossil fuels and biomass, may have a severe impact on the sensitive Arctic climate, possibly altering the temperature profile, cloud temperature and amount, the...

51

arctic marine ecosystem: Topics by E-print Network  

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

the Bamboung marine protected area social-ecosystem. Key words Social-ecological system, climate Paris-Sud XI, Universit de 6 Perfluoroalkyl Contaminants in an Arctic Marine...

52

alaskan arctic tundra: Topics by E-print Network  

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

Alaskan arctic lake Sally MacIntyre,a,b* Geosciences Websites Summary: . In summers with cold surface temperatures, the surface energy fluxes which induce mixing by heat loss...

53

arctic charr salvelinus: Topics by E-print Network  

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

have raised concern over potential responses of Arctic charr, Salvelinus alpinus, a cold-adapted freshwateranadromous fish species in (more) Sinnatamby, Ramila Niloshini...

54

arctic char salvelinus: Topics by E-print Network  

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

have raised concern over potential responses of Arctic charr, Salvelinus alpinus, a cold-adapted freshwateranadromous fish species in (more) Sinnatamby, Ramila Niloshini...

55

arctic research station: Topics by E-print Network  

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

The Rocky Mountain Research Sta- tion is one of five 19 Z .Atmospheric Research 51 1999 4575 Cloud resolving simulations of Arctic stratus Geosciences Websites Summary: Z...

56

arctic climate system: Topics by E-print Network  

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

Alaskan arctic lake Sally MacIntyre,a,b* Geosciences Websites Summary: . In summers with cold surface temperatures, the surface energy fluxes which induce mixing by heat loss...

57

alaskan arctic coastal: Topics by E-print Network  

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

Alaskan arctic lake Sally MacIntyre,a,b* Geosciences Websites Summary: . In summers with cold surface temperatures, the surface energy fluxes which induce mixing by heat loss...

58

Potential Oil Production from the Coastal Plain of the Arctic...  

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

of Analysis ANWR Coastal Plain Assessment 3. Summary Glossary References Potential Oil Production from the Coastal Plain of the Arctic National Wildlife Refuge: Updated...

59

Potential Oil Production from the Coastal Plain of the Arctic...  

U.S. Energy Information Administration (EIA) Indexed Site

Potential Oil Production from the Coastal Plain of the Arctic National Wildlife Refuge: Updated Assessment Executive Summary This Service Report, Potential Oil Production from the...

60

arctic ocean sediments: Topics by E-print Network  

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

Is the central Arctic Ocean a sediment starved basin, University of Bergen, Norway d Byrd Polar Research Center, Ohio State University, USA Abstract Numerous short...

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


61

arctic ocean sediment: Topics by E-print Network  

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

Is the central Arctic Ocean a sediment starved basin, University of Bergen, Norway d Byrd Polar Research Center, Ohio State University, USA Abstract Numerous short...

62

arctic populations differential: Topics by E-print Network  

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

climate connection, total solar irradiance, Atlantic meridional overturning circulation, climate variability. Willie W. -h. Soon 2009-01-01 168 Arctic catastrophes in an idealized...

63

ALUMINUM DISTRIBUTIONSIN THE EURASIAN BASIN OF THE ARCTIC OCEAN  

E-Print Network [OSTI]

ALUMINUM DISTRIBUTIONSIN THE EURASIAN BASIN OF THE ARCTIC OCEAN A THESISSUBMITTEDTO THE GRADUATE Section(1994)cruiseswere analyzed for their aluminum (Al) content; these two data setswere then combined

Luther, Douglas S.

64

arctas arctic research: Topics by E-print Network  

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

Arctic. It often serves as the measuring stick for global climate change. It is where warming has been strongest in the past century, Environmental Sciences and Ecology Websites...

65

arctic study area: Topics by E-print Network  

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

Explosion At The Polar Arctic Sunrise Physics (arXiv) Summary: We attempt is to provide accumulated evidence and qualitative understanding of the associated atmospheric phenomena...

66

arctic polar vortex: Topics by E-print Network  

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

Explosion At The Polar Arctic Sunrise Physics (arXiv) Summary: We attempt is to provide accumulated evidence and qualitative understanding of the associated atmospheric phenomena...

67

Climate-derived tensions in Arctic security.  

SciTech Connect (OSTI)

Globally, there is no lack of security threats. Many of them demand priority engagement and there can never be adequate resources to address all threats. In this context, climate is just another aspect of global security and the Arctic just another region. In light of physical and budgetary constraints, new security needs must be integrated and prioritized with existing ones. This discussion approaches the security impacts of climate from that perspective, starting with the broad security picture and establishing how climate may affect it. This method provides a different view from one that starts with climate and projects it, in isolation, as the source of a hypothetical security burden. That said, the Arctic does appear to present high-priority security challenges. Uncertainty in the timing of an ice-free Arctic affects how quickly it will become a security priority. Uncertainty in the emergent extreme and variable weather conditions will determine the difficulty (cost) of maintaining adequate security (order) in the area. The resolution of sovereignty boundaries affects the ability to enforce security measures, and the U.S. will most probably need a military presence to back-up negotiated sovereignty agreements. Without additional global warming, technology already allows the Arctic to become a strategic link in the global supply chain, possibly with northern Russia as its main hub. Additionally, the multinational corporations reaping the economic bounty may affect security tensions more than nation-states themselves. Countries will depend ever more heavily on the global supply chains. China has particular needs to protect its trade flows. In matters of security, nation-state and multinational-corporate interests will become heavily intertwined.

Backus, George A.; Strickland, James Hassler

2008-09-01T23:59:59.000Z

68

BLM Arctic Field Office | 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 Office of InspectorConcentrating SolarElectricEnergyCT BiomassArnprior,Aurantia SACitas Jump Logo: BLM Arctic Field

69

Next-Generation Ecosystem Experiments NGEE Arctic Quarterly Report  

E-Print Network [OSTI]

net C uptake by terrestrial Arctic ecosystems. Predicting the fate of permafrost- sequestered carbon of these changes in the carbon cycle will depend on climate-driven changes in Arctic biogeochemical, vegetation, and hydrological processes, creating a critical feedback loop. A goal of the NGEE project is to assess the CO2

70

Tourism: A Growing Presence in an Ice Diminishing Arctic  

E-Print Network [OSTI]

Tourism: A Growing Presence in an Ice Diminishing Arctic Dr. John Snyder Strategic Studies, Inc. Centennial, Colorado #12;The Significance of Arctic Tourism · Tourism is the single largest human presence economies rely on tourism for revenue, jobs, personal income, and public finance. It's future is thus

Kuligowski, Bob

71

E-Print Network 3.0 - arctic fjord sediment Sample Search Results  

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

sediment Search Powered by Explorit Topic List Advanced Search Sample search results for: arctic fjord sediment...

72

THE SHRINKING ARCTIC ICE CAP From the IPCC* Summary For Policymakers...  

E-Print Network [OSTI]

THE SHRINKING ARCTIC ICE CAP From the IPCC* Summary For Policymakers... "Sea ice is projected] - a phenomenon sometimes referred to as "Arctic amplification". As Arctic temperatures rise, sea ice melts for the 20th century. The rate at which the modeled 21st century Arctic warming and sea ice melting occurs

73

2012 Changing Arctic Ocean 506E/497E -Lecture 17 -Woodgate Global models in the Arctic  

E-Print Network [OSTI]

;2 2012 Changing Arctic Ocean 506E/497E - Lecture 17 - Woodgate Deep waters of the Atlantic from http://sam://iodp.tamu.edu/publications/PR/303PR/images/Fig01.jpg Dickson et al, refs Denmark Strait ~ 650m deep Iceland Scotland Ridge ~ 400

Washington at Seattle, University of

74

Arctic Energy Summit | Department of Energy  

Office of Environmental Management (EM)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power Systems EngineeringDepartment of4 Federal RegisterPowerPA00133 -Archer Daniels MidlandArctic

75

arctic cloud experiment: Topics by E-print Network  

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

low-level Arctic clouds in cold seasons and have a significant impact on the surface energy budget. However, the treatment of mixed-phase clouds in most current climate models...

76

National Strategy for the Arctic Region Stakeholder Outreach...  

Energy Savers [EERE]

energy deployment in the Arctic Region. The purpose of this round is to give feedback on the elements of the draft plan. DOE encourages stakeholders to provide comments on...

77

National Strategy for the Arctic Tribal Consultation Session: Fairbanks  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well...

78

National Strategy for the Arctic Region Stakeholder Outreach Meeting: Kotzebue  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well...

79

National Strategy for the Arctic Region Tribal Consultation Session: Bethel  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well...

80

National Strategy for the Arctic Region Stakeholder Outreach Meeting: Barrow  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well...

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


81

National Strategy for the Arctic Region Stakeholder Outreach Meeting: Nome  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well...

82

National Strategy for the Arctic Region Stakeholder Outreach Meeting: Bethel  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well...

83

arctic ocean freshwater: Topics by E-print Network  

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

Geosciences Websites Summary: Model predicted warming per century, Bitz et al In a global warming scenario, the Poles warm faster1 2012 Changing Arctic Ocean 506E497E -...

84

arctic haze: Topics by E-print Network  

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

Srinivas 7 NASA ARCTAS PROJECT The Arctic. It often serves as the measuring stick for global climate change. It is where warming has been strongest in the past century,...

85

E-Print Network 3.0 - arctic european russia Sample Search Results  

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

european russia Search Powered by Explorit Topic List Advanced Search Sample search results for: arctic european russia Page: << < 1 2 3 4 5 > >> 1 NOAA's Arctic VisiON & strAtegy...

86

A Climatology of the Arctic on Mid-Tropospheric Temperature Regulation  

E-Print Network [OSTI]

The Arctic is a unique and complex environment. Many factors play a role in determining the long-term climate of the Arctic, including mesoscale weather systems and many complex ice-albedo feedback mechanisms. Previous studies determined using real...

Anthony, Jeremy Patrick

2014-06-24T23:59:59.000Z

87

E-Print Network 3.0 - arctic freshwater sediments Sample Search...  

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

12;2 Holocene sedimentation in the deep Arctic Ocean... prominently in the overall sediment budget of the Arctic Ocean. While a detailed analysis of the processes... with these...

88

E-Print Network 3.0 - arctic alaska r4d Sample Search Results  

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

for: arctic alaska r4d Page: << < 1 2 3 4 5 > >> 1 revised 122010 Alaska Cooperative Fish and Wildlife Research Unit Summary: . 1966. The recreational potential of the Arctic...

89

E-Print Network 3.0 - arctic tundra vegetation Sample Search...  

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

in arctic tundra reduced by long-term nutrient fertilization Michelle C. Mack1... in soil compared with temperate and tropical ecosystems14 . In arctic tundra, as much as 90%...

90

Small Thaw Ponds: An Unaccounted Source of Methane in the Canadian High Arctic  

E-Print Network [OSTI]

other Archaea in high Arctic peat. ISME J 2: 37Ė48. 38. HÝjmethanogenic pathways in a peat from subarctic permafrost.Canadian Arctic tundra leads to peat erosion and slumping in

2013-01-01T23:59:59.000Z

91

E-Print Network 3.0 - arctic reduces root Sample Search Results  

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

surface albedo, leading to amplified ice melting. The Arctic... , the total ice production over the Arctic Ocean is reduced (Figure 3e). In summer, a decrease in ice... What...

92

E-Print Network 3.0 - arctic regions Sample Search Results  

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

et G... in some Arctic regions in the late 1980s and early 1990s during the decline of industrial activity... of Representatives October 18, 2007 Arctic Climate Effects of Black...

93

E-Print Network 3.0 - arctic food web Sample Search Results  

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

food web Search Powered by Explorit Topic List Advanced Search Sample search results for: arctic food web Page: << < 1 2 3 4 5 > >> 1 Lesson Plan Arctic Biome Summary: in the...

94

UPb and geochemical evidence for a Cryogenian magmatic arc in central Novaya Zemlya, Arctic Russia  

E-Print Network [OSTI]

U­Pb and geochemical evidence for a Cryogenian magmatic arc in central Novaya Zemlya, Arctic Russia-0349 Oslo, Norway Introduction The High Arctic of Scandinavia and Russia consists of a collage

Svensen, Henrik

95

Review of technology for Arctic offshore oil and gas recovery. Appendices  

SciTech Connect (OSTI)

This volume contains appendices of the following: US Geological Survey Arctic operating orders, 1979; Det Noske Vertas', rules for the design, construction and inspection of offshore technology, 1977; Alaska Oil and Gas Association, industry research projects, March 1980; Arctic Petroleum Operator's Association, industry research projects, January 1980; selected additional Arctic offshore bibliography on sea ice, icebreakers, Arctic seafloor conditions, ice-structures, frost heave and structure icing.

Sackinger, W. M.

1980-06-06T23:59:59.000Z

96

E-Print Network 3.0 - arctic petroleum operators Sample Search...  

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

Conferences Covered Petroleum Abstracts, HH 101 Summary: PETROLEUM PRODUCTION & EXPLORATION ASSOCIATION LTD. (APPEA) ARCTIC AND MARINE OILSPILL PROGRAM (AMOP... GEOLOGICAL...

97

Distant origins of Arctic black carbon: A Goddard Institute for Space Studies ModelE experiment  

E-Print Network [OSTI]

[Wallace and Thompson, 2002]. The Arctic climate is especially sensitive to changes in the hydrological005296. 1. Introduction [2] The Arctic is a particularly sensitive region to global climate change. Observations and models indicate that as the climate warms, the Arctic warms most and fastest [e.g., Manabe et

98

ORIGINAL PAPER Arctic fisheries catches in Russia, USA, and Canada: baselines  

E-Print Network [OSTI]

ORIGINAL PAPER Arctic fisheries catches in Russia, USA, and Canada: baselines for neglected northern Siberia (Russia), Arctic Alaska (USA), and the Canadian Arctic, extends over seven coastal Large.e., 770,000, 89,000, and 94,000 t by Russia, USA, and Canada, respectively for the same time period

Pauly, Daniel

99

NAO influence on net sea ice production and exchanges in the Arctic region  

E-Print Network [OSTI]

NAO influence on net sea ice production and exchanges in the Arctic region Aixue Hu National Center of the net sea ice production and the sea ice exchanges between the Arctic and its adjacent seas are studied) is the major factor controlling the net sea ice production in the Arctic region since a thinning ice cover

Hu, Aixue

100

NAO influence on net sea ice production and exchanges in the Arctic region: a numerical study  

E-Print Network [OSTI]

NAO influence on net sea ice production and exchanges in the Arctic region: a numerical study Aixue The variability of net sea ice production and sea ice exchange between the Arctic and its adjacent seas export) is the major factor controlling the net sea ice production in the Arctic region since a thinning

Hu, Aixue

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


101

This Page Intentionally Left Blank Next-Generation Ecosystem Experiments (NGEE Arctic)  

E-Print Network [OSTI]

Lincoln #12;This Page Intentionally Left Blank #12;#12;Next-Generation Ecosystem Experiments--Arctic iv#12;This Page Intentionally Left Blank #12;Next-Generation Ecosystem Experiments (NGEE Arctic This Page Intentionally Left Blank #12;Next-Generation Ecosystem Experiments--Arctic Contents v CONTENTS

102

Estimating sea ice area flux across the Canadian Arctic Archipelago using enhanced AMSR-E  

E-Print Network [OSTI]

. This produced a net loss of sea ice area of about 122 √? 103 km2 or roughly 174 km3 a√?1 which is presumedEstimating sea ice area flux across the Canadian Arctic Archipelago using enhanced AMSR-E T. Agnew is used to estimate daily sea ice area fluxes between the Canadian Arctic Archipelago and the Arctic Ocean

Long, David G.

103

Surface salinity fields in the Arctic Ocean and statistical approaches to predicting anomalies and patterns  

E-Print Network [OSTI]

to changing environmental conditions. Its surface layer is a key component of the Arctic climate system, which. In this context, the Arctic Ocean surface layer is a critical indicator of climate change in the Arctic [Zaharov. Petersburg, Russia. Ivan Sudakov, Department of Mathematics, University of Utah, Salt Lake City, Utah, USA

Golden, Kenneth M.

104

September Arctic sea ice predicted to disappear near 2 warming above present  

E-Print Network [OSTI]

September Arctic sea ice predicted to disappear near 2 C global warming above present Irina; published 24 March 2012. [1] The decline of Arctic sea ice is one of the most visible signs of climate change over the past several decades. Arctic sea ice area shows large interannual variability due

Fischlin, Andreas

105

Arctic sea ice velocity field: General circulation and turbulent-like fluctuations  

E-Print Network [OSTI]

Arctic sea ice velocity field: General circulation and turbulent-like fluctuations P. Rampal,1,2 J the Arctic sea ice velocity field as the superposition of a mean field and fluctuations. We study how subtracting the mean field, are analyzed in terms of diffusion properties. Although the Arctic sea ice cover

Boyer, Edmond

106

Preliminary Geospatial Analysis of Arctic Ocean Hydrocarbon Resources  

SciTech Connect (OSTI)

Ice coverage of the Arctic Ocean is predicted to become thinner and to cover less area with time. The combination of more ice-free waters for exploration and navigation, along with increasing demand for hydrocarbons and improvements in technologies for the discovery and exploitation of new hydrocarbon resources have focused attention on the hydrocarbon potential of the Arctic Basin and its margins. The purpose of this document is to 1) summarize results of a review of published hydrocarbon resources in the Arctic, including both conventional oil and gas and methane hydrates and 2) develop a set of digital maps of the hydrocarbon potential of the Arctic Ocean. These maps can be combined with predictions of ice-free areas to enable estimates of the likely regions and sequence of hydrocarbon production development in the Arctic. In this report, conventional oil and gas resources are explicitly linked with potential gas hydrate resources. This has not been attempted previously and is particularly powerful as the likelihood of gas production from marine gas hydrates increases. Available or planned infrastructure, such as pipelines, combined with the geospatial distribution of hydrocarbons is a very strong determinant of the temporal-spatial development of Arctic hydrocarbon resources. Significant unknowns decrease the certainty of predictions for development of hydrocarbon resources. These include: 1) Areas in the Russian Arctic that are poorly mapped, 2) Disputed ownership: primarily the Lomonosov Ridge, 3) Lack of detailed information on gas hydrate distribution, and 4) Technical risk associated with the ability to extract methane gas from gas hydrates. Logistics may control areas of exploration more than hydrocarbon potential. Accessibility, established ownership, and leasing of exploration blocks may trump quality of source rock, reservoir, and size of target. With this in mind, the main areas that are likely to be explored first are the Bering Strait and Chukchi Sea, in spite of the fact that these areas do not have highest potential for future hydrocarbon reserves. Opportunities for improving the mapping and assessment of Arctic hydrocarbon resources include: 1) Refining hydrocarbon potential on a basin-by-basin basis, 2) Developing more realistic and detailed distribution of gas hydrate, and 3) Assessing the likely future scenarios for development of infrastructure and their interaction with hydrocarbon potential. It would also be useful to develop a more sophisticated approach to merging conventional and gas hydrate resource potential that considers the technical uncertainty associated with exploitation of gas hydrate resources. Taken together, additional work in these areas could significantly improve our understanding of the exploitation of Arctic hydrocarbons as ice-free areas increase in the future.

Long, Philip E.; Wurstner, Signe K.; Sullivan, E. C.; Schaef, Herbert T.; Bradley, Donald J.

2008-10-01T23:59:59.000Z

107

Evaluation of Arctic Broadband Surface Radiation Measurements  

SciTech Connect (OSTI)

The Arctic is a challenging environment for making in-situ radiation measurements. A standard suite of radiation sensors is typically designed to measure the total, direct and diffuse components of incoming and outgoing broadband shortwave (SW) and broadband thermal infrared, or longwave (LW) radiation. Enhancements can include various sensors for measuring irradiance in various narrower bandwidths. Many solar radiation/thermal infrared flux sensors utilize protective glass domes and some are mounted on complex mechanical platforms (solar trackers) that rotate sensors and shading devices that track the sun. High quality measurements require striking a balance between locating sensors in a pristine undisturbed location free of artificial blockage (such as buildings and towers) and providing accessibility to allow operators to clean and maintain the instruments. Three significant sources of erroneous data include solar tracker malfunctions, rime/frost/snow deposition on the instruments and operational problems due to limited operator access in extreme weather conditions. In this study, a comparison is made between the global and component sum (direct [vertical component] + diffuse) shortwave measurements. The difference between these two quantities (that theoretically should be zero) is used to illustrate the magnitude and seasonality of radiation flux measurement problems. The problem of rime/frost/snow deposition is investigated in more detail for one case study utilizing both shortwave and longwave measurements. Solutions to these operational problems are proposed that utilize measurement redundancy, more sophisticated heating and ventilation strategies and a more systematic program of operational support and subsequent data quality protocols.

Matsui, N.; Long, Charles N.; Augustine, J. A.; Halliwell, D.; Uttal, Taneil; Longenecker, D.; Niebergale, J.; Wendell, J.; Albee, R.

2012-02-24T23:59:59.000Z

108

The Arctic Lower Troposphere Observed Structure (ALTOS) Campaign  

SciTech Connect (OSTI)

The ALTOS campaign focuses on operating a tethered observing system for routine in situ sampling of low-level (< 2 km) Arctic clouds. It has been a long-term hope to fly tethered systems at Barrow, Alaska, but it is clear that the Federal Aviation Administration (FAA) will not permit in-cloud tether systems at Barrow, even if unmanned aerial vehicle (UAV) operations are allowed in the future. We have provided the scientific rationale for long-term, routine in situ measurements of cloud and aerosol properties in the Arctic. The existing restricted air space at Oliktok offers an opportunity to do so.

Verlinde, J

2010-10-18T23:59:59.000Z

109

arctic van test: Topics by E-print Network  

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

arctic van test First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Action Refinement in Testing with uioco...

110

Arctic EnginEEring College of Engineering and Mines  

E-Print Network [OSTI]

Arctic EnginEEring College of Engineering and Mines Department of Civil and Environmental Engineering Management. See Environmental Engineering and Environmental Quality Science. See Science Engineering 907-474-7241 http://cem.uaf.edu/cee/ MS Degree Minimum Requirements for Degree: 30 credits

Hartman, Chris

111

National Strategy for the Arctic Region Tribal Consultation Session: Unalaska  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well as other DOE-related activities in the region. DOE, in conjunction with several other federal agencies, will host seven consultation sessions between October and December 2014.

112

A new way to study the changing Arctic ecosystem  

ScienceCinema (OSTI)

Berkeley Lab scientists Susan Hubbard and Margaret Torn discuss the proposed Next Generation Ecosystem Experiment, which is designed to answer one of the most urgent questions facing researchers today: How will a changing climate impact the Arctic, and how will this in turn impact the planet's climate? More info: http://newscenter.lbl.gov/feature-stories/2011/09/14/alaska-climate-change/

Hubbard, Susan

2013-05-29T23:59:59.000Z

113

National Strategy for the Arctic Region Tribal Consultation Session: Barrow  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well as other DOE-related activities in the region. DOE, in conjunction with several other federal agencies, will host seven consultation sessions between October and December 2014.

114

National Strategy for the Arctic Region Tribal Consultation Session: Nome  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well as other DOE-related activities in the region. DOE, in conjunction with several other federal agencies, will host seven consultation sessions between October and December 2014.

115

Global warming and Arctic climate. Raymond S. Bradley  

E-Print Network [OSTI]

Global warming and Arctic climate. Raymond S. Bradley Climate System Research Center University of Massachusetts Amherst #12;How have global temperatures changed & why? 1. Average instrumental records from around the world; express all as anomalies from 1961-90 average #12;#12;Overall trend is upward ("global

Mountziaris, T. J.

116

Scaling StudieS in arctic SyStem Science  

E-Print Network [OSTI]

Science (jgrebmei@umces.edu) *Lawrence Hamilton, university of new hampshire (lawrence during the april 2006 u.S. fish and Wildlife Service (uSfWS) Walrus Survey (photo by uSfWS/brad benter in 1984 by the arctic research and Policy act (Public law 98-373, July 31, 1984; amended as Public law 101

Wagner, Diane

117

arctic energy technology: Topics by E-print Network  

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

arctic energy technology First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Energy distribution in an...

118

UnderSea Solutions, Inc. Arctic AUV Proposal  

E-Print Network [OSTI]

the conceptual design and analysis of an AUV, Autonomous Underwater Vehicle, for Arctic under-ice water sampling Electrical Design: ? Power Consumption ? Battery Requirements & Selection ? Thrust Motor Requirements for nose cone Lift points Hull Form The hydrodynamic form of the AUV determines the propulsion energy

Wood, Stephen L.

119

Review of technology for Arctic offshore oil and gas recovery  

SciTech Connect (OSTI)

The technical background briefing report is the first step in the preparation of a plan for engineering research oriented toward Arctic offshore oil and gas recovery. A five-year leasing schedule for the ice-prone waters of the Arctic offshore is presented, which also shows the projected dates of the lease sale for each area. The estimated peak production rates for these areas are given. There is considerable uncertainty for all these production estimates, since no exploratory drilling has yet taken place. A flow chart is presented which relates the special Arctic factors, such as ice and permafrost, to the normal petroleum production sequence. Some highlights from the chart and from the technical review are: (1) in many Arctic offshore locations the movement of sea ice causes major lateral forces on offshore structures, which are much greater than wave forces; (2) spray ice buildup on structures, ships and aircraft will be considerable, and must be prevented or accommodated with special designs; (3) the time available for summer exploratory drilling, and for deployment of permanent production structures, is limited by the return of the pack ice. This time may be extended by ice-breaking vessels in some cases; (4) during production, icebreaking workboats will service the offshore platforms in most areas throughout the year; (5) transportation of petroleum by icebreaking tankers from offshore tanker loading points is a highly probable situation, except in the Alaskan Beaufort; and (6) Arctic pipelines must contend with permafrost, making instrumentation necessary to detect subtle changes of the pipe before rupture occurs.

Sackinger, W. M.

1980-08-01T23:59:59.000Z

120

Good morning, everyone. I'm Martin Jeffries, Principal Editor of the Arctic Report Card and a science advisor to the U.S. Arctic  

E-Print Network [OSTI]

of the University of Virginia, and Dr. Don Perovich of Dartmouth College. They will talk about vegetation and sea to independent peer-review organized by the Arctic Monitoring and Assessment Programme (AMAP) of the Arctic Council. Key highlights from the essays are presented on the front page of the Web site, where you'll also

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


121

Collaborative Research: Towards Advanced Understanding and Predictive Capability of Climate Change in the Arctic using a High-Resolution Regional Arctic Climate System Model  

SciTech Connect (OSTI)

Primary activities are reported in these areas: climate system component studies via one-way coupling experiments; development of the Regional Arctic Climate System Model (RACM); and physical feedback studies focusing on changes in Arctic sea ice using the fully coupled model.

Lettenmaier, Dennis P

2013-04-08T23:59:59.000Z

122

E-Print Network 3.0 - arctic russia sedimentology Sample Search...  

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

russia sedimentology Search Powered by Explorit Topic List Advanced Search Sample search results for: arctic russia sedimentology Page: << < 1 2 3 4 5 > >> 1 CURRICULUM VITAE Julie...

123

Plant Root Characteristics and Dynamics in Arctic Tundra Ecosystems, 1960-2012  

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

A synthesis of the available literature on tundra root distribution and dynamics, and their role in key ecosystem processes in the Arctic.

Sullivan, Paddy; Sloan, Victoria; Warren, Jeff; McGuire, Dave; Euskirchen, Eugenie; Norby, Richard; Iversen, Colleen; Walker, Anthony; Wullschleger, Stan

124

Radiocarbon Content of CO 2 Respired from High Arctic Tundra in Northwest Greenland  

E-Print Network [OSTI]

J. E. , 2002: Survey of Greenland instrumental temperaturetypes in northwestern Greenland. Arctic, Antarctic, andfen ecosystem in NE-Greenland. Theoretical and Applied

Czimczik, Claudia I; Welker, Jeffrey M

2010-01-01T23:59:59.000Z

125

E-Print Network 3.0 - arctic ozone loss Sample Search Results  

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

Chemistry Summary: stratospheric ozone losses during cold Arctic Januaries, M. Rex, R. J. Salaw- itch, M. L. Santee, J. W. Waters... , and UARS MLS to demonstrate that the...

126

E-Print Network 3.0 - arctic marine sediments Sample Search Results  

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

Carbon Cycle in Summary: through the Arctic system, with implications for the marine sediment record. Quantitatively, sea... account for a major fraction of the 12;2 Holocene...

127

E-Print Network 3.0 - arctic shorebird system Sample Search Results  

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

Plan for Fish Resources of the Arctic Management ... Source: NOAA Marine Fisheries Review Collection: Environmental Sciences and Ecology 29 Bulletin 112 April 2007 45Jorgensen et...

128

E-Print Network 3.0 - arctic ocean supplementary Sample Search...  

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

November 3, 2009 Rules and Regulations DEPARTMENT OF COMMERCE Summary: . Global climate change is reducing the extent of sea ice in the Arctic Ocean, providing greater...

129

E-Print Network 3.0 - arctic wind energy Sample Search Results  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: arctic wind energy Page: << < 1 2 3 4 5 > >> 1 OLA PERSSON PRINCIPAL RESEARCH TOPICS Summary:...

130

E-Print Network 3.0 - arctic endemic brown Sample Search Results  

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

results for: arctic endemic brown Page: << < 1 2 3 4 5 > >> 1 Southeast Alaska Conservation Assessment -Chapter 6.7 Page 1 Endemic Mammals of the Alexander Archipelago...

131

E-Print Network 3.0 - arctic mutant peptides Sample Search Results  

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

mutant peptides Search Powered by Explorit Topic List Advanced Search Sample search results for: arctic mutant peptides Page: << < 1 2 3 4 5 > >> 1 Discrete Molecular Dynamics...

132

arctic-breeding glaucous gulls: Topics by E-print Network  

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

stress. Norwegian Polar Institute, Polar Environmental Centre, NO-9296 Troms, Norway. Tel.: 47 7775 0500; fax: 47 Bech, Claus 8 ARCTIC Sabines Gull (Xema...

133

E-Print Network 3.0 - arctic spring site Sample Search Results  

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

Faculty Office: 109 Steele Hall. Arctic Studies Office: 147 Haldeman Center ORC Source: Lotko, William - Thayer School of Engineering, Dartmouth College Collection:...

134

E-Print Network 3.0 - arctic fox alopex Sample Search Results  

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

Owl ( Nyctea scandiaca ) Repr oduction in Relation to Lemming Summary: . Competition for food between snowy owls , Nyctea scandiaca, and arctic foxes, Alopex lagopus. Zoological...

135

E-Print Network 3.0 - arctic foxes alopex Sample Search Results  

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

Owl ( Nyctea scandiaca ) Repr oduction in Relation to Lemming Summary: . Competition for food between snowy owls , Nyctea scandiaca, and arctic foxes, Alopex lagopus. Zoological...

136

E-Print Network 3.0 - arctic seabird colony Sample Search Results  

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

Environmental Sciences and Ecology 5 Latitudinal gradients in sea ice and primary production determine Arctic seabird colony Summary: Latitudinal gradients in sea ice and...

137

E-Print Network 3.0 - arctic valley findings Sample Search Results  

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

Weingartner Summary: The 2007 Bering Strait Oceanic Heat Flux and anomalous Arctic Sea-ice Retreat Rebecca A. Woodgate... Abstract: To illuminate the role of Pacific Waters in...

138

E-Print Network 3.0 - arctic sponge haliclona Sample Search Results  

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

Sample search results for: arctic sponge haliclona Page: << < 1 2 3 4 5 > >> 1 MARINE ECOLOGY PROGRESS SERIES Mar Ecol Prog Ser Summary: ). The sponges Clathrina canariensis,...

139

E-Print Network 3.0 - arctic populations affects Sample Search...  

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

prohibit, commercial fishing for Arctic fish and to ensure subsistence fishing is not affected... and uncertain population dynamics and abundance. Under the ... Source: NOAA Marine...

140

E-Print Network 3.0 - arctic ocean ice Sample Search Results  

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

Will) This chart shows the drop in ... Source: Strayer, David L. - Cary Institute of Ecosystem Studies Collection: Environmental Sciences and Ecology 14 Rapid reduction of Arctic...

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


141

E-Print Network 3.0 - arctic levels sources Sample Search Results  

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

AGENCY: National Marine Fisheries Service (NMFS), National... rule that implements the Fishery Management Plan for Fish Resources of the Arctic ... Source: NOAA Marine Fisheries...

142

E-Print Network 3.0 - arctic marine oil Sample Search Results  

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

Management Area are likely to occur from oil, gas, and mineral exploration... marine ecosystem. Concerned over potential effects on fish populations in the Arctic region, the...

143

E-Print Network 3.0 - arctic fox pups Sample Search Results  

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

. Mortality of arctic ... Source: Hayssen, Virginia - Department of Biological Sciences, Smith College Collection: Environmental Sciences and Ecology 2 Leashing the AlphaWolves:...

144

E-Print Network 3.0 - arctic troposphere northeast Sample Search...  

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

the arctic front then produced an incipient surface low. Next a jet streak in the middle troposphere crossed... January-February 1991 Published by Sigma Xi ... Source:...

145

E-Print Network 3.0 - arctic fisheries working Sample Search...  

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

Co-Editor AMSA 2009 Report Managing Director, Institute of the North Summary: Marine Tourism Key Fisheries 12;Today's Arctic Marine Use High Grade Iron Ore?? Zinc & Coal...

146

E-Print Network 3.0 - arctic offshore oil Sample Search Results  

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

damage assessment. As the Arctic Ocean becomes seasonally passable and tourism, oil and gas... forecasting of ocean storms which have serious potential to threaten marine ......

147

E-Print Network 3.0 - arctic mammalian carnivore Sample Search...  

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

Summary: locality Arctic Ocean, Si- Ur.w polaris Shaw, 1792:7. Renaming of marinus Pallas. Thallassnrctos... (Manning, 1971). Presumably the cline is similar across the Soviet...

148

Arctic daily temperature and precipitation extremes: Observed and simulated physical behavior.  

E-Print Network [OSTI]

??ARCTIC DAILY TEMPERATURE AND PRECIPITATION EXTREMES: OBSERVED AND SIMULATED PHYSICAL BEHAVIOR Justin M. Glisan Department of Geological and Atmospheric Sciences, Iowa State University, Ames, IowaÖ (more)

Glisan, Justin Michael

2012-01-01T23:59:59.000Z

149

Arctic sea ice modeling with the material-point method.  

SciTech Connect (OSTI)

Arctic sea ice plays an important role in global climate by reflecting solar radiation and insulating the ocean from the atmosphere. Due to feedback effects, the Arctic sea ice cover is changing rapidly. To accurately model this change, high-resolution calculations must incorporate: (1) annual cycle of growth and melt due to radiative forcing; (2) mechanical deformation due to surface winds, ocean currents and Coriolis forces; and (3) localized effects of leads and ridges. We have demonstrated a new mathematical algorithm for solving the sea ice governing equations using the material-point method with an elastic-decohesive constitutive model. An initial comparison with the LANL CICE code indicates that the ice edge is sharper using Materials-Point Method (MPM), but that many of the overall features are similar.

Peterson, Kara J.; Bochev, Pavel Blagoveston

2010-04-01T23:59:59.000Z

150

Producing Light Oil from a Frozen Reservoir: Reservoir and Fluid Characterization of Umiat Field, National Petroleum Reserve, Alaska  

SciTech Connect (OSTI)

Umiat oil field is a light oil in a shallow, frozen reservoir in the Brooks Range foothills of northern Alaska with estimated oil-in-place of over 1 billion barrels. Umiat field was discovered in the 1940ís but was never considered viable because it is shallow, in the permafrost, and far from any transportation infrastructure. The advent of modern drilling and production techniques has made Umiat and similar fields in northern Alaska attractive exploration and production targets. Since 2008 UAF has been working with Renaissance Alaska Inc. and, more recently, Linc Energy, to develop a more robust reservoir model that can be combined with rock and fluid property data to simulate potential production techniques. This work will be used to by Linc Energy as they prepare to drill up to 5 horizontal wells during the 2012-2013 drilling season. This new work identified three potential reservoir horizons within the Cretaceous Nanushuk Formation: the Upper and Lower Grandstand sands, and the overlying Ninuluk sand, with the Lower Grandstand considered the primary target. Seals are provided by thick interlayered shales. Reserve estimates for the Lower Grandstand alone range from 739 million barrels to 2437 million barrels, with an average of 1527 million bbls. Reservoir simulations predict that cold gas injection from a wagon-wheel pattern of multilateral injectors and producers located on 5 drill sites on the crest of the structure will yield 12-15% recovery, with actual recovery depending upon the injection pressure used, the actual Kv/Kh encountered, and other geologic factors. Key to understanding the flow behavior of the Umiat reservoir is determining the permeability structure of the sands. Sandstones of the Cretaceous Nanushuk Formation consist of mixed shoreface and deltaic sandstones and mudstones. A core-based study of the sedimentary facies of these sands combined with outcrop observations identified six distinct facies associations with distinctive permeability trends. The Lower Grandstand sand consists of two coarsening-upward shoreface sands sequences while the Upper Grandstand consists of a single coarsening-upward shoreface sand. Each of the shoreface sands shows a distinctive permeability profile with high horizontal permeability at the top getting progressively poorer towards the base of the sand. In contrast, deltaic sandstones in the overlying Ninuluk are more permeable at the base of the sands, with decreasing permeability towards the sand top. These trends impart a strong permeability anisotropy to the reservoir and are being incorporated into the reservoir model. These observations also suggest that horizontal wells should target the upper part of the major sands. Natural fractures may superimpose another permeability pattern on the Umiat reservoir that need to be accounted for in both the simulation and in drilling. Examination of legacy core from Umiat field indicate that fractures are present in the subsurface, but don't provide information on their orientation and density. Nearby surface exposures of folds in similar stratigraphy indicate there are at least three possible fracture sets: an early, N/S striking set that may predate folding and two sets possibly related to folding: an EW striking set of extension fractures that are parallel to the fold axes and a set of conjugate shear fractures oriented NE and NW. Analysis of fracture spacing suggests that these natural fractures are fairly widely spaced (25-59 cm depending upon the fracture set), but could provide improved reservoir permeability in horizontal legs drilled perpendicular to the open fracture set. The phase behavior of the Umiat fluid needed to be well understood in order for the reservoir simulation to be accurate. However, only a small amount of Umiat oil was available; this oil was collected in the 1940ís and was severely weathered. The composition of this Ďdeadí Umiat fluid was characterized by gas chromatography. This analysis was then compared to theoretical Umiat composition derived using the Pedersen method with original Umiat

Hanks, Catherine

2012-12-31T23:59:59.000Z

151

National Strategy for the Arctic Region Stakeholder Outreach Meeting: Unalaska  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well as other DOE-related activities in the region. DOE, in conjunction with several other federal agencies, will host seven tribal consultation sessions and seven stakeholder outreach meetings between October and December 2014.

152

Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment  

SciTech Connect (OSTI)

Mixed-phase arctic stratus clouds are the predominant cloud type in the Arctic (Curry et al. 2000) and through various feedback mechanisms exert a strong influence on the Arctic climate. Perhaps one of the most intriguing of their features is that they tend to have liquid tops that precipitate ice. Despite the fact that this situation is colloidally unstable, these cloud systems are quite long lived - from a few days to over a couple of weeks. It has been hypothesized that mixed-phase clouds are maintained through a balance between liquid water condensation resulting from the cloud-top radiative cooling and ice removal by precipitation (Pinto 1998; Harrington et al. 1999). In their modeling study Harrington et al. (1999) found that the maintenance of this balance depends strongly on the ambient concentration of ice forming nucleus (IFN). In a follow-up study, Jiang et al. (2002), using only 30% of IFN concentration predicted by Meyers et al. (1992) IFN parameterization were able to obtain results similar to the observations reported by Pinto (1998). The IFN concentration measurements collected during the Mixed-Phase Arctic Cloud Experiment (M-PACE), conducted in October 2004 over the North Slope of Alaska and the Beaufort Sea (Verlinde et al. 2005), also showed much lower values then those predicted (Prenne, pers. comm.) by currently accepted ice nucleation parameterizations (e.g. Meyers et al. 1992). The goal of this study is to use the extensive IFN data taken during M-PACE to examine what effects low IFN concentrations have on mesoscale cloud structure and coastal dynamics.

Avramov, A.; Harringston, J.Y.; Verlinde, J.

2005-03-18T23:59:59.000Z

153

National Strategy for the Arctic Region Stakeholder Outreach Meeting: Fairbanks  

Broader source: Energy.gov [DOE]

DOE is seeking input from federally recognized Alaska Native Tribes and Alaska Native corporations on a 10-year implementation plan as part of the National Strategy for the Arctic Region, as well as other DOE-related activities in the region. DOE, in conjunction with several other federal agencies, will host seven tribal consultation sessions and seven stakeholder outreach meetings between October and December 2014.

154

Planning the Next Generation of Arctic Ecosystem Experiments  

SciTech Connect (OSTI)

Climate Change Experiments in High-Latitude Ecosystems; Fairbanks, Alaska, 13-14 October 2010; A 2-day climate change workshop was held at the International Arctic Research Center, University of Alaska Fairbanks. The workshop, sponsored by Biological and Environmental Research, Office of Science, U.S. Department of Energy (DOE), was attended by 45 subject matter experts from universities, DOE national laboratories, and other federal and nongovernmental organizations. The workshop sought to engage the Arctic science community in planning for a proposed Next-Generation Ecosystem Experiments (NGEE-Arctic) project in Alaska (http:// ngee.ornl.gov/). The goal of this activity is to provide data, theory, and models to improve representations of high-latitude terrestrial processes in Earth system models. In particular, there is a need to better understand the processes by which warming may drive increased plant productivity and atmospheric carbon uptake and storage in biomass and soils, as well as those processes that may drive an increase in the release of methane (CH{sub 4}) and carbon dioxide (CO{sub 2}) through microbial decomposition of soil carbon stored in thawing permafrost. This understanding is required to quantify the important feedback mechanisms that define the role of terrestrial processes in regional and global climate.

Hinzman, Larry D [International Arctic Research Center; Wilson, Cathy [Los Alamos National Laboratory (LANL)

2011-01-01T23:59:59.000Z

155

Investigation of Microphysical Parameterizations of Snow and Ice in Arctic Clouds during M-PACE through ModelObservation Comparisons  

E-Print Network [OSTI]

Investigation of Microphysical Parameterizations of Snow and Ice in Arctic Clouds during M the microphysical properties of Arctic mixed-phase stratocumulus. Intensive measurements taken during the Department of Energy Atmospheric Radiation Measurement Program Mixed-Phase Arctic Cloud Experiment (M

Solomon, Amy

156

2012 Changing Arctic Ocean 506E/497E -Lecture 1 -Woodgate What makes the  

E-Print Network [OSTI]

"? Decreasing Ice cover Local communities subsistence Arctic Shipping Routes? Oil/Gas Exploration Links - follows slopes and ridges - quite weak (strongest flows=eddies) - separates from slopes .. somehow - cools penetration into Arctic except through North Atlantic due to fairly zonal steering and blocking by land masses

Washington at Seattle, University of

157

Duffy et al.: Arctic Tern migration over Patagonia 155 Marine Ornithology 41: 155159 (2013)  

E-Print Network [OSTI]

Duffy et al.: Arctic Tern migration over Patagonia 155 Marine Ornithology 41: 155­159 (2013 productive offshore waters of Argentinian Patagonia. We then explore possible reasons for this behavior-ANDEAN PASSAGE OF MIGRATING ARCTIC TERNS OVER PATAGONIA DAVID CAMERON DUFFY1 , ALY MCKNIGHT2 & DAVID B. IRONS2 1

Duffy, David Cameron

158

The Arctic Ocean carbon sink G.A. MacGilchrist a,n  

E-Print Network [OSTI]

Carbon sequestration Biological pump a b s t r a c t We present observation based estimatesThe Arctic Ocean carbon sink G.A. MacGilchrist a,n , A.C. Naveira Garabato a , T. Tsubouchi b , S January 2014 Keywords: Arctic Ocean Dissolved inorganic carbon Carbon budget Air­sea carbon dioxide flux

Naveira Garabato, Alberto

159

Interannual variability of Arctic sea ice export into the East Greenland Current  

E-Print Network [OSTI]

Interannual variability of Arctic sea ice export into the East Greenland Current K. A. Cox,1 J. D cycle, Arctic sea ice decline, and increasing Greenland glacial melt. Here we use new d18 O data from the East Greenland Current system at Cape Farewell and Denmark Strait to determine the relative proportions

Rohling, Eelco

160

Simulated Arctic atmospheric feedbacks associated with late summer sea ice anomalies  

E-Print Network [OSTI]

Simulated Arctic atmospheric feedbacks associated with late summer sea ice anomalies A. Rinke,1,2 K depend on regional and decadal variations in the coupled atmosphere-ocean-sea ice system. Citation: Rinke to investigate feedbacks between September sea ice anomalies in the Arctic and atmospheric conditions in autumn

Moore, John

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


161

NOAA Atlas NESDIS 58 CLIMATIC ATLAS OF THE ARCTIC SEAS 2004  

E-Print Network [OSTI]

NOAA Atlas NESDIS 58 CLIMATIC ATLAS OF THE ARCTIC SEAS 2004: Part I. Database of the Barents, Kara and Information Series, Volume 9 NOAA Atlas NESDIS 58 CLIMATIC ATLAS OF THE ARCTIC SEAS 2004: Part I. Database. INTRODUCTION................................................................................. 33 2. HISTORY

162

The Atmospheric Response to Realistic Reduced Summer Arctic Sea Ice Anomalies  

E-Print Network [OSTI]

for the continued ice melt [Polyakov et al., 2005], and recent work shows that heat from the Atlantic layer can91 The Atmospheric Response to Realistic Reduced Summer Arctic Sea Ice Anomalies Uma S. Bhatt,1 and Robert A. Tomas3 The impact of reduced Arctic summer sea ice on the atmosphere is investigated by forcing

Bhatt, Uma

163

Arctic sea ice declined rapidly to unprec-edented low extents in the summer of 2007,  

E-Print Network [OSTI]

cooling, ice extent remains far below normal. Understanding Sea Ice Loss Key factors behind this recordArctic sea ice declined rapidly to unprec- edented low extents in the summer of 2007, raising concern that the Arctic may be on the verge of a fundamental transition toward a seasonal ice cover

Clements, Craig

164

Impact of underwater-ice evolution on Arctic summer sea ice  

E-Print Network [OSTI]

Impact of underwater-ice evolution on Arctic summer sea ice Dirk Notz,1,4 Miles G. McPhee,2 M. Grae the simultaneous growth and ablation of a layer of ice between an under-ice melt pond and the underlying ocean. Such ``false bottoms'' are the only significant source of ice formation in the Arctic during summer. Analytical

Worster, M. Grae

165

ORIGINAL PAPER Sedimentary pellets as an ice-cover proxy in a High Arctic  

E-Print Network [OSTI]

ORIGINAL PAPER Sedimentary pellets as an ice-cover proxy in a High Arctic ice-covered lake Jessica-cover extent and dynamics on this perennially ice-covered, High Arctic lake. These pellets are interpreted growth. The pellets remain frozen in the ice until a summer or series of summers with reduced ice cover

Vincent, Warwick F.

166

REGULAR ARTICLE Soil nitrogen cycling rates in low arctic shrub tundra  

E-Print Network [OSTI]

of the soil microbial community in both ecosystems indicat- ed similar fungal dominance (epifluorescence landscape. Keywords 15 Nitrogen . Gross N mineralization . Arctic tundra . Litter. Soil microbial community). For example, remote sensing studies have characterized an increase in peak-season biomass across the Arctic

Grogan, Paul

167

Be production-rate calibration for the Arctic NICOLA S E. YOUNG,1,2  

E-Print Network [OSTI]

A 10 Be production-rate calibration for the Arctic NICOLA¬ī S E. YOUNG,1,2 * JOERG M. SCHAEFER,1 2013; Accepted 18 April 2013 ABSTRACT: We present a Baffin Bay 10 Be production-rate calibration published 10 Be calibration datasets to develop an Arctic 10 Be production rate. Our calibration comprises

Briner, Jason P.

168

A model of the threedimensional evolution of Arctic melt ponds on firstyear and multiyear sea ice  

E-Print Network [OSTI]

ice. In the summer the upper layers of sea ice and snow melts producing meltwater that accumulatesA model of the threedimensional evolution of Arctic melt ponds on firstyear and multiyear sea ice F in Arctic melt ponds on the surface of sea ice. An accurate estimate of the fraction of the sea ice surface

Feltham, Daniel

169

Scale Dependence and Localization of the Deformation of Arctic Sea Ice David Marsan  

E-Print Network [OSTI]

, and internal stress gradients, producing spatial gradients in the ice velocity that we refer to as deformationScale Dependence and Localization of the Deformation of Arctic Sea Ice David Marsan Laboratoire de of Arctic sea ice over a 3-day time period is performed for scales of 10 to 1000 km. The deformation field

170

Seasonal predictions of ice extent in the Arctic Ocean R. W. Lindsay,1  

E-Print Network [OSTI]

Service and the U. S. National Ice Center) produces summer outlooks of ice conditions for specific regionsSeasonal predictions of ice extent in the Arctic Ocean R. W. Lindsay,1 J. Zhang,1 A. J. Schweiger,1 29 February 2008. [1] How well can the extent of arctic sea ice be predicted for lead periods of up

Zhang, Jinlun

171

Multiple equilibria and abrupt transitions in Arctic summer sea ice extent  

E-Print Network [OSTI]

, version 3 (CCSM3). The resulting nonlinear equations produce abrupt sea ice transitions resembling thoseMultiple equilibria and abrupt transitions in Arctic summer sea ice extent William J. Merryfield monograph "Arctic Sea Ice Decline", 19 October 2007 Corresponding author address: Dr. William Merryfield

Monahan, Adam Hugh

172

On the Microphysical Representation of Observed Arctic Mixed-Phase Clouds  

E-Print Network [OSTI]

On the Microphysical Representation of Observed Arctic Mixed-Phase Clouds Paquita Zuidema, Paul Lawson, Hugh Morrison U of Miami/SPEC, Inc. Boulder CO/NCAR #12;Arctic clouds are often: mixed-phase (ie. both ice + supercooled water) yet long-lasting (despite disequilibrium) #12;why? - are ice nuclei over

Zuidema, Paquita

173

Moisture budget of the Arctic atmosphere from TOVS satellite data David G. Groves  

E-Print Network [OSTI]

and radiative heating of the atmosphere. These, in turn, affect surface temperature, ice growth and melt and hemispheric atmospheric processes affect the Arctic Ocean. The lack of humidity data over the Arctic Ocean. Our method yields an average annual net precipitation of 15.1 cm yrņ1 over the polar cap (poleward

Francis, Jennifer

174

Melting of small Arctic ice caps observed from ERS scatterometer time series  

E-Print Network [OSTI]

Melting of small Arctic ice caps observed from ERS scatterometer time series Laurence C. Smith,1 of melt onset can be observed over small ice caps, as well as the major ice sheets and multi-year sea ice for 14 small Arctic ice caps from 1992≠2000. Interannual and regional variability in the timing of melt

Smith, Laurence C.

175

The Arctic Oscillation, climate change and the effects on precipitation in Israel  

E-Print Network [OSTI]

in the Mediterranean basin. © 2013 Elsevier B.V. All rights reserved. Keywords: Climate change Arctic Oscillation) investigated the effect of climate change on water resources of Eastern Mediterranean and Middle East regionThe Arctic Oscillation, climate change and the effects on precipitation in Israel Amir Givati b

Daniel, Rosenfeld

176

JP2.3 CLOUD RADIATIVE HEATING RATE FORCING FROM PROFILES OF RETRIEVED ARCTIC CLOUD MICROPHYSICS  

E-Print Network [OSTI]

JP2.3 CLOUD RADIATIVE HEATING RATE FORCING FROM PROFILES OF RETRIEVED ARCTIC CLOUD MICROPHYSICS surface. In 1997-1998, a large multi-agency effort made the Surface Heat Budget of the Arctic (SHEBA with the ice pack in the Beaufort and Chukchi Seas for one year. Surface-based remote sensors generated

Shupe, Matthew

177

U.S. Arctic Research Policy: What do we need to know now?  

E-Print Network [OSTI]

;11 September 2007 Arctic ice retreat ­ minimum coverage and thickness #12;Carbon dioxide climbs #12;Methane: mitigation, adaptation, Arctic feedbacks, alternative energy, sequestration, Black Carbon Task Force · Involve indigenous communities in decisions · Enhance scientific monitoring and research into local

Kuligowski, Bob

178

An energy-diagnostics intercomparison of coupled ice-ocean Arctic models  

E-Print Network [OSTI]

An energy-diagnostics intercomparison of coupled ice-ocean Arctic models Petteri Uotila a,*, David. Understanding the Arctic Ocean energy balance is important because it can strengthen our understanding for Atmosphere-Ocean Science, Courant Institute of Mathematical Sciences, New York University, NYU, 200 Water

Zhang, Jinlun

179

The 2004 North Slope of Alaska Arctic Winter Radiometric Experiment  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2 and NbSe2 .2004 North Slope of Alaska Arctic Winter

180

ARM - Field Campaign - FIRE-Arctic Cloud Experiment/SHEBA  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered¬ČPNGExperience4AJ01)3,Cloud ODgovCampaignsFIRE-Arctic Cloud Experiment/SHEBA ARM

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


181

Age characteristics in a multidecadal Arctic sea ice simulation  

SciTech Connect (OSTI)

Results from adding a tracer for age of sea ice to a sophisticated sea ice model that is widely used for climate studies are presented. The consistent simulation of ice age, dynamics, and thermodynamics in the model shows explicitly that the loss of Arctic perennial ice has accelerated in the past three decades, as has been seen in satellite-derived observations. Our model shows that the September ice age average across the Northern Hemisphere varies from about 5 to 8 years, and the ice is much younger (about 2--3 years) in late winter because of the expansion of first-year ice. We find seasonal ice on average comprises about 5% of the total ice area in September, but as much as 1.34 x 10{sup 6} km{sup 2} survives in some years. Our simulated ice age in the late 1980s and early 1990s declined markedly in agreement with other studies. After this period of decline, the ice age began to recover, but in the final years of the simulation very little young ice remains after the melt season, a strong indication that the age of the pack will again decline in the future as older ice classes fail to be replenished. The Arctic ice pack has fluctuated between older and younger ice types over the past 30 years, while ice area, thickness, and volume all declined over the same period, with an apparent acceleration in the last decade.

Hunke, Elizabeth C [Los Alamos National Laboratory; Bitz, Cecllia M [UNIV. OF WASHINGTON

2008-01-01T23:59:59.000Z

182

Heavy Metal Contamination in the Taimyr Peninsula, Siberian Arctic  

SciTech Connect (OSTI)

The Taimyr Peninsula is directly north of the world's largest heavy metal smelting complex (Norilsk, Russia). Despite this proximity, there has been little research to examine the extent of contamination of the Taimyr Peninsula. We analyzed heavy metal concentrations in lichen (Cetraria cucullata), moss (Hylocomium splendens), soils, lake sediment, freshwater fish (Salvelinus alpinus, Lota lota, and Coregonus spp.) and collared lemming (Dicrostonyx torquatus) from 13 sites between 30 and 300 km from Norilsk. Element concentrations were low in both C. cucullata and H. splendens, although concentrations of Al, Fe, Cu, Ni, and Pb were significantly higher than those in Arctic Alaska, probably due to natural differences in the geochemical environments. Inorganic surface soils had significantly higher concentrations of Cd, Zn, Pb, and Mg than inorganic soils at depth, although a lake sediment core from the eastern Taimyr Peninsula indicated no recent enrichment by atmospherically transported elements. Tissue concentrations of heavy metals in fish and lemming were not elevated relative to other Arctic sites. Our results show that the impact of the Norilsk smelting complex is primarily localized rather than regional, and does not extend northward beyond 100 km.

Allen-Gil, Susan M.; Ford, Jesse; Lasorsa, Brenda K.; Monetti, Matthew; Vlasova, Tamara; Landers, Dixon H.

2003-01-01T23:59:59.000Z

183

Status of Wind-Diesel Applications in Arctic Climates: Preprint  

SciTech Connect (OSTI)

The rising cost of diesel fuel and the environmental regulation for its transportation, use, and storage, combined with the clear impacts of increased arctic temperatures, is driving remote communities to examine alternative methods of providing power. Over the past few years, wind energy has been increasingly used to reduce diesel fuel consumption, providing economic, environmental, and security benefits to the energy supply of communities from Alaska to Antarctica. This summary paper describes the current state of wind-diesel systems, reviews the operation of wind-diesel plants in cold climates, discusses current research activities pertaining to these systems, and addresses their technical and commercial challenges. System architectures, dispatch strategies, and operating experience from a variety of wind-diesel systems in Alaska will be reviewed. Specific focus will also be given to the control of power systems with large amounts of wind generation and the complexities of replacing diesel engine waste heat with excess wind energy, a key factor in assessing power plants for retrofit. A brief overview of steps for assessing the viability of retrofitting diesel power systems with wind technologies will also be provided. Because of the large number of isolated diesel minigrids, the market for adding wind to these systems is substantial, specifically in arctic climates and on islands that rely on diesel-only power generation.

Baring-Gould, I.; Corbus, D.

2007-12-01T23:59:59.000Z

184

E-Print Network 3.0 - arctic science conference Sample Search...  

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

science conference Search Powered by Explorit Topic List Advanced Search Sample search results for: arctic science conference Page: << < 1 2 3 4 5 > >> 1 RECIEL 17 (1) 2008. ISSN...

185

arctic mixed-phase clouds: Topics by E-print Network  

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

low-level Arctic clouds in cold seasons and have a significant impact on the surface energy budget. However, the treatment of mixed-phase clouds in most current climate models...

186

E-Print Network 3.0 - arctic offshore drilling Sample Search...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: arctic offshore drilling Page: << < 1 2 3 4 5 > >> 1 Free & open to the public For more information,...

187

Assessing the Predictability of the Beaufort Sea Minimum Ice Extent in a Changing Arctic Climate Regime  

E-Print Network [OSTI]

Understanding the climatic drivers of changes in sea ice extent in the Arctic has become increasingly important as record minima in the September sea ice extent continue to be reached. This research therefore addresses the question of which synoptic...

Quirk, Laura Marie

2014-04-25T23:59:59.000Z

188

E-Print Network 3.0 - arctic foxes vulpes Sample Search Results  

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

2 the american naturalist february 2008 Spatial Patterns and Dynamic Responses of Arctic Food Webs Summary: ) and the red fox (Vulpes vulpes) are present in low numbers. The most...

189

E-Print Network 3.0 - arctic fox vulpes Sample Search Results  

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

2 the american naturalist february 2008 Spatial Patterns and Dynamic Responses of Arctic Food Webs Summary: ) and the red fox (Vulpes vulpes) are present in low numbers. The most...

190

Building skills : a construction trades training facility for the eastern Canadian Arctic  

E-Print Network [OSTI]

On April 1, 1999, the Inuit of the Eastern Canadian Arctic achieved sovereignty over a new territory, Nunavut, envisioning economic self-reliance, political self-determination, and renewal of confidence in Inuit community. ...

Roszler, Sarah Katherine, 1977-

2005-01-01T23:59:59.000Z

191

Black carbon in Arctic snow and its effect on surface albedo  

E-Print Network [OSTI]

large areas of snow are exposed to significant solar energy (snow albedo is less important in winter Sheet in both spring and summer Non-Arctic snow - Great Plains of North America - Steppes of Asia

192

Recent Changes in Arctic Vegetation: Satellite Observations and Simulation Model Predictions  

E-Print Network [OSTI]

Chapter 2 Recent Changes in Arctic Vegetation: Satellite Observations and Simulation Model with a combination of satellite observations (Fig. 2.1) and field mea- surements, as projected by simulation modeling

Bhatt, Uma

193

Real-time processing of remote sensor data as applied to Arctic ice classification  

E-Print Network [OSTI]

REAL-TIME PROCESSING OF REMOTE SENSOR DATA AS APPLIED TO ARCTIC ICE CLASSIFICATION A Thesis by JAMES AUSTIN PERMENTER partial ! Submitted to the Graduate College of Texas A)M University in fulfillment of the requirement for the degree... of MASTER OF SCIENCE December 1973 Major Subject: Electrical Engineering REAL-TIME PROCESSING OF REMOTE SENSOR DATA AS APPLIED TO ARCTIC ICE CLASSIFICATION A Thesis by James Austin Permenter Approved as to style and content by: ] ( rman of Commi...

Permenter, James Austin

1973-01-01T23:59:59.000Z

194

Development, sensitivity analysis, and uncertainty quantification of high-fidelity arctic sea ice models.  

SciTech Connect (OSTI)

Arctic sea ice is an important component of the global climate system and due to feedback effects the Arctic ice cover is changing rapidly. Predictive mathematical models are of paramount importance for accurate estimates of the future ice trajectory. However, the sea ice components of Global Climate Models (GCMs) vary significantly in their prediction of the future state of Arctic sea ice and have generally underestimated the rate of decline in minimum sea ice extent seen over the past thirty years. One of the contributing factors to this variability is the sensitivity of the sea ice to model physical parameters. A new sea ice model that has the potential to improve sea ice predictions incorporates an anisotropic elastic-decohesive rheology and dynamics solved using the material-point method (MPM), which combines Lagrangian particles for advection with a background grid for gradient computations. We evaluate the variability of the Los Alamos National Laboratory CICE code and the MPM sea ice code for a single year simulation of the Arctic basin using consistent ocean and atmospheric forcing. Sensitivities of ice volume, ice area, ice extent, root mean square (RMS) ice speed, central Arctic ice thickness, and central Arctic ice speed with respect to ten different dynamic and thermodynamic parameters are evaluated both individually and in combination using the Design Analysis Kit for Optimization and Terascale Applications (DAKOTA). We find similar responses for the two codes and some interesting seasonal variability in the strength of the parameters on the solution.

Peterson, Kara J.; Bochev, Pavel Blagoveston; Paskaleva, Biliana S.

2010-09-01T23:59:59.000Z

195

90 4,000 Meters under the Ice The Arctic is one of the habitats undergoing the most  

E-Print Network [OSTI]

PlanckResearch 89 RUSSIA Special RUSSIA Special #12;#12;TEXT MAREN EMMERICH The Arctic is one of the habitats

196

Dynamics of Arctic and Sub-Arctic Climate and Atmospheric Circulation: Diagnosis of Mechanisms and Biases Using Data Assimilation  

SciTech Connect (OSTI)

The overall goal of work performed under this grant is to enhance understanding of simulations of present-day climate and greenhouse gas-induced climate change. The examination of present-day climate also includes diagnostic intercomparison of model simulations and observed mean climate and climate variability using reanalysis and satellite datasets. Enhanced understanding is desirable 1) as a prerequisite for improving simulations; 2) for assessing the credibility of model simulations and their usefulness as tools for decision support; and 3) as a means to identify robust behaviors which commonly occur over a wide range of models, and may yield insights regarding the dominant physical mechanisms which determine mean climate and produce climate change. A further objective is to investigate the use of data assimilation as a means for examining and correcting model biases. Our primary focus is on the Arctic, but the scope of the work was expanded to include the global climate system.

Eric T. DeWeaver

2010-02-17T23:59:59.000Z

197

Dynamics of Arctic and Sub-Arctic Climate and Atmospheric Circulation: Diagnosis of Mechanisms and Biases Using Data Assimilation  

SciTech Connect (OSTI)

This is the final report for DOE grant DE-FG02-07ER64434 to Eric DeWeaver at the University of Wisconsin-Madison. The overall goal of work performed under this grant is to enhance understanding of simulations of present-day climate and greenhouse gas-induced climate change. Enhanced understanding is desirable 1) as a prerequisite for improving simulations; 2) for assessing the credibility of model simulations and their usefulness as tools for decision support; and 3) as a means to identify robust behaviors which commonly occur over a wide range of models, and may yield insights regarding the dominant physical mechanisms which determine mean climate and produce climate change. A furthe objective is to investigate the use of data assimilation as a means for examining and correcting model biases. Our primary focus is on the Arctic, but the scope of the work was expanded to include the global climate system to the extent that research targets of opportunity present themselves. Research performed under the grant falls into five main research areas: 1) a study of data assimilation using an ensemble filter with the atmospheric circulation model of the National Center for Atmospheric Research, in which both conventional observations and observations of the refraction of radio waves from GPS satellites were used to constrain the atmospheric state of the model; 2) research on the likely future status of polar bears, in which climate model simluations were used to assess the effectiveness of climate change mitigation efforts in preserving the habitat of polar bears, now considered a threatened species under global warming; 3) as assessment of the credibility of Arctic sea ice thickness simulations from climate models; 4) An examination of the persistence and reemergence of Northern Hemisphere sea ice area anomalies in climate model simulations and in observations; 5) An examination of the roles played by changes in net radiation and surface relative humidity in determine the response of the hydrological cycle to global warming.

Eric T. DeWeaver

2010-01-19T23:59:59.000Z

198

Published by the Arctic Research Consortium of the United States 3535 College Road Suite 101 Fairbanks, AK 99709 Arctic Research at the University of Northern British Columbia  

E-Print Network [OSTI]

· Fairbanks, AK 99709 Arctic Research at the University of Northern British Columbia Establishedin1994 Columbia Prince George Campus 3333 University Way Prince George, BC V2N 4Z9 Canada 250-960-5555 sderywithconsiderablepublicendorsementandenthusiasm,theUniver- sity of Northern British Columbia (UNBC) has grown into one of Canada's premier

Dery, Stephen

199

Concept Study: Exploration and Production in Environmentally Sensitive Arctic Areas  

SciTech Connect (OSTI)

The Alaska North Slope offers one of the best prospects for increasing U.S. domestic oil and gas production. However, this region faces some of the greatest environmental and logistical challenges to oil and gas production in the world. A number of studies have shown that weather patterns in this region are warming, and the number of days the tundra surface is adequately frozen for tundra travel each year has declined. Operators are not allowed to explore in undeveloped areas until the tundra is sufficiently frozen and adequate snow cover is present. Spring breakup then forces rapid evacuation of the area prior to snowmelt. Using the best available methods, exploration in remote arctic areas can take up to three years to identify a commercial discovery, and then years to build the infrastructure to develop and produce. This makes new exploration costly. It also increases the costs of maintaining field infrastructure, pipeline inspections, and environmental restoration efforts. New technologies are needed, or oil and gas resources may never be developed outside limited exploration stepouts from existing infrastructure. Industry has identified certain low-impact technologies suitable for operations, and has made improvements to reduce the footprint and impact on the environment. Additional improvements are needed for exploration and economic field development and end-of-field restoration. One operator-Anadarko Petroleum Corporation-built a prototype platform for drilling wells in the Arctic that is elevated, modular, and mobile. The system was tested while drilling one of the first hydrate exploration wells in Alaska during 2003-2004. This technology was identified as a potentially enabling technology by the ongoing Joint Industry Program (JIP) Environmentally Friendly Drilling (EFD) program. The EFD is headed by Texas A&M University and the Houston Advanced Research Center (HARC), and is co-funded by the National Energy Technology Laboratory (NETL). The EFD participants believe that the platform concept could have far-reaching applications in the Arctic as a drilling and production platform, as originally intended, and as a possible staging area. The overall objective of this project was to document various potential applications, locations, and conceptual designs for the inland platform serving oil and gas operations on the Alaska North Slope. The University of Alaska Fairbanks assisted the HARC/TerraPlatforms team with the characterization of potential resource areas, geotechnical conditions associated with continuous permafrost terrain, and the potential end-user evaluation process. The team discussed the various potential applications with industry, governmental agencies, and environmental organizations. The benefits and concerns associated with industry's use of the technology were identified. In this discussion process, meetings were held with five operating companies (22 people), including asset team leaders, drilling managers, HSE managers, and production and completion managers. Three other operating companies and two service companies were contacted by phone to discuss the project. A questionnaire was distributed and responses were provided, which will be included in the report. Meetings were also held with State of Alaska Department of Natural Resources officials and U.S. Bureau of Land Management regulators. The companies met with included ConcoPhillips, Chevron, Pioneer Natural Resources, Fairweather E&P, BP America, and the Alaska Oil and Gas Association.

Shirish Patil; Rich Haut; Tom Williams; Yuri Shur; Mikhail Kanevskiy; Cathy Hanks; Michael Lilly

2008-12-31T23:59:59.000Z

200

ArcticN O A A ' s A r c t i c A c t i O N P l A N Supporting the  

E-Print Network [OSTI]

Service Kate Clark National Ocean Service Pablo Clemente-Colon National Environmental Satellite directly supports the National Strategy. Advancing U.s. security interests in the Arctic requires improvedArcticN O A A ' s A r c t i c A c t i O N P l A N Supporting the national Strategy for the arctic

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


201

Air monitoring in the Arctic: Results for selected persistent organic pollutants for 1992  

SciTech Connect (OSTI)

The Arctic is generally considered to be a pristine environment and has few direct inputs of organochlorine compounds (OCs), including pesticides, herbicides, polychlorinated biphenyls, or polycyclic aromatic hydrocarbons (PAHs). In spite of this, airborne concentrations of persistent organic pollutants (POPs) are comparable to those in more populated and industrialized regions of North America and Europe. Atmospheric transport and condensation of compounds at low temperature conditions are important factors contributing to the presence of contaminants in the Arctic. A long-term program has been established to measure the airborne concentrations of POPs in the Arctic. The first station at Alert was established in January 1992. The concentrations measured in the first year of monitoring for 18 compounds that are representative of different compound classes are presented. Seasonal variations for PAHs are similar to those for Arctic haze and peak during winter. For example, in the coldest period, october to April, benzo[a]pyrene concentrations were found to average 20 pg/m{sup 3}, whereas, in contrast, during the relatively warm May to September period, average levels were 1.0 pg/m{sup 3}. For OCs, the seasonal cycle was not as pronounced as that for PAH compounds. For example, {alpha}-hexachlorocyclohexane was found at Alert at average concentrations of 62 and 57 pg/m{sup 3}, respectively, during cold and warm periods. It is postulated that air concentrations are influenced by advection from distant source regions as well as exchange with local (Arctic Ocean) surfaces.

Fellin, P.; Dougherty, D. [BOVAR Environmental, Toronto, Ontario (Canada); Barrie, L.A.; Toom, D. [Environment Canada, Toronto, Ontario (Canada); Muir, D.; Grift, N.; Lockhart, L.; Billeck, B. [Freshwater Inst., Winnipeg, Manitoba (Canada)

1996-03-01T23:59:59.000Z

202

A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo and cloud radiative forcing  

E-Print Network [OSTI]

A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo surface and sea-ice energy budgets were measured near 87.5¬įN during the Arctic Summer Cloud Ocean Study regimes, characterized by varying cloud, thermody- namic and solar properties. An initial warm, melt

Brooks, Ian M.

203

Ice Mass Balance Buoys: A tool for measuring and attributing changes in the thickness of the Arctic sea ice cover  

E-Print Network [OSTI]

Ice Mass Balance Buoys: A tool for measuring and attributing changes in the thickness of the Arctic sea ice cover Jacqueline A. Richter-Menge1 , Donald K. Perovich1 , Bruce C. Elder1 , Keran Claffey1 Abstract Recent observational and modeling studies indicate that the Arctic sea ice cover is undergoing

Rigor, Ignatius G.

204

Warming of the arctic ice-ocean system is faster than the global average since the 1960s  

E-Print Network [OSTI]

, downward longwave radiation, and therefore net heat flux. The faster warming of the arctic ice­ocean systemWarming of the arctic ice-ocean system is faster than the global average since the 1960s Jinlun Zhang Polar Science Center, Applied Physics Laboratory, College of Ocean and Fishery Sciences

Zhang, Jinlun

205

UiT The Arctic University of Norway Fakultet for biovitenskap, fiskeri og konomi -Inst. for arktisk og marin biologi  

E-Print Network [OSTI]

UiT The Arctic University of Norway Fakultet for biovitenskap, fiskeri og √łkonomi - Inst/616 The Faculty of Biosciences, Fishery and Economics, UiT The Arctic University of Norway has a PhD position and participate in field work in Norway and Russia. The candidate must have a god command of written and spoken

Uppsala Universitet

206

Effects of Changes in Arctic Lake and River Ice Terry Prowse, Knut Alfredsen, Spyros Beltaos, Barrie R. Bonsal,  

E-Print Network [OSTI]

ice in the Arctic are projected to produce a variety of effects on hydrologic, ecological, and socio impacts that are directly produced by changes in freshwater ice. The details and diversityEffects of Changes in Arctic Lake and River Ice Terry Prowse, Knut Alfredsen, Spyros Beltaos

Vincent, Warwick F.

207

Modelling the impact of superimposed ice on the mass balance of an Arctic glacier under scenarios of future climate change  

E-Print Network [OSTI]

). A consequence of climatic warming in the high Arctic will be an increase in surface melting of glaciers and ice component of the mass accumulation of many glaciers and ice caps in thModelling the impact of superimposed ice on the mass balance of an Arctic glacier under scenarios

208

Atmospheric Circulation and Its Effect on Arctic Sea Ice in CCSM3 Simulations at Medium and High Resolution*  

E-Print Network [OSTI]

the Canadian archipelago, where the T85 winds produce thicker ice than their T42 counterparts. Seasonal forcingAtmospheric Circulation and Its Effect on Arctic Sea Ice in CCSM3 Simulations at Medium and High) ABSTRACT The simulation of Arctic sea ice and surface winds changes significantly when Community Climate

Bitz, Cecilia

209

Decadal to seasonal variability of Arctic sea ice albedo  

E-Print Network [OSTI]

A controlling factor in the seasonal and climatological evolution of the sea ice cover is its albedo $\\alpha$. Here we analyze Arctic data from the Advanced Very High Resolution Radiometer (AVHRR) Polar Pathfinder and assess the seasonality and variability of broadband albedo from a 23 year daily record. We produce a histogram of daily albedo over ice covered regions in which the principal albedo transitions are seen; high albedo in late winter and spring, the onset of snow melt and melt pond formation in the summer, and fall freeze up. The bimodal late summer distribution demonstrates the combination of the poleward progression of the onset of melt with the coexistence of perennial bare ice with melt ponds and open water, which then merge to a broad peak at $\\alpha \\gtrsim $ 0.5. We find the interannual variability to be dominated by the low end of the $\\alpha$ distribution, highlighting the controlling influence of the ice thickness distribution and large-scale ice edge dynamics. The statistics obtained pro...

Agarwal, S; Wettlaufer, J S

2011-01-01T23:59:59.000Z

210

Non-nuclear submarine tankers could cost-effectively move Arctic oil and gas  

SciTech Connect (OSTI)

Before the advent of nuclear propulsion for U.S. Navy submarines, fuel cells were considered to be the next logical step forward from battery powered submarines which required recharging. But with the launching of the USS Nautilus (SSN-571) in 1954, the development of fuel-cell propulsion was sidelined by the naval community. Nearly 30 years later fuel-cell propulsion on board submarines is actually more cost-effective than the use of nuclear propulsion. In the Artic Ocean, the use of the submarine tanker has long been considered commercially appropriate because of the presence of the polar ice cap, which inhibits surface ship transport. The technical difficulty and high operating cost of Arctic icebreaking tankers are strong arguments in favor of the cheaper, more efficient submarine tanker. Transiting under the polar ice cap, the submarine tanker is not an ''Arctic'' system, but merely a submerged system. It is a system usable in any ocean around the globe where sufficient depth exists (about 65% of the global surface). Ice breakers are another story; their design only makes them useful for transit through heavy sea ice in coastal environments. Used anywhere else, such as in the open ocean or at the Arctic ice cap, they are not a cost-effective means of transport. Arctic sea ice conditions require the Arctic peculiar icebreaking tanker system to do the job the hard way-on the surface. But on the other hand, Arctic sea ice conditions are neatly set aside by the submarine tanker, which does it the energy-efficient, elegant way submerged. The submarine tanker is less expensive to build, far less expensive to operate, and does not need to be nuclear propelled.

Kumm, W.H.

1984-03-05T23:59:59.000Z

211

Annotated bibliography of the Northwest Territories action on water component of the Arctic environmental strategy  

SciTech Connect (OSTI)

Water-related research conducted under the 1991--97 Arctic Environmental Strategy resulted in the production of 215 publications listed in this bibliography. The main section sorts citations by author and then by title. All citations are annotated and are keyed to the database of the Arctic Science and Technology Information System (ASTIS). The bibliography has three indexes that refer back to the main section: Subject, geographic area, and title. Topics covered include Northwest Territories hydrology, environmental fate of contaminants, water quality, snow, the water cycle, modelling, and limnology.

Goodwin, R.

1998-01-01T23:59:59.000Z

212

Fundamental problems of modeling the dynamics of internal gravity waves with applications to the Arctic Basin  

E-Print Network [OSTI]

In this paper, we consider fundamental problems of the dynamics of internal gravity waves. We present analytical and numerical algorithms for calculating the wave fields for a set of values of the parameters, as observed in the ocean. We show that our mathematical models can describe the wave dynamics of the Arctic Basin, taking into account the actual physical characteristics of sea water, topography of its floor, etc. The numerical and analytical results show that the internal gravity waves have a significant effect on underwater sea objects in the Arctic Basin.

Vitaly V. Bulatov; Yuriy V. Vladimirov

2012-06-26T23:59:59.000Z

213

The Arctic as a test case for an assessment of climate impacts on national security.  

SciTech Connect (OSTI)

The Arctic region is rapidly changing in a way that will affect the rest of the world. Parts of Alaska, western Canada, and Siberia are currently warming at twice the global rate. This warming trend is accelerating permafrost deterioration, coastal erosion, snow and ice loss, and other changes that are a direct consequence of climate change. Climatologists have long understood that changes in the Arctic would be faster and more intense than elsewhere on the planet, but the degree and speed of the changes were underestimated compared to recent observations. Policy makers have not yet had time to examine the latest evidence or appreciate the nature of the consequences. Thus, the abruptness and severity of an unfolding Arctic climate crisis has not been incorporated into long-range planning. The purpose of this report is to briefly review the physical basis for global climate change and Arctic amplification, summarize the ongoing observations, discuss the potential consequences, explain the need for an objective risk assessment, develop scenarios for future change, review existing modeling capabilities and the need for better regional models, and finally to make recommendations for Sandia's future role in preparing our leaders to deal with impacts of Arctic climate change on national security. Accurate and credible regional-scale climate models are still several years in the future, and those models are essential for estimating climate impacts around the globe. This study demonstrates how a scenario-based method may be used to give insights into climate impacts on a regional scale and possible mitigation. Because of our experience in the Arctic and widespread recognition of the Arctic's importance in the Earth climate system we chose the Arctic as a test case for an assessment of climate impacts on national security. Sandia can make a swift and significant contribution by applying modeling and simulation tools with internal collaborations as well as with outside organizations. Because changes in the Arctic environment are happening so rapidly, a successful program will be one that can adapt very quickly to new information as it becomes available, and can provide decision makers with projections on the 1-5 year time scale over which the most disruptive, high-consequence changes are likely to occur. The greatest short-term impact would be to initiate exploratory simulations to discover new emergent and robust phenomena associated with one or more of the following changing systems: Arctic hydrological cycle, sea ice extent, ocean and atmospheric circulation, permafrost deterioration, carbon mobilization, Greenland ice sheet stability, and coastal erosion. Sandia can also contribute to new technology solutions for improved observations in the Arctic, which is currently a data-sparse region. Sensitivity analyses have the potential to identify thresholds which would enable the collaborative development of 'early warning' sensor systems to seek predicted phenomena that might be precursory to major, high-consequence changes. Much of this work will require improved regional climate models and advanced computing capabilities. Socio-economic modeling tools can help define human and national security consequences. Formal uncertainty quantification must be an integral part of any results that emerge from this work.

Taylor, Mark A.; Zak, Bernard Daniel; Backus, George A.; Ivey, Mark D.; Boslough, Mark Bruce Elrick

2008-11-01T23:59:59.000Z

214

Collaborative Research: Towards Advanced Understanding and Predictive Capability of Climate Change in the Arctic Using a High-Resolution Regional Arctic Climate Model  

SciTech Connect (OSTI)

The primary research task completed for this project was the development of the Regional Arctic Climate Model (RACM). This involved coupling existing atmosphere, ocean, sea ice, and land models using the National Center for Atmospheric Research (NCAR) Community Climate System Model (CCSM) coupler (CPL7). RACM is based on the Weather Research and Forecasting (WRF) atmospheric model, the Parallel Ocean Program (POP) ocean model, the CICE sea ice model, and the Variable Infiltration Capacity (VIC) land model. A secondary research task for this project was testing and evaluation of WRF for climate-scale simulations on the large pan-Arctic model domain used in RACM. This involved identification of a preferred set of model physical parameterizations for use in our coupled RACM simulations and documenting any atmospheric biases present in RACM.

Cassano, John [Principal Investigator

2013-06-30T23:59:59.000Z

215

COLLABORATIVE RESEARCH: TOWARDS ADVANCED UNDERSTANDING AND PREDICTIVE CAPABILITY OF CLIMATE CHANGE IN THE ARCTIC USING A HIGH-RESOLUTION REGIONAL ARCTIC CLIMATE SYSTEM MODEL  

SciTech Connect (OSTI)

The motivation for this project was to advance the science of climate change and prediction in the Arctic region. Its primary goals were to (i) develop a state-of-the-art Regional Arctic Climate system Model (RACM) including high-resolution atmosphere, land, ocean, sea ice and land hydrology components and (ii) to perform extended numerical experiments using high performance computers to minimize uncertainties and fundamentally improve current predictions of climate change in the northern polar regions. These goals were realized first through evaluation studies of climate system components via one-way coupling experiments. Simulations were then used to examine the effects of advancements in climate component systems on their representation of main physics, time-mean fields and to understand variability signals at scales over many years. As such this research directly addressed some of the major science objectives of the BER Climate Change Research Division (CCRD) regarding the advancement of long-term climate prediction.

Gutowski, William J.

2013-02-07T23:59:59.000Z

216

Carbonaceous species and humic like substances (HULIS) in Arctic snowpack during OASIS field campaign in Barrow  

E-Print Network [OSTI]

on snow albedo and arctic atmospheric chemistry. During the OASIS field campaign, in March and April 2009, Elemental Carbon (EC), Water insoluble Organic Carbon (WinOC) and Dissolved Organic Carbon (DOC) were hoar layers due to specific wind related formation mechanisms in the early season. Apart from

Sheldon, Nathan D.

217

Topographic Controls on LAI in Arctic Tundra Luke Spadavecchia -54 -2008  

E-Print Network [OSTI]

and surface energy balance, which can vary by an order of magnitude among Arctic tundra communities. We Spadavecchia - 55 - 2008 4.1 Declaration The following chapter was submitted to the Journal of Ecology and plant functional type of a tundra ecosystem'. Journal of Ecology 96(6): 1238-1251) we correct

218

Response of the Greenland-Scotland overflow to changing deep water supply from the Arctic Mediterranean  

E-Print Network [OSTI]

Response of the Greenland-Scotland overflow to changing deep water supply from the Arctic with a topographic barrier is used to study the response of the overflows across the Greenland-Scotland Ridge of the exchanges across the ridge is seen when the supply decreases. Transport variations in the East-Greenland

219

Greenland's Island Rule and the Arctic Ocean circulation by Terrence M. Joyce1,2  

E-Print Network [OSTI]

Greenland's Island Rule and the Arctic Ocean circulation by Terrence M. Joyce1,2 and Andrey made for the flow around Greenland. Godfrey's theory has been extended to permit inclusion of Bering Archipelago in the modeled flow west of Greenland. In both models, the forcing has been applied in a quasi

Joyce, Terrence M.

220

Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario  

E-Print Network [OSTI]

Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario John C. Moore1 , Annette Rinke1,2 , Xiaoyong Yu1 , Duoying Ji1 , Xuefeng Cui1 , Yan Li3 , Kari Alterskjær4 , Jón Egill Centre, Danish Meteorological Institute, Copenhagen, Denmark Abstract We analyze simulated sea ice

Robock, Alan

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


221

NAO influence on net sea ice production and exchanges in the Arctic region  

E-Print Network [OSTI]

NAO influence on net sea ice production and exchanges in the Arctic region Aixue Hu, Claes Rooth and Rainer Bleck February 18, 2003 Abstract The variability of the net sea ice production and the sea ice circulation model. The wind driven divergence (or ice flux export) is the major factor controlling the net sea

Hu, Aixue

222

NOAA's Arctic Science Days Day 1: Science, Weather and Sea Ice, and International Partnerships  

E-Print Network [OSTI]

NOAA's Arctic Science Days 1 Day 1: Science, Weather and Sea Ice, and International Partnerships 1 Observing Networks [IASOA, RUSALCA, PAG, CBMP & SAON] 2. Ed Farley (NOAA/AFSC, remote): Implications of sea ice loss on NOAA trust resources: NOAA's Loss of Sea Ice (LOSI) Program 3. Sue Moore (NOAA

223

Arctic cryosphere response in the Geoengineering Model Intercomparison Project G3  

E-Print Network [OSTI]

Arctic cryosphere response in the Geoengineering Model Intercomparison Project G3 and G4 scenarios output from the Geoengineering Model Intercomparison Project for the two most "realistic" scenarios, G4, injects 5 Tg SO2 per year. We ask whether geoengineering by injection of sulfate aerosols

Robock, Alan

224

Regional climate responses to geoengineering with tropical and Arctic SO2 injections  

E-Print Network [OSTI]

Regional climate responses to geoengineering with tropical and Arctic SO2 injections Alan Robock,1 insolation and cool Earth, has been suggested as an emergency response to geoengineer the planet in response aerosols cooling the planet, the volcano analog actually argues against geoengineering because of ozone

Robock, Alan

225

Arctic Region Evaluation of the Hydro-Thermodynamic Soil Vegetation Scheme (HTSVS)  

E-Print Network [OSTI]

Arctic Region Evaluation of the Hydro-Thermodynamic Soil Vegetation Scheme (HTSVS) Pamela Spier, University of Alaska, Fairbanks, AK Abstract This paper presents an evaluation of the Hydro. Introduction and Motivation The Hydro-Thermodynamic Soil Vegetation Scheme (HTSVS, Kramm et al. 1996, Mölders

Moelders, Nicole

226

Latitudinal gradients in sea ice and primary production determine Arctic seabird colony  

E-Print Network [OSTI]

will indirectly alter energy transfer through the pelagic food web and ultimately impact apex predators. We-based observations of sea ice concentration from the Nimbus-7 scanning multichannel microwave radiometer (SMMR, 1979 recession of high Arctic seasonal ice cover created a temporally predictable primary production bloom

Laidre, Kristin L.

227

NOAA Atlas NESDIS 58 CLIMATIC ATLAS OF THE ARCTIC SEAS 2004  

E-Print Network [OSTI]

NOAA Atlas NESDIS 58 CLIMATIC ATLAS OF THE ARCTIC SEAS 2004: Part I. Database of the Barents, Kara, and Information Service #12;World Data Center for Oceanography, Silver Spring International Ocean Atlas and Information Series, Volume 9 NOAA Atlas NESDIS 58 2004: I

228

Autonomous buoy for seismic reflection data acquisition in the inaccessible parts of the Arctic Ocean  

E-Print Network [OSTI]

Autonomous buoy for seismic reflection data acquisition in the inaccessible parts of the Arctic Instrumentation, Bergen, Norway An autonomous buoy which collects seismic reflection data and transmits to shore of the seismic buoy (thick red, green and black lines). - we have successfully developed an autonomous buoy

Kristoffersen, Yngve

229

U.S. Geological Survery Oil and Gas Resource Assessment of the Russian Arctic  

SciTech Connect (OSTI)

The U.S. Geological Survey (USGS) recently completed a study of undiscovered petroleum resources in the Russian Arctic as a part of its Circum-Arctic Resource Appraisal (CARA), which comprised three broad areas of work: geological mapping, basin analysis, and quantitative assessment. The CARA was a probabilistic, geologically based study that used existing USGS methodology, modified somewhat for the circumstances of the Arctic. New map compilation was used to identify assessment units. The CARA relied heavily on geological analysis and analog modeling, with numerical input consisting of lognormal distributions of sizes and numbers of undiscovered accumulations. Probabilistic results for individual assessment units were statistically aggregated, taking geological dependencies into account. The U.S. Department of Energy (DOE) funds were used to support the purchase of crucial seismic data collected in the Barents Sea, East Siberian Sea, and Chukchi Sea for use by USGS in its assessment of the Russian Arctic. DOE funds were also used to purchase a commercial study, which interpreted seismic data from the northern Kara Sea, and for geographic information system (GIS) support of USGS mapping of geological features, province boundaries, total petroleum systems, and assessment units used in the USGS assessment.

Donald Gautier; Timothy Klett

2008-12-31T23:59:59.000Z

230

Intercomparison of cloud model simulations of Arctic mixed-phase boundary layer clouds observed during  

E-Print Network [OSTI]

/crystal concentration also suggests the need for improved understanding of ice nucleation and its parameterizationIntercomparison of cloud model simulations of Arctic mixed-phase boundary layer clouds observed is presented. This case study is based on observations of a persistent mixed-phase boundary layer cloud

Zuidema, Paquita

231

Atlantic meridional overturning and climate response to Arctic Ocean W. R. Peltier,1  

E-Print Network [OSTI]

Atlantic meridional overturning and climate response to Arctic Ocean freshening W. R. Peltier,1 G to the response to North Atlantic freshening. Citation: Peltier, W. R., G. Vettoretti, and M. Stastna (2006 of the Atlantic by Heinrich Event 1 [Peltier, 2005]. Simi- larly, the onset of the Younger Dryas (Y-D) cold

Peltier, W. Richard

232

Megatides in the Arctic Ocean under glacial conditions Stephen D. Griffiths,1  

E-Print Network [OSTI]

Megatides in the Arctic Ocean under glacial conditions Stephen D. Griffiths,1 and W. R. Peltier1's climate and ocean circulation. Citation: Griffiths, S. D., and W. R. Peltier (2008), Megatides occurred approx- imately 26,000 years ago, since the bathymetric changes are now well constrained [Peltier

Peltier, W. Richard

233

Tracer studies of pathways and rates of meltwater transport through Arctic summer sea ice  

E-Print Network [OSTI]

Tracer studies of pathways and rates of meltwater transport through Arctic summer sea ice H. Eicken) program's field site in the northern Chukchi Sea, snow and ice meltwater flow was found to have a strong impact on the heat and mass balance of sea ice during the summer of 1998. Pathways and rates of meltwater

Eicken, Hajo

234

255FEBRUARY 2002AMERICAN METEOROLOGICAL SOCIETY | he Surface Heat Budget of the Arctic Ocean  

E-Print Network [OSTI]

that determine the surface energy budget and the sea≠ice mass balance in the Arctic (Moritz et al. 1993; Perovich of the vertical and horizontal energy exchanges within the ocean≠ice≠atmosphere system. The SHEBA pro- gram for Atmospheric Research, Boulder, Colorado; TURENNE--Canadian Coast Guard, Quebec City, Quebec, Canada; SERREZE

Shupe, Matthew

235

This chapter describes observations of continuing change in the Arctic environmental system. It is or-  

E-Print Network [OSTI]

for the longest period and largest area of ice sheet melt since at least 1978, and the highest melt rate since in the Canadian Arctic, where the rate of mass loss from small glaciers and ice caps continued to increase system. It is or- ganized into five broad sections: atmosphere, ocean, sea ice cover, land, and Greenland

Bhatt, Uma

236

Author's personal copy Latest Pleistocene and Holocene glaciation of Baffin Island, Arctic Canada: key  

E-Print Network [OSTI]

t Melting glaciers and ice caps on Baffin Island contribute roughly half of the sea-level rise from all ice future response of arctic glaciers and ice caps to climate change motivates the use of paleodata throughout the Holocene to its present margin (Barnes Ice Cap) except for two periods of rapid retreat

Briner, Jason P.

237

Although both the Arctic and Antarctic are subject to a similar annual cycle of solar  

E-Print Network [OSTI]

Although both the Arctic and Antarctic are subject to a similar annual cycle of solar radiation influence is emerging. Model simulations provided to the Intergovernmental Panel on Climate Change (IPCC. In the Antarctic, the attribution story is different. A poleward contraction and increase in circumpolar westerly

Francis, Jennifer

238

Although both the Arctic and Antarctic are subject to a similar annual cycle of solar  

E-Print Network [OSTI]

177 Although both the Arctic and Antarctic are subject to a similar annual cycle of solar radiation influence is emerging. Model sim- ulations provided to the Intergovernmen- tal Panel on Climate Change (IPCC. In the Antarctic, the attribution story is different. A poleward contraction and increase in circumpolar westerly

239

On the Relationship between Thermodynamic Structure and Cloud Top, and Its Climate Significance in the Arctic  

E-Print Network [OSTI]

inside inversion (CII)] was frequently observed at central Arctic Ocean sites, while observations from- nitudes of surface cloud warming and cooling are de- pendent upon the solar zenith angle, surface albedo-D-11-00186.1 √? 2012 American Meteor

Shupe, Matthew

240

Short-lived pollutants in the Arctic: their climate impact and possible mitigation strategies  

SciTech Connect (OSTI)

Several short-lived pollutants known to impact Arctic climate may be contributing to the accelerated rates of warming observed in this region relative to the global annually averaged temperature increase. Here, we present a summary of the short-lived pollutants that impact Arctic climate including methane, tropospheric ozone, and tropospheric aerosols. For each pollutant, we provide a description of the major sources and the mechanism of forcing. We also provide the first seasonally averaged forcing and corresponding temperature response estimates focused specifically on the Arctic. The calculations indicate that the forcings due to black carbon, methane, and tropospheric ozone lead to a positive surface temperature response indicating the need to reduce emissions of these species within and outside the Arctic. Additional aerosol species may also lead to surface warming if the aerosol is coincident with thin, low lying clouds. We suggest strategies for reducing the warming based on current knowledge and discuss directions for future research to address the large remaining uncertainties.

Menon, Surabi; Quinn, P.K.; Bates, T.S.; Baum, E.; Doubleday, N.; Fiore, A.M.; Flanner, M.; Fridlind, A.; Garrett, T.J.; Koch, D.; Menon, S.; Shindell, D.; Stohl, A.; Warren, S.G.

2007-09-24T23:59:59.000Z

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


241

Final Technical Report for Project "Improving the Simulation of Arctic Clouds in CCSM3"  

SciTech Connect (OSTI)

This project has focused on the simulation of Arctic clouds in CCSM3 and how the modeled cloud amount (and climate) can be improved substantially by altering the parameterized low cloud fraction. The new formula, dubbed 'freeezedry', alleviates the bias of excessive low clouds during polar winter by reducing the cloud amount under very dry conditions. During winter, freezedry decreases the low cloud amount over the coldest regions in high latitudes by over 50% locally and more than 30% averaged across the Arctic (Fig. 1). The cloud reduction causes an Arctic-wide drop of 15 W m{sup -2} in surface cloud radiative forcing (CRF) during winter and about a 50% decrease in mean annual Arctic CRF. Consequently, wintertime surface temperatures fall by up to 4 K on land and 2-8 K over the Arctic Ocean, thus significantly reducing the model's pronounced warm bias (Fig. 1). While improving the polar climate simulation in CCSM3, freezedry has virtually no influence outside of very cold regions (Fig. 2) or during summer (Fig. 3), which are space and time domains that were not targeted. Furthermore, the simplicity of this parameterization allows it to be readily incorporated into other GCMs, many of which also suffer from excessive wintertime polar cloudiness, based on the results from the CMIP3 archive (Vavrus et al., 2008). Freezedry also affects CCSM3's sensitivity to greenhouse forcing. In a transient-CO{sub 2} experiment, the model version with freezedry warms up to 20% less in the North Polar and South Polar regions (1.5 K and 0.5 K smaller warming, respectively) (Fig. 4). Paradoxically, the muted high-latitude response occurs despite a much larger increase in cloud amount with freezedry during non-summer months (when clouds warm the surface), apparently because of the colder modern reference climate. These results of the freezedry parameterization have recently been published (Vavrus and D. Waliser, 2008: An improved parameterization for simulating Arctic cloud amount in the CCSM3 climate model. J. Climate, 21, 5673-5687.). The article also provides a novel synthesis of surface- and satellite-based Arctic cloud observations that show how much the new freezedry parameterization improves the simulated cloud amount in high latitudes (Fig. 3). Freezedry has been incorporated into the CCSM3.5 version, in which it successfully limits the excessive polar clouds, and may be used in CCSM4. Material from this work is also appearing in a synthesis article on future Arctic cloud changes (Vavrus, D. Waliser, J. Francis, and A. Schweiger, 'Simulations of 20th and 21st century Arctic cloud amount in the global climate models assessed in the IPCC AR4', accepted in Climate Dynamics) and was used in a collaborative paper on Arctic cloud-sea ice coupling (Schweiger, A., R. Lindsay, S. Vavrus, and J. Francis, 2008: Relationships between Arctic sea ice and clouds during autumn. J. Climate, 21, 4799-4810.). This research was presented at the 2007 CCSM Annual Workshop, as well as the CCSM's 2007 Atmospheric Model Working Group and Polar Working Group Meetings. The findings were also shown at the 2007 Climate Change Prediction Program's Science Team Meeting. In addition, I served as an instructor at the International Arctic Research Center's (IARC) Summer School on Arctic Climate Modeling in Fairbanks this summer, where I presented on the challenges and techniques used in simulating polar clouds. I also contributed to the development of a new Arctic System Model by attending a workshop in Colorado this summer on this fledgling project. Finally, an outreach activity for the general public has been the development of an interactive web site () that displays Arctic cloud amount in the CMIP3 climate model archive under present and future scenarios. This site allows users to make polar and global maps of a variety of climate variables to investigate the individual and ensemble-mean GCM response to greenhouse warming and the extent to which models adequately represent Arctic clouds in the modern clima

Stephen J. Vavrus

2008-11-15T23:59:59.000Z

242

Hydraulic controls of summer Arctic pack ice albedo H. Eicken,1  

E-Print Network [OSTI]

that feedback processes involving the input of solar energy and subsequent changes in Arctic pack-ice albedo, and properties of first-year and multiyear sea ice have been studied at two field sites in the North American variability in pond fraction varying by more than a factor of 2 and hence area-averaged albedo (varying

Eicken, Hajo

243

Influence of transport and ocean ice extent on biogenic aerosol sulfur in the Arctic atmosphere  

E-Print Network [OSTI]

Influence of transport and ocean ice extent on biogenic aerosol sulfur in the Arctic atmosphere S, such as methanesulfonic acid (MSA). This study examines relationships between changes in total sea ice extent north of 70. These results suggest that a decrease in seasonal ice cover influencing other mechanisms of DMS production could

244

Comparison of surface radiative flux data sets over the Arctic Ocean Jiping Liu,1,2  

E-Print Network [OSTI]

. The reduced surface heat loss is partly offset by the reduction of solar heating due to much higher snow of these surface parameters was compared to the high-quality in situ measurements from the Surface Heat Budget; Intergovernmental Panel on Climate Change, 2001]. However, physical processes in the Arctic are not well understood

245

Migratory connectivity in Arctic geese: spring stopovers are the weak links in meeting targets for breeding  

E-Print Network [OSTI]

makes geese particularly vul- nerable to the impact of climate change. There is an increasing mismatch trends in the Arctic target areas. Keywords Capital breeding √Ā Climate change √Ā Energetic costs 119313, Russia J. Stahl Landscape Ecology Group, University of Oldenburg, 26111 Oldenburg, Germany 123 J

Kleyer, Michael

246

SHAPE-CONSTRAINED SEGMENTATION APPROACH FOR ARCTIC MULTIYEAR SEA ICE FLOE ANALYSIS  

E-Print Network [OSTI]

SHAPE-CONSTRAINED SEGMENTATION APPROACH FOR ARCTIC MULTIYEAR SEA ICE FLOE ANALYSIS Yuliya Tarabalka Research Association, MD, USA. e-mail: yuliya.tarabalka@inria.fr ABSTRACT The melting of sea ice, it is important to investigate how rapidly sea ice floes melt. For this purpose, a new TempoSeg method

Boyer, Edmond

247

Quaternary Science Reviews 21 (2002) 9971021 Responses of an arctic landscape to Lateglacial and early Holocene  

E-Print Network [OSTI]

Ltd. All rights reserved. 1. Introduction The Arctic is important to global climate because its Earth Observatory, Palisades, NY 10964, USA c Reanier and Associates, 1807 Thirty Second Avenue, Seattle to the YD are rare, suggesting that rates of paludification slowed. Immediately after 10,000 14 C yr BP

248

Relative importance of multiple factors on terrestrial loading of DOC to Arctic river networks  

SciTech Connect (OSTI)

Terrestrial carbon dynamics influence the contribution of dissolved organic carbon (DOC) to river networks in addition to controlling carbon fluxes between the land surface and the atmosphere. In this study, we use a biogeochemical process model to simulate the lateral transfer of DOC from land to the Arctic Ocean via riverine transport. We estimate that the pan-arctic watershed has contributed, on average, 32 Tg C/yr of DOC to the Arctic Ocean over the 20th century with most coming from the extensive area of boreal deciduous needle-leaved forests and forested wetlands in Eurasian watersheds. We also estimate that the rate of terrestrial DOC loading has been increasing by 0.037 Tg C/yr2 over the 20th century primarily as a result of increases in air temperatures and precipitation. These increases have been partially compensated by decreases in terrestrial DOC loading caused by wildfires. Other environmental factors (CO2 fertilization, ozone pollution, atmospheric nitrogen deposition, timber harvest, agriculture) are estimated to have relatively small effects on terrestrial DOC loading to arctic rivers. The effects of the various environmental factors on terrestrial carbon dynamics have both compensated and enhanced concurrent effects on hydrology to influence terrestrial DOC loading. Future increases in riverine DOC concentrations and export may occur from warming-induced increases in terrestrial DOC production associated with enhanced microbial metabolism and the exposure of additional organic matter from permafrost degradation along with decreases in water yield associated with warming-induced increases in evapotranspiration. Improvements in simulating terrestrial DOC loading to pan-arctic rivers in the future will require better information on the spatial distribution of precipitation and its temporal trends, carbon dynamics of larch-dominated ecosystems in eastern Siberia, and the role of industrial organic effluents on carbon budgets of rivers in western Russia.

Kicklighter, David W. [Ecosystem Center, The] [Ecosystem Center, The; Hayes, Daniel J [ORNL] [ORNL; Mcclelland, James W [University of Texas] [University of Texas; Peterson, Bruce [Marine Biological Laboratory] [Marine Biological Laboratory; Mcguire, David [University of Alaska] [University of Alaska; Melillo, Jerry [Marine Biological Laboratory] [Marine Biological Laboratory

2014-01-01T23:59:59.000Z

249

igure 1. Map of N. Alaska and NW Canada Showing the Locations of the NPR-A,  

Gasoline and Diesel Fuel Update (EIA)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"Click worksheet9,1,50022,3,,,,6,1,,781Title: Telephone:short version)ec 1827 TableB (11-19-10)Fuel

250

Breaking the Ice: Navigation in the Arctic Grace Xingxin Gao, Liang Heng, Todd Walter, and Per Enge  

E-Print Network [OSTI]

Breaking the Ice: Navigation in the Arctic Grace Xingxin Gao, Liang Heng, Todd Walter, and Per Enge (ION) Early Achievement Award. Liang Heng is a Ph.D. candidate under the guidance of Professor Per Enge

Gao, Grace Xingxin

251

A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in AirĖSea Fluxes  

E-Print Network [OSTI]

The uncertainties related to atmospheric fields in the Arctic Ocean from commonly used and recently available reanalysis products are investigated. Fields from the 1) ECMWF Interim Re-Analysis (ERA-Interim), 2) Common ...

Chaudhuri, Ayan H.

252

Phylogenetic relationships, host affinity, and geographic structure of boreal and arctic endophytes from three major plant lineages  

E-Print Network [OSTI]

Phylogenetic relationships, host affinity, and geographic structure of boreal and arctic endophytes Although associated with all plants, fungal endophytes (microfungi that live within healthy plant tissues, or phylogenetic relationships. We surveyed endophytic Ascomycota from healthy photosyn- thetic tissues of three

Arnold, A. Elizabeth

253

The development of a signal processing network for a real-time Arctic sea ice classification system  

E-Print Network [OSTI]

THE DEVELOPMENT OF A SIGNAL PROCESSING NETWORK FOR A REAL-TIME ARCTIC SEA ICE CLASSIFICATION SYSTEM A Thesis by WILLIAM DOUGLAS NORDHAUS Submitted to the Graduate College of Texas A)M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1973 Major Subject: Electrical Engineering THE DEVELOPMENT OF A SIGNAL PROCESSING NETWORK FOR A REAL-TIME ARCTIC SEA ICE CLASSIFICATION SYSTEM A Thesis by William Douglas Nordhaus Approved as to style...

Nordhaus, William D

1973-01-01T23:59:59.000Z

254

Determination of marine migratory behavior and its relationship to selected physical traits for least cisco (Coregonus sardinella) of the western Arctic coastal plain, Alaska.  

E-Print Network [OSTI]

??With increased resource development on the western Arctic coastal plain of Alaska (especially within the oil extraction industry) it is important to understand the basicÖ (more)

Seigle, John C.

2003-01-01T23:59:59.000Z

255

A Sensitivity Study on Modeling Black Carbon in Snow and its Radiative Forcing over the Arctic and Northern China  

SciTech Connect (OSTI)

Black carbon in snow (BCS) simulated in the Community Atmosphere Model (CAM5) is evaluated against measurements over Northern China and the Arctic, and its sensitivity to atmospheric deposition and two parameters that affect post-depositional enrichment is explored. The BCS concentration is overestimated (underestimated) by a factor of two in Northern China (Arctic) in the default model, but agreement with observations is good over both regions in the simulation with improvements in BC transport and deposition. Sensitivity studies indicate that uncertainty in the melt-water scavenging efficiency (MSE) parameter substantially affects BCS and its radiative forcing (by a factor of 2-7) in the Arctic through post-depositional enrichment. The MSE parameter has a relatively small effect on the magnitude of BCS seasonal cycle but can alter its phase in Northern China. The impact of the snow aging scaling factor (SAF) on BCS, partly through the post-depositional enrichment effect, shows more complex latitudinal and seasonal dependence. Similar to MSE, SAF affects more significantly the magnitude (phase) of BCS season cycle over the Arctic (Northern China). While uncertainty associated with the representation of BC transport and deposition processes in CAM5 is more important than that associated with the two snow model parameters in Northern China, the two uncertainties have comparable effect in the Arctic.

Qian, Yun; Wang, Hailong; Zhang, Rudong; Flanner, M. G.; Rasch, Philip J.

2014-06-02T23:59:59.000Z

256

An Analysis of Past and Future Changes in the Ice Cover of Two High-Arctic Lakes Based on Synthetic Aperture Radar (SAR) and Landsat Imagery  

E-Print Network [OSTI]

and heat energy between a lake and its surroundings (Adams, 1981). In high-arctic lakes, changes in ice climate data are limited, remote sensing of lake-ice conditions can provide valuable insight into climaticAn Analysis of Past and Future Changes in the Ice Cover of Two High-Arctic Lakes Based on Synthetic

Bradley, Raymond S.

257

Sea ice loss and the changing atmospheric CO2 uptake capacity of the Arctic Ocean: Insights1 from the southeastern Canada Basin2  

E-Print Network [OSTI]

Sea ice loss and the changing atmospheric CO2 uptake capacity of the Arctic Ocean: Insights1 from (Arctic Ocean) to act as an atmospheric CO2 sink under the summertime ice-free conditions12 expected in the near future. Beneath a heavily decayed ice cover, we found surprisingly high13 pCO2sw (~290-320 atm

Paris-Sud XI, Universitť de

258

Microphysical Properties of Single and Mixed-Phase Arctic Clouds Derived from AERI Observations  

SciTech Connect (OSTI)

A novel new approach to retrieve cloud microphysical properties from mixed-phase clouds is presented. This algorithm retrieves cloud optical depth, ice fraction, and the effective size of the water and ice particles from ground-based, high-resolution infrared radiance observations. The theoretical basis is that the absorption coefficient of ice is stronger than that of liquid water from 10-13 mm, whereas liquid water is more absorbing than ice from 16-25 um. However, due to strong absorption in the rotational water vapor absorption band, the 16-25 um spectral region becomes opaque for significant water vapor burdens (i.e., for precipitable water vapor amounts over approximately 1 cm). The Arctic is characterized by its dry and cold atmosphere, as well as a preponderance of mixed-phase clouds, and thus this approach is applicable to Arctic clouds. Since this approach uses infrared observations, cloud properties are retrieved at night and during the long polar wintertime period. The analysis of the cloud properties retrieved during a 7 month period during the Surface Heat Budget of the Arctic (SHEBA) experiment demonstrates many interesting features. These results show a dependence of the optical depth on cloud phase, differences in the mode radius of the water droplets in liquid-only and mid-phase clouds, a lack of temperature dependence in the ice fraction for temperatures above 240 K, seasonal trends in the optical depth with the clouds being thinner in winter and becoming more optically thick in the late spring, and a seasonal trend in the effective size of the water droplets in liquid-only and mixed-phase clouds that is most likely related to aerosol concentration.

Turner, David D.

2003-06-01T23:59:59.000Z

259

DOE/SC-ARM-10-034 The Arctic Lower Troposphere Observed  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to UserProduct: CrudeOffice ofINL is a U.S. Department of4 The Arctic

260

Reconstruction of a high-resolution late holocene arctic paleoclimate record from Colville River delta sediments.  

SciTech Connect (OSTI)

This work was partially supported by the Sandia National Laboratories,Laboratory Directed Research and Development' (LDRD) fellowship program in conjunction with Texas A&M University (TAMU). The research described herein is the work of Kathryn M. Schreiner (Katie') and her advisor, Thomas S. Bianchi and represents a concise description of Katie's dissertation that was submitted to the TAMU Office of Graduate Studies in May 2013 in partial fulfillment of her doctorate of philosophy degree. High Arctic permafrost soils contain a massive amount of organic carbon, accounting for twice as much carbon as what is currently stored as carbon dioxide in the atmosphere. However, with current warming trends this sink is in danger of thawing and potentially releasing large amounts of carbon as both carbon dioxide and methane into the atmosphere. It is difficult to make predictions about the future of this sink without knowing how it has reacted to past temperature and climate changes. This project investigated long term, fine scale particulate organic carbon (POC) delivery by the high-Arctic Colville River into Simpson's Lagoon in the near-shore Beaufort Sea. Modern POC was determined to be a mixture of three sources (riverine soils, coastal erosion, and marine). Downcore POC measurements were performed in a core close to the Colville River output and a core close to intense coastal erosion. Inputs of the three major sources were found to vary throughout the last two millennia, and in the Colville River core covary significantly with Alaskan temperature reconstructions.

Schreiner, Kathryn Melissa; Lowry, Thomas Stephen

2013-10-01T23:59:59.000Z

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


261

Remote arctic drilling operations in Russia, case history of Ardalin field operations, Timan Pechora Basin  

SciTech Connect (OSTI)

In developing the Ardalin field, the Polar Lights Company merged Russian and western expertise to conduct drilling operations in a hostile and ecologically sensitive arctic tundra environment. The field is located above the Arctic Circle in northern Russia. The nearest Russian road system is over 60km away and the nearest railhead is 240 km from the field. Three Russian rigs were constructed with selected western upgrades, twelve development wells were drilled, and three existing Russian wells were worked over within a 24 month period. Operations were supported with a snow road in the winter season and Russian helicopter in the summer season. All materials for one year`s worth of drilling had to be transported to the field prior to break-up (end of trucking activities on the snow roads). Services and equipment were sourced from both inside and outside of the Commonwealth of Independent States (CIS). Temperatures in winter reached -45{degrees}C. The field is located in one of the most ecologically sensitive areas in the world, and numerous precautions were taken for the protection of the environment. Russian operating philosophies were successfully merged with western practices. This paper will focus on the operational criteria initiated and infrastructure system that evolved to support this project.

Reyna, E.M.; Nicholson, S.; Brady, S.

1996-12-31T23:59:59.000Z

262

Brown snow: A long-range transport event in the Canadian Arctic  

SciTech Connect (OSTI)

The authors document the occurrence of a long-range transport event that deposited thousands of tons of fine particulates on the District of Keewatin, central Canadian Arctic, {approximately}63 N. Air mass trajectories, clay mineral composition, soot particles, and visible organic remains point to Asian sources for the brown snow material, probably western China. Semivolatile organic pollutants detected in the brown snow included polycyclic aromatic hydrocarbons ({Sigma}PAH), PCB congeners, and DDT-related compounds ({Sigma}DDT), polychlorinated camphenes (PCCs), as well as the herbicide trifuluralin and insecticides methoxychlor, endosulfan, and hexachlorocyclohexane (HCH). {Sigma}PAH, PCB, and PCC concentrations were within the range reported in other studies of Arctic snow but {Sigma}DDT levels were 2-10 times higher than previous reports. High molecular weight PAH may have been associated with soot particles in the brown snow but evidence for Asian sources of the pesticides was not strong because of unknown source signal strengths and possible atmospheric transformations of the compounds. Fluxes of these pollutants were also determined by analyzing sediment cores from two small headwater lakes near the sampling site. The quantities of pollutants deposited in this single event may have comprised a significant fraction (>10%) of total annual input {Sigma}PAH and {Sigma}DDT, as determined from lake sedimentation records.

Welch, H.E.; Muir, D.C.G.; Billeck, B.N.; Lockhart, W.L.; Brunskill, G.J.; Kling, H.J. (Freshwater Inst., Winnipeg (Canada)); Olson, M.P. (Atmospheric Environment Service, Downsview, Ontario (Canada)); Lemoine, R.M. (Hardy BBT Ltd., Winnipeg, Manitoba (Canada))

1991-02-01T23:59:59.000Z

263

Fine-scale Horizontal Structure of Arctic Mixed-Phase Clouds.  

SciTech Connect (OSTI)

Recent in situ observations in stratiform clouds suggest that mixed phase regimes, here defined as limited cloud volumes containing both liquid and solid water, are constrained to narrow layers (order 100 m) separating all-liquid and fully glaciated volumes (Hallett and Viddaurre, 2005). The Department of Energy Atmospheric Radiation Measurement Program's (DOE-ARM, Ackerman and Stokes, 2003) North Slope of Alaska (NSA) ARM Climate Research Facility (ACRF) recently started collecting routine measurement of radar Doppler velocity power spectra from the Millimeter Cloud Radar (MMCR). Shupe et al. (2004) showed that Doppler spectra has potential to separate the contributions to the total reflectivity of the liquid and solid water in the radar volume, and thus to investigate further Hallett and Viddaurre's findings. The Mixed-Phase Arctic Cloud Experiment (MPACE) was conducted along the NSA to investigate the properties of Arctic mixed phase clouds (Verlinde et al., 2006). We present surface based remote sensing data from MPACE to discuss the fine-scale structure of the mixed-phase clouds observed during this experiment.

Rambukkange,M.; Verlinde, J.; Elorante, E.; Luke, E.; Kollias, P.; Shupe, M.

2006-07-10T23:59:59.000Z

264

PERFORMANCE OF A POLYMER SEALANT COATING IN AN ARCTIC MARINE ENVIRONMENT  

SciTech Connect (OSTI)

The feasibility of using a polymer-based coating, Polibrid 705, to seal concrete and steel surfaces from permanent radioactive contamination in an Arctic marine environment has been successfully demonstrated using a combination of field and laboratory testing. A mobile, self-sufficient spraying device was developed to specifications provided by the Russian Northern Navy and deployed at the RTP Atomflot site, Murmansk, Russia. Demonstration coatings were applied to concrete surfaces exposed to conditions ranging from indoor pedestrian usage to heavy vehicle passage and container handling in a loading dock. A large steel container was also coated with the polymer, filled with solid radwaste, sealed, and left out of doors, exposed to the full annual Arctic weather cycle. The 12 months of field testing gave rise to little degradation of the sealant coating, except for a few chips and gouge marks on the loading bay surface that were readily repaired. Contamination resulting from radwaste handling was easily removed and the surface was not degraded by contact with the decontamination agents. The field tests were accompanied by a series of laboratory qualification tests carried out at a research laboratory in St. Petersburg. The laboratory tests examined a variety of properties, including bond strength between the coating and the substrate, thermal cycling resistance, wear resistance, flammability, and ease of decontamination. The Polibrid 705 coating met all the Russian Navy qualification requirements with the exception of flammability. In this last instance, it was decided to restrict application of the coating to land-based facilities.

MOSKOWITZ,P.; COWGILL,M.; GRIFFITH,A.; CHERNAENKO,L.; DIASHEV,A.; NAZARIAN,A.

2001-02-25T23:59:59.000Z

265

PERFORMANCE OF A POLYMER SEALANT COATING IN AN ARCTIC MARINE ENVIRONMENT.  

SciTech Connect (OSTI)

The feasibility of using a polymer-based coating, Polibrid 705, to seal concrete and steel surfaces from permanent radioactive contamination in an Arctic marine environment has been successfully demonstrated using a combination of field and laboratory testing. A mobile, self-sufficient spraying device was developed to specifications provided by the Russian Northern Navy and deployed at the RTP Atomflot site, Murmansk, Russia. Demonstration coatings were applied to concrete surfaces exposed to conditions ranging from indoor pedestrian usage to heavy vehicle passage and container handling in a loading dock. A large steel container was also coated with the polymer, filled with solid radwaste, sealed, and left out of doors, exposed to the full annual Arctic weather cycle. The 12 months of field testing gave rise to little degradation of the sealant coating, except for a few chips and gouge marks on the loading bay surface that were readily repaired. Contamination resulting from radwaste handling was easily removed and the surface was not degraded by contact with the decontamination agents. The field tests were accompanied by a series of laboratory qualification tests carried out at a research laboratory in St. Petersburg. The laboratory tests examined a variety of properties, including bond strength between the coating and the substrate, thermal cycling resistance, wear resistance, flammability, and ease of decontamination. The Polibrid 705 coating met all the Russian Navy qualification requirements with the exception of flammability. In this last instance, it was decided to restrict application of the coating to land-based facilities.

MOSKOWITZ,P.; COWGILL,M.; GRIFFITH,A.; CHERNAENKO,L.; DIASHEV,A.; NAZARIAN,A.

2001-02-25T23:59:59.000Z

266

20th-Century Industrial Black Carbon Emissions Altered Arctic Climate Forcing Joseph R. McConnell,  

E-Print Network [OSTI]

in ice cores indicate that sources and concentrations of BC in Greenland precipitation varied greatly, industrial emissions resulted in a seven-fold increase in ice core BC concentrations with most change to 1910, estimated surface climate forcing in early summer from BC in Arctic snow was about 3 W m­2

Saltzman, Eric

267

The Impact of Global Warming on the Carbon Cycle of Arctic Permafrost: An Experimental and Field Based Study  

SciTech Connect (OSTI)

Our results to date indicate that CO2 and CH4 fluxes from organic poor, Arctic cryosols on Axel Heiberg Island are net CH4 sinks and CO2 emitters in contrast to organic-rich peat deposits at sub-Arctic latitudes. This is based upon field observations and a 1.5 year long thawing experiment performed upon one meter long intact cores. The results of the core thawing experiments are in good agreement with field measurements. Metagenomic, metatranscriptomic and metaproteomic analyses indicate that high affinity aerobic methanotrophs belong to the uncultivated USCalpha are present in <1% abundance in these cryosols are are active in the field during the summer and in the core thawing experiments. The methanotrophs are 100 times more abundant than the methanogens. As a result mineral cryosols, which comprise 87% of Arctic tundra, are net methane sinks. Their presence and activity may account for the discrepancies observed between the atmospheric methane concentrations observed in the Arctic predicted by climate models and the observed seasonal fluctuations and decadal trends. This has not been done yet.

Onstott, Tullis C [Princeton University; Pffifner, Susan M; Chourey, Karuna [Oak Ridge National Laboratory

2014-11-07T23:59:59.000Z

268

A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo and cloud radiative forcing  

E-Print Network [OSTI]

A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo Springer-Verlag 2010 Abstract Snow surface and sea-ice energy budgets were measured near 87.5¬įN during indicated four distinct tempera- ture regimes, characterized by varying cloud, thermody- namic and solar

Shupe, Matthew

269

Analysis of two independent methods for retrieving liquid water profiles in spring and summer Arctic boundary clouds  

E-Print Network [OSTI]

-based remote sensing, optimal estimation, LES model with explicit microphysics, cloud liquid water algorithms Heat Budget of the Arctic Ocean (SHEBA) project. An algorithm developed by Frisch et al. [1995, 1998 matrix of the LWC profile is calculated, an optimal estimation method is applied to the SHEBA data

Shupe, Matthew

270

The area and volume of sea ice in the Arc-tic Ocean is decreasing, with some predict-  

E-Print Network [OSTI]

, while loss of sea ice could cause stress for polar bears. Moreover, global climate may be affected ice forms in winter,which melts and/or gets exported out of the Arctic. The recent decrease in summer of this community is evi- dence that the sea ice cap has not disap- peared during the Quaternary. The remains

Long, Bernard

271

The Arctic Ocean--a Canadian perspective from IPY H. Melling & R. Francois & P. G. Myers & W. Perrie &  

E-Print Network [OSTI]

resulting from ice melt. Careful experiments have revealed that Arctic phytoplankton growth is constrained with the atmosphere is dramatically reduced by its ice cap. Sea ice inhibits transfers of vapour and heat reflectivity and latent heat reduce the ocean's absorption of sunshine, and slow ice melting until insolation

Long, Bernard

272

Temperature and precipitation history of the Arctic G.H. Miller a,*, J. Brigham-Grette b  

E-Print Network [OSTI]

Sciences, Rutgers University, 14 College Farm Road, New Brunswich, NJ 08901, USA q Cooperative Institute. During the penultimate interglaciation, w130 to w120 ka ago, solar energy in summer in the Arctic ice sheets had melted by 6 ka ago. Solar energy reached a summer maximum (9% higher than at present) w

Robock, Alan

273

Modeling the formation and fate of the nearsurface temperature maximum in the Canadian Basin of the Arctic Ocean  

E-Print Network [OSTI]

at the end of summer 2007, using both model output (described in section 2) and observed data. [3] Jackson et of the Arctic Ocean over the years 2000≠2009. The NSTM is formed from local summertime absorption of solar., 2008; Nghiem et al., 2007]. This allowed 500% more solar energy into the surface layers of the Beaufort

Zhang, Jinlun

274

Eos, Vol. 89, No. 9, 26 February 2008 Arctic system model and to develop a suite of  

E-Print Network [OSTI]

for future conditions in the Arctic. 20­22 May 2008N Seventh Annual Environmen- tal Protection Agency (EPA, participants will learn about the role of technology in environmental protection as well as in the United) are located in this area. Preliminary geophysical stud- ies suggest that the mantle transition between

Gao, Stephen Shangxing

275

Radiocarbon in particulate matter from the eastern sub-arctic Pacific Ocean; evidence of a source of terrestrial carbon to the deep sea.  

E-Print Network [OSTI]

THE EASTERN SUB-ARCTIC PACIFIC OCEAN: EVIDENCE OF A SOURCEfrom the deep Northeast Pacific Ocean. Due to the largeMap of the North Pacific Ocean (after Favorite, Dodimead &

Druffel, Ellen R M; Honju, Susumu; Griffin, Sheila; Wong, C S

1986-01-01T23:59:59.000Z

276

Web: http://dust.ess.uci.edu/prp/prp_ans/prp_ans.pdf NSF Arctic Natural Sciences (ANS) Proposal ARC-0714088 Submitted: December 8, 2006  

E-Print Network [OSTI]

Web: http://dust.ess.uci.edu/prp/prp_ans/prp_ans.pdf NSF Arctic Natural Sciences (ANS) Proposal ARC dissemination of LGGE snow measurements as http://dust.ess.uci.edu/snw. Identified IPY sub-disciplines as Snow

Zender, Charles

277

Radionuclides in the Arctic seas from the former Soviet Union: Potential health and ecological risks  

SciTech Connect (OSTI)

The primary goal of the assessment reported here is to evaluate the health and environmental threat to coastal Alaska posed by radioactive-waste dumping in the Arctic and Northwest Pacific Oceans by the FSU. In particular, the FSU discarded 16 nuclear reactors from submarines and an icebreaker in the Kara Sea near the island of Novaya Zemlya, of which 6 contained spent nuclear fuel (SNF); disposed of liquid and solid wastes in the Sea of Japan; lost a {sup 90}Sr-powered radioisotope thermoelectric generator at sea in the Sea of Okhotsk; and disposed of liquid wastes at several sites in the Pacific Ocean, east of the Kamchatka Peninsula. In addition to these known sources in the oceans, the RAIG evaluated FSU waste-disposal practices at inland weapons-development sites that have contaminated major rivers flowing into the Arctic Ocean. The RAIG evaluated these sources for the potential for release to the environment, transport, and impact to Alaskan ecosystems and peoples through a variety of scenarios, including a worst-case total instantaneous and simultaneous release of the sources under investigation. The risk-assessment process described in this report is applicable to and can be used by other circumpolar countries, with the addition of information about specific ecosystems and human life-styles. They can use the ANWAP risk-assessment framework and approach used by ONR to establish potential doses for Alaska, but add their own specific data sets about human and ecological factors. The ANWAP risk assessment addresses the following Russian wastes, media, and receptors: dumped nuclear submarines and icebreaker in Kara Sea--marine pathways; solid reactor parts in Sea of Japan and Pacific Ocean--marine pathways; thermoelectric generator in Sea of Okhotsk--marine pathways; current known aqueous wastes in Mayak reservoirs and Asanov Marshes--riverine to marine pathways; and Alaska as receptor. For these waste and source terms addressed, other pathways, such as atmospheric transport, could be considered under future-funded research efforts for impacts to Alaska. The ANWAP risk assessment does not address the following wastes, media, and receptors: radioactive sources in Alaska (except to add perspective for Russian source term); radioactive wastes associated with Russian naval military operations and decommissioning; Russian production reactor and spent-fuel reprocessing facilities nonaqueous source terms; atmospheric, terrestrial and nonaqueous pathways; and dose calculations for any circumpolar locality other than Alaska. These other, potentially serious sources of radioactivity to the Arctic environment, while outside the scope of the current ANWAP mandate, should be considered for future funding research efforts.

Layton, D W; Edson, R; Varela, M; Napier, B

1999-11-15T23:59:59.000Z

278

Simulating mixed-phase Arctic stratus clouds: sensitivity to ice initiation mechanisms  

SciTech Connect (OSTI)

The importance of Arctic mixed-phase clouds on radiation and the Arctic climate is well known. However, the development of mixed-phase cloud parameterization for use in large scale models is limited by lack of both related observations and numerical studies using multidimensional models with advanced microphysics that provide the basis for understanding the relative importance of different microphysical processes that take place in mixed-phase clouds. To improve the representation of mixed-phase cloud processes in the GISS GCM we use the GISS single-column model coupled to a bin resolved microphysics (BRM) scheme that was specially designed to simulate mixed-phase clouds and aerosol-cloud interactions. Using this model with the microphysical measurements obtained from the DOE ARM Mixed-Phase Arctic Cloud Experiment (MPACE) campaign in October 2004 at the North Slope of Alaska, we investigate the effect of ice initiation processes and Bergeron-Findeisen process (BFP) on glaciation time and longevity of single-layer stratiform mixed-phase clouds. We focus on observations taken during 9th-10th October, which indicated the presence of a single-layer mixed-phase clouds. We performed several sets of 12-h simulations to examine model sensitivity to different ice initiation mechanisms and evaluate model output (hydrometeors concentrations, contents, effective radii, precipitation fluxes, and radar reflectivity) against measurements from the MPACE Intensive Observing Period. Overall, the model qualitatively simulates ice crystal concentration and hydrometeors content, but it fails to predict quantitatively the effective radii of ice particles and their vertical profiles. In particular, the ice effective radii are overestimated by at least 50%. However, using the same definition as used for observations, the effective radii simulated and that observed were more comparable. We find that for the single-layer stratiform mixed-phase clouds simulated, process of ice phase initiation due to freezing of supercooled water in both saturated and undersaturated (w.r.t. water) environments is as important as primary ice crystal origination from water vapor. We also find that the BFP is a process mainly responsible for the rates of glaciation of simulated clouds. These glaciation rates cannot be adequately represented by a water-ice saturation adjustment scheme that only depends on temperature and liquid and solid hydrometeors contents as is widely used in bulk microphysics schemes and are better represented by processes that also account for supersaturation changes as the hydrometeors grow.

Sednev, Igor; Sednev, I.; Menon, S.; McFarquhar, G.

2008-02-18T23:59:59.000Z

279

Simulating mixed-phase Arctic stratus clouds: Sensitivity to ice initiationmechanisms  

SciTech Connect (OSTI)

The importance of Arctic mixed-phase clouds on radiation and the Arctic climate is well known. However, the development of mixed-phase cloud parameterization for use in large scale models is limited by lack of both related observations and numerical studies using multidimensional models with advanced microphysics that provide the basis for understanding the relative importance of different microphysical processes that take place in mixed-phase clouds. To improve the representation of mixed-phase cloud processes in the GISS GCM we use the GISS single-column model coupled to a bin resolved microphysics (BRM) scheme that was specially designed to simulate mixed-phase clouds and aerosol-cloud interactions. Using this model with the microphysical measurements obtained from the DOE ARM Mixed-Phase Arctic Cloud Experiment (MPACE) campaign in October 2004 at the North Slope of Alaska, we investigate the effect of ice initiation processes and Bergeron-Findeisen process (BFP) on glaciation time and longevity of single-layer stratiform mixed-phase clouds. We focus on observations taken during October 9th-10th, which indicated the presence of a single-layer mixed-phase clouds. We performed several sets of 12-hour simulations to examine model sensitivity to different ice initiation mechanisms and evaluate model output (hydrometeors concentrations, contents, effective radii, precipitation fluxes, and radar reflectivity) against measurements from the MPACE Intensive Observing Period. Overall, the model qualitatively simulates ice crystal concentration and hydrometeors content, but it fails to predict quantitatively the effective radii of ice particles and their vertical profiles. In particular, the ice effective radii are overestimated by at least 50%. However, using the same definition as used for observations, the effective radii simulated and that observed were more comparable. We find that for the single-layer stratiform mixed-phase clouds simulated, process of ice phase initiation due to freezing of supercooled water in both saturated and subsaturated (w.r.t. water) environments is as important as primary ice crystal origination from water vapor. We also find that the BFP is a process mainly responsible for the rates of glaciation of simulated clouds. These glaciation rates cannot be adequately represented by a water-ice saturation adjustment scheme that only depends on temperature and liquid and solid hydrometeors contents as is widely used in bulk microphysics schemes and are better represented by processes that also account for supersaturation changes as the hydrometeors grow.

Sednev, I.; Menon, S.; McFarquhar, G.

2009-04-10T23:59:59.000Z

280

Decline in ice thickness from sub data 1 10/16/07 The decline in arctic sea-ice thickness: separating the spatial, annual, and1  

E-Print Network [OSTI]

Decline in ice thickness from sub data 1 10/16/07 The decline in arctic sea-ice thickness/14/07 & 10/16/079 10 11 #12;Decline in ice thickness from sub data 2 10/16/07 Abstract11 Naval submarines have collected operational data of sea-ice draft (90% of thickness) in the12 Arctic Ocean since 1958

Percival, Don

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


281

arXiv:1408.2487v2[physics.ao-ph]22Aug2014 Ising model for melt ponds on Arctic sea ice  

E-Print Network [OSTI]

arXiv:1408.2487v2[physics.ao-ph]22Aug2014 Ising model for melt ponds on Arctic sea ice Yi-Ping Ma,1, USA The albedo of melting Arctic sea ice, a key parameter in climate modeling, is determined by pools of water on the ice surface. Recent observations show an onset of pond complexity at a critical area

Golden, Kenneth M.

282

Variations in the age of Arctic sea-ice and summer sea-ice extent Ignatius G. Rigor1,2  

E-Print Network [OSTI]

. On time scales of days to weeks, wind stresses from storms produce ridges of sea-ice and areas of openVariations in the age of Arctic sea-ice and summer sea-ice extent Ignatius G. Rigor1,2 and John M] Three of the past six summers have exhibited record low sea-ice extent on the Arctic Ocean. These minima

Rigor, Ignatius G.

283

Remote Sensing and In-Situ Observations of Arctic Mixed-Phase and Cirrus Clouds Acquired During Mixed-Phase Arctic Cloud Experiment: Atmospheric Radiation Measurement Uninhabited Aerospace Vehicle Participation  

SciTech Connect (OSTI)

The Atmospheric Radiation Monitor (ARM) uninhabited aerospace vehicle (UAV) program aims to develop measurement techniques and instruments suitable for a new class of high altitude, long endurance UAVs while supporting the climate community with valuable data sets. Using the Scaled Composites Proteus aircraft, ARM UAV participated in Mixed-Phase Arctic Cloud Experiment (M-PACE), obtaining unique data to help understand the interaction of clouds with solar and infrared radiation. Many measurements obtained using the Proteus were coincident with in-situ observations made by the UND Citation. Data from M-PACE are needed to understand interactions between clouds, the atmosphere and ocean in the Arctic, critical interactions given large-scale models suggest enhanced warming compared to lower latitudes is occurring.

McFarquhar, G.M.; Freer, M.; Um, J.; McCoy, R.; Bolton, W.

2005-03-18T23:59:59.000Z

284

PCBs have declined more than DDT-group residues in Arctic ringed seals (Phoca hispida) between 1972 and 1981  

SciTech Connect (OSTI)

Mean DDT-group concentrations in the blubber of western Arctic ringed seals (Phoca hispida) sampled in 1981 were less than 1..mu..g.g/sup -1/ wet weight. Male seals had higher concentrations than did females. PCB concentrations were about half of those in a sample of the same population taken in 1972, when allowance was made for the variation of residue concentrations with age, sex, and condition. This decline probably results from the ban on PCB manufacture and use imposed in the early 1970s. Concentrations of DDT-group residues did not show any clear decline over the same interval, and the relative proportions of p,p'-DDT and p,p'-DDE suggested that there is a continuing supply of DDT to the western Arctic. The most probable source of this is by atmospheric or water transport from the Far East, where DDT was used until at least the late 1970s.

Addison, R.F.; Zinck, M.E.; Smith, T.G.

1986-03-01T23:59:59.000Z

285

Radioactive contamination of the Arctic Region, Baltic Sea, and the Sea of Japan from activities in the former Soviet Union  

SciTech Connect (OSTI)

Contamination of the Arctic regions of northern Europe and Russia, as well as the Sea of Japan, may become a potential major hazard to the ecosystem of these large areas. Widespread poor radioactive waste management practices from nuclear fuel cycle activities in the former Soviet Union have resulted in direct discharges to this area as well as multiple sources that may continue to release additional radioactivity. Information on the discharges of radioactive materials has become more commonplace in the last year, and a clearer picture is emerging of the scale of the contamination. Radioactivity in the Arctic oceans is now reported to be four times higher than would be derived from fallout from weapons tests. Although the characteristics and extent of the contamination are not well known, it has been stated that the contamination in the Arctic may range from 1 to 3.5 billion curies. As yet, no scientific sampling or measurement program has occurred that can verify the amount or extent of the contamination, or its potential impact on the ecosystem.

Bradley, D.J.

1992-09-01T23:59:59.000Z

286

4/25/11 12:25 PMRedOrbit NEWS | Scientists Tracking Black Carbon In The Arctic Page 1 of 3http://www.redorbit.com/modules/news/tools.php?tool=print&id=2033713  

E-Print Network [OSTI]

carbon, has on the rapidly changing Arctic climate. Although the Arctic is typically viewed as a vast an impact on the world's climate for years to come. Black carbon is produced by vehicle engines, aircraft back into the atmosphere," explained Bates. Scientists from The United States, Norway, Russia, Germany

Rigor, Ignatius G.

287

Multiangle Observations of Arctic Clouds from FIRE ACE: June 3, 1998 Case Study  

SciTech Connect (OSTI)

In May and June 1998 the Airborne Multiangle Imaging Spectroradiometer (AirMISR) participated in the FIRE Arctic Cloud Experiment (ACE). AirMISR is an airborne instrument for obtaining multiangle imagery similar to that of the satellite-borne MISR instrument. This paper presents a detailed analysis of the data collected on June 3, 1998. In particular, AirMISR radiance measurements are compared with measurements made by two other instruments, the Cloud Absorption Radiometer (CAR) and the MODIS airborne simulator (MAS), as well as to plane-parallel radiative transfer simulations. It is found that the AirMISR radiance measurements and albedo estimates compare favorably both with the other instruments and with the radiative transfer simulations. In addition to radiance and albedo, the multiangle AirMISR data can be used to obtain estimates of cloud top height using stereoimaging techniques. Comparison of AirMISR retrieved cloud top height (using the complete MISR-based stereoimaging approach) shows excellent agreement with the measurements from the airborne Cloud Lidar System (CLS) and ground-based millimeter-wave cloud radar.

Marchand, Roger T.; Ackerman, Thomas P.; King, M. D.; Moroney, C.; Davies, R.; Muller, J.-P. A. L.; Gerber, H.

2001-07-27T23:59:59.000Z

288

Geohydrology and groundwater geochemistry at a sub-arctic landfill, Fairbanks, Alaska  

SciTech Connect (OSTI)

The Fairbanks-North Star Borough, Alaska, landfill is located on silt, sand, and gravel deposits of the Tanana River flood plain, about 3 miles south of the city of Fairbanks water supply wells. The landfill has been in operation for about 25 years in this sub-arctic region of discontinuous permafrost. The cold climate limits biological activity within the landfill with corresponding low gas and leachate production. Chloride concentrations, specific conductance, water temperature, and earth conductivity measurements indicate a small plume of leachate flowing to the northwest from the landfill. The leachate remains near the water table as it flows northwestward toward a drainage ditch. Results of computer modeling of this local hydrologic system indicate that some of the leachate may be discharging to the ditch. Chemical data show that higher-than-background concentrations of several ions are present in the plume. However, the concentrations appear to be reduced to background levels within a short distance along the path of groundwater flow from the landfill, and thus the leachate is not expected to affect the water supply wells. 11 refs., 21 figs., 2 tabs.

Downey, J.S.; Sinton, P.O.

1990-01-01T23:59:59.000Z

289

Process-model Simulations of Cloud Albedo Enhancement by Aerosols in the Arctic  

SciTech Connect (OSTI)

A cloud-resolving model is used to simulate the effectiveness of Arctic marine cloud brightening via injection of cloud condensation nuclei (CCN). An updated cloud microphysical scheme is employed, with prognostic CCN and cloud particle numbers in both liquid and mixed-phase marine low clouds. Injection of CCN into the marine boundary layer can delay the collapse of the boundary layer and increase low-cloud albedo. Because nearly all of the albedo effects are in the liquid phase due to the removal of ice water by snowfall when ice processes are involved, albedo increases are stronger for pure liquid clouds than mixed-phase clouds. Liquid precipitation can be suppressed by CCN injection, whereas ice precipitation (snow) is affected less; thus the effectiveness of brightening mixed-phase clouds is lower than for liquid-only clouds. CCN injection into a clean regime results in a greater albedo increase than injection into a polluted regime, consistent with current knowledge about aerosol-cloud interactions. Unlike previous studies investigating warm clouds, dynamical changes in circulation due to precipitation changes are small.

Kravitz, Benjamin S.; Wang, Hailong; Rasch, Philip J.; Morrison, H.; Solomon, Amy

2014-11-17T23:59:59.000Z

290

Contribution of oceanic gas hydrate dissociation to the formation of Arctic Ocean methane plumes  

SciTech Connect (OSTI)

Vast quantities of methane are trapped in oceanic hydrate deposits, and there is concern that a rise in the ocean temperature will induce dissociation of these hydrate accumulations, potentially releasing large amounts of carbon into the atmosphere. Because methane is a powerful greenhouse gas, such a release could have dramatic climatic consequences. The recent discovery of active methane gas venting along the landward limit of the gas hydrate stability zone (GHSZ) on the shallow continental slope (150 m - 400 m) west of Svalbard suggests that this process may already have begun, but the source of the methane has not yet been determined. This study performs 2-D simulations of hydrate dissociation in conditions representative of the Arctic Ocean margin to assess whether such hydrates could contribute to the observed gas release. The results show that shallow, low-saturation hydrate deposits, if subjected to recently observed or future predicted temperature changes at the seafloor, can release quantities of methane at the magnitudes similar to what has been observed, and that the releases will be localized near the landward limit of the GHSZ. Both gradual and rapid warming is simulated, along with a parametric sensitivity analysis, and localized gas release is observed for most of the cases. These results resemble the recently published observations and strongly suggest that hydrate dissociation and methane release as a result of climate change may be a real phenomenon, that it could occur on decadal timescales, and that it already may be occurring.

Reagan, M.; Moridis, G.; Elliott, S.; Maltrud, M.

2011-06-01T23:59:59.000Z

291

Uranium hydrogeochemical and stream sediment reconnaissance of the Arctic NTMS quadrangle, Alaska  

SciTech Connect (OSTI)

This report presents results of a Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Arctic NTMS quadrangle, Alaska. In addition to this abbreviated data release, more complete data are available to the public in machine-readable form through the Grand Junction Office Information System at Oak Ridge National Laboratory. Presented in this data release are location data, field analyses, and laboratory analyses of several different sample media. For the sake of brevity, many field site observations have not been included in this volume. These data are, however, available on the magnetic tape. Appendix A describes the sample media and summarizes the analytical results for each medium. The data were subdivided by one of the Los Alamos National Laboratory (LANL) sorting programs of Zinkl and others into stream sediment samples. For the group which contains a sufficient number of observations, statistical tables, tables of raw data, and 1:1000000 scale maps of pertinent elements have been included in this report. In addition, maps showing results of multivariate statistical analyses have been included. Further information about the HSSR program in general, or about the LANL portion of the program in particular, can be obtained in quarterly or semiannual program progress reports on open-file at DOE's Technical Library in Grand Junction. Information about the field and analytical procedures used by LANL during sample collection and analysis may be found in any HSSR data release prepared by the LANL and will not be included in this report.

Shettel, D.L. Jr.; Langfeldt, S.L.; Youngquist, C.A.; D'Andrea, R.F. Jr.; Zinkl, R.J. (comps.) [comps.

1981-09-01T23:59:59.000Z

292

Retrieval of Cloud Phase Using the Moderate Resolution Imaging Spectroradiometer Data during the Mixed-Phase Arctic Cloud Experiment  

SciTech Connect (OSTI)

Improving climate model predictions over Earth's polar regions requires a comprehensive knowledge of polar cloud microphysics. Over the Arctic, there is minimal contrast between the clouds and background snow surface, making it difficult to detect clouds and retrieve their phase from space. Snow and ice cover, temperature inversions, and the predominance of mixed-phase clouds make it even more difficult to determine cloud phase. Also, since determining cloud phase is the first step toward analyzing cloud optical depth, particle size, and water content, it is vital that the phase be correct in order to obtain accurate microphysical and bulk properties. Changes in these cloud properties will, in turn, affect the Arctic climate since clouds are expected to play a critical role in the sea ice albedo feedback. In this paper, the IR trispectral technique (IRTST) is used as a starting point for a WV and 11-{micro}m brightness temperature (T11) parameterization (WVT11P) of cloud phase using MODIS data. In addition to its ability to detect mixed-phase clouds, the WVT11P also has the capability to identify thin cirrus clouds overlying mixed or liquid phase clouds (multiphase ice). Results from the Atmospheric Radiation Measurement (ARM) MODIS phase model (AMPHM) are compared to the surface-based cloud phase retrievals over the ARM North Slope of Alaska (NSA) Barrow site and to in-situ data taken from University of North Dakota Citation (CIT) aircraft which flew during the Mixed-Phase Arctic Cloud Experiment (MPACE). It will be shown that the IRTST and WVT11P combined to form the AMPHM can achieve a relative high accuracy of phase discrimination compared to the surface-based retrievals. Since it only uses MODIS WV and IR channels, the AMPHM is robust in the sense that it can be applied to daytime, twilight, and nighttime scenes with no discontinuities in the output phase.

Spangenberg, D.; Minnis, P.; Shupe, M.; Uttal, T.; Poellot, M.

2005-03-18T23:59:59.000Z

293

LES Simulations of Roll Clouds Observed During Mixed- Phase Arctic Cloud Experiment  

SciTech Connect (OSTI)

Roll clouds, and associated roll convection, are fairly common features of the atmospheric boundary layer. While these organized cumuliform clouds are found over many regions of the planet, they are quite ubiquitous near the edge of the polar ice sheets. In particular, during periods of off-ice flow, when cold polar air flows from the ice pack over the relatively warm ocean water, strong boundary layer convection develops along with frequent rolls. According to Bruemmer and Pohlman (2000), most of the total cloud cover in the Arctic is due to roll clouds. In an effort to examine the influences of mixed-phase microphysics on the boundary layer evolution of roll clouds during off-ice flow, Olsson and Harrington (2000) used a 2D mesoscale model coupled to a bulk microphysical scheme (see Section 2). Their results showed that mixed-phase clouds produced more shallow boundary layers with weaker turbulence than liquid-phase cases. Furthermore, their results showed that because of th e reduced turbulent drag on the atmosphere in the mixed-phase case, regions of mesoscale divergence in the marginal ice-zone were significantly affected. A follow-up 2D study (Harrington and Olsson 2001) showed that the reduced turbulent intensity in mixed-phase cases was due to precipitation. Ice precipitation caused downdraft stabilization which fed back and caused a reduction in the surface heat fluxes. In this work, we extend the work of Olsson and Harrington (2000) and Harrington and Olsson (2001) by examining the impacts of ice microphysics on roll convection. We will present results that illustrate how microphysics alters roll cloud structure and dynamics.

Greenberg, S.D.; Harrington, J.Y.; Prenni, A.; DeMott, P.

2005-03-18T23:59:59.000Z

294

Using Snow Fences to Augument Fresh Water Supplies in Shallow Arctic Lakes  

SciTech Connect (OSTI)

This project was funded by the U.S. Department of Energy, National Energy Technology Laboratory (NETL) to address environmental research questions specifically related to Alaska?s oil and gas natural resources development. The focus of this project was on the environmental issues associated with allocation of water resources for construction of ice roads and ice pads. Earlier NETL projects showed that oil and gas exploration activities in the U.S. Arctic require large amounts of water for ice road and ice pad construction. Traditionally, lakes have been the source of freshwater for this purpose. The distinctive hydrological regime of northern lakes, caused by the presence of ice cover and permafrost, exerts influence on lake water availability in winter. Lakes are covered with ice from October to June, and there is often no water recharge of lakes until snowmelt in early June. After snowmelt, water volumes in the lakes decrease throughout the summer, when water loss due to evaporation is considerably greater than water gained from rainfall. This balance switches in August, when air temperature drops, evaporation decreases, and rain (or snow) is more likely to occur. Some of the summer surface storage deficit in the active layer and surface water bodies (lakes, ponds, wetlands) is recharged during this time. However, if the surface storage deficit is not replenished (for example, precipitation in the fall is low and near?surface soils are dry), lake recharge is directly affected, and water availability for the following winter is reduced. In this study, we used snow fences to augment fresh water supplies in shallow arctic lakes despite unfavorable natural conditions. We implemented snow?control practices to enhance snowdrift accumulation (greater snow water equivalent), which led to increased meltwater production and an extended melting season that resulted in lake recharge despite low precipitation during the years of the experiment. For three years (2009, 2010, and 2011), we selected and monitored two lakes with similar hydrological regimes. Both lakes are located 30 miles south of Prudhoe Bay, Alaska, near Franklin Bluffs. One is an experimental lake, where we installed a snow fence; the other is a control lake, where the natural regime was preserved. The general approach was to compare the hydrologic response of the lake to the snowdrift during the summers of 2010 and 2011 against the ?baseline? conditions in 2009. Highlights of the project included new data on snow transport rates on the Alaska North Slope, an evaluation of the experimental lake?s hydrological response to snowdrift melt, and cost assessment of snowdrift?generated water. High snow transport rates (0.49 kg/s/m) ensured that the snowdrift reached its equilibrium profile by winter's end. Generally, natural snowpack disappeared by the beginning of June in this area. In contrast, snow in the drift lasted through early July, supplying the experimental lake with snowmelt when water in other tundra lakes was decreasing. The experimental lake retained elevated water levels during the entire open?water season. Comparison of lake water volumes during the experiment against the baseline year showed that, by the end of summer, the drift generated by the snow fence had increased lake water volume by at least 21?29%. We estimated water cost at 1.9 cents per gallon during the first year and 0.8 cents per gallon during the second year. This estimate depends on the cost of snow fence construction in remote arctic locations, which we assumed to be at $7.66 per square foot of snow fence frontal area. The snow fence technique was effective in augmenting the supply of lake water during summers 2010 and 2011 despite low rainfall during both summers. Snow fences are a simple, yet an effective, way to replenish tundra lakes with freshwater and increase water availability in winter. This research project was synergetic with the NETL project, "North Slope Decision Support System (NSDSS) for Water Resources Planning and Management." The results

Stuefer, Svetlana

2013-03-31T23:59:59.000Z

295

Radioactive and other environmental threats to the United States and the Arctic resulting from past Soviet activities  

SciTech Connect (OSTI)

Earlier this year the Senate Intelligence Committee began to receive reports from environmental and nuclear scientists in Russia detailing the reckless nuclear waste disposal practices, nuclear accidents and the use of nuclear detonations. We found that information disturbing to say the least. Also troubling is the fact that 15 Chernobyl style RBMK nuclear power reactors continue to operate in the former Soviet Union today. These reactors lack a containment structure and they`re designed in such a way that nuclear reaction can actually increase when the reactor overheats. As scientists here at the University of Alaska have documented, polar air masses and prevailing weather patterns provide a pathway for radioactive contaminants from Eastern Europe and Western Russia, where many of these reactors are located. The threats presented by those potential radioactive risks are just a part of a larger Arctic pollution problem. Every day, industrial activities of the former Soviet Union continue to create pollutants. I think we should face up to the reality that in a country struggling for economic survival, environment protection isn`t necessarily the high priority. And that could be very troubling news for the Arctic in the future.

NONE

1993-12-31T23:59:59.000Z

296

ShoreZone in the Arctic 8,000 km of Coastal Habitat Mapping Cathy Coon, Bureau of Ocean Energy Management, catherine.coon@boem.gov  

E-Print Network [OSTI]

Deadhorse Kotzebue Sound BOEM North Slope Imagery - 1,900 km BOEM North Slope Shore Stations National Park a continental-scale characterization of the arctic shoreline and support planning efforts related to oils spills Krusenstern, north of Kotzebue #12;Point Lay Wales Kotzebue Wainwright Cape Lisburne Kaktovik BARROW Point

297

Omics in the Arctic: Genome-enabled Contributions to Carbon Cycle Research in High-Latitude Ecosystems (JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)  

SciTech Connect (OSTI)

Stan Wullschleger of Oak Ridge National Laboratory on "Omics in the Arctic: Genome-enabled Contributions to Carbon Cycle Research in High-Latitude Ecosystems" on March 22, 2012 at the 7th Annual Genomics of Energy & Environment Meeting in Walnut Creek, California.

Wullschleger, Stan [ORNL] [ORNL

2012-03-22T23:59:59.000Z

298

Arctic Sea Ice Retreat in 2007 Follows Thinning Trend R. W. LINDSAY, J. ZHANG, A. SCHWEIGER, M. STEELE, AND H. STERN  

E-Print Network [OSTI]

Arctic Sea Ice Retreat in 2007 Follows Thinning Trend R. W. LINDSAY, J. ZHANG, A. SCHWEIGER, M ice extent in the summer of 2007 was unprecedented in the historical record. A coupled ice≠ocean model is used to determine the state of the ice and ocean over the past 29 yr to investigate the causes

Zhang, Jinlun

299

Omics in the Arctic: Genome-enabled Contributions to Carbon Cycle Research in High-Latitude Ecosystems (JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)  

ScienceCinema (OSTI)

Stan Wullschleger of Oak Ridge National Laboratory on "Omics in the Arctic: Genome-enabled Contributions to Carbon Cycle Research in High-Latitude Ecosystems" on March 22, 2012 at the 7th Annual Genomics of Energy & Environment Meeting in Walnut Creek, California.

Wullschleger, Stan [ORNL

2013-01-22T23:59:59.000Z

300

A New Double-Moment Microphysics Parameterization for Application in Cloud and Climate Models. Part II: Single-Column Modeling of Arctic Clouds  

E-Print Network [OSTI]

of the arctic bound- ary layer, the presence of leads (cracks) in the sea ice surface, the persistence of mixed-phaseA New Double-Moment Microphysics Parameterization for Application in Cloud and Climate Models. Part- dicted cloud boundaries and total cloud fraction compare reasonably well with observations. Cloud phase

Shupe, Matthew

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


301

115 year ice-core data from Akademii Nauk ice cap, Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change  

E-Print Network [OSTI]

115 year ice-core data from Akademii Nauk ice cap, Severnaya Zemlya: high-resolution record ABSTRACT. From 1999 to 2001 a 724 m deep ice core was drilled on Akademii Nauk ice cap, Severnaya Zemlya Greenland are needed. Therefore, in the Eurasian Arctic several ice cores from ice caps on Svalbard

Fischer, Hubertus

302

Model-data Fusion Approaches for Retrospective and Predictive Assessment of the Pan-Arctic Scale Permafrost Carbon Feedback to Global Climate  

E-Print Network [OSTI]

representation of the Arctic system carbon cycle in Earth System Modeling frameworks. This proposed study of permafrost carbon processes in terrestrial biogeochemistry models, to operate within coupled Earth system modeling frameworks. PROJECT SIGNIFICANCE This work will provide a critical bridge between the abundant

303

20 InsideGNSS SEP T EMBER /OC T OBER 2011 www.insidegnss.com he Arctic houses an estimated 90 billion barrels of  

E-Print Network [OSTI]

of global climate change. New summer sea lanes have already opened up, and projections of sea ice loss. The combination of undiscovered oil and climate change are driving a dramatic increase in the demand of the untapped oil in the world. Russia, Canada, and the United States plan to explore the Arctic for extensive

Stanford University

304

Simulations of Arctic Mixed-Phase Clouds in Forecasts with CAM3 and AM2 for M-PACE  

SciTech Connect (OSTI)

Simulations of mixed-phase clouds in short-range forecasts with the National Center for Atmospheric Research Community Atmosphere Model version 3 (CAM3) and the Geophysical Fluid Dynamics Laboratory (GFDL) climate model (AM2) for the Mixed-Phase Arctic Cloud Experiment (M-PACE) are performed under the DOE CCPP-ARM Parameterization Testbed (CAPT), which initializes the climate models with analysis data produced from numerical weather prediction (NWP) centers. It is shown that CAM3 significantly underestimates the observed boundary layer mixed-phase clouds and cannot realistically simulate the variations with temperature and cloud height of liquid water fraction in the total cloud condensate based an oversimplified cloud microphysical scheme. In contrast, AM2 reasonably reproduces the observed boundary layer clouds while its clouds contain much less cloud condensate than CAM3 and the observations. Both models underestimate the observed cloud top and base for the boundary layer clouds. The simulation of the boundary layer mixed-phase clouds and their microphysical properties is considerably improved in CAM3 when a new physically based cloud microphysical scheme is used. The new scheme also leads to an improved simulation of the surface and top of the atmosphere longwave radiative fluxes in CAM3. It is shown that the Bergeron-Findeisen process, i.e., the ice crystal growth by vapor deposition at the expense of coexisting liquid water, is important for the models to correctly simulate the characteristics of the observed microphysical properties in mixed-phase clouds. Sensitivity tests show that these results are not sensitive to the analysis data used for model initializations. Increasing model horizontal resolution helps capture the subgrid-scale features in Arctic frontal clouds but does not help improve the simulation of the single-layer boundary layer clouds. Ice crystal number density has large impact on the model simulated mixed-phase clouds and their microphysical properties and needs to be accurately represented in climate models.

Xie, Shaocheng; Boyle, James; Klein, Stephen A.; Liu, Xiaohong; Ghan, Steven J.

2008-02-29T23:59:59.000Z

305

Using Radar, Lidar and Radiometer Data from NSA and SHEBA to Quantify Cloud Property Effects on the Surface Heat Budget in the Arctic  

SciTech Connect (OSTI)

Cloud and radiation data from two distinctly different Arctic areas are analyzed to study the differences between coastal Alaskan and open Arctic Ocean region clouds and their respective influence on the surface radiation budget. The cloud and radiation datasets were obtained from (1) the DOE North Slope of Alaska (NSA) facility in the coastal town of Barrow, Alaska, and (2) the SHEBA field program, which was conducted from an icebreaker frozen in, and drifting with, the sea-ice for one year in the Western Arctic Ocean. Radar, lidar, radiometer, and sounding measurements from both locations were used to produce annual cycles of cloud occurrence and height, atmospheric temperature and humidity, surface longwave and shortwave broadband fluxes, surface albedo, and cloud radiative forcing. In general, both regions revealed a similar annual trend of cloud occurrence fraction with minimum values in winter (60-75%) and maximum values during spring, summer and fall (80-90%). However, the annual average cloud occurrence fraction for SHEBA (76%) was lower than the 6-year average cloud occurrence at NSA (92%). Both Arctic areas also showed similar annual cycle trends of cloud forcing with clouds warming the surface through most of the year and a period of surface cooling during the summer, when cloud shading effects overwhelm cloud greenhouse effects. The greatest difference between the two regions was observed in the magnitude of the cloud cooling effect (i.e., shortwave cloud forcing), which was significantly stronger at NSA and lasted for a longer period of time than at SHEBA. This is predominantly due to the longer and stronger melt season at NSA (i.e., albedo values that are much lower coupled with Sun angles that are somewhat higher) than the melt season observed over the ice pack at SHEBA. Longwave cloud forcing values were comparable between the two sites indicating a general similarity in cloudiness and atmospheric temperature and humidity structure between the two regions.

Janet Intrieri; Mathhew Shupe

2005-01-01T23:59:59.000Z

306

Intercomparison of model simulations of mixed-phase clouds observed during the ARM Mixed-Phase Arctic Cloud Experiment. Part II: Multi-layered cloud  

SciTech Connect (OSTI)

Results are presented from an intercomparison of single-column and cloud-resolving model simulations of a deep, multi-layered, mixed-phase cloud system observed during the ARM Mixed-Phase Arctic Cloud Experiment. This cloud system was associated with strong surface turbulent sensible and latent heat fluxes as cold air flowed over the open Arctic Ocean, combined with a low pressure system that supplied moisture at mid-level. The simulations, performed by 13 single-column and 4 cloud-resolving models, generally overestimate the liquid water path and strongly underestimate the ice water path, although there is a large spread among the models. This finding is in contrast with results for the single-layer, low-level mixed-phase stratocumulus case in Part I of this study, as well as previous studies of shallow mixed-phase Arctic clouds, that showed an underprediction of liquid water path. The overestimate of liquid water path and underestimate of ice water path occur primarily when deeper mixed-phase clouds extending into the mid-troposphere were observed. These results suggest important differences in the ability of models to simulate Arctic mixed-phase clouds that are deep and multi-layered versus shallow and single-layered. In general, models with a more sophisticated, two-moment treatment of the cloud microphysics produce a somewhat smaller liquid water path that is closer to observations. The cloud-resolving models tend to produce a larger cloud fraction than the single-column models. The liquid water path and especially the cloud fraction have a large impact on the cloud radiative forcing at the surface, which is dominated by the longwave flux for this case.

Morrison, H; McCoy, R B; Klein, S A; Xie, S; Luo, Y; Avramov, A; Chen, M; Cole, J; Falk, M; Foster, M; Genio, A D; Harrington, J; Hoose, C; Khairoutdinov, M; Larson, V; Liu, X; McFarquhar, G; Poellot, M; Shipway, B; Shupe, M; Sud, Y; Turner, D; Veron, D; Walker, G; Wang, Z; Wolf, A; Xu, K; Yang, F; Zhang, G

2008-02-27T23:59:59.000Z

307

The Next-Generation Ecosystem Experiments (NGEE Arctic) project is supported by the Office of Biological and Environmental Research in the DOE Office of Science.  

E-Print Network [OSTI]

The Next-Generation Ecosystem Experiments (NGEE Arctic) project is supported by the Office 600 800 1000 1200 1400 m/z 0.0 0.5 1.0 1.5 2.0 2.5 8x10 Intensity Degradation products/Organic acids ­ Chemical Characteristics Summary and Implications In order to predict rates of carbon release from tundra

308

Advanced Refrigerant-Based Cooling Technologies for Information and Communication Infrastructure (ARCTIC)  

SciTech Connect (OSTI)

Faster, more powerful and dense computing hardware generates significant heat and imposes considerable data center cooling requirements. Traditional computer room air conditioning (CRAC) cooling methods are proving increasingly cost-ineffective and inefficient. Studies show that using the volume of room air as a heat exchange medium is wasteful and allows for substantial mixing of hot and cold air. Further, it limits cabinet/frame/rack density because it cannot effectively cool high heat density equipment that is spaced closely together. A more cost-effective, efficient solution for maximizing heat transfer and enabling higher heat density equipment frames can be accomplished by utilizing properly positioned √?¬Ę√?¬?√?¬?phase change√?¬Ę√?¬?√?¬Ě or √?¬Ę√?¬?√?¬?two-phase√?¬Ę√?¬?√?¬Ě pumped refrigerant cooling methods. Pumping low pressure, oil-free phase changing refrigerant through microchannel heat exchangers can provide up to 90% less energy consumption for the primary cooling loop within the room. The primary benefits of such a solution include reduced energy requirements, optimized utilization of data center space, and lower OPEX and CAPEX. Alcatel-Lucent recently developed a modular cooling technology based on a pumped two-phase refrigerant that removes heat directly at the shelf level of equipment racks. The key elements that comprise the modular cooling technology consist of the following. A pump delivers liquid refrigerant to finned microchannel heat exchangers mounted on the back of equipment racks. Fans drive air through the equipment shelf, where the air gains heat dissipated by the electronic components therein. Prior to exiting the rack, the heated air passes through the heat exchangers, where it is cooled back down to the temperature level of the air entering the frame by vaporization of the refrigerant, which is subsequently returned to a condenser where it is liquefied and recirculated by the pump. All the cooling air enters and leaves the shelves/racks at nominally the same temperature. Results of a 100 kW prototype data center installation of the refrigerant-based modular cooling technology were dramatic in terms of energy efficiency and the ability to cool high-heat-density equipment. The prototype data center installation consisted of 10 racks each loaded with 10 kW of high-heat-density IT equipment with the racks arranged in a standard hot-aisle/cold-aisle configuration with standard cabinet spacing. A typical chilled-water CRAC unit would require approximately 16 kW to cool such a heat load. In contrast, the refrigerant-based modular cooling technology required only 2.3 kW of power for the refrigerant pump and shelf-level fans, a reduction of 85 percent. Differences in hot-aisle and cold-aisle temperature were also substantially reduced, mitigating many issues that arise in purely air-based cooling systems, such as mixing of hot and cold air streams, or from placing high-heat-density equipment in close proximity. The technology is also such that it is able to retro-fit live equipment without service interruption, which is particularly important to the large installed ICT customer base, thereby providing a means of mitigating reliability and performance concerns during the installation, training and validation phases of product integration. Moreover, the refrigerant used in our approach, R134a, is a widely-used, non-toxic dielectric liquid which, unlike water, is non-conducting and non-corrosive and will not damage electronics in the case of a leak√?¬Ę√?¬?√?¬?a triple-play win over alternative water-based liquid coolant technologies. Finally, through use of a pumped refrigerant, pressures are modest (~60 psi), and toxic lubricants and oils are not required, in contrast to compressorized refrigerant systems√?¬Ę√?¬?√?¬?another environmental win. Project Activities - The ARCTIC project goal was to further develop an

Todd Salamon

2012-12-13T23:59:59.000Z

309

Critical Mechanisms for the Formation of Extreme Arctic Sea-Ice Extent in the Summers of 2007 and 1996  

SciTech Connect (OSTI)

A warming Arctic climate is undergoing significant e 21 nvironmental change, most evidenced by the reduction of Arctic sea-ice extent during the summer. In this study, we examine two extreme anomalies of September sea-ice extent in 2007 and 1996, and investigate the impacts of cloud fraction (CF), atmospheric precipitable water vapor (PWV), downwelling longwave flux (DLF), surface air temperature (SAT), pressure and winds on the sea-ice variation in 2007 and 1996 using both satellite-derived sea-ice products and MERRA reanalysis. The area of the Laptev, East Siberian and West Chukchi seas (70-90oN, 90-180oE) has experienced the largest variation in sea-ice extent from year-to-year and defined here as the Area Of Focus (AOF). The record low September sea-ice extent in 2007 was associated with positive anomalies 30 of CF, PWV, DLF, and SAT over the AOF. Persistent anti-cyclone positioned over the Beaufort Sea coupled with low pressure over Eurasia induced easterly zonal and southerly meridional winds. In contrast, negative CF, PWV, DLF and SAT anomalies, as well as opposite wind patterns to those in 2007, characterized the 1996 high September sea-ice extent. Through this study, we hypothesize the following positive feedbacks of clouds, water vapor, radiation and atmospheric variables on the sea-ice retreat during the summer 2007. The record low sea-ice extent during the summer 2007 is initially triggered by the atmospheric circulation anomaly. The southerly winds across the Chukchi and East Siberian seas transport warm, moist air from the north Pacific, which is not only enhancing sea-ice melt across the AOF, but also increasing clouds. The positive cloud feedback results in higher SAT and more sea-ice melt. Therefore, 40 more water vapor could be evaporated from open seas and higher SAT to form more clouds, which will enhance positive cloud feedback. This enhanced positive cloud feedback will then further increase SAT and accelerate the sea-ice retreat during the summer 2007.

Dong, Xiquan; Zib, Benjamin J.; Xi, Baike; Stanfield, Ryan; Deng, Yi; Zhang, Xiangdong; Lin, B.; Long, Charles N.

2014-07-29T23:59:59.000Z

310

Intercomparison of cloud model simulations of Arctic mixed-phase boundary layer clouds observed during SHEBA/FIRE-ACE  

SciTech Connect (OSTI)

An intercomparison of six cloud-resolving and large-eddy simulation models is presented. This case study is based on observations of a persistent mixed-phase boundary layer cloud gathered on 7 May, 1998 from the Surface Heat Budget of Arctic Ocean (SHEBA) and First ISCCP Regional Experiment - Arctic Cloud Experiment (FIRE-ACE). Ice nucleation is constrained in the simulations in a way that holds the ice crystal concentration approximately fixed, with two sets of sensitivity runs in addition to the baseline simulations utilizing different specified ice nucleus (IN) concentrations. All of the baseline and sensitivity simulations group into two distinct quasi-steady states associated with either persistent mixed-phase clouds or all-ice clouds after the first few hours of integration, implying the existence of multiple equilibria. These two states are associated with distinctly different microphysical, thermodynamic, and radiative characteristics. Most but not all of the models produce a persistent mixed-phase cloud qualitatively similar to observations using the baseline IN/crystal concentration, while small increases in the IN/crystal concentration generally lead to rapid glaciation and conversion to the all-ice state. Budget analysis indicates that larger ice deposition rates associated with increased IN/crystal concentrations have a limited direct impact on dissipation of liquid in these simulations. However, the impact of increased ice deposition is greatly enhanced by several interaction pathways that lead to an increased surface precipitation flux, weaker cloud top radiative cooling and cloud dynamics, and reduced vertical mixing, promoting rapid glaciation of the mixed-phase cloud for deposition rates in the cloud layer greater than about 1-2x10-5 g kg-1 s-1. These results indicate the critical importance of precipitation-radiative-dynamical interactions in simulating cloud phase, which have been neglected in previous fixed-dynamical parcel studies of the cloud phase parameter space. Large sensitivity to the IN/crystal concentration also suggests the need for improved understanding of ice nucleation and its parameterization in models.

Morrison, H.; Zuidema, Paquita; Ackerman, Andrew; Avramov, Alexander; de Boer, Gijs; Fan, Jiwen; Fridlind, Ann; Hashino, Tempei; Harrington, Jerry Y.; Luo, Yali; Ovchinnikov, Mikhail; Shipway, Ben

2011-06-16T23:59:59.000Z

311

Geohydrology and ground-water geochemistry at a sub-Arctic Landfill, Fairbanks, Alaska. Water resources investigation  

SciTech Connect (OSTI)

The Fairbanks-North Star Borough landfill is located on silt, sand, and gravel deposits of the Tanana River flood plain, about 3 miles south of the city of Fairbanks water-supply wells. The landfill has been in operation for about 25 years in this sub-arctic region of discontinuous permafrost. The cold climate limits biological activity within the landfill with corresponding low gas and leachate production. Chloride concentrations, specific conductance, water temperatures, and earth conductivity measurements indicate a small plume of leachate flowing to the northwest from the landfill. The leachate remains near the water table as it flows northwestward toward a drainage ditch. Results of computer modeling of this local hydrologic system indicate that some of the leachate may be discharging to the ditch. Chemical data show that higher-than-background concentrations of several ions are present in the plume. However, the concentrations appear to be reduced to background levels within a short distance along the path of ground-water flow from the landfill, and thus the leachate is not expected to affect the water-supply wells.

Downey, J.S.; Sinton, P.O.

1990-01-01T23:59:59.000Z

312

Effects of Prudhoe Bay reserve pit fluids on water quality and macroinvertebrates of arctic tundra ponds in Alaska  

SciTech Connect (OSTI)

The report summarizes results from the authors` 1983 field study. Although the report should be useful in assessing impacts from reserve pit fluids under Arctic conditions and in evaluating possible management strategies, it was neither intended as an exhaustive study, nor can the results be wholly extrapolated to present-day oil field practices. Since 1983, state regulations concerning reserve pit fluid discharges have become increasingly stringent. Also, some industry practices have changed. For example, chrome lignosulfonate drill muds have been partly replaced by non-chrome lignosulfonates, and diesel oil has been largely replaced with less toxic mineral oil in drilling operations. From 1985 to 1987, the Fish and Wildlife Service began additional studies on Prudhoe Bay reserve pit fluids to examine impacts to tundra pond water, sediment, and biota; to evaluate acute and chronic toxicity through bioassays; and to examine bio-uptake of metals and hygrocarbons by resident species--including invertebrates, sedges, fish, and birds. Reports on these investigations have not yet been prepared, but should also be consulted by the interested reader when they become available.

West, R.L.; Snyder-Conn, E.

1987-09-01T23:59:59.000Z

313

The dependence of ice microphysics on aerosol concentration in arctic mixed-phase stratus clouds during ISDAC and M-PACE  

SciTech Connect (OSTI)

Cloud and aerosol data acquired by the National Research Council of Canada (NRC) Convair-580 aircraft in, above, and below single-layer arctic stratocumulus cloud during the Indirect and Semi-Direct Aerosol Campaign (ISDAC) in April 2008 were used to test three aerosol indirect effects hypothesized to act in mixed-phase clouds: the riming indirect effect, the glaciation indirect effect, and the cold second indirect effect. The data showed a correlation of R= 0.75 between liquid drop number concentration, Nliq, inside cloud and ambient aerosol number concentration NPCASP below cloud. This, combined with increasing liquid water content LWC with height above cloud base and the nearly constant profile of Nliq, suggested that liquid drops were nucleated from aerosol at cloud base. No strong evidence of a riming indirect effect was observed, but a strong correlation of R = 0.69 between ice crystal number concentration Ni and NPCASP above cloud was noted. Increases in ice nuclei (IN) concentration with NPCASP above cloud combined with the subadiabatic LWC profiles suggest possible mixing of IN from cloud top consistent with the glaciation indirect effect. The higher Nice and lower effective radius rel for the more polluted ISDAC cases compared to data collected in cleaner single-layer stratocumulus conditions during the Mixed-Phase Arctic Cloud Experiment is consistent with the operation of the cold second indirect effect. However, more data in a wider variety of meteorological and surface conditions, with greater variations in aerosol forcing, are required to identify the dominant aerosol forcing mechanisms in mixed-phase arctic clouds.

Jackson, Robert C.; McFarquhar, Greg; Korolev, Alexei; Earle, Michael; Liu, Peter S.; Lawson, R. P.; Brooks, Sarah D.; Wolde, Mengistu; Laskin, Alexander; Freer, Matthew

2012-08-14T23:59:59.000Z

314

Evaluation of Mixed-Phase Cloud Parameterizations in Short-Range Weather Forecasts with CAM3 and AM2 for Mixed-Phase Arctic Cloud Experiment  

SciTech Connect (OSTI)

By making use of the in-situ data collected from the recent Atmospheric Radiation Measurement Mixed-Phase Arctic Cloud Experiment, we have tested the mixed-phase cloud parameterizations used in the two major U.S. climate models, the National Center for Atmospheric Research Community Atmosphere Model version 3 (CAM3) and the Geophysical Fluid Dynamics Laboratory climate model (AM2), under both the single-column modeling framework and the U.S. Department of Energy Climate Change Prediction Program-Atmospheric Radiation Measurement Parameterization Testbed. An improved and more physically based cloud microphysical scheme for CAM3 has been also tested. The single-column modeling tests were summarized in the second quarter 2007 Atmospheric Radiation Measurement metric report. In the current report, we document the performance of these microphysical schemes in short-range weather forecasts using the Climate Chagne Prediction Program Atmospheric Radiation Measurement Parameterizaiton Testbest strategy, in which we initialize CAM3 and AM2 with realistic atmospheric states from numerical weather prediction analyses for the period when Mixed-Phase Arctic Cloud Experiment was conducted.

Xie, S; Boyle, J; Klein, S; Liu, X; Ghan, S

2007-06-01T23:59:59.000Z

315

Dr. William J. Gutowski will be hosting a science-team meeting of a DOE-sponsored project, "Towards Advanced Understanding and Predictive Capability of Climate Change in the Arctic using a High-  

E-Print Network [OSTI]

Dr. William J. Gutowski will be hosting a science-team meeting of a DOE-sponsored project, "Towards Regional Arctic Climate System Model". This is a collaborative project to: (i) develop a state change in the northern polar regions. The project involves PIs from four institutions: Naval Postgraduate

Debinski, Diane M.

316

65J.M. Grebmeier and W. Maslowski (eds.), The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment, DOI 10.1007/978-94-017-8863-2_4,  

E-Print Network [OSTI]

, Sapporo, Japan K. Mizobata Department of Ocean Sciences, Tokyo University of Marine Science and Technology, Tokyo, Japan J.E. Overland Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric mechanisms responsible for the diminishing sea ice cannot be explained by the leading Arctic Oscillation (AO

Zhang, Jinlun

317

Model-Data Fusion Studies of Pacific Arctic Climate and Ice-Ocean Processes Jia Wang1, Hajo Eicken2, Yanling Yu3, X. Bai4, Jinlun Zhang3, H. Hu4, Moto Ikeda5, Kohei  

E-Print Network [OSTI]

and Ecosystems Research (CILER), School of Natural Resources and Environment, University of Michigan, 4840 South1 Model-Data Fusion Studies of Pacific Arctic Climate and Ice-Ocean Processes Jia Wang1, Hajo. Tel: 734-741-2281; Email: Jia.Wang@noaa.gov 2. University of Alaska Fairbanks, Geophysical Institute

Zhang, Jinlun

318

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

SciTech Connect (OSTI)

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.

Paul Glavinovich

2002-11-01T23:59:59.000Z

319

Source Characterization and Temporal Variation of Methane Seepage from Thermokarst Lakes on the Alaska North Slope in Response to Arctic Climate Change  

SciTech Connect (OSTI)

The goals of this research were to characterize the source, magnitude and temporal variability of methane seepage from thermokarst lakes (TKL) within the Alaska North Slope gas hydrate province, assess the vulnerability of these areas to ongoing and future arctic climate change and determine if gas hydrate dissociation resulting from permafrost melting is contributing to the current lake emissions. Analyses were focused on four main lake locations referred to in this report: Lake Qalluuraq (referred to as Lake Q) and Lake Teshekpuk (both on Alaska?s North Slope) and Lake Killarney and Goldstream Bill Lake (both in Alaska?s interior). From analyses of gases coming from lakes in Alaska, we showed that ecological seeps are common in Alaska and they account for a larger source of atmospheric methane today than geologic subcap seeps. Emissions from the geologic source could increase with potential implications for climate warming feedbacks. Our analyses of TKL sites showing gas ebullition were complemented with geophysical surveys, providing important insight about the distribution of shallow gas in the sediments and the lake bottom manifestation of seepage (e.g., pockmarks). In Lake Q, Chirp data were limited in their capacity to image deeper sediments and did not capture the thaw bulb. The failure to capture the thaw bulb at Lake Q may in part be related to the fact that the present day lake is a remnant of an older, larger, and now-partially drained lake. These suggestions are consistent with our analyses of a dated core of sediment from the lake that shows that a wetland has been present at the site of Lake Q since approximately 12,000 thousand years ago. Chemical analyses of the core indicate that the availability of methane at the site has changed during the past and is correlated with past environmental changes (i.e. temperature and hydrology) in the Arctic. Discovery of methane seeps in Lake Teshekpuk in the northernmost part of the lake during 2009 reconnaissance surveys provided a strong impetus to visit this area in 2010. The seismic methods applied in Lake Teshekpuk were able to image pockmarks, widespread shallow gas in the sediments, and the relationship among different sediment packages on the lake?s bottom, but even boomer seismics did not detect permafrost beneath the northern part of the lake. By characterizing the biogeochemistry of shallow TKL with methane seeps we showed that the radical seasonal shifts in ice cover and temperature. These seasonal environmental differences result in distinct consumption and production processes of biologically-relevant compounds. The combined effects of temperature, ice-volume and other lithological factors linked to seepage from the lake are manifest in the distribution of sedimentary methane in Lake Q during icecovered and ice-free conditions. The biogeochemistry results illustrated very active methanotrophy in TKLs. Substantial effort was subsequently made to characterize the nature of methanotrophic communities in TKLs. We applied stable isotope probing approaches to genetically characterize the methanotrophs most active in utilizing methane in TKLs. Our study is the first to identify methane oxidizing organisms active in arctic TKLs, and revealing that type I methanotrophs and type II methanotrophs are abundant and active in assimilating methane in TKLs. These organisms play an important role in limiting the flux of methane from these sites. Our investigations indicate that as temperatures increase in the Arctic, oxidation rates and active methanotrophic populations will also shift. Whether these changes can offset predicted increases in methanogenesis is an important question underlying models of future methane flux and resultant climate change. Overall our findings indicate that TKLs and their ability to act as both source and sink of methane are exceedingly sensitive to environmental change.

None

2012-09-30T23:59:59.000Z

320

Arctic Energy Office  

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

de-nt0005683. * Using Artificial Barriers (Snow Fences) to Augment Fresh Water Supply Alaska's North Slope is situated in a "Polar Desert" where total annual precipitation...

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


321

ARM - International Arctic Research  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC : XDCResearch Related Information Collaborations Meetings of Interest Data

322

Arctic Energy Office  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICEAmesApplication2 (CRAC 2SSRL27 Users'weeklyJune LowerS

323

Ice Formation in Arctic Mixed-Phase Clouds: Insights from a 3-D Cloud-Resolving Model with Size-Resolved Aerosol and Cloud Microphysics  

SciTech Connect (OSTI)

The single-layer mixed-phase clouds observed during the Atmospheric Radiation Measurement (ARM) programís Mixed-Phase Arctic Cloud Experiment (MPACE) are simulated with a 3-dimensional cloud-resolving model the System for Atmospheric Modeling (SAM) coupled with an explicit bin microphysics scheme and a radar-lidar simulator. Two possible ice enhancement mechanisms Ė activation of droplet evaporation residues by condensation-followed-by-freezing and droplet freezing by contact freezing inside-out, are scrutinized by extensive comparisons with aircraft and radar and lidar measurements. The locations of ice initiation associated with each mechanism and the role of ice nuclei (IN) in the evolution of mixed-phase clouds are mainly addressed. Simulations with either mechanism agree well with the in-situ and remote sensing measurements on ice microphysical properties but liquid water content is slightly underpredicted. These two mechanisms give very similar cloud microphysical, macrophysical, dynamical, and radiative properties, although the ice nucleation properties (rate, frequency and location) are completely different. Ice nucleation from activation of evaporation nuclei is most efficient near cloud top areas concentrated on the edges of updrafts, while ice initiation from the drop freezing process has no significant location preference (occurs anywhere that droplet evaporation is significant). Both enhanced nucleation mechanisms contribute dramatically to ice formation with ice particle concentration of 10-15 times higher relative to the simulation without either of them. The contribution of ice nuclei (IN) recycling from ice particle evaporation to IN and ice particle concentration is found to be very significant in this case. Cloud can be very sensitive to IN initially and form a nonquilibrium transition condition, but become much less sensitive as cloud evolves to a steady mixed-phase condition. The parameterization of Meyers et al. [1992] with the observed MPACE IN concentration is able to predict the observed mixed-phase clouds reasonably well. This validation may facilitate the application of this parameterization in the cloud and climate models to simulate Arctic clouds.

Fan, Jiwen; Ovtchinnikov, Mikhail; Comstock, Jennifer M.; McFarlane, Sally A.; Khain, Alexander

2009-02-27T23:59:59.000Z

324

Drilling fluids and the arctic tundra of Alaska: assessing contamination of wetlands habitat and the toxicity to aquatic invertebrates and fish (journal version)  

SciTech Connect (OSTI)

Drilling for oil on the North Slope of Alaska results in the release of large volumes of used drilling fluids into arctic wetlands. These releases usually come from regulated discharges or seepage from reserve pits constructed to hold used drilling fluids. A study of five drill sites and their reserve pits showed an increase in common and trace elements and organic hydrocarbons in ponds near to and distant from reserve pits. Ions elevated in water were Ba, Cl, Cr, K, SO4 and Zn. Concentrations of Cu, Cr, Fe, Pb, and Si in sediments were higher in near and distant ponds than in control ponds. The predominant organics in drill-site waters and sediments consisted of aromatic and paraffinic hydrocarbons characteristic of petroleum or a refined product of petroleum. In 96-hr exposures in the field, toxicity to Daphnia Middendorffiana was observed in water from all reserve pits, and from two of five near ponds, but not from distant ponds. In laboratory tests with Daphnia magna, growth and reproduction were reduced in dilutions of 2.5% drilling fluid (2.5 drilling fluid: 97.5 dilution water) from one reserve pit, and 25% drilling fluid from a second.

Woodward, D.F.; Snyder-Conn, E.; Riley, R.G.; Garland, T.R.

1988-01-01T23:59:59.000Z

325

Leaching of radionuclides from furfural-based polymers used to solidify reactor compartments and components disposed of in the Arctic Kara Sea  

SciTech Connect (OSTI)

Within the course of operating its nuclear navy, the former Soviet Union (FSU) disposed of reactor vessels and spent nuclear fuel (SNF) in three fjords on the east coast of Novaya Zemlya and in the open Kara Sea within the Novaya Zemlya Trough during the period 1965 to 1988. The dumping consisted of 16 reactors, six of which contained SNF and one special container that held ca. 60% of the damaged SNF and the screening assembly from the No. 2 reactor of the atomic icebreaker Lenin. At the time, the FSU considered dumping of decommissioned nuclear submarines with damaged cores in the bays of and near by the Novaya Zemlya archipelago in the Arctic Kara Sea to be acceptable. To provide an additional level of safety, a group of Russian scientists embarked upon a course of research to develop a solidification agent that would provide an ecologically safe barrier. The barrier material would prevent direct contact of seawater with the SNF and the resultant leaching and release of radionuclides. The solidification agent was to be introduced by flooding the reactors vessels and inner cavities. Once introduced the agent would harden and form an impermeable barrier. This report describes the sample preparation of several ``Furfurol'' compositions and their leach testing using cesium 137 as tracer.

HEISER,J.H.; SIVINTSEV,Y.; ALEXANDROV,V.P.; DYER,R.S.

1999-09-01T23:59:59.000Z

326

Factors influencing the microphysics and radiative properties of liquid-dominated Arctic clouds: insight from observations of aerosol and clouds during ISDAC  

SciTech Connect (OSTI)

Aircraft measurements during the Indirect and Semi-Direct Aerosol Campaign (ISDAC) in April 2008 are used to investigate aerosol indirect effects in Arctic clouds. Two aerosol-cloud regimes are considered in this analysis: single-layer stratocumulus cloud with below-cloud aerosol concentrations (N{sub a}) below 300 cm{sup -3} on April 8 and April 26-27 (clean cases); and inhomogeneous layered cloud with N{sub a} > 500 cm{sup -3} below cloud base on April 19-20, concurrent with a biomass burning episode (polluted cases). Vertical profiles through cloud in each regime are used to determine average cloud microphysical and optical properties. Positive correlations between the cloud droplet effective radius (Re) and cloud optical depth ({tau}) are observed for both clean and polluted cases, which are characteristic of optically-thin, non-precipitating clouds. Average Re values for each case are {approx} 6.2 {mu}m, despite significantly higher droplet number concentrations (Nd) in the polluted cases. The apparent independence of Re and Nd simplifies the description of indirect effects, such that {tau} and the cloud albedo (A) can be described by relatively simple functions of the cloud liquid water path. Adiabatic cloud parcel model simulations show that the marked differences in Na between the regimes account largely for differences in droplet activation, but that the properties of precursor aerosol also play a role, particularly for polluted cases where competition for vapour amongst the more numerous particles limits activation to larger and/or more hygroscopic particles. The similarity of Re for clean and polluted cases is attributed to compensating droplet growth processes for different initial droplet size distributions.

Earle, Michael; Liu, Peter S.; Strapp, J. Walter; Zelenyuk, Alla; Imre, D.; McFarquhar, Greg; Shantz, Nicole C.; Leaitch, W. R.

2011-11-04T23:59:59.000Z

327

Intercomparison of model simulations of mixed-phase clouds observed during the ARM Mixed-Phase Arctic Cloud Experiment. Part I: Single layer cloud  

SciTech Connect (OSTI)

Results are presented from an intercomparison of single-column and cloud-resolving model simulations of a cold-air outbreak mixed-phase stratocumulus cloud observed during the Atmospheric Radiation Measurement (ARM) program's Mixed-Phase Arctic Cloud Experiment. The observed cloud occurred in a well-mixed boundary layer with a cloud top temperature of -15 C. The observed average liquid water path of around 160 g m{sup -2} was about two-thirds of the adiabatic value and much greater than the average mass of ice crystal precipitation which when integrated from the surface to cloud top was around 15 g m{sup -2}. The simulations were performed by seventeen single-column models (SCMs) and nine cloud-resolving models (CRMs). While the simulated ice water path is generally consistent with the observed values, the median SCM and CRM liquid water path is a factor of three smaller than observed. Results from a sensitivity study in which models removed ice microphysics suggest that in many models the interaction between liquid and ice-phase microphysics is responsible for the large model underestimate of liquid water path. Despite this general underestimate, the simulated liquid and ice water paths of several models are consistent with the observed values. Furthermore, there is evidence that models with more sophisticated microphysics simulate liquid and ice water paths that are in better agreement with the observed values, although considerable scatter is also present. Although no single factor guarantees a good simulation, these results emphasize the need for improvement in the model representation of mixed-phase microphysics.

Klein, Stephen A.; McCoy, Renata B.; Morrison, Hugh; Ackerman, Andrew S.; Avramov, Alexander; de Boer, Gijs; Chen, Mingxuan; Cole, Jason N.S.; Del Genio, Anthony D.; Falk, Michael; Foster, Michael J.; Fridlind, Ann; Golaz, Jean-Christophe; Hashino, Tempei; Harrington, Jerry Y.; Hoose, Corinna; Khairoutdinov, Marat F.; Larson, Vincent E.; Liu, Xiaohong; Luo, Yali; McFarquhar, Greg M.; Menon, Surabi; Neggers, Roel A. J.; Park, Sungsu; Poellot, Michael R.; Schmidt, Jerome M.; Sednev, Igor; Shipway, Ben J.; Shupe, Matthew D.; Spangenberg, Douglas A.; Sud, Yogesh C.; Turner, David D.; Veron, Dana E.; von Salzen, Knut; Walker, Gregory K.; Wang, Zhien; Wolf, Audrey B.; Xie, Shaocheng; Xu, Kuan-Man; Yang, Fanglin; Zhang, Gong

2009-02-02T23:59:59.000Z

328

Intercomparison of model simulations of mixed-phase clouds observed during the ARM Mixed-Phase Arctic Cloud Experiment. Part I: Single layer cloud  

SciTech Connect (OSTI)

Results are presented from an intercomparison of single-column and cloud-resolving model simulations of a cold-air outbreak mixed-phase stratocumulus cloud observed during the Atmospheric Radiation Measurement (ARM) program's Mixed-Phase Arctic Cloud Experiment. The observed cloud occurred in a well-mixed boundary layer with a cloud top temperature of -15 C. The observed liquid water path of around 160 g m{sup -2} was about two-thirds of the adiabatic value and much greater than the mass of ice crystal precipitation which when integrated from the surface to cloud top was around 15 g m{sup -2}. The simulations were performed by seventeen single-column models (SCMs) and nine cloud-resolving models (CRMs). While the simulated ice water path is generally consistent with the observed values, the median SCM and CRM liquid water path is a factor of three smaller than observed. Results from a sensitivity study in which models removed ice microphysics indicate that in many models the interaction between liquid and ice-phase microphysics is responsible for the large model underestimate of liquid water path. Despite this general underestimate, the simulated liquid and ice water paths of several models are consistent with the observed values. Furthermore, there is some evidence that models with more sophisticated microphysics simulate liquid and ice water paths that are in better agreement with the observed values, although considerable scatter is also present. Although no single factor guarantees a good simulation, these results emphasize the need for improvement in the model representation of mixed-phase microphysics. This case study, which has been well observed from both aircraft and ground-based remote sensors, could be a benchmark for model simulations of mixed-phase clouds.

Klein, S A; McCoy, R B; Morrison, H; Ackerman, A; Avramov, A; deBoer, G; Chen, M; Cole, J; DelGenio, A; Golaz, J; Hashino, T; Harrington, J; Hoose, C; Khairoutdinov, M; Larson, V; Liu, X; Luo, Y; McFarquhar, G; Menon, S; Neggers, R; Park, S; Poellot, M; von Salzen, K; Schmidt, J; Sednev, I; Shipway, B; Shupe, M; Spangenberg, D; Sud, Y; Turner, D; Veron, D; Falk, M; Foster, M; Fridlind, A; Walker, G; Wang, Z; Wolf, A; Xie, S; Xu, K; Yang, F; Zhang, G

2008-02-27T23:59:59.000Z

329

Arctic Microclimate Activity.doc  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICEAmesApplication2 (CRAC 2SSRL27 Users'weeklyJune LowerSArctic

330

RUSALCA 2009 Taxonomy and Zoogeography of Arctic  

E-Print Network [OSTI]

,TaxonomyandzoogeographyofarcBcmarinefishesanddetecBonofchange,RUSALCA2009PostcruiseWorkshop,Montenegro Montenegro, 10 October paper was in press at the time of the Montenegro workshop. Published online on 1 December 2010,TaxonomyandzoogeographyofarcBcmarinefishesanddetecBonofchange,RUSALCA2009PostcruiseWorkshop,Montenegro #12;RUSALCA 2009 Fish

331

Arctic Change 2009 -Woodgate Paleo role of  

E-Print Network [OSTI]

from http://sam.ucsd.edu/sio210/gifimages/A16_THETA.gif Potential Temperature at 25W SOUTH NORTH 60N 30 Overflow from http://iodp.tamu.edu/publications/PR/303PR/images/Fig01.jpg Dickson et al, refs Denmark

Washington at Seattle, University of

332

Arctic Energy Technology Development Laboratory (Part 3)  

SciTech Connect (OSTI)

Various laboratory tests were carried at the R & D facility of BJ Services in Tomball, TX with BJ Services staff to predict and evaluate the performance of the Ceramicrete slurry for its effective use in permafrost cementing operations. Although other standards such as those of the American Standard for Testing Materials (ASTM) and Construction Specification Institute (CSI) exist, all these tests were standardized by the API. A summary of the tests traditionally used in the cement slurry design as well as the API tests reference document are provided in Table 7. All of these tests were performed within the scope of this research to evaluate properties of the Ceramicrete.

See OSTI ID Number 960443

2008-12-31T23:59:59.000Z

333

3 Alpine and Arctic Soil Microbial Communities  

E-Print Network [OSTI]

-free ecosystems is presently expanding rapidly as a result of glacier and ice cap melting due to global warming receiving recent atten- tion because they are in watersheds that are the source of water (from snow and ice melt) for a large proportion of the world's population, especially in areas downstream from the Andes

Colorado at Boulder, University of

334

7, 1023510285, 2007 High Arctic in  

E-Print Network [OSTI]

, Pasadena, CA, USA 2 New Mexico Institute of Mining and Technology, Socorro, NM, USA 3 Columbus Technologies-Fourier Transform Spectrometer (ACE-FTS), Sounding of the At- mosphere using Broadband Emission Radiometry, and Aura, are used to detail the meteorology in these winters, to demonstrate its influence on transport

Paris-Sud XI, Université de

335

turner_poster.arctic_bbhrp.ppt  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched5 Industrial Carbon CaptureFY08 JointProgramApplication ofUUse of 43Rate Profiles over

336

North Slope Co. Northwest Arctic Co.  

U.S. Energy Information Administration (EIA) 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 CenterFranconia, Virginia:FAQ <Information Administration (EIA) 10 MECS Survey Data 2010 | 2006 | 20024.9513BOE Reserve Class ! ! !

337

North Slope Co. Northwest Arctic Co.  

U.S. Energy Information Administration (EIA) 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 CenterFranconia, Virginia:FAQ <Information Administration (EIA) 10 MECS Survey Data 2010 | 2006 | 20024.9513BOE Reserve Class ! !

338

North Slope Co. Northwest Arctic Co.  

U.S. Energy Information Administration (EIA) 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 CenterFranconia, Virginia:FAQ <Information Administration (EIA) 10 MECS Survey Data 2010 | 2006 | 20024.9513BOE Reserve Class !

339

The Arctic Tree Line and Climate Change  

E-Print Network [OSTI]

­ Compared the spruce treeline between 1947 and 1989 ­ Used remote sensing applications ­ Mean temperature cover - Causes surface heating Forest Tundra Chapin et al., (2005), 10 Nadezhda et al., (2008) Albedo) ­Heating effect exceeds cooling effect ­Advances in the tree line are causing global warming to occur even

Blouin-Demers, Gabriel

340

4, 50455074, 2004 Arctic ozone loss in  

E-Print Network [OSTI]

, Germany 4 Central Aerological Observatory (CAO), Moscow, Russia 5 Institute of Atmospheric Sciences and Climate (ISAC), Italian National Research Council, Bologna, Italy 6 Alfred Wegener Institute, Potsdam changes to the CTM have improved the model's ability to reproduce polar chemical and dynamical processes.5

Paris-Sud XI, Université de

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


341

Evaluating Model Parameterizations of Arctic Processes  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicy and Assistance100 ton StanatAccepted|the Effect of

342

ARM - Arctic Lower Troposphere Observed Structure (ALTOS)  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |NovemberARMContactsARM Engineering andPlansAmount

343

Arctic Lower Troposphere Observed Structure (ALTOS)  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICEAmesApplication2 (CRAC 2SSRL27 Users'weeklyJune Lower

344

Sandia National Laboratories: Arctic sea ice  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0Energy Advanced Nuclear EnergyCouncilSandia's Work

345

New view of Arctic cyclone activity from the Arctic system reanalysis  

E-Print Network [OSTI]

, this role may increase in the future climate due to the changing environmental conditions [Screen et al of Sciences, Moscow, Russia, 2 Natural Risks Assessment Laboratory, Moscow State University, Moscow, Russia, 3 for Environmental Prediction-Climate Forecast System Reanalysis), ASR shows a considerably higher number of cyclones

Howat, Ian M.

346

arctic climate change: Topics by E-print Network  

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

to Environmental Sciences and Ecology Websites Summary: of global environment and energy challenges, thereby contributing to informed debate about climate change-Directors...

347

arctic vegetation types: Topics by E-print Network  

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

Ecosystems, June 22 of manpower and finance would be desirable. The classic Mediterranean climate features warm to hot dry summers Standiford, Richard B. 33 Reviewers Rapid...

348

arctic ecosystem final: Topics by E-print Network  

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

FROST-BOIL ECOSYSTEMS A PROJECT SUMMARY The central goal of this project to changing climate. We focus on frost-boils because: (1) The processes that are involved in the self...

349

arctic vegetation damage: Topics by E-print Network  

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

gradient. Here we examine the complex interrelationships between patterned ground, climate, vegetation and soil along a north-south transect through all five bioclimate...

350

arctic pond ecosystems: Topics by E-print Network  

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

rates have increased in the boreal forest; for example, there has been a doubling of the area burned in North America in the past 20 years. The disturbance regime in tundra may...

351

arctic tundra ecosystems: Topics by E-print Network  

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

rates have increased in the boreal forest; for example, there has been a doubling of the area burned in North America in the past 20 years. The disturbance regime in tundra may...

352

arctic north america: Topics by E-print Network  

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

in the boreal forest; for example, there has been a doubling of the area burned in North America in the past 20 years. The disturbance regime in tundra may not have changed....

353

arctic microbial ecosystems: Topics by E-print Network  

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

rates have increased in the boreal forest; for example, there has been a doubling of the area burned in North America in the past 20 years. The disturbance regime in tundra may...

354

arctic tundra soils: Topics by E-print Network  

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

potential climatic change. High latitudes are characterized by large annual changes in solar input. Albedo decreases strongly from winter, when the surface is snow-covered, to...

355

arctic lake sediments: Topics by E-print Network  

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

Geosciences Websites Summary: . In summers with cold surface temperatures, the surface energy fluxes which induce mixing by heat loss were1 Climate-related variations in mixing...

356

A Concept from a Concern: THE ARCTIC EMERGENCY  

E-Print Network [OSTI]

oil well fires in Kuwait) WHAT IS THE ISSUE? #12;0000 - 4 MANY RELEVANT AND RECENT NEWS STORIES (particularly if oil is involved) What happens in (or near) one country could well generate a response from well fill that role in several countries, not just his own (recall `Red' Adair, the Texan, who put out

Kuligowski, Bob

357

Trans-Andean passage of migrating Arctic Terns over Patagonia  

E-Print Network [OSTI]

DUFFY, D.C., MCKIGHT, A. & IRONS, D.B. Journal:† Marine Ornithology Volume:† 41 Issue:† 2 Section:† Year:† 2013 Pages:† 155-159

358

arctic coastal plain: Topics by E-print Network  

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

Summary: ??Estimating seasonal high water tables (SHWTs) within soils by the evaluation of redoximorphic features is critical for soil interpretations. Certain...

359

arctic charr salveninus: Topics by E-print Network  

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

arktisten (more) Savolainen, Teija 2013-01-01 28 Heating up relations between cold fish: competition modifies responses to climate change Biology and Medicine Websites...

360

arctic east siberia: Topics by E-print Network  

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

cloud partially shielded the Earth from the solar radiation, producing the alteration of cold and warm periods characterizing the Pleistocene. The degree of shielding is sensitive...

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


361

arctic mars analog: Topics by E-print Network  

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

Mars has surely been scrutinised since the dawn of humankind. In the 16th century Tycho Brahe made accurate observations of the position of Mars that enabled Johannes...

362

Arctic Tern Banded in Greenland, Recovered in Ontario  

E-Print Network [OSTI]

T. M. Shortt Journal:† Bird Banding Volume:† 20 Issue:† 1 (January) Section:† General Notes Year:† 1949 Pages:† 50

363

Potential Oil Production from the Coastal Plain of the Arctic...  

U.S. Energy Information Administration (EIA) Indexed Site

estimating the production schedule is a simplified approach that does not evaluate productivity, economic considerations or other factors that could affect development and...

364

arctic stratus clouds: Topics by E-print Network  

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

collaboration and standardization ac- tivities of the StratusLab project at the end of Project the project can make use, while in Year 2 more focus will be put on driving...

365

Conflict or Cooperation? Arctic Geopolitics and Climate Change  

E-Print Network [OSTI]

2005a). Despite oil and gas reserves being prevalent in theaccess to new oil, gas, and mineral reserves, has led some

Ruby, Byron

2012-01-01T23:59:59.000Z

366

Potential Oil Production from the Coastal Plain of the Arctic...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

accumulations sharing similar geologic, geographic, and temporal properties such as source rock, migration, pathway, timing, trapping mechanism, and hydrocarbon type TAPS:...

367

arctic aquatic ecosystems: Topics by E-print Network  

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

Washington are in poor health, are not meeting societies expectations, and have elevated hazard for fire, insects, and disease. Diversity in stream habitats and associated...

368

arctic aquatic ecosystem: Topics by E-print Network  

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

Washington are in poor health, are not meeting societies expectations, and have elevated hazard for fire, insects, and disease. Diversity in stream habitats and associated...

369

INFLUENCE OF ARCTIC CLOUD THERMODYNAMIC PHASE ON SURFACE SHORTWAVE FLUX  

E-Print Network [OSTI]

-phase" category, can affect the surface energy balance at the same order of magnitude as greenhouse gas increases. The publisher by accepting the manuscript for publication acknowledges that the United States Government retains of this manuscript, or allow others to do so, for United States Government purposes. BNL-90978-2010-CP #12;

370

05684ArcticLakes | netl.doe.gov  

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

the gravel pit. A tower near the snow fence was equipped with a data logger, power, solar panel, camera, antenna, radio, and relative humidity and air temperature sensors to...

371

arctic soft coral: Topics by E-print Network  

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

in the surroundings. Keywords Artificial reefs ? Coral reefs ? Biodiversity ? Multivariate analysis ? Red Sea Introduction Coral reefs worldwide Benayahu, Yehuda 10...

372

arctic national wildlife: Topics by E-print Network  

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

of Refuge flora. Aggressive species such as narrow-leaved cattail (Typha angustifolia), common reed (Phragmites australis), and willow (Salix spp.), all prevalent on the Refuge,...

373

Attribution of the Arctic ozone column deficit in March 2011  

E-Print Network [OSTI]

Air Research, Kjeller, Norway. Department of Earth Systemof Oslo, N-0315 Oslo, Norway. (ivar.isaksen@geo.uio.no) ©University of Oslo, Oslo, Norway. Center for International

2012-01-01T23:59:59.000Z

374

arctic sediments svalbard: Topics by E-print Network  

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

had disappeared by ca 10 in the south- western Barents Sea, between the mainland of Norway and the southern end of Svalbard (Fig. 1A Wohlfarth, Barbara 6 Optically Stimulated...

375

arctic oil spill: Topics by E-print Network  

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

and subsequent treatment by in-situ burning in a coastal marsh in the western Gulf of Mexico.Crude Oil, Pollution Control, Skimmer Leavitt, M. 1990. New Mexico's Louisiana...

376

arctic gas pipeline: Topics by E-print Network  

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

and ROW Lower South Carolina Electric and Gas University of South Carolina Praxair Hydrogen Pipeline Working Group 3 A moving horizon solution to the gas pipeline...

377

arctic gas pipelines: Topics by E-print Network  

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

and ROW Lower South Carolina Electric and Gas University of South Carolina Praxair Hydrogen Pipeline Working Group 3 A moving horizon solution to the gas pipeline...

378

Potential Oil Production from the Coastal Plain of the Arctic...  

U.S. Energy Information Administration (EIA) Indexed Site

vary significantly based on time required for leasing after approval to develop is given. Environmental considerations and the possibility of drilling restrictions would directly...

379

arctic sea ice: Topics by E-print Network  

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

AD of transient model simulations and a new type of sen- sitivity experiments with artificial sea ice growth Born, Andreas 388 Sedimentation and particle dynamics in the...

380

arctic ice dynamics: Topics by E-print Network  

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

W. F. Vincent (2008), Seasonal dynamics of bacterial Vincent, Warwick F. 168 Dynamics of artificial spin ice: a continuous honeycomb network MIT - DSpace Summary: We model the...

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


381

Arctic Ecologies: The Politics and Poetics of Northern Literary Environments  

E-Print Network [OSTI]

environmental impact statement assesses the ice conditions that stimulated the bear to travel south; and a political history

Athens, Allison Katherine

2013-01-01T23:59:59.000Z

382

State of the Arctic Coast 2010 Scientific Review and Outlook  

E-Print Network [OSTI]

International Permafrost Association Published by: Helmholtz-Zentrum Geesthacht LOICZ International Project Office Institute of Coastal Research Max-Planck-Strasse 1 D-21502 Geesthacht, Germany April 2011 The Land and financially supported by the Institute of Coastal Research, at the Helmholtz-Zentrum Geesthacht, Germany

Douglas, Thomas A.

383

Arctic catastrophes in an idealized sea ice model Ian Eisenman  

E-Print Network [OSTI]

thermodynamics, varying open water fraction, an energy balance atmosphere, and scalable CO2. We find that summer.e., reflectiveness) between sea ice and the open water that is exposed when it melts. Bare or snow-covered sea ice reflects most sunlight back to space, while the dark ocean surface absorbs most incident light. Global

Eisenman, Ian

384

arctic weather conditions: Topics by E-print Network  

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

condition for a particular vessel. Keywords Weather Routing, Degraded Condition, Crisis Manage- ment Advice, Shortest Path Berlin,Technische Universitt 18 Weather...

385

Potential Oil Production from the Coastal Plain of the Arctic...  

U.S. Energy Information Administration (EIA) Indexed Site

Resources requesting an EIA Service Report "with plausible scenarios for ANWR supply development consistent with the most recent U.S. Geological Survey resource assessments." This...

386

Conflict or Cooperation? Arctic Geopolitics and Climate Change  

E-Print Network [OSTI]

vessels in alleged Canadian waters, the gloves have stayedleast in the short-term: water and ice may limit the formsconceptualize certain waters as part of their territory

Ruby, Byron

2012-01-01T23:59:59.000Z

387

arctic salix arctica: Topics by E-print Network  

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

high intraspecific variation in Salix arctica: Implications for a terrestrial feedback to climate change Environmental Sciences and Ecology Websites Summary: Frequent sexual...

388

arctic seas assessment: Topics by E-print Network  

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

climate connection, total solar irradiance, Atlantic meridional overturning circulation, climate variability. Willie W. -h. Soon 2009-01-01 398 2003: Global analyses of sea...

389

arctic ocean: Topics by E-print Network  

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

climate connection, total solar irradiance, Atlantic meridional overturning circulation, climate variability. Willie W. -h. Soon 2009-01-01 324 Geographic muting of changes in the...

390

arctic ocean hydrocarbon: Topics by E-print Network  

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

climate connection, total solar irradiance, Atlantic meridional overturning circulation, climate variability. Willie W. -h. Soon 2009-01-01 340 Geographic muting of changes in the...

391

Effects of simulated natural variability on Arctic temperature projections  

E-Print Network [OSTI]

- sea ice-ocean model is used to examine the effects of natural variability on climate projections starting from different strengths and phases of the Atlantic Meridional Overturning Circulation and cryosphere give rise to a variety of climate feedbacks as such as ice- albedo and cloud feedbacks. The direct

Drange, Helge

392

The Genetic Prehistory of the New World Arctic  

E-Print Network [OSTI]

the Danish National Sequencing Centre, T. B. Brand and P. S. Olsen for technical assistance, anonymous donors for providing DNA samples, A. Helgason and S. Sunna Ebenesersdůttir from deCODE for their input on mtDNA phylogenies, A, Di Rienzo for access... -day worldwide non-African populations. The graded heat key (to the right of the image) represents the magnitude of the computed f3-statistics. Figure 3. Genetic affinities of the Neo-Eskimo Thule. A) Sequencing data-based maximum likelihood trees...

Raghavan, Maanasa; DeGiorgio, Michael; Albrechtsen, Anders; Moltke, Ida; Skoglund, Pontus; Korneliussen, Thorfinn S.; GrÝnnow, Bjarne; Appelt, Martin; GullÝv, Hans Christian; Friesen, T. Max; Fitzhugh, William; MalmstrŲm, Helena; Rasmussen, Simon; Olsen, Jesper; Melchior, Linea; Fuller, Benjamin T.; Fahrni, Simon M.; Stafford, Thomas Jr; Grimes, Vaughan; Renouf, M. A. Priscilla; Cybulski, Jerome; Lynnerup, Niels; Lahr, Marta Mirazon; Britton, Kate; Knecht, Rick; Arneborg, Jette; Metspalu, Mait; Cornejo, Omar E.; Malaspinas, Anna-Sapfo; Wang, Yong; Rasmussen, Morten; Raghavan, Vibha; Hansen, Thomas V. O.; Khusnutdinova, Elza; Pierre, Tracey; Dneprovsky, Kirill; Andreasen, Claus; Lange, Hans; Hayes, M. Geoffrey; Coltrain, Joan; Spitsyn, Victor A.; GŲtherstrŲm, Anders; Orlando, Ludovic; Kivisild, Toomas; Villems, Richard; Crawford, Michael H.; Nielsen, Finn C.; Dissing, JÝrgen; Heinemeier, Jan; Meldgaard, Morten; Bustamante, Carlos; OíRourke, Dennis H.; Jakobsson, Matthias; Gilbert, M. Thomas P.; Nielsen, Rasmus; Willerslev, Eske

2014-08-29T23:59:59.000Z

393

APPLIED ISSUES Recovery of three arctic stream reaches from experimental  

E-Print Network [OSTI]

ecosystems caused by climate change or local anthropogenic activity may have dramatic and persistent JONATHAN P. BENSTEAD,* ADRIAN C. GREEN,* LINDA A. DEEGAN,* BRUCE J. PETERSON,* KARIE SLAVIK,* WILLIAM B positively (e.g. the mayfly Ephemerella, most chir- onomid midge taxa) or negatively (e.g. the tube-building

Benstead, Jon

394

arctic coastline eroding: Topics by E-print Network  

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

of spatial long-range correlations in the lithology of coastal landscapes on the fractal behavior of the corresponding coastlines. In the model, the resistance of a coast...

395

arctic tanker design: Topics by E-print Network  

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

of the leading shipping companies in the world. Evi Plomaritou 16 DETECTION OF CORROSION ATTACK ON OIL TANKERS BY MEANS OF ACOUSTIC EMISSION (AE) CiteSeer Summary: The...

396

Arctic Ecologies: The Politics and Poetics of Northern Literary Environments  

E-Print Network [OSTI]

are writing about the melting of polar ice caps caused byice cap collapsing, glaciers shrinking, and permafrost melting

Athens, Allison Katherine

2013-01-01T23:59:59.000Z

397

Eighth International Congress of Arctic Social Sciences (ICASS VIII)  

E-Print Network [OSTI]

conglomerations, requires new models of food and energy security, and of access to employment, health care to sustainability. Appropriate governance regimes for renewable and non-renewable resources underpin sustainable website). You will need to provide a rough budget of your estimated travel expenses. We anticipate

Northern British Columbia, University of

398

arctic permafrost soil: Topics by E-print Network  

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

Websites Summary: Warming Causes Surface Permafrost Degradation Natali et al. 2010, Global Change Biology Winter warming Symposium February, 2013 12;Global Vegetation C 650 Pg...

399

The seasonal dynamics of Arctic surface hydrology in permafrost environments  

E-Print Network [OSTI]

understanding of permafrost surface hydrology. The free access to extensive archives of satellite data through the European Space Agencey (ESA) as well as the National Aeronau- tics and Space Administration (NASA) has become vital. Most importantly, access... support throughout my time at the Scott Polar Research Institute (SPRI). At the beginning of my studies I was privileged to secure a DOC-fFORTE [Women in Research and Technology] Fellowship of the Austrian Academy of Sciences (÷AW). I would like to thank...

Trofaier, Anna Maria

2014-11-11T23:59:59.000Z

400

arctic boundary layer: Topics by E-print Network  

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

of many theoretical studies over the last forty years. (A Davies, Christopher 18 Tropical cyclone boundary layer shocks CERN Preprints Summary: This paper presents numerical...

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


401

arctic fjord sediments: Topics by E-print Network  

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

parameters reflect the strong seasonality of sun radiation, while water salinity and temperature fluctuate within a narrow range. Concentrations of nutrients and suspended matter...

402

Next-Generation Ecosystem Experiments NGEE Arctic Quarterly Report  

E-Print Network [OSTI]

land model for inclusion in Earth system models. #12;3 Details at a Glance Activities during the April

403

Next-Generation Ecosystem Experiments NGEE Arctic Quarterly Report  

E-Print Network [OSTI]

Clips 10 Appendix 11 #12;2 Can Microbial Community Composition be Incorporated into Earth System Models? Accurate projections of greenhouse gas fluxes by Earth System Models require that they contain process and to mechanistically represent the complex plant-microbe-soil system in Earth System Models. Xu et al. (2011) Feedback

404

Nighttime Cloud Detection Over the Arctic Using AVHRR Data  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andDataNationalNewport NewsWayne Hurlbert! LBNL/NERSC

405

ARM - Publications: Science Team Meeting Documents: An Arctic Springtime  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops AtmosphericApplication andAn AssessmentARMArctic Facility for Atmospheric

406

Picture of the Week: Climate feedbacks from a warming arctic  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearch Welcome to theNews & Blog ¬ĽPhysics PhysicsWeek ¬Ľ Picture

407

National Strategy for the Arctic Region Stakeholder Outreach Meeting:  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage | Department

408

National Strategy for the Arctic Region Stakeholder Outreach Meeting:  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage |

409

National Strategy for the Arctic Region Stakeholder Outreach Meeting:  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage |Bethel |

410

National Strategy for the Arctic Region Stakeholder Outreach Meeting:  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage |Bethel

411

National Strategy for the Arctic Region Stakeholder Outreach Meeting: Dutch  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage

412

National Strategy for the Arctic Region Stakeholder Outreach Meeting: Nome  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage| Department

413

National Strategy for the Arctic Region Tribal Consultation Session: Barrow  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage| Department|

414

National Strategy for the Arctic Region Tribal Consultation Session: Bethel  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage| Department||

415

National Strategy for the Arctic Region Tribal Consultation Session: Dutch  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage|

416

National Strategy for the Arctic Region Tribal Consultation Session: Nome |  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage|Department of

417

National Strategy for the Arctic Region Tribal Consultation and Stakeholder  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation, LakeAnchorage|Department

418

National Strategy for the Arctic Tribal Consultation Session: Fairbanks |  

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 Rank EERE:Year in3.pdfEnergy HealthCommentsAugustNational Science Foundation,

419

National Strategy for the Arctic Region | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen OwnedofDepartment ofJaredOak Ridge√ʬĬôs EMGeothermal energy inCreatedNational

420

Conflict or Cooperation? Arctic Geopolitics and Climate Change  

E-Print Network [OSTI]

Climate Change Byron Ruby arms, it is not a complete surprise to see that RussiaóClimate Change Byron Ruby On August 2, 2007, a mini-submarine carrying two members of RussiaíClimate Change Byron Ruby quantitative simulations were the chances for militarized conflict above 10%, and one of those disputesóRussia

Ruby, Byron

2012-01-01T23:59:59.000Z

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


421

arctic applied methods: Topics by E-print Network  

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

methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

422

The dependence of ice microphysics on aerosol concentration in arctic  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2 andThe MolecularPlaceThe publicationmixed-phase

423

ARM - Field Campaign - Arctic Lower Troposphere Observed Structure (ALTOS)  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered¬ČPNGExperience4AJ01)3, 2010SeptemberInfraredgovCampaignsAircraft Carbon

424

ARM - Field Campaign - Arctic Winter Water Vapor IOP  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered¬ČPNGExperience4AJ01)3, 2010SeptemberInfraredgovCampaignsAircraft

425

ARM - Field Campaign - Millimeter-wave Radiometric Arctic Winter  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops Atmospheric Optical Depth (AOD) by Microtops ARM Data(MC3E) ExperimentMeasurements

426

ARM - Field Campaign - Mixed-Phase Arctic Cloud Experiment  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops Atmospheric Optical Depth (AOD) by Microtops ARM Data(MC3E)govCampaignsMixed-Phase

427

ARM - Field Campaign - Supplement to Arctic Lower Troposphere Observed  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops Atmospheric Optical DepthgovCampaignsSpring 1994govCampaignsSummer UAV

428

Relationship Between Arctic Clouds and Synoptic-Scale Variability  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298,NIST31 ORV 15051 Modification MO 12 PageRelated

429

05684ArcticLakes | netl.doe.gov  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered¬ČPNG IHDR¬Ä√ćSolar Energy41 (Dollars andUsing Artificial Barriers to Augment Fresh

430

Arctic Microclimates ARM Education Program Teacher In-service  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICEAmesApplication2 (CRAC 2SSRL27 Users'weeklyJune

431

Towards a Characterization of Arctic Mixed-Phase Clouds  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2Topo II: An EnzymePersonal Computerso wSolution

432

Simulating Arctic mixed-phase clouds: Sensitivity to environmental  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing Smart GridShiftMethod for

433

THE INTERNATIONAL POLAR YEAR PROJECT `KINNVIKA' ARCTIC WARMING AND IMPACT  

E-Print Network [OSTI]

small groups have temporarily used its facilities, but the station remains remote and logistically an international IPY4 project dedicated to research around the old abandoned station in Kinnvika (Fig. 2

Moore, John

434

Attribution of the Arctic ozone column deficit in March 2011  

E-Print Network [OSTI]

spring and thereby environmental damage [Callaghan et al. ,Our focus is on environmental damage associated with extreme

2012-01-01T23:59:59.000Z

435

arctic pteropod limacina: Topics by E-print Network  

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

could be very sensitive to ocean acidification driven by the increase of anthropogenic CO2 emissions. The effect of changes in the seawater chemistry was investigated on...

436

Dynamics of Arctic and Sub-Arctic Climate and Atmospheric Circulation: Diagnosis of Mechanisms and Model Biases Using data Assimilation  

SciTech Connect (OSTI)

These five publications are summarized: Key role of the Atlantic Multidecadal Oscillation in 20th century drought and wet periods over the Great Plains; A Sub-Seasonal Teleconnection Analysis: PNA Development and Its Relationship to the NAO; AMO's Structure and Climate Footprint in Observations and IPCC AR5 Climate Simulations; The Atlantic Multidecadal Oscillation in 20th Century Climate Simulations: Uneven Progress from CMIP3 to CMIP5; and Tropical Atlantic Biases in CCSM4.

Sumant Nigam

2013-02-05T23:59:59.000Z

437

E-Print Network 3.0 - arctic aerosol burden Sample Search Results  

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

and surface... generally exhibits low aerosol ... Source: National Oceanic and Atmospheric Administration, Pacific Marine Environmental Laboratory, Atmopsheric Chemistry and...

438

arm mixed-phase arctic: Topics by E-print Network  

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

surface energy budget. However, the treatment of mixed-phase clouds in most current climate models is crude because the detailed microphysical processes involved in mixed-phase...

439

E-Print Network 3.0 - arctic springtail onychiurus Sample Search...  

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

and Silverfishes (Apterygota). Chapter 13.5. In: Roques A et... .47 Abstract The alien fauna of Apterygota is still limited in Europe. Springtails (Collembolla) alien...

440

Paleoecological evidence for abrupt cold reversals during peak Holocene warmth on Baffin Island, Arctic Canada  

E-Print Network [OSTI]

climate forcings, including volcanic eruptions and solar variability, and perturbations such as freshwaterPaleoecological evidence for abrupt cold reversals during peak Holocene warmth on Baffin Island Paleolimnology Abrupt climate change A continuous record of insect (Chironomidae) remains preserved in lake

Briner, Jason P.

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


441

Evidence linking Arctic amplification to extreme weather in mid-latitudes  

E-Print Network [OSTI]

freeze- up begins, the extra solar energy absorbed during summer in these vast new expanses of open water probability of extreme weather events that result from prolonged conditions, such as drought, flooding, cold circulation will be affected, but how? While global climate models project that the frequency and intensity

Francis, Jennifer

442

Climate Change and Emissions Impacts on Atmospheric PAH Transport to the Arctic  

E-Print Network [OSTI]

We investigate effects of 2000Ė2050 emissions and climate changes on the atmospheric transport of three polycyclic aromatic hydrocarbons (PAHs): phenanthrene (PHE), pyrene (PYR), and benzo[a]pyrene (BaP). We use the GEOS-Chem ...

Zhang, Yanxu

443

E-Print Network 3.0 - arctic operations case Sample Search Results  

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

2009 Report 12;Today's ... Source: Kuligowski, Bob - Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NOAA Collection:...

444

E-Print Network 3.0 - arctic summer sea Sample Search Results  

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

Navigational Warning ... Source: Kuligowski, Bob - Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NOAA Collection:...

445

E-Print Network 3.0 - arctic pilot project Sample Search Results  

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

and ecosystem projects, but ... Source: Kuligowski, Bob - Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NOAA Collection:...

446

November, 2010 J. E. Cherry, International Arctic Research Center and Institute of Northern  

E-Print Network [OSTI]

;#12;TABLE OF CONTENTS 1. Introduction 1 2. A Description of the Hydroelectric Power Facilities in Southeast and Their Robustness 18 6. Discussion: Impacts of Climate Variability and Change on Existing and Future Hydroelectric). ABSTRACT: The useful lifespan of hydroelectric power infrastructure is 50 years or more; this is long

447

Flow cytometric analysis of DNA content in spawning and coastal samples of arctic cisco (Coregonus autumnalis)  

E-Print Network [OSTI]

single individuals, or even adequate samples from a single population may be grossly insufficient for determining the genome size of a species (Johnson et al. , 1987). The trend in modern studies of genome size is to report DNA content means, standard... be discussed relative to other taxa. To date, reports of intraspecific variation in DNA content have been limited. Sherwood and Patton (1982) reported up to 354 intraspecific variation in the genus ~fho (P k t BoPh ). B t* d B' kh (1999) 9 d variation...

Lockwood, Samuel Fournier

1989-01-01T23:59:59.000Z

448

Arctic Change 2009 Woodgate Wk 5 -Mon Do the volumes work out?  

E-Print Network [OSTI]

, Plueddemann and MANY others http://www.whoi.edu/science/PO/arcticgroup/projects/eddies.html halocline depth polynyas Warm, Salty, ~ 1000m deep, AC - instabilities on upstream front (e.g. St Anna) 40 cm/s; ~ 10km, 1974 - cope with growth and decay NO = 9 NO3 + O2 PO = 135 PO4 + O2 N:P ratios NO:PO ratios N* (N star

Washington at Seattle, University of

449

High arctic heath soil respiration and biogeochemical dynamics during summer and autumn freeze-in effects  

E-Print Network [OSTI]

-growing season lasting 9­10 months, ecosystem carbon sequestration in summer may be offset by cumulative soil CO2 autumn. We speculate that this is due to intensified depletion of recently fixed plant carbon by soil through plant-associated carbon pools. Nitrogen addition alone consistently increased Rsoil, but when

450

Effects of continental-scale snow albedo anomalies on the wintertime Arctic oscillation  

E-Print Network [OSTI]

NA snow forcing induce remote cooling over Eurasia? Althoughto the area of remote surface cooling in Figure 6. [ 32 ]cooling over Siberia, where there is no snow forcing, suggests NA snow cover can also induce a remote

Allen, R. J; Zender, C. S

2010-01-01T23:59:59.000Z

451

Basalt petrogenesis beneath slow- and ultraslow-spreading Arctic mid-ocean ridges  

E-Print Network [OSTI]

To explore the ability of melting mafic lithologies to produce alkaline ocean-island basalts (OIB), an experimental study was carried out measuring clinopyroxene (Cpx)melt and garnet (Gt)-melt partition coefficients during ...

Elkins, Lynne J

2009-01-01T23:59:59.000Z

452

E-Print Network 3.0 - arctic crude oil Sample Search Results  

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

Energy Storage, Conversion and Utilization 98 Time-varying Predictability in Crude Oil Markets: The Case of GCC Countries Summary: Time-varying Predictability in Crude Oil...

453

Source attributions of pollution to the Western Arctic during the NASA ARCTAS field campaign  

E-Print Network [OSTI]

burning in Siberia and Kazakhstan as an important source forprimar- ily over Russia/Kazakhstan in April and over North

2013-01-01T23:59:59.000Z

454

Satellite Microwave remote sensing of contrasting surface water inundation changes within the ArcticBoreal Region  

E-Print Network [OSTI]

-atmosphere water, energy and carbon (CO2, CH4) fluxes, and potential feedbacks to climate change. Here we report fractional open water (Fw) cover from the Advanced Microwave Scanning Radiometer for EOS (AMSR-E). The AMSR ) of regions above 49¬įN (Brown et al., 1998). Although permafrost is widespread at high latitudes due to low

Montana, University of

455

Arctic Transitions in the LandAtmosphere System (ATLAS): Background, objectives, results, and future directions  

E-Print Network [OSTI]

, commercial fisheries resources, infrastructure, and industrial activity (e.g., oil and gas development for human live- lihoods in high-latitude regions and elsewhere through effects on subsistence resources

McGuire, A. David

456

Gravity waves in the arctic mesosphere during the MaCWAVE/MIDAS summer rocket program  

E-Print Network [OSTI]

with the mean state. Previous rocket campaigns addressing gravity wave dynam- ics included MAC/SINE, MAC/EPSILON [Thrane, 1990], and CADRE/MALTED [Fritts et al., 1997]. [3] The MaCWAVE/MIDAS campaign in July 2002 the And√łya Rocket Range in northern Norway with ground-based lidar and radar measurements from the nearby

457

A study of the marine sediments of the Canadian eastern arctic archipelago  

E-Print Network [OSTI]

to nn overhxnging cliff o. ' cocr eiy cry txl'lne rocl, . over wuch of the urex it wax ob;erved thxt thc pre;ent beaches sxe wi'thin c fcw hundt'ed feet Af c ' 1 Ff' ' of ever: ~ hundred feet 1" e. 'ovation, The e c iff ' thong the chore'ine nu...

Perry, Richard Baker

1959-01-01T23:59:59.000Z

458

E-Print Network 3.0 - arctic seabirds characterization Sample...  

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

DRAFT FOR PUBLIC REVIEW Summary: 4E Seabird Interactions May 2008 DRAFT FOR PUBLIC REVIEW Environmental AssessmentRegulatory Impact... for Seabird Avoidance Measures in the...

459

E-Print Network 3.0 - anadromous arctic charr Sample Search Results  

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

Academic Publishers. Printed in the Netherlands. Summary: derived from wild anadromous fish. Sympatric anadromous and resident forms of brook charr of the Laval... ), and...

460

E-Print Network 3.0 - arctic cisco coregonus Sample Search Results  

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

Page: << < 1 2 3 4 5 > >> 1 SYMONS, P. E. K. 1971. Estimating distances between fish schooling in an Summary: ofactive feeding by a coregonid species during the prespawning...

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


461

E-Print Network 3.0 - arctic aboriginal populations Sample Search...  

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

provincially and 3.8 nationally... . The northern region's Aboriginal ... Source: Saskatchewan, University of - Department of Physics and Engineering Physics, Plasma Physics...

462

E-Print Network 3.0 - arctic tundra final Sample Search Results  

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

of Alberta Collection: Renewable Energy 14 Surface energy exchanges along a tundra-forest transition and feedbacks to climate Summary: of five sites representing the major...

463

E-Print Network 3.0 - arctic bramble rubus Sample Search Results  

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

... Source: Forest Research Agency of the UK Forestry Commission Collection: Renewable Energy 2 Journal of Tropical Ecology (2008) 24:19. Copyright 2008 Cambridge University Press...

464

Quaternary Science Reviews 23 (2004) 529560 Holocene thermal maximum in the western Arctic (0180  

E-Print Network [OSTI]

of Colorado, Boulder, USA f Department of Geography, University of Oregon, Eugene, USA g College of Forest of Geography, University of Trondheim, Norway m Department of Geography, University of Cincinnati, Ohio, USA n through its impact on surface energy balance and ocean circulation. The lingering ice also attests

Oswald, Wyatt

465

E-Print Network 3.0 - arctic shrub tundra Sample Search Results  

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

Environmental Sciences and Ecology 7 Surface energy exchanges along a tundra-forest transition and feedbacks to climate Summary: of five sites representing the major...

466

Z .Chemical Geology 158 1999 173188 Grain size separation and sediment mixing in Arctic Ocean  

E-Print Network [OSTI]

' FBE . At the land­ocean transition the reduction of the particle velocity causes a deposition ages from the FBE reflect the age of the Siberian flood Z .basalt of about 220 Ma and the initial ratio samples from the western Laptev Sea Z . 143 144 west of 1208E fall between LME and FBE. Mixing

Schöne, Bernd R.

467

Planetary waves in the upper stratosphere and lower mesosphere during 2009 Arctic major stratospheric warming  

E-Print Network [OSTI]

J. M. : The quasi-two-day wave studied using the Northernview of nonlinear water waves: the Hilbert spectrum, Annu.Pancheva, D. V. : Quasi-2-day wave and tidal variability

Kishore, P.; Velicogna, I.; Venkat Ratnam, M.; Jiang, J. H; Madhavi, G. N

2012-01-01T23:59:59.000Z

468

TOPOGRAPHY OF TITAN'S ARCTIC LAKE DISTRICT: IMPLICATIONS FOR SUBSURFACE LIQUID ALKANE FLOW. K. L. Mitchell1  

E-Print Network [OSTI]

the calibration of overlapping Titan SAR imagery obtained from different antenna feeds (beams) of the RADAR: The multi-beam nature of the Cas- sini RADAR instrument makes possible the applica- tion of the SAR with SAR footprints. In its original implementation, the SARTopo algorithms smooth the noisy data by 51

469

E-Print Network 3.0 - arctic kara sea Sample Search Results  

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

8 INTRODUCTION Although much progress has been recently made concerning the Summary: -level rise. Keywords: late Quaternary stratigraphy, Barents-Kara ice sheet, Pechora Sea,...

470

Proceedings of the ASME 28th International Conference on Ocean, Offshore and Arctic Engineering  

E-Print Network [OSTI]

-based design and optimization methodology to improve the energy efficiency of self-adapting composite marine- ficiency. This problem can be avoided or minimized by using blades made of carbon fiber reinforced plastics

Baker, Jack W.

471

E-Print Network 3.0 - arctic vegetation amplify Sample Search...  

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

Y N C H E T A L . 2001 American Meteorological Society Summary: vegetation, permafrost, soil, and the atmo- sphere to amplify ecosystem change. MacDonald et al. (1993... the...

472

A selective sweep on a deleterious mutation in the CPT1A gene in Arctic populations  

E-Print Network [OSTI]

,†MŠrio†Vicente1,†Mario†Mitt7,† Michael†DeGiorgio8,†Zuzana†Faltyskova1,†Yali†Xue9,†Qasim†Ayub9,†Michal†Szpak9,†Reedik† Mšgi7,†Anders†Eriksson10,11,†Andrea†Manica10,†Maanasa†Raghavan12,†Morten†Rasmussen12,† Simon†Rasmussen13,†Eske†Willerslev12,†Antonio... †Vidal?Puig9,14,†Chris†Tyler?Smith9,†Richard† Villems7,15,16,††Rasmus†Nielsen2,†Mait†Metspalu7,15,†Boris†Malyarchuk17,†Miroslava†Derenko17,† Toomas†Kivisild1,15,**†† 1†Department†of†Archaeology†and†Anthropology,†University†of†Cambridge,†Cambridge,†CB2†3QG...

Clemente, Florian J.; Cardona, Alexia; Inchley, Charlotte E.; Peter, Benjamin M.; Jacobs, Guy; Pagani, Luca; Lawson, Daniel J.; Ant„o, Tiago; Vicente, MŠrio; Mitt, Mario; DeGiorgio, Michael; Faltyskova, Zuzana; Xue, Yali; Ayub, Qasim; Szpak, Michal; Mšgi, Reedik; Eriksson, Anders; Manica, Andrea; Raghavan, Maanasa; Rasmussen, Morten; Rasmussen, Simon; Willerslev, Eske; Vidal?Puig, Antonio; Tyler?Smith, Chris; Villems, Richard; Nielsen, Rasmus; Metspalu, Mait; Malyarchuk, Boris; Derenko, Miroslava; Kivisild, Toomas

2014-10-23T23:59:59.000Z

473

E-Print Network 3.0 - arctic region baltic Sample Search Results  

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

investigate the water cycle and the heat balance in GCM and regional... of a 3D-coupled ice- ocean model for the Baltic Sea and ... Source: Ds, Kristofer - Department of...

474

Dissolved organic matter discharge in the six largest arctic rivers-chemical composition and seasonal variability  

E-Print Network [OSTI]

) -1 , c) Acid to aldehyde ratios for vanillyls and syringyls, d) Syringyls/Vanillyls (S/V) & Cinnamyls/ vanillyls (C/V), e) p-coumaric acid/ferulic acid (CAD/FAD) & p- hydroxybenzaldehyde /total p-hydroxy group (PON/P), f) 3,5...-hydroxy group (PON/P), f) 3,5- dihydroxybenzoic acid/vanillyl (DiBA/V) & total p-hydroxy group/ (vanillyl + syringyl) (P/(V+S))............................................................... 72 27 Kolyma River discharge (m 3 s -1 ), and a...

Rinehart, Amanda J.

2009-05-15T23:59:59.000Z

475

E-Print Network 3.0 - atlantic-arctic region present Sample Search...  

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

sources for the radionuclides in the ... Source: Drange, Helge - Nansen Environmental and Remote Sensing Center Collection: Geosciences 3 ORIGINAL ARTICLE Syringeal anatomy and...

476

E-Print Network 3.0 - arctic lake correlate Sample Search Results  

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

Sciences, University of Alberta Collection: Geosciences 2 414 IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, VOL. 5, NO. 3, JULY 2008 Automated Image Registration for Summary:...

477

Scaling Process Studies and Observations in the Arctic for Improved Climate Predictability  

E-Print Network [OSTI]

and representation of that knowledge in Earth System models. Geomorphological units, including thaw lakes, drained

Hubbard, Susan

478

Improved Climate Prediction through a System Level Understanding of Arctic Terrestrial Ecosystems  

E-Print Network [OSTI]

understood and many remain uncertain in terms of their representation in Earth System models. Increasing our System models. By extending an already well-established framework for fractional sub-grid area System Model grid cell (i.e., 30x30 km grid size). This vision includes mechanistic studies in the field

Hubbard, Susan

479

Short-lived pollutants in the Arctic: their climate impact and possible mitigation strategies  

E-Print Network [OSTI]

present-day fossil, bio-fuel, and biomass burning emissionsresponse of fossil fuel and bio- fuel soot, accounting forcarbon) from fossil fuel, bio-fuel, and biomass combustion (

Quinn, P.K.

2008-01-01T23:59:59.000Z

480

Proceedings of OMAE08 27th International Conference on Offshore Mechanics and Arctic Engineering  

E-Print Network [OSTI]

(second-order) waves for estimating loads on an offshore wind turbine, with a focus on the fore-aft tower the influence of al- ternative wave models on the behavior of wind turbines (e.g., on the tower response OF LONG-TERM OFFSHORE WIND TURBINE LOADS P. Agarwal Dept. of Civil, Arch., and Env. Engineering University

Manuel, Lance

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


481

An annual cycle of Arctic cloud characteristics observed by radar and lidar at SHEBA  

E-Print Network [OSTI]

distribution of cloud boundary heights, and occurrence of liquid phase in clouds are determined from radar-observed clouds containing liquid was 73% for the year. The least amount of liquid water phase was observed during-detected clouds. Liquid was distributed in a combination of all-liquid and mixed phase clouds, and was detected

Shupe, Matthew

482

Simulating mixed-phase Arctic stratus clouds: Sensitivity to ice initiation mechanisms  

E-Print Network [OSTI]

parameterization in BRM scheme accounts for two general mech- anisms distinguishable according to the involvement of liquid phase in the ice

Sednev, I.

2009-01-01T23:59:59.000Z

483

P2.11 AN ANNUAL CYCLE OF ARCTIC CLOUD MICROPHYSICS Matthew D. Shupe*  

E-Print Network [OSTI]

to classify cloud scenes as all- ice, all-liquid, mixed-phase, or precipitating so that the appropriate ice/snow-covered surfaces. Several studies have demonstrated the importance of specific cloud microphysical properties on cloud-radiation and ice-albedo feedback mechanisms; these in turn have bearing

Shupe, Matthew

484

Rapid dynamic activation of a marine-based Arctic ice cap  

E-Print Network [OSTI]

. 8908 Meier, M. F., M. B. Dyurgerov, U. K. Rick, S. OíNeel, W. Tad Pfeffer, R. S. Anderson, S. P. Anderson, and A. F. Glazovsky (2007), Glaciers dominate Eustatic sea-level rise in the 21st century, Science, 317(5841), 1064Ė1067. Moholdt, G., J. O. Hagen...

McMillan, Malcolm; Shepherd, Andrew; Gourmelen, Noel; Dehecq, Amaury; Leeson, Amber; Ridout, Andrew; Flament, Thomas; Hogg, Anna; Gilbert, Lin; Benham, Toby; van den Broeke, Michiel; Dowdeswell, Julian A.; Fettweis, Xavier; NoŽl, Brice; Strozzi, Tazio

2014-12-02T23:59:59.000Z

485

E-Print Network 3.0 - arctic terns sterna Sample Search Results  

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

Hawai'i at Manoa Collection: Environmental Sciences and Ecology 49 Effects on birds of an offshore wind park at Horns Rev: Environmental Summary: , Pomarine, and Long-tailed Skua,...

486

E-Print Network 3.0 - arctic moss aulacomnium Sample Search Results  

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

dominated by emergent herba- ceous angiosperms; (4... Streambed Rocky Shore Unconsolidated Shore Moss-Lichen Wetland Emergent Wetland Scrub-Shrub Wetland Forested Source:...

487

E-Print Network 3.0 - arctic intertidal mud Sample Search Results  

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

Sciences and Ecology ; Geosciences 31 1 -SUBTIDAL 2 -INTERTIDAL RB ROCK UB UNCONSOLIDATED AB AQUATIC BED RF -REEF OW -OPEN WATER AB AQUATIC BED RF REEF RS ROCKY SHORE US...

488

High Aitken Nucleus Concentrations Above Cloud Tops in the Arctic Timothy J. Garrett*  

E-Print Network [OSTI]

cavity by passing the air flow through a cyclone separator. The separator removes droplets larger than 5

489

Proceedings of OMAE2006 25th International Conference on Offshore Mechanics and Arctic Engineering  

E-Print Network [OSTI]

from the web-based KNMI/ERA-40 Wave Atlas at http://www.knmi.nl/waveatlas. INTRODUCTION The European features of the atlas. The atlas contains some explanatory text, a basic description of the wind and wave - THE WEB-BASED KNMI/ERA-40 WAVE ATLAS Andreas Sterl Royal Netherlands Meteorological Institute (KNMI) De

Haak, Hein

490

Effects of Contemporary Winter Seismic Exploration on Low Arctic Plant Communities and Permafrost  

E-Print Network [OSTI]

seismic exploration technologies, on tundra plant communities and soils in four vegetation types seismic exploration programs are primarily related to off-road vehicle travel and include mechanical or standing dead vegetation (Hernandez, 1973; Rickard and Brown, 1974), damage to/ compression of the soil

Macdonald, Ellen

491

Ris-R-1321(EN) On Weapons Plutonium in the Arctic  

E-Print Network [OSTI]

on land has been limited and indications were, that americium has a faster transport mechanism from is that it seems like uranium is leaching from the particles faster than plutonium and americium. This thesis

492

2006 Nature Publishing Group Episodic fresh surface waters in the Eocene Arctic  

E-Print Network [OSTI]

and heat supply owing to the influx of waters from adjacent oceans. We suggest that onset and termination

Jakobsson, Martin

493

Novel Chemically-Bonded Phosphate Ceramic Borehole Sealants (Ceramicretes) for Arctic Environments  

SciTech Connect (OSTI)

Novel chemically bonded phosphate ceramic borehole sealant, i.e. Ceramicrete, has many advantages over conventionally used permafrost cement at Alaska North Slope (ANS). However, in normal field practices when Ceramicrete is mixed with water in blenders, it has a chance of being contaminated with leftover Portland cement. In order to identify the effect of Portland cement contamination, recent tests have been conducted at BJ services in Tomball, TX as well as at the University of Alaska Fairbanks with Ceramicrete formulations proposed by the Argonne National Laboratory. The tests conducted at BJ Services with proposed Ceramicrete formulations and Portland cement contamination have shown significant drawbacks which has caused these formulations to be rejected. However, the newly developed Ceramicrete formulation at the University of Alaska Fairbanks has shown positive results with Portland cement contamination as well as without Portland cement contamination for its effective use in oil well cementing operations at ANS.

Shirish Patil; Godwin A. Chukwu; Gang Chen; Santanu Khataniar

2008-12-31T23:59:59.000Z

494

Probing a Paleoclimate Model-Data Misfit in Arctic Alaska from the Cretaceous Greenhouse World  

E-Print Network [OSTI]

results of Ufnar et al. (2004b), but do not match those predicted by the Earth System modeling of Poulsen et al. (2007). These new data clearly emphasize the need for much more additional sampling in order to adequately characterize the hydrologic cycle...

Lollar, Joseph Chad

2011-08-31T23:59:59.000Z

495

Local and remote controls on observed Arctic warming J. A. Screen,1  

E-Print Network [OSTI]

radiative forcing (DRF) due to observed changes in greenhouse gases, ozone, aerosols, and solar output reanalysis data sets analysed by Serreze et al. [2009] and Screen and Simmonds [2010a] showed strongest AA

Deser, Clara

496

Source attributions of pollution to the Western Arctic during the NASA ARCTAS field campaign  

E-Print Network [OSTI]

ocean uptake of acetonitrile (CH 3 CN) in the atmospherie,and NBBB) with observed acetonitrile (CH 3 CN) (Fig. 4c andbiomass burning tracer of acetonitrile. Our tagged CO simu-

2013-01-01T23:59:59.000Z

497

Ten thousand and increasing: Is the western Arctic population of bowhead whale endangered?  

E-Print Network [OSTI]

the quantitative criteria for recovery and delisting using the approach proposed by [Gerber, L.R., DeMaster, D with a ``delisting'' decision increased. For the 10 and 11-census year subsets, data unequivocally support a decision to delist this pop- ulation for the 3 scenarios. Furthermore, the IUCN criteria for endangered

Gerber, Leah R.

498

Contribution of oceanic gas hydrate dissociation to the formation of Arctic Ocean methane plumes  

E-Print Network [OSTI]

Potential distribution of methane hydrate in the world'sisotopic evidence for methane hydrate instability duringHendy, L.L. , and R.J. Behl, Methane hydrates in quaternary

Reagan, M.

2012-01-01T23:59:59.000Z

499

Springtime Arctic haze contributions of submicron organic particles from European and Asian combustion sources  

E-Print Network [OSTI]

combustion sources Amanda A. Frossard,1 Patrick M. Shaw,1 Lynn M. Russell,1 Jesse H. Kroll,2,3 Manjula R factorization (PMF) and elemental tracer analysis indicate that mixed combustion sources account for more than. Correlations with typical combustion tracers (S, Zn, K, Br, V) provide evidence for the contribution

Russell, Lynn

500

Next-Generation Ecosystem Experiments-Arctic (NGEE) PRINCIPAL INVESTIGATOR: Stan D. Wullschleger  

E-Print Network [OSTI]

. Fundamental knowledge will reduce uncertainty and improve representation of processes in Earth System Models