Sample records for greenland grenada guadeloupe

  1. Geothermal Technologies Office: Download GETEM, August 2012 Beta

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

    Faeroe Islands Fiji Finland France French Guiana French Polynesia Gabon Gambia Georgia Germany Ghana Gibraltar Great Britain Greece Greenland Grenada Guadeloupe Guam Guatemala...

  2. Grenada-Caribbean Community (CARICOM) Sustainable Energy Roadmap...

    Open Energy Info (EERE)

    Grenada-Caribbean Community (CARICOM) Sustainable Energy Roadmap and Strategy Jump to: navigation, search Name Grenada-Caribbean Community (CARICOM) Sustainable Energy Roadmap and...

  3. Grenada: Energy Resources | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/ExplorationGoods | Open EnergyGreenrockGreenwoodGrenada: Energy

  4. Guadeloupe: Energy Resources | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEI ReferenceJumpEnergy InformationGrupo Urbas Jump to:Guadeloupe:

  5. The University of Mississippi-Grenada offers graduate degree programs geared to working adults, including

    E-Print Network [OSTI]

    Tchumper, Gregory S.

    and Instruction (MACI) is for students who currently hold a bachelor's degree in a field other than education-Grenada ITC Building Find us on Facebook! #12;UM/ School District Bank Hours The UM School of Education offers

  6. COMMUNITY PROFILE Greenland, New Hampshire

    E-Print Network [OSTI]

    New Hampshire, University of

    GREENLAND COMMUNITY PROFILE REPORT Greenland, New Hampshire February 3 & 4, 2006 #12;TABLE......................................................................................................................................3 Creating a Community Profile in Greenland

  7. Hydrogeological model of a high energy geothermal field (Bouillante area, Guadeloupe, French West Indies)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Hydrogeological model of a high energy geothermal field (Bouillante area, Guadeloupe, French West, France 3. BRGM, Department of Geothermal Energy 3, Av. Claude Guillemin - 45060 Orléans Cedex 2, France Abstract The Bouillante geothermal field presently provides about 8% of the annual electricity needs

  8. Lithium isotopes in island arc geothermal systems: Guadeloupe, Martinique (French West Indies) and experimental approach

    E-Print Network [OSTI]

    Boyer, Edmond

    Lithium isotopes in island arc geothermal systems: Guadeloupe, Martinique (French West Indies and the Diamant areas). The lithium isotopic signatures of the geothermal fluids collected from deep reservoirs during formation of Li- bearing secondary minerals by the uptake of lithium into the alteration minerals

  9. 1, 351383, 2007 Greenland surface

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    TCD 1, 351383, 2007 Greenland surface mass balance at the end of this century G. Krinner and N-resolution simulations of the surface mass balance of Greenland at the end of this century G. Krinner and N. Julien LGGE Correspondence to: G. Krinner (krinner@ujf-grenoble.fr) 351 #12;TCD 1, 351383, 2007 Greenland surface mass

  10. A new bed elevation dataset for Greenland

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    and bed data set for the Greenland ice sheet 1. Measure-bed elevation dataset for Greenland J. L. Bamber 1 , J. A.face mass balance of the Greenland ice sheet revealed by

  11. Greenland Ice Sheet Retreat Since the Little Ice Age

    E-Print Network [OSTI]

    Beitch, Marci Jillian

    2014-01-01T23:59:59.000Z

    and I. Willis (2012), Greenland's shrinking ice cover: "fastfluctuations in southeast Greenland, Nat. Geosci. , 5(6),T. Decker (2011), Analysis of Greenland marine- terminating

  12. A geocoding information system for Greenland

    E-Print Network [OSTI]

    A geocoding information system for Greenland Janis Siksnans Kongens Lyngby 2012 IMM-MSc-2012-48 #12-XXXX #12;Summary Currently, addressing practices in Greenland do not fully support geocoding. Addressing the current addressing practices in Greenland. Asiaq is a public organization of the Government of Greenland

  13. Greenland Meadows LID Case Study: Water Quality

    E-Print Network [OSTI]

    Greenland Meadows LID Case Study: Water Quality Greenland Meadows is a retail shopping center built in 2008 by Newton, Mass.- based New England Development in Greenland, N.H. The development is located Development and Community Decisions can be found at http://www.unh.edu/unhsc/ftl/ Greenland Meadows features

  14. FEBRUARY 2008|158 THE GREENLAND STIRRING

    E-Print Network [OSTI]

    FEBRUARY 2008|158 THE GREENLAND STIRRING ROD: PRESSURE DRAG AND THE ATLANTIC STORM TRACK Greenland of wintertime planetary waves episodically places Greenland in the path of the polar jet stream and associatedwest pressure drag exerted on Greenland's topography. Pressure drag is a key component of the zonal momentum

  15. Afro-Caribbean pemphigus : epidemiological data from a 5-year prospective study on the island of Guadeloupe (French West Indies)

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Afro-Caribbean pemphigus : epidemiological data from a 5-year prospective study on the island pemphigus in the Afro- Caribbean population. Objectives: To describe the epidemiology of autoimmune pemphigus on the island of Guadeloupe (French West Indies, 400736 inhabitants, mostly black Caribbean

  16. Note sur la crise sismo-volcanique fi la Soufri re de La Guadeloupe 1975-1977"

    E-Print Network [OSTI]

    Beauducel, François

    Note sur la crise sismo-volcanique fi la Soufri re de La Guadeloupe 1975-1977" J. DOREL M. FEUII sismo-volcanique dont l'ampleur ~talt nouvelle dans la region Cara~be. Les projections, qul sont rest

  17. Environmental Radioactivity in Greenland in 1981

    E-Print Network [OSTI]

    Ris-R-471 v Environmental Radioactivity in Greenland in 1981 A. Aarkrog, Henning Dahlgaard, Elis July 1962 #12;Ris-R-471 ENVIRONMENTAL RADIOACTIVITY IN GREENLAND IN 1981 A. Aarkrog, Henning Dahlgaard. Measurements of fallout radioactivity in Greenland in 1981 are reported. Strontium-90 (and Cesium-137 in most

  18. Environmental Radioactivity in Greenland in 1978

    E-Print Network [OSTI]

    ft I la 0 0 0 0 Risn-R-405 Environmental Radioactivity in Greenland in 1978 A. Aarkrog, Heinz ENVIRONMENTAL RADIOACTIVITY IN GREENLAND IN 1978 A. Aarkrog, Heinz Hansen and J. Lippert Abstract. Heasureaents of fallout radioactivity in Greenland in 1978 are reported. Strontium-90 (and Cesium-137 in most cases

  19. Advanced Review Greenland climate change: from

    E-Print Network [OSTI]

    Bhatt, Uma

    Advanced Review Greenland climate change: from the past to the future Valerie Masson-Delmotte,1 cores in and around Greenland allow us to place the current trends in regional climate, ice sheet lake sediments in southern Greenland document major environmental and climatic conditions during

  20. Greenland Meadows LID Case Study: Economics

    E-Print Network [OSTI]

    Greenland Meadows LID Case Study: Economics Utilizing an LID approach that featured porous asphalt and a gravel wetland, a cost-competitive drainage system was designed for a large retail development. Greenland in Greenland, N.H. The development is located on a 56-acre parcel and includes three, one-story retail

  1. The Melting of Greenland William H. Lipscomb

    E-Print Network [OSTI]

    Born, Andreas

    ). AnAn ice capice cap is a mass of glacier ice smaller than 50,000 kmis a mass of glacier ice smaller is negligibleSurface melting is negligible Antarctic ice thicknessAntarctic ice thickness (British Antarctic of the Greenland iceMuch of the Greenland ice sheet may have meltedsheet may have melted Greenland minimum extent

  2. Bowhead whale springtime song off West Greenland Kathleen M. Stafford

    E-Print Network [OSTI]

    Laidre, Kristin L.

    Bowhead whale springtime song off West Greenland Kathleen M. Stafford Applied Physics Laboratory 98105 and Greenland Institute of Natural Resources, Box 570, DK-3900 Nuuk, Greenland M. P. Heide-Jrgensen Greenland Institute of Natural Resources, Box 570, DK-3900 Nuuk, Greenland Received 13 February 2008

  3. Recent glacially influenced sedimentary processes on the East Greenland continental slope and deep Greenland Basin

    E-Print Network [OSTI]

    Jakobsson, Martin

    Recent glacially influenced sedimentary processes on the East Greenland continental slope and deep Greenland Basin Marga Garca a,*, Julian A. Dowdeswell a , Gemma Ercilla b , Martin Jakobsson c a Scott June 2012 Available online xxx Keywords: Greenland Basin Glacially influenced sedimentary processes

  4. Complex systems influence melting of Greenland ice sheet

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

    Complex systems influence melting of Greenland ice sheet Complex systems influence melting of Greenland ice sheet International research team's field work shows that, well, things...

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

    E-Print Network [OSTI]

    Czimczik, Claudia I; Welker, Jeffrey M

    2010-01-01T23:59:59.000Z

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

  6. Greenland temperature, climate change, and human society during the last 11,600 years

    E-Print Network [OSTI]

    Kobashi, Takuro

    2007-01-01T23:59:59.000Z

    temperatures directly from the Greenland Ice Sheet. Science2006. The 8.2ka event from Greenland ice cores. QuaternaryJouzel, Isotope calibrated Greenland temperature record over

  7. Persistent multi-decadal Greenland temperature fluctuation through the last millennium

    E-Print Network [OSTI]

    Kobashi, Takuro; Severinghaus, Jeffrey P.; Barnola, Jean-Marc; Kawamura, Kenji; Carter, Tara; Nakaegawa, Tosiyuki

    2010-01-01T23:59:59.000Z

    Cappelen J (2006) Extending Greenland temper- ature recordssurface elevation at the Greenland summit. J Glaciol 48:199hemisphere tempera- ture and Greenland temperature changed

  8. A metapopulation model for Canadian and West Greenland narwhals

    E-Print Network [OSTI]

    Laidre, Kristin L.

    A metapopulation model for Canadian and West Greenland narwhals M. P. Heide-Jrgensen1 , P. R. Richard2 , R. Dietz3 & K. L. Laidre4 1 Greenland Institute of Natural Resources, Nuuk, Greenland 2-Jrgensen, Greenland Institute of Natural Resources, Strandgade 91, 3, DK-1016 Copenhagen K, Denmark. Tel: +45 40257943

  9. INTRODUCTION Information on the abundance of large whales in Greenland

    E-Print Network [OSTI]

    Laidre, Kristin L.

    INTRODUCTION Information on the abundance of large whales in Greenland waters, including fin whales surveys were conducted in West Greenland by the Greenland Fisheries Research Institute (m/v Regina Maris when survey conditions are optimal in Greenlandic waters. Between 1983 and 1993, visual aerial surveys

  10. Greenland snow accumulation estimates from satellite radar scatterometer data

    E-Print Network [OSTI]

    Long, David G.

    Greenland snow accumulation estimates from satellite radar scatterometer data Mark R. Drinkwater accumulation on the Greenland ice sheet. Microwave radar backscatter images of Greenland are derived using (or decrease) in net snow accumulation on the polar ice caps. The net mass balance of the Greenland

  11. Greenland's Pressure Drag and the Atlantic Storm Track THOMAS JUNG

    E-Print Network [OSTI]

    Greenland's Pressure Drag and the Atlantic Storm Track THOMAS JUNG European Centre for Medium of Greenland on the Northern Hemisphere wintertime circulation are discussed. Inviscid pressure drag on Greenland's slopes, calculated from reanalysis data, is related to circulation patterns. Greenland lies

  12. Modeling convection in the Greenland Sea

    E-Print Network [OSTI]

    Bhushan, Vikas

    1998-01-01T23:59:59.000Z

    A detailed examination of the development of a deep convection event observed in the Greenland Sea in 1988-89 is carried out through a combination of modeling, scale estimates, and data analysis. We develop a prognostic ...

  13. Azimuth Variation in Microwave Backscatter over the Greenland Ice Sheet

    E-Print Network [OSTI]

    Long, David G.

    Azimuth Variation in Microwave Backscatter over the Greenland Ice Sheet Ivan S. Ashcraft and David backscatter measurements are becoming an important tool for monitoring the dynamic behavior of the Greenland ice sheet. However, most Greenland studies assume constant backscatter for varying azimuth angles

  14. Extending Greenland temperature records into the late eighteenth century

    E-Print Network [OSTI]

    Feigon, Brooke

    Extending Greenland temperature records into the late eighteenth century B. M. Vinther,1 K. K records for Greenland reach back to the late nineteenth century at a few sites. Combining early record back to the year 1784. The new extended Greenland temperature record is 9% incomplete. There are

  15. Greenland halibut (Reinhardtius hip-poglossoides (Walbaum)) is a deep-

    E-Print Network [OSTI]

    457 Greenland halibut (Reinhardtius hip- poglossoides (Walbaum)) is a deep- water flatfish of high perception of Greenland hali- but as a more free-swimming species than other flatfishes (Merrett and Haedrich. The perception that Greenland hal- ibut may be a pelagically distributed species has primarily been based

  16. Late Quaternary history of Washington Land, North Greenland OLE BENNIKE

    E-Print Network [OSTI]

    Inglfsson, lafur

    Late Quaternary history of Washington Land, North Greenland OLE BENNIKE Bennike, O. 2002 (September): Late Quaternary history of Washington Land, North Greenland. Boreas, Vol. 31, 260272. Oslo. ISSN 0300-9483. During the last glacial stage, Washington Land in western North Greenland was probably completely inun

  17. AbstractA total of 7244 Greenland halibut (Reinhardtius hippoglossoides,

    E-Print Network [OSTI]

    414 AbstractA total of 7244 Greenland halibut (Reinhardtius hippoglossoides, Walbaum) were tagged in Greenland waters between 1986 and 1998 to in crease information on stock delinea tions, to clarify migration routes, and to describe the seasonal movements of fjord populations. At present 517 recaptured Greenland

  18. EnvironmentThe MIT Press 2011 The Fate of Greenland

    E-Print Network [OSTI]

    Jackson, Daniel

    EnvironmentThe MIT Press 2011 #12;NEW The Fate of Greenland Lessons from Abrupt Climate Change above, Greenland offers an endless vista of whiteness interrupted only by scattered ponds of azure-colored melt water. Ninety percent of Greenland is covered by ice; its ice sheet, the largest outside

  19. Holocene sea-ice variations in Greenland: onshore evidence

    E-Print Network [OSTI]

    Inglfsson, lafur

    Holocene sea-ice variations in Greenland: onshore evidence Ole Bennike* (Geological Survey of Denmark and Greenland, ster Voldgade 10, DK-1350 Copenhagen K, Denmark) Received 12 August 2002; revised manuscript accepted 2 April 2003 Abstract: The oldest dated driftwood log from northern Greenland is c. 9300

  20. Epidemiology 69 Sander Greenland and Charles Poole1

    E-Print Network [OSTI]

    Gelman, Andrew

    Epidemiology 69 COMMENTARY Sander Greenland and Charles Poole1 accept that P values are here discussed, for example, by Greenland in 2011).2 The formal view of the P value as a probability conditional of the model). I find Greenland and Poole's1 perspective to be valuable: it is important to go beyond criticism

  1. THE CONTRIBUTION OF GREENLAND ICE SHEET MELTING TO

    E-Print Network [OSTI]

    THE CONTRIBUTION OF GREENLAND ICE SHEET MELTING TO GLOBAL SEA-LEVEL CHANGE Conor Mc three major sources, the Greenland ice sheet, Antarctica, and other eustatic components. Each has its own predictable spatial signal, and particular attention was paid to the Greenland ice sheet, given

  2. Greenland Observed at High Resolution by the Seasat Scatterometer

    E-Print Network [OSTI]

    Long, David G.

    Greenland Observed at High Resolution by the Seasat Scatterometer D.G. Long', P.J. Hardin2, and RA to SASS data for the study of Greenland's ice sheet. We present a time series of the radar backscatter images over Greenland covering the time period July-September 1978. The images provide an island

  3. Observations of hydroxyl and peroxy radicals and the impact of BrO at Summit, Greenland in 2007 and 2008

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    investigations at Summit, Greenland: An overview, J.upon ice particles in the Greenland snowpack, Geophys. Res.the snowpack at Summit, Greenland, Atmos. Environ. , 36,

  4. MODIS snow albedo bias at high solar zenith angles relative to theory and to in situ observations in Greenland

    E-Print Network [OSTI]

    Wang, Xianwei; Zender, Charles S

    2010-01-01T23:59:59.000Z

    glacial lakes across the Greenland Ice Sheet. Remote Sensing2000. Online article: Greenland climate network (GC- Net)characteristics on the Greenland Ice Sheet using MODIS and

  5. Geoid displacement about Greenland resulting from past and present-day mass changes in the Greenland Ice Sheet

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Geoid displacement about Greenland resulting from past and present- day mass changes in the Greenland Ice Sheet K. Fleming, Z. Martinec, and J. Hagedoorn Geodesy and Remote Sensing, Geo-isostatic adjustment (GIA) following the Last Glacial Maximum and from present- day mass changes in the Greenland Ice

  6. Greenland-Pearl Causal Diagrams 2 November 2009 1 of 16 CAUSAL DIAGRAMS

    E-Print Network [OSTI]

    California at Los Angeles, University of

    Greenland-Pearl Causal Diagrams 2 November 2009 1 of 16 CAUSAL DIAGRAMS Sander Greenland Department #12;Greenland-Pearl Causal Diagrams 2 November 2009 2 of 16 Introduction From their inception

  7. Longpath DOAS observations of surface BrO at Summit, Greenland

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    surface BrO at Summit, Greenland J. Stutz 1 , J. L. Thomasimpact of BrO at Summit, Greenland in 2007 and 2008, Atmos.of peroxy radicals at Summit, Greenland during summer 2003,

  8. MEDDELELSER OM GRNLAND BIOSCIENCE 53 2001 Hydroids of Greenland and Iceland

    E-Print Network [OSTI]

    Schuchert, Peter

    MEDDELELSER OM GRNLAND BIOSCIENCE 53 2001 Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa) PETER SCHUCHERT #12;PETER SCHUCHERT. Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa Meddelelser om Grnland Meddelelser om Grnland, which is Danish for Monographs on Greenland, has published

  9. Spread of ice mass loss into northwest Greenland observed by GRACE and GPS

    E-Print Network [OSTI]

    Khan, Shfaqat Abbas; Wahr, John; Bevis, Michael; Velicogna, Isabella; Kendrick, Eric

    2010-01-01T23:59:59.000Z

    oscillations and seasonal ice mass fluctuations, Eos Trans.2007), Rapid changes in ice discharge from Greenland outletW. et al. (2004), Greenland Ice Sheet: Increased coastal

  10. area east greenland: Topics by E-print Network

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

    schemes and link to the Gateshead Cycling 35 Constraining MODIS snow albedo at large solar zenith angles: Implications for surface energy budget in Greenland Geosciences...

  11. Determining Greenland Ice Sheet sensitivity to regional climate change: one-way coupling of a 3-D thermo-mechanical ice sheet model with a mesoscale climate model

    E-Print Network [OSTI]

    Schlegel, Nicole-Jeanne

    2011-01-01T23:59:59.000Z

    in running RCMs over Greenland to produce high-qualityoutlet glaciers. For Greenland, this detail is specificallyCurrently, no coupled Greenland Ice Sheet model experiment

  12. Greenland Ice Sheet Surface Air Temperature Variability: 18402007* JASON E. BOX

    E-Print Network [OSTI]

    Howat, Ian M.

    Greenland Ice Sheet Surface Air Temperature Variability: 18402007* JASON E. BOX Byrd Polar, seasonal, and annual mean Greenland ice sheet near- surface air temperatures. Independent observations Greenland in autumn and southern Greenland in winter. Spring trends marked the 1920s warming onset, while

  13. Abundance of narwhals (Monodon monoceros) on the hunting grounds in Greenland

    E-Print Network [OSTI]

    Laidre, Kristin L.

    Abundance of narwhals (Monodon monoceros) on the hunting grounds in Greenland M. P. HEIDE Greenland Institute of Natural Resources, Bok 570, 3900 Nuuk, Greenland (MPH, KLL, RGH) RUWPA, University to subsistence hunting by Inuit in Greenland and Canada. Scientific advice on the sustainable levels of removals

  14. Analysis of the Greenland ice sheet loss from remote sensing data*

    E-Print Network [OSTI]

    Analysis of the Greenland ice sheet loss from remote sensing data* Peter Limkilde Svendsen, Allan corresponding to the missing data removed. 2950 730.5 365.25 183 122 50 40 30 20 0 0.05 0.1 0.15 Greenland frequency content, amplitude spectrum Period [d] Amplitude[m] Greenland mean Greenland maximum Figure 1: EWH

  15. Changes in the Dynamics of Marine-Terminating Outlet Glaciers in West Greenland (2000-2009)

    E-Print Network [OSTI]

    Howat, Ian M.

    Changes in the Dynamics of Marine-Terminating Outlet Glaciers in West Greenland (2000-2009) 1 2 3 of Greenland's marine-terminating outlet glaciers indicate a rapid and complex response to external forcing Greenland's northwestern margin, it is unclear whether west Greenland glaciers have undergone

  16. Home Atmosphere Sea Ice Ocean Land Greenland Biology , L.-S. Bai

    E-Print Network [OSTI]

    Box, Jason E.

    Home Atmosphere Sea Ice Ocean Land Greenland Biology Greenland J. E. Box 1 , L.-S. Bai 1 , R across the southern half of Greenland led to substantially higher west coast sea ice thickness and concentration. Even so, record-setting summer temperatures around Greenland, combined with an intense melt

  17. greenland Field seminar The integrating experience of the IGErT traineeship is

    E-Print Network [OSTI]

    Lotko, William

    greenland Field seminar The integrating experience of the IGErT traineeship is the Greenland Field processes on the Greenland ice sheet at Summit Camp, and environmental policy and science communication in Nuuk, the capital of Greenland. The Dartmouth IGErT is administered by the Institute of arctic Studies

  18. SeaWinds views Greenland Ivan S. Ashcraft and David G. Long

    E-Print Network [OSTI]

    Long, David G.

    SeaWinds views Greenland Ivan S. Ashcraft and David G. Long Brigham Young University, MERS facies in Greenland. The duration of the summer melt over the Greenland ice sheet is calculated using backscatter images of Greenland are produced to investigate diurnal varia- tions in backscatter measurements

  19. Ocean Challenge, Vol.19, Autumn 2012 Early Online The shrinking Greenland ice Sheet

    E-Print Network [OSTI]

    Johnson, Helen

    Ocean Challenge, Vol.19, Autumn 2012 Early Online The shrinking Greenland ice Sheet The Greenland and south-east- ern Greenland. Higher ocean temperatures are thought to have played a role. However, the circulation within Greenland's fjords is not well known, and the interaction between glacial ice and the ocean

  20. Home Atmosphere Sea Ice Ocean Land Greenland Biology Greenland Ice Sheet Mass Balance

    E-Print Network [OSTI]

    Box, Jason E.

    , thinning and breakup of Jakobshavn Glacier's (SW Greenland) floating ice tongue and acceleration-to-year variability in GrIS mass turnover, e.g. sudden glacier accelerations (Rignot and Kanagartnam 2006). Since or 2005. Physical response mechanisms, such as hydraulic acceleration of the ice sheet from continued

  1. Greenland: Energy Resources | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEI ReferenceJump to: navigation,IISrlMassachusetts: EnergyGreenland:

  2. Greenland New Energy | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergyFarms A SUKHydrogen Company JumpGreenchoiceGreenland New

  3. A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice

    E-Print Network [OSTI]

    Chappellaz, Jrme

    A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice Core Project (GRIP) ice core Amaelle Landais,1 Je September 2003. [1] The disturbed stratigraphy of the ice in the lowest 10% of the Greenland GRIP ice core

  4. Feasibility of reconstructing paleoatmospheric records of selected alkanes, methyl halides, and sulfur gases from Greenland ice cores

    E-Print Network [OSTI]

    Aydin, M.; Williams, M. B; Saltzman, E. S

    2007-01-01T23:59:59.000Z

    firn and ice at Summit, Greenland, J. Geophys. Res. , 98,AL. : TRACE GASES IN GREENLAND ICE CORE . Andreae Kettle,and sulfur gases from Greenland ice cores M. Aydin, 1 M. B.

  5. Constraining MODIS snow albedo at large solar zenith angles: Implications for the surface energy budget in Greenland

    E-Print Network [OSTI]

    Wang, Xianwei; Zender, Charles S

    2010-01-01T23:59:59.000Z

    surface albedo of the Greenland ice sheet: satellite-derivedand J. Box. 2001. Surface climatology of the Greenland IceSheet: Greenland climate net- work 1995-1999. J. Geophys.

  6. 9 Place-names in north-west Greenland

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 9 Length of track 23 minutes Title of track Place-names in north-west Greenland Translation...

  7. 15 Dorti Peterson life in north-west Greenland

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 15 Length of track 40 minutes Title of track Dorti Peterson life in north-west Greenland...

  8. Coherent radar ice thickness measurements over the Greenland ice sheet

    E-Print Network [OSTI]

    Gogineni, S. Prasad; Tammana, Dilip; Braaten, David A.; Leuschen, C.; Legarsky, J.; Kanagaratnam, P.; Stiles, J.; Allen, C.; Jezek, K.; Akins, T.

    2001-12-27T23:59:59.000Z

    We developed two 150-MHz coherent radar depth sounders for ice thickness measurements over the Greenland ice sheet. We developed one of these using connectorized components and the other using radio frequency integrated circuits (RFICs). Both...

  9. Extensional evolution of the central East Greenland Caledonides

    E-Print Network [OSTI]

    White, Arthur Percy, 1972-

    2001-01-01T23:59:59.000Z

    This thesis addresses the complexity of both syn- and post-orogenic extension in the overriding plate during Caledonian continental collision through field and laboratory investigations in the central East Greenland ...

  10. Measuring Greenland Glacier Dynamics with Remotely Sensed Data

    E-Print Network [OSTI]

    Foga, Steve

    2013-01-15T23:59:59.000Z

    Measuring Greenland Glacier Dynamics with Remotely Sensed Data Steve Foga University of Kansas, Geography M.A. Student Photo by: Phil Pasquini The importance of studying glacier ice Study area Difference in ice velocity of Helheim Glacier...

  11. Hydrological and biogeochemical cycling along the Greenland ice sheet margin

    E-Print Network [OSTI]

    Bhatia, Maya Pilar, 1979-

    2012-01-01T23:59:59.000Z

    Global warming has led to a significant increase in Greenland ice sheet (GrIS) melt and runoff since 1990, resulting in escalated export of fresh water and associated sediment to the surrounding North Atlantic and Arctic ...

  12. The East Greenland Coastal Current : its structure, variability, and large-scale impact

    E-Print Network [OSTI]

    Sutherland, David A. (David Alan)

    2008-01-01T23:59:59.000Z

    The subtidal circulation of the southeast Greenland shelf is described using a set of high resolution hydrographic and velocity transects occupied in summer 2004. The main feature present is the East Greenland Coastal ...

  13. WindSat Polarimetric View of Greenland Peter Gaiser and 1

    E-Print Network [OSTI]

    Long, David G.

    WindSat Polarimetric View of Greenland 1 Li Li, 1 Peter Gaiser and 1 Elizabeth Twarog 1 Remote and observation geometry signatures, particularly over Greenland and Antarctic where the signatures are related-polarimetric microwavr radiometry; WindSat; snow; Greenland I. INTRODUCTION WindSat, launched in January 2003

  14. A 600-year annual 10 Be record from the NGRIP ice core, Greenland

    E-Print Network [OSTI]

    Wehrli, Bernhard

    A 600-year annual 10 Be record from the NGRIP ice core, Greenland A.-M. Berggren,1 J. Beer,2 G only one record (Dye-3, Greenland) providing annual resolution over several centuries. Here we report the NGRIP site in Greenland. NGRIP and Dye-3 10 Be exhibits similar long-term variability, although

  15. A numerical ocean circulation model of the Norwegian and Greenland Seas

    E-Print Network [OSTI]

    Stevens, David

    A numerical ocean circulation model of the Norwegian and Greenland Seas DAVID P STEVENS School of the Norwegian and Greenland Seas are investigated using a three-dimensional primitive equation ocean circulation and seasonally varying wind and thermohalme forcing. The connections of the Norwegian and Greenland Seas

  16. A new look at Southeast Greenland barrier winds and katabatic flow G.W.K. Moore

    E-Print Network [OSTI]

    Howat, Ian M.

    1 A new look at Southeast Greenland barrier winds and katabatic flow G.W.K. Moore Department; 2 Abstract: Southern Greenland is characterized by a number of high speed low-level weather systems that are all the result of the interaction of the topography of the Greenland with passing extra

  17. 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

  18. Model simulation of Greenland Sea upper-ocean variability S. Hakkinen,1

    E-Print Network [OSTI]

    Zhang, Jinlun

    Model simulation of Greenland Sea upper-ocean variability S. Hakkinen,1 F. Dupont,2 M. Karcher,3-ocean water masses coincides with periods of intense deep-water formation in the Greenland Sea. This paper-ocean properties observed in the Greenland Sea, including very dense, saline water masses in the 1950s, 1960s

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

    E-Print Network [OSTI]

    Rohling, Eelco

    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

  20. Elastic uplift in southeast Greenland due to rapid ice mass loss Shfaqat A. Khan,1

    E-Print Network [OSTI]

    Larson, Kristine

    Elastic uplift in southeast Greenland due to rapid ice mass loss Shfaqat A. Khan,1 John Wahr,2] The rapid unloading of ice from the southeastern sector of the Greenland ice sheet between 2001 and 2006), Elastic uplift in southeast Greenland due to rapid ice mass loss, Geophys. Res. Lett., 34, L21701, doi:10

  1. SPATIAL FACTOR ANALYSIS OF STREAM SEDIMENT GEOCHEMISTRY DATA FROM SOUTH GREENLAND

    E-Print Network [OSTI]

    SPATIAL FACTOR ANALYSIS OF STREAM SEDIMENT GEOCHEMISTRY DATA FROM SOUTH GREENLAND Allan A. Nielsen1 and Greenland, Thoravej 8, DK-2400 Kbenhavn NV, Denmark. ast@geus.dk SUMMARY This paper describes from South Greenland. Kriged MAF images are compared with kriged images based on varimax rotated

  2. Atmospheric circulation and cyclone frequency variations linked to the primary modes of Greenland snow accumulation

    E-Print Network [OSTI]

    Howat, Ian M.

    Atmospheric circulation and cyclone frequency variations linked to the primary modes of Greenland from 34 Greenland firn cores, extending from 1982 to 1996, are used to identify spatial accumulation component, representing west-central Greenland accumulation, is correlated to NAO variability, having

  3. Acceleration of the Greenland ice sheet mass loss as observed by GRACE: Confidence and sensitivity

    E-Print Network [OSTI]

    Acceleration of the Greenland ice sheet mass loss as observed by GRACE: Confidence and sensitivity: Greenland mass loss acceleration confidence intervals GRACE a b s t r a c t We examine the scale and spatial distribution of the mass change acceleration in Greenland and its statistical significance, using processed

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

    E-Print Network [OSTI]

    Joyce, Terrence M.

    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

  5. Relating Microwave Backscatter Azimuth Modulation to Surface Properties of the Greenland Ice Sheet

    E-Print Network [OSTI]

    Long, David G.

    Relating Microwave Backscatter Azimuth Modulation to Surface Properties of the Greenland Ice Sheet modulation of the normalized radar cross- section in satellite data sets over Greenland is investigated. Data sastrugi are estimated. I. INTRODUCTION The Greenland ice sheet is a critical area of study in esti- mating

  6. GREENLAND INLAND ICE MELT-OFF: ANALYSIS OF GLOBAL GRAVITY DATA FROM THE GRACE SATELLITES

    E-Print Network [OSTI]

    GREENLAND INLAND ICE MELT-OFF: ANALYSIS OF GLOBAL GRAVITY DATA FROM THE GRACE SATELLITES Allan A) in meters starting at 29 July 2002 and ending at 25 August 2010. Results focussing on Greenland show indications of a transition taking place in the mass loss in Greenland from mid-2004 to early 2006. Index

  7. Field Metabolic Rate and PCB Adipose Tissue Deposition Efficiency in East Greenland Polar Bears Derived from

    E-Print Network [OSTI]

    Schierup, Mikkel Heide

    Field Metabolic Rate and PCB Adipose Tissue Deposition Efficiency in East Greenland Polar Bears metabolic rates (FMR) and CB153 deposition efficiencies in East Greenland polar bears. Our simulations Greenland polar bears. Citation: Pavlova V, Nabe-Nielsen J, Dietz R, Svenning J-C, Vorkamp K, et al. (2014

  8. Spatial variation in the influence of the North Atlantic Oscillation on precipitation across Greenland

    E-Print Network [OSTI]

    Howat, Ian M.

    Greenland Catherine A. Calder,1 Peter F. Craigmile,1 and Ellen Mosley-Thompson2,3 Received 27 July 2007-derived accumulation records from Greenland have been proposed as proxies for North Atlantic Oscillation (NAO Greenland were found to exhibit the strongest linear association with NAO. In this paper, we expand

  9. Chironomids as indicators of the Holocene climatic and environmental history of two lakes in Northeast Greenland

    E-Print Network [OSTI]

    Bern, Universitt

    in Northeast Greenland STEFFI SCHMIDT, BERND WAGNER, OLIVER HEIRI, MARTIN KLUG, OLE BENNIKE AND MARTIN MELLES as indicators of the Holocene climatic and environmental history of two lakes in Northeast Greenland. Boreas sequences from arctic lakes on Store Koldewey, an island in Northeast Greenland, were investigated

  10. Mapping Greenland's mass loss in space and time Christopher Harig1

    E-Print Network [OSTI]

    Simons, Frederik J.

    Mapping Greenland's mass loss in space and time Christopher Harig1 and Frederik J. Simons lost from the Greenland ice cap, based on satellite gravity data collected by the Gravity Recovery distribution of Greenland's mass loss and how the geographical pattern has varied on relatively shorter time

  11. Earliest Holocene south Greenland ice sheet retreat within its late Holocene extent

    E-Print Network [OSTI]

    Earliest Holocene south Greenland ice sheet retreat within its late Holocene extent Anders E, British Columbia, Canada Abstract Early Holocene summer warmth drove dramatic Greenland ice sheet (GIS Greenland, significantly earlier than previous estimates, and 6.8 0.1 ka to 7.9 0.1 ka in southwest

  12. Levoglucosan as a specific marker of fire events in Greenland snow

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Levoglucosan as a specific marker of fire events in Greenland snow By NATALIE KEHRWALD1 *, ROBERTA collected from a 3 m snow pit at Summit, Greenland (72820?N, 38845?W; 3270 m a.s.l.), with a known, through their eastward transport and deposition on the Greenland ice sheet, and their eventual burial

  13. Abstract Southwest Greenland provides wintering grounds for 70% (~460,000) of the northern common

    E-Print Network [OSTI]

    Abstract Southwest Greenland provides wintering grounds for 70% (~460,000) of the northern common in the eastern Canadian Arctic and western Greenland (Abraham and Finney 1986; Boertmann et al. 1996; Merkel 2004a). All birds from western Greenland and most Canadian breeders, about 70% (463

  14. Upper-air temperatures around Greenland: 19642005 Jason E. Box1,2

    E-Print Network [OSTI]

    Howat, Ian M.

    Upper-air temperatures around Greenland: 19642005 Jason E. Box1,2 and Ariel E. Cohen2 Received 15 of 12h balloon soundings from six sites surrounding Greenland reveal distinct patterns of tropospheric-air temperatures around Greenland: 1964 2005, Geophys. Res. Lett., 33, L12706, doi:10.1029/ 2006GL025723. 1

  15. GEOLOGY, July 2008 539 The origin of the vertical motions of East Greenland is a long-

    E-Print Network [OSTI]

    Podladchikov, Yuri

    GEOLOGY, July 2008 539 ABSTRACT The origin of the vertical motions of East Greenland is a long uplift in central East Greenland. Because the North Atlantic is rimmed by young glacially carved mountain, Greenland, numerical modeling. INTRODUCTION The coastal landscapes of the fjords of the North Atlantic Ocean

  16. Fully corrected estimates of common minke whale abundance in West Greenland in 2007

    E-Print Network [OSTI]

    Laidre, Kristin L.

    Fully corrected estimates of common minke whale abundance in West Greenland in 2007 M.P. HEIDE West Greenland in August and September 2007. A total of 8,670km of survey effort covered 11 strata SURVEY; SATELLITE TAGGING; WEST GREENLAND minke whales to fully corrected total estimates of abundance

  17. Impact of Greenland and Antarctic ice sheet interactions on climate sensitivity

    E-Print Network [OSTI]

    Goelzer, Heiko

    Impact of Greenland and Antarctic ice sheet interactions on climate sensitivity H. Goelzer P versions including interactive Greenland and Ant- arctic ice sheet models and model versions with fixed ice a few global climate models exist that include dynami- cally coupled models for the Greenland (e

  18. Multi-Annual Changes in Microwave Backscatter over the Greenland Ice Sheet

    E-Print Network [OSTI]

    Long, David G.

    Multi-Annual Changes in Microwave Backscatter over the Greenland Ice Sheet Ivan S. Ashcraft in the location of key ice facies/zones on the Greenland ice sheet are considered key indicators of global climate the SIR al- gorithm to produce u" images, the meiisurements made by these sensors over Greenland

  19. Upper ocean T-S variations in the Greenland Sea and their association to climatic conditions

    E-Print Network [OSTI]

    Upper ocean T-S variations in the Greenland Sea and their association to climatic conditions Sirpa that the salinity variability in the central Greenland Gyre follows closely the sea level pressure (SLP) fluctuations found along the Greenland Coast, e.g., at Angmagssalik. Corresponding large-scale SLP field

  20. FOOD HABITS AND DAILY RATION OF GREENLAND HALIBUT, REINHARDTIUS HIPPOGLOSSOIDES, IN

    E-Print Network [OSTI]

    FOOD HABITS AND DAILY RATION OF GREENLAND HALIBUT, REINHARDTIUS HIPPOGLOSSOIDES, IN THE EASTERN BERING SEA M. S. YANG AND P. A. LIVINGSTON1 ABSTRACT This study shows that diet of Greenland halibut varies mainly by depth and size, and that size of prey fish increases as the Greenland halibut increases

  1. Ice-front variation and tidewater behavior on Helheim and Kangerdlugssuaq Glaciers, Greenland

    E-Print Network [OSTI]

    Tsai, Victor C.

    Ice-front variation and tidewater behavior on Helheim and Kangerdlugssuaq Glaciers, Greenland Ian Glaciers, Greenland, from 2001 to 2006, a period in which they retreated and sped up. These data show and retreat in less than a century indicates that tidewater glaciers in Greenland can advance rapidly

  2. Radar Measurements of Ice Sheet Thickness of Outlet Glaciers in Greenland D. Braaten+

    E-Print Network [OSTI]

    Kansas, University of

    Radar Measurements of Ice Sheet Thickness of Outlet Glaciers in Greenland D. Braaten+ and S of Kansas Lawrence, KS 66045 U.S.A. Abstract We have conducted airborne measurements over the Greenland the mass balance of the Greenland ice sheet, the University of Kansas has been operating an airborne radio

  3. Neogene overflow of Northern Component Water at the Greenland-Scotland Ridge

    E-Print Network [OSTI]

    Samworth, Richard

    Neogene overflow of Northern Component Water at the Greenland-Scotland Ridge H. R. Poore Department counterpart Northern Component Water (NCW), across the Greenland-Scotland Ridge (GSR) is thought to have,280 words, 12 figures, 3 tables. Keywords: Northern Component Water; Greenland-Scotland Ridge; Iceland

  4. Response of a marineterminating Greenland outlet glacier to abrupt cooling 8200 and 9300 years ago

    E-Print Network [OSTI]

    Briner, Jason P.

    Response of a marineterminating Greenland outlet glacier to abrupt cooling 8200 and 9300 years ago 16 December 2011. [1] Longterm records of Greenland outletglacier change extending beyond the satellite era can inform future predictions of Greenland Ice Sheet behavior. Of particular relevance

  5. Deep convection in the Irminger Sea forced by the Greenland tip jet

    E-Print Network [OSTI]

    Pickart, Robert S.

    Deep convection in the Irminger Sea forced by the Greenland tip jet Robert S. Pickart*, Michael A atmospheric jet known as the Greenland tip jet, which forms periodically in the lee of Cape Farewell, Greenland, and is associated with elevated heat flux and strong wind stress curl. Using a history of tip

  6. Improving the precision of otolith-based age estimates for Greenland halibut

    E-Print Network [OSTI]

    643 Improving the precision of otolith-based age estimates for Greenland halibut (Reinhardtius estimates for Greenland halibut (Reinhardtius hip- poglossoides) have low precision, and there is general and Lyons, 1991). The latter is the primary cause of low pre- cision with Greenland halibut

  7. Update of Greenland Ice Sheet Mass Loss: Exponential? 26 December 2012

    E-Print Network [OSTI]

    Hansen, James E.

    1 Update of Greenland Ice Sheet Mass Loss: Exponential? 26 December 2012 James Hansen and Makiko Sato Shepherd et al. (2012) provide an update of the mass loss by the Greenland ice sheet (and at the data seems warranted. A crucial question is how rapidly the Greenland (or Antarctic) ice sheet can

  8. NORTHEASTERN NATURALIST2006 13(1):3538 Sea Lamprey Attached to a Greenland Shark in the

    E-Print Network [OSTI]

    Myers, Ransom A.

    NORTHEASTERN NATURALIST2006 13(1):3538 Sea Lamprey Attached to a Greenland Shark in the St fork length, male Somniosus microcephalus (Greenland shark) on 9 October 2004 in Baie St. Pancrace, St observation of a sea lamprey attached to a Somniosus microcephalus (Bloch and Schneider) (Greenland shark

  9. A Greenland Sea Perspective on the Dynamics of Postconvective Eddies* K. I. C. OLIVER

    E-Print Network [OSTI]

    Stevens, David

    A Greenland Sea Perspective on the Dynamics of Postconvective Eddies* K. I. C. OLIVER School and 2) to provide a theoretical context for recent observations of SCVs in the Greenland Sea hundred days. These findings may explain the observed accumulation and longevity of SCVs at the Greenland

  10. white paper, 9 March 2009 An ice core to reconstruct Greenland ice sheet mass balance

    E-Print Network [OSTI]

    Box, Jason E.

    white paper, 9 March 2009 1 An ice core to reconstruct Greenland a handful of years suggest a profound Greenland ice sheet mass balance sensitivity (2000) found that the Greenland ice sheet lost as much as 2/3 its current

  11. A New Coherent Radar for Ice Sounding in Greenland A. Moussessian

    E-Print Network [OSTI]

    Kansas, University of

    A New Coherent Radar for Ice Sounding in Greenland A. Moussessian 1 , R.L. Jordan 1 , E. Rodriguez of this radar on board a P-3 aircraft took place in May of 1999 over Greenland with successful results blanking. The first deployment of this radar took place in May of 1999 in Greenland. During this deployment

  12. Radar Sounding of Glaciers in Greenland C. Allen, B, Wohletz, and S, Gogineni

    E-Print Network [OSTI]

    Kansas, University of

    Radar Sounding of Glaciers in Greenland C. Allen, B, Wohletz, and S, Gogineni The University on several flights over Greenland glaciers during the summer of 1995. The radar data were collected the theory and present results of the homomorphic deconvolution procedure. INTRODUCTION The Greenland

  13. A spatially calibrated model of annual accumulation rate on the Greenland Ice Sheet (19582007)

    E-Print Network [OSTI]

    Howat, Ian M.

    on the Greenland Ice Sheet (19582007) Evan W. Burgess,1 Richard R. Forster,1 Jason E. Box,2,3 Ellen Mosley 10 September 2009; accepted 21 October 2009; published 10 April 2010. [1] Past estimates of Greenland patterns, which are modeled via spatial interpolation of root mean squared errors. Mean 19582007 Greenland

  14. The deglaciation and neoglaciation of Upernavik Isstrm, Greenland Jason P. Briner a,

    E-Print Network [OSTI]

    Briner, Jason P.

    The deglaciation and neoglaciation of Upernavik Isstrm, Greenland Jason P. Briner a, , Lena Geological Survey of Denmark and Greenland, ster Voldgade 10, 1350 Copenhagen-K, Denmark c Department 2013 Available online 21 October 2013 Keywords: Greenland Ice Sheet Upernavik Isstrm Holocene

  15. Natural mortality rate, annual fecundity, and maturity at length for Greenland halibut

    E-Print Network [OSTI]

    296 Natural mortality rate, annual fecundity, and maturity at length for Greenland halibut% ma- turity, and the rate of instantaneous natural mortality (M) by using GSI for Greenland halibut Greenland halibut (Reinhardtius hip- poglossoides) life history traits and to correctly assess the status

  16. High variability of Greenland surface temperature over the past 4000 years estimated from trapped air

    E-Print Network [OSTI]

    Severinghaus, Jeffrey P.

    High variability of Greenland surface temperature over the past 4000 years estimated from trapped 10 October 2011; accepted 11 October 2011; published 10 November 2011. [1] Greenland recently is impacting the Greenland ice sheet and in turn accelerating global sealevel rise. Yet, it remains imprecisely

  17. Increasing Temporal Resolution in Greenland Ablation Estimation Using Passive and Active Microwave Data

    E-Print Network [OSTI]

    Long, David G.

    Increasing Temporal Resolution in Greenland Ablation Estimation Using Passive and Active Microwave of these measurements provides an increased understanding of the diurnal melt cycle over Greenland and estimation of the melt profile. I. INTRODUCTION Accurate estimation of the mass balance of the Greenland ice sheet

  18. Concentrations and Snow-Atmosphere Fluxes of Reactive Nitrogen at Summit, Greenland

    E-Print Network [OSTI]

    1 Concentrations and Snow-Atmosphere Fluxes of Reactive Nitrogen at Summit, Greenland J. W. Munger AT SUMMIT, GREENLAND 2 Abstract. Concentrations and fluxes of NOy (total reactive nitrogen), ozone concentra at Summit, Greenland. Median NOy concentrations declined from 947 ppt in May to 444 ppt by July. NOy fluxes

  19. The East Greenland Spill Jet* ROBERT S. PICKART, DANIEL J. TORRES, AND PAULA S. FRATANTONI

    E-Print Network [OSTI]

    Pickart, Robert S.

    The East Greenland Spill Jet* ROBERT S. PICKART, DANIEL J. TORRES, AND PAULA S. FRATANTONI Woods Greenland shelf break south of Denmark Strait have revealed an intense, narrow current banked against and entraining ambient water. The current has been named the East Greenland Spill Jet. It resides beneath

  20. Climate-driven interannual ice mass evolution in Greenland I. Bergmanna

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Climate-driven interannual ice mass evolution in Greenland I. Bergmanna , G. Ramillienb , FUniversite de Toulouse, UPS, OMP, GET, Toulouse, France Abstract We re-evaluate the Greenland mass balance of the Greenland Ice Sheet (GrIS), especially the recent deceleration of ice loss in 2009-2010, once seasonal

  1. Remote sensing of Greenland ice sheet using multispectral near-infrared and visible radiances

    E-Print Network [OSTI]

    Dozier, Jeff

    Remote sensing of Greenland ice sheet using multispectral near-infrared and visible radiances Petr microwave methods. The method should be useful for long-term monitoring of the melt area of the Greenland of MODIS retrievals of the western portion of the Greenland ice sheet over the period 2000 to 2006

  2. AGE, GROWTH, AND SEXUAL MATURITY OF GREENLAND HALIBUT, REINHARDT/US lHPPOGLOSSOIDES (WALBAUM),

    E-Print Network [OSTI]

    AGE, GROWTH, AND SEXUAL MATURITY OF GREENLAND HALIBUT, REINHARDT/US lHPPOGLOSSOIDES (WALBAUM), IN THE CANADIAN NORTHWEST ATLANTIC W. R. BOWERIN01 ABSTRACT Age composition of Greenland halibut, Reinhardtius the slowest throughout the range. Onsetofmaturityoffemale Greenland halibutfrom the Gulfof

  3. North and northeast Greenland ice discharge from satellite radar interferometry

    SciTech Connect (OSTI)

    Rignot, E.J. [California Institute of Technology, Pasadena, CA (United States)] [California Institute of Technology, Pasadena, CA (United States); Gogineni, S.P. [Univ. of Kansas, Lawrence, KS (United States)] [Univ. of Kansas, Lawrence, KS (United States); Krabill, W.B. [NASA Goddard Space Flight Center, Wallops Island, VA (United States)] [and others] [NASA Goddard Space Flight Center, Wallops Island, VA (United States); and others

    1997-05-09T23:59:59.000Z

    Ice discharge from north and northeast Greenland calculated from satellite radar interferometry data of 14 outlet glaciers is 3.5 times that estimated from iceberg production. The satellite estimates, obtained at the grounding line of the outlet glaciers, differ from those obtained at the glacier front, because basal melting is extensive at the underside of the floating glacier sections. The results suggest that the north and northeast parts of the Greenland ice sheet may be thinning and contributing positively to sea-level rise. 24 refs., 3 figs., 1 tab.

  4. Cambrian Agnostida of North America and Greenland, Part I, Ptychagnostidae

    E-Print Network [OSTI]

    Robison, Richard A.

    1984-06-08T23:59:59.000Z

    THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS June 8, 1984 Paper 109 CAMBRIAN AGNOSTIDA OF NORTH AMERICA AND GREENLAND PART I, PTYCHAGNOSTIDAE' R. A. ROBISON Department of Geology, University of Kansas Lawrence, Kansas 66045 Abstract... D Z 38-n 2 The University of Kansas Paleontological ContributionsPaper 109 ABUNDANCE, WIDE geographic distribution, and rapid evolution make agnostoid trilobites some of the best indices for global correlation of Cambrian strata. The value...

  5. Changes in Sea-Level associated with Modi cations of the Mass Balance of the Greenland and Antarctic

    E-Print Network [OSTI]

    Changes in Sea-Level associated with Modi cations of the Mass Balance of the Greenland and Antarctic Ice Sheets over the 21st Century V eronique Bugnion Abstract Changes in runo from Greenland for estimating melting and runo . All models are solved on 20 and 40 km grids respectively for Greenland

  6. A TEX86 lake record suggests simultaneous shifts in temperature in Central Europe and Greenland during the last deglaciation

    E-Print Network [OSTI]

    Wehrli, Bernhard

    A TEX86 lake record suggests simultaneous shifts in temperature in Central Europe and Greenland years. The remarkable resemblance with the Greenland and regional stable oxygen isotope records suggests and Greenland during the last deglaciation, Geophys. Res. Lett., 40, 948953, doi:10.1002/grl.50181. 1

  7. Sources and fate of freshwater exported in the East Greenland Current Paul A. Dodd,1,2

    E-Print Network [OSTI]

    Naveira Garabato, Alberto

    Sources and fate of freshwater exported in the East Greenland Current Paul A. Dodd,1,2 Karen J] Monitoring the sources and fate of freshwater in the East Greenland Current (EGC) is important, as this water, with a significant proportion of sea ice drifting into the Nordic Seas or on to the East Greenland Shelf. We conclude

  8. Response of the Greenland and Antarctic Ice Sheets to Multi-Millennial Greenhouse Warming in the Earth

    E-Print Network [OSTI]

    Goelzer, Heiko

    Response of the Greenland and Antarctic Ice Sheets to Multi-Millennial Greenhouse Warming of the Greenland and Antarctic ice sheets to sustained multi-millennial greenhouse warming. Use was made of fully polar regions. This leads to an almost complete disintegration of the Greenland ice sheet after 3

  9. A case study of a Greenland lee cyclogenesis event and the subsequent spawning of a tip jet

    E-Print Network [OSTI]

    Pickart, Robert S.

    A case study of a Greenland lee cyclogenesis event and the subsequent spawning of a tip jet Carling: With elevations exceeding 2000m in height, Greenland's southern tip acts as a large barrier to storm systems traversing the North Atlantic. As a result of the interaction with Greenland, low-pressure systems located

  10. P. Schuchert 2001a. Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om Grnland 53: 1-184.

    E-Print Network [OSTI]

    Schuchert, Peter

    P. Schuchert 2001a. Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om Grnland Kramp (1949) page 42: the existence of the Greenlandic species Zyzzyzus robustus Petersen, 1990 was only noted after the typesetting of the manuscript. page 46: section Distribution: "esatern Greenland" should

  11. Feasibility of reconstructing paleoatmospheric records of selected alkanes, methyl halides, and sulfur gases from Greenland ice cores

    E-Print Network [OSTI]

    Saltzman, Eric

    , and sulfur gases from Greenland ice cores M. Aydin,1 M. B. Williams,1 and E. S. Saltzman1 Received 7-lived atmospheric trace gases were measured in 25 ice core samples from Summit, Greenland. Samples were selected. The CH3Br results are consistent with previous observations of ``excess'' CH3Br in Greenland firn air

  12. Did changes in the Subpolar North Atlantic trigger the recent mass loss from the Greenland Ice Sheet?

    E-Print Network [OSTI]

    Straneo, Fiamma

    Did changes in the Subpolar North Atlantic trigger the recent mass loss from the Greenland Ice) Leigh A. Stearns (University of Kansas) The Greenland Ice Sheet's (GIS) contribution to sea level rise and nearly-simultaneous acceleration of several outlet glaciers in Greenland's western and southeastern

  13. Climatological conditions for the subpolar North Atlantic during the field campaign of the Greenland Flow Distortion Experiment

    E-Print Network [OSTI]

    Pickart, Robert S.

    of the Greenland Flow Distortion Experiment G.W.K. Moore Department of Physics University of Toronto R.S. Pickart January 21, 2009 #12; 2 Abstract: Due to its high topography, Greenland results in significant to help document this flow distortion as part of the international research project called the Greenland

  14. Appendix S1 -A greener Greenland? Normand et al. Appendix S1: Study species and species occurrence data

    E-Print Network [OSTI]

    Zimmermann, Niklaus E.

    Appendix S1 - A greener Greenland? Normand et al. 1 Appendix S1: Study species and species as in one or several of the floristic provinces bordering Greenland (Fig. S1.1). The selection were based subspecies) was considered. The selected species were assigned maximum heights and Greenlandic species

  15. Constraining MODIS snow albedo at large solar zenith angles: Implications for surface energy budget in Greenland

    E-Print Network [OSTI]

    Zender, Charles

    Constraining MODIS snow albedo at large solar zenith angles: Implications for surface energy budget; Solar Zenith Angle; Greenland; Surface Energy Budget 2 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 plays a pivotal role in determining the surface energy balance of Greenland which, by virtue of its area

  16. Net accumulation of the Greenland ice sheet: High resolution modeling of climate changes

    E-Print Network [OSTI]

    Born, Andreas

    : Kiilsholm, S., J. H. Christensen, K. Dethloff, and A. Rinke, Net accumulation of the Greenland ice sheetNet accumulation of the Greenland ice sheet: High resolution modeling of climate changes Sissi, Denmark Klaus Dethloff and Annette Rinke Alfred Wegener Institute for Polar and Marine Research

  17. Contrasting response of South Greenland glaciers to recent climatic change

    SciTech Connect (OSTI)

    Warren, C.R.; Glasser, N.F. (Univ. of Edinburgh, Scotland (United Kingdom))

    1992-05-01T23:59:59.000Z

    A unique geographical configuration of glaciers exists in the Narsarsuaq district of South Greenland. Two large outlet glaciers divide into seven distributaries, such that each glacier system has land-terminating, tidewater-calving, and fresh-water-calving termini. Despite a similar climatic regime, these seven glaciers have exhibited strongly contrasting terminal behavior in historical time, as shown by historical records, aerial photographs, and fieldwork in 1989. The behavior of the calving glaciers cannot be accounted for with reference solely to climatic parameters. The combination of iceberg calving dynamics and topographic control has partially decoupled them from climatic forcing such that their oscillations relate more closely to glaciodynamic than glacioclimatic factors.

  18. Greenland, New Hampshire: Energy Resources | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG ContractingGreenOrder JumpIowa: Energy ResourcesInitiativeGreenland,

  19. Focused synthetic aperture radar processing of ice-sounder data collected over the Greenland ice sheet

    E-Print Network [OSTI]

    Legarsky, J.; Gogineni, Sivaprasad; Akins, T. L.

    2001-10-01T23:59:59.000Z

    We developed a synthetic aperture radar (SAR) processing algorithm for airborne/spaceborne ice-sounding radar systems and applied it to data collected in Greenland. By using focused SAR (phase-corrected coherent averaging), we improved along...

  20. Sudden increase in tidal response linked to calving and acceleration at a large Greenland outlet glacier

    E-Print Network [OSTI]

    de Juan, J.; Elosegui, P.; Nettles, M.; Larsen, T.B.; Davis, J.L.; Hamilton, Gordon S.; Stearns, Leigh; Anderson, M.L.; Ekstrom, G.; Ahlstrom, A.P.; Stenseng, L.; Khan, S.A.; Forsberg, R.

    2010-06-23T23:59:59.000Z

    [1] Large calving events at Greenland's largest outlet glaciers are associated with glacial earthquakes and near-instantaneous increases in glacier flow speed. At some glaciers and ice streams, flow is also modulated in a regular way by ocean tidal...

  1. Synoptic Scale Weather Patterns Associated with Annual Snow Accumulation Variability in North-Central Greenland

    E-Print Network [OSTI]

    CHEN, SHU

    2013-08-31T23:59:59.000Z

    Abstract Previous studies on the synoptic forcing of high elevation areas of central Greenland have mostly relied on ice cores, snow pits, mesoscale models, and climate models. In this study, a radar-measured 118-year annual snow accumulation record...

  2. Satellite investigations of ice dynamics and supraglacial lake development in Greenland

    E-Print Network [OSTI]

    Briggs, Kate Hannah

    2012-06-25T23:59:59.000Z

    This thesis aims to improve the current understanding of the processes which control the flow variability of Greenland Ice Sheet (GrIS) outlet glaciers. The most recent Intergovernmental Governmental Panel on Climate ...

  3. Hydrology and dynamics of a land-terminating Greenland outlet glacier

    E-Print Network [OSTI]

    Bartholomew, Ian David

    2012-11-29T23:59:59.000Z

    The purpose of this thesis is to investigate the hydrology and dynamics of a land-terminating outlet glacier on the western margin of the Greenland Ice Sheet (GrIS). The investigations are motivated by uncertainty about ...

  4. Runoff simulations from the Greenland ice sheet at Kangerlussuaq from 2006-2007 to 2007/08. West Greenland

    SciTech Connect (OSTI)

    Mernild, Sebastian Haugard [Los Alamos National Laboratory; Hasholt, Bent [UNIV OF COPENHAGEN; Van Den Broeke, Michiel [UTRECHT UNIV; Liston, Glen [COLORADO STATE UNIV

    2009-01-01T23:59:59.000Z

    This study focuses on runoff from a large sector of the Greenland Ice Sheet (GrIS) - the Kangerlussuaq drainage area, West Greenland - for the runoff observation period 2006/07 to 2007/08. SnowModel, a state-of-the-art snow-evolution modeling system, was used to simulate winter accumulation and summer ablation processes, including runoff. Independent in situ end-of-winter snow depth and high-resolution runoff observations were used for validation of simulated accumulation and ablation processes. Runoff was modeled on both daily and hourly time steps, filling a data gap of runoff exiting part of the GrIS. Using hourly meteorological driving data instead of smoothed daily-averaged data produced more realistic meteorological conditions in relation to snow and melt threshold surface processes, and produced 6-17% higher annual cumulative runoff. The simulated runoff series yielded useful insights into the present conditions of inter-seasonal and inter-annual variability of Kangerlussuaq runoff, and provided an acceptable degree of agreement between simulated and observed runoff. The simulated spatial runoff distributions, in some areas of the GrIS terminus, were as high as 2,750 mm w.eq. of runoff for 2006/07, while only 900 mm w.eq was simulated for 2007/08. The simulated total runoff from Kangerlussuaq was 1.9 km{sup 3} for 2006/07 and 1.2 km{sup 3} for 2007/08, indicating a reduction of 35-40% caused by the climate conditions and changes in the GrIS freshwater storage. The reduction in runoff from 2006/07 to 2007/08 occurred simultaneously with the reduction in the overall pattern of satellite-derived GrIS surface melt from 2007 to 2008.

  5. 07/06/2009 Melting Ice Could Lead to Massive Waves of Climate Refugees Treehugger 06/30/2009 MELTING GREENLAND ICE SHEETS MAY THREATEN

    E-Print Network [OSTI]

    Hu, Aixue

    /30/2009 MELTING GREENLAND ICE SHEETS MAY THREATEN NORTHEAST U.S., CANADA Federal News Service 06/30/2009 Sea raises spectre of displaced humanity peopleandplanet.net 06/16/2009 Melting Greenland Ice Sheets May Report - Online 06/02/2009 Melting Greenland Ice Sheets May Threaten Northeast, Canada usagnet 06

  6. PRESS RELEASE I PARIS I 24 AOUT 2014 Tropical glaciers have responded to episodes of cooling in Greenland and the Antarctic

    E-Print Network [OSTI]

    van Tiggelen, Bart

    in Greenland and the Antarctic over the past 20,000 years, according to a study carried out mainly glaciers are found) show that these glaciers expanded not only during cooling over Greenland (12,000 years Reversal, or ACR), while temperatures in Greenland were relatively warm. In contrast, the following period

  7. Effect of the potential melting of the Greenland Ice Sheet on the Meridional Overturning Circulation and global climate in the future

    E-Print Network [OSTI]

    Han, Weiqing

    Effect of the potential melting of the Greenland Ice Sheet on the Meridional Overturning February 2011 Keywords: Atlantic Meridional Overturning Circulation Sea level Greenland Ice Sheet Global of the Greenland Ice Sheet since the mid-1990s. This increased ice sheet mass loss might be an evidence of global

  8. Correcting the MODIS snow albedo bias in Greenland based on in situ GC-Net measurements: Implications for the surface energy budget

    E-Print Network [OSTI]

    Zender, Charles

    Correcting the MODIS snow albedo bias in Greenland based on in situ GC-Net measurements). We have documented a systematic negative bias for SZA>55-60 in Greenland. This study uses in situ data from the Greenland Climate Network (GC-Net) to characterize and empirically correct the MODIS snow

  9. The impact of Greenland on the predictability of European weather systems Supervisors: Sue Gray (U. Reading), Ian Renfrew (U. East Anglia) and Richard Swinbank (Met

    E-Print Network [OSTI]

    Renfrew, Ian

    The impact of Greenland on the predictability of European weather systems Supervisors: Sue Gray (U-to-high latitude of Greenland means it has a major influence on the atmospheric circulation of the North Atlantic by the presence of Greenland as is the atmosphere well downstream, for example over the British Isles

  10. Sea Level Rise, Green Greenland & Fantabulous Inference To be removed from Jim Hansen's e-mail list respond to sender with REMOVE as subject

    E-Print Network [OSTI]

    Hansen, James E.

    Sea Level Rise, Green Greenland & Fantabulous Inference To be removed from Jim Hansen's e-mail list on changes occurring in the past few years on Antarctica and Greenland. Mass loss from West Antarctica within the century is higher for West Antarctica than for Greenland, because West Antarctic ice sits

  11. Probabilistic calibration of a Greenland Ice Sheet model using spatially-resolved synthetic observations: toward projections of ice mass loss with uncertainties

    E-Print Network [OSTI]

    Haran, Murali

    1 Probabilistic calibration of a Greenland Ice Sheet model using spatially-resolved synthetic on how well the model reproduces the Greenland Ice Sheet profile. We improve on the previous state et al., 2012). Here, we focus on the Greenland Ice Sheet component of future sea level rise

  12. Ice Thickness Measurements of the Southwest Greenland 2000-m Contour Line J. J. Legarsky, S.P. Gogineni, P. Kanagaratnam, T. L. Akins and Y. C. Wong

    E-Print Network [OSTI]

    Kansas, University of

    Ice Thickness Measurements of the Southwest Greenland 2000-m Contour Line J. J. Legarsky, S Laborato~ performed ice thickness measurements along several flights in the southern part of Greenland. We of the Greenland. INTRODUCTION Since 1993, we have been performing radar ice thickness measurements as a part

  13. Pollution Transport From North America to Greenland During Summer 2008

    SciTech Connect (OSTI)

    Thomas, J. L.; Raut, Jean-Christophe; Law, K. S.; Marelle, L.; Ancellet, G.; Ravetta, F.; Fast, Jerome D.; Pfister, G.; Emmons, L.; Diskin, G. S.; Weinheimer, Andrew J.; Roiger, A.; Schlager, H.

    2013-04-10T23:59:59.000Z

    Ozone pollution transported to the Arctic is a significant concern because of the rapid, enhanced warming in high northern latitudes, which is caused, in part, by short lived climate forcers, such as ozone. Long range transport of pollution contributes to background and episodic ozone levels in the Arctic. However, the extent to which plumes are photochemically active during transport, particularly during the summer, is uncertain. Regional chemical transport model simulations are used to examine photochemical production of ozone in air masses originating from boreal fire and anthropogenic emissions over North America and during their transport toward the Arctic during early July 2008. Model results shows good agreement with aircraft data collected over boreal fire source regions in Canada and several days downwind over Greenland during the study period. Pollutant plumes were transported east and north towards the Arctic and show significant ozone enhancements downwind of source regions. Anthropogenic plumes were more photochemically active than fire plumes. Together, both sources made an important contribution to ozone in pollution plumes transported to the Arctic.

  14. Pollution transport from North America to Greenland during summer 2008

    SciTech Connect (OSTI)

    Thomas, J. L.; Raut, Jean-Christophe; Law, K. S.; Marelle, L.; Ancellet, G.; Ravetta, F.; Fast, Jerome D.; Pfister, G.; Emmons, L.; Diskin, G. S.; Weinheimer, Andrew J.; Roiger, A.; Schlager, H.

    2013-04-10T23:59:59.000Z

    Ozone pollution transported to the Arctic is a significant concern because of the rapid, enhanced warming in high northern latitudes, which is caused, in part, by short lived climate forcers, such as ozone. Long range transport of pollution contributes to background and episodic ozone levels in the Arctic. However, the extent to which plumes are photochemically active during transport, particularly during the summer, is uncertain. Regional chemical transport model simulations are used to examine photochemical production 8 of ozone in air masses originating from boreal fire and anthropogenic emissions over North America and during their transport toward the Arctic during early July 2008. Model results shows good agreement with aircraft data collected over boreal fire source regions in Canada and several days down-wind over Greenland during the study period. Pollutant plumes were transported east and north towards the Arctic and show significant ozone enhancements downwind of source regions. Anthropogenic plumes were more photochemically active than fire plumes. Together, both sources made an important contribution to ozone in pollution plumes transported to the Arctic.

  15. Challenges to Understanding the Dynamic Response of Greenland's Marine Terminating Glaciers to Oceanic and Atmospheric Forcing

    E-Print Network [OSTI]

    Straneo, Fiammetta

    The recent retreat and speedup of outlet glaciers, as well as enhanced surface melting around the ice sheet margin, have increased Greenland's contribution to sea level rise to 0.6 0.1 mm yr[superscript ?1] and its ...

  16. IDENTIFYING ICE HYDROMETEOR SIGNATURES ABOVE SUMMIT, GREENLAND USING A MULTI-INSTRUMENT APPROACH

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    IDENTIFYING ICE HYDROMETEOR SIGNATURES ABOVE SUMMIT, GREENLAND USING A MULTI. These retrievals, however, may be adversely affected by ice hydrometeors commonly observed in mixed phase clouds. Research on the effect of ice hydrometeors on the microwave signal is insufficient. We establish that ice

  17. Improvement of radar ice-thickness measurements of Greenland outlet glaciers using SAR processing

    E-Print Network [OSTI]

    Braaten, David A.; Gogineni, S. Prasad; Tammana, Dilip; Namburi, Saikiran; Paden, John; Gurumoorthy, Krishna K.

    2002-01-01T23:59:59.000Z

    Extensive aircraft-based radar ice-thickness measurements over the interior and outlet-glacier regions of the Greenland ice sheet have been obtained by the University of Kansas since 1993, with the latest airborne surveys conducted in May 2001...

  18. Stable dynamics in a Greenland tidewater glacier over 26 years despite reported thinning

    E-Print Network [OSTI]

    Huybrechts, Philippe

    , there is potential for the grounding line to retreat, for calving rates to increase and for the glacier to accelerateStable dynamics in a Greenland tidewater glacier over 26 years despite reported thinning Suzanne L glacier terminating in the northwest corner of the Scoresby Sund fjords. We present a time series

  19. Regional sensitivity of Greenland precipitation to NAO variability E. Mosley-Thompson,1,2

    E-Print Network [OSTI]

    Howat, Ian M.

    Regional sensitivity of Greenland precipitation to NAO variability E. Mosley-Thompson,1,2 C. R. Readinger,1,2 P. Craigmile,3 L. G. Thompson,1,4 and C. A. Calder3 Received 27 September 2005; revised 2. Citation: Mosley-Thompson, E., C. R. Readinger, P. Craigmile, L. G. Thompson, and C. A. Calder (2005

  20. A possible change in mass balance of Greenland and Antarctic ice sheets in the coming century

    SciTech Connect (OSTI)

    Ohmura, A.; Wild, M. [Swiss Federal Institute of Technology, Zurich (Switzerland)] [Swiss Federal Institute of Technology, Zurich (Switzerland); Bengtsson, L. [Max Planck Institute for Meteorology, Hamburg (Germany)] [Max Planck Institute for Meteorology, Hamburg (Germany)

    1996-09-01T23:59:59.000Z

    A high-resolution GCM is found to simulate precipitation and surface energy balance of high latitudes with high accuracy. This opens new possibilities to investigate the future mass balance of polar glaciers and its effect on sea level. The surface mass balance of the Greenland and the Antarctic ice sheets is simulated using the ECHAM3 GCM with T106 horizontal resolution. With this model, two 5-year integrations for the present and doubled carbon dioxide conditions based on the boundary conditions provided by the ECHAM1/T21 transient to what extent the effect of climate change on the mass balance on the two largest glaciers of the world can differ. On Greenland one sees a slight decrease in accumulation and a substantial increase in melt, while on Antarctica a large increase in accumulation without melt is projected. Translating the mass balances into terms of sea-level equivalent, the Greenland discharge causes a sea level rise of 1.1 mm yr{sup {minus}1}, while the accumulation on Antarctica tends to lower it by 0.9 mm yr{sup {minus}1}. The change in the combined mass balance of the two continents is almost zero. The sea level change of the next century can be affected more effectively by the thermal expansion of seawater and the mass balance of smaller glaciers outside of Greenland and Antarctica. 24 refs., 11 figs., 2 tabs.

  1. Rapid volume loss from two East Greenland outlet glaciers quantified using repeat stereo satellite imagery

    E-Print Network [OSTI]

    Stearns, Leigh; Hamilton, Gordon S.

    2007-03-14T23:59:59.000Z

    [1] The coastal portions of Kangerdlugssuaq and Helheim glaciers in southeast Greenland lost at least 51 8 km3 yr?1 of ice between 20012006 due to thinning and retreat, according to an analysis of sequential digital elevation models (DEMs...

  2. Elastic uplift in southeast Greenland due to rapid ice mass loss

    E-Print Network [OSTI]

    Khan, Shfaqat A.; Wahr, John; Stearns, Leigh; Hamilton, Gordon; van Dam, Tonie; Larson, Kristine M.; Francis, Olivier

    2007-11-01T23:59:59.000Z

    [1] The rapid unloading of ice from the southeastern sector of the Greenland ice sheet between 2001 and 2006 caused an elastic uplift of ?35 mm at a GPS site in Kulusuk. Most of the uplift results from ice dynamic-induced volume losses on two nearby...

  3. Evolution of supra-glacial lakes across the Greenland Ice Sheet

    E-Print Network [OSTI]

    Sundal, Aud

    2008-12-05T23:59:59.000Z

    We used 268 cloud-free Moderate-resolution Imaging Spectroradiometer (MODIS) images spanning the melt seasons 2003 and 2005-2007 to study the seasonal evolution of supra-glacial lakes in three different regions of the Greenland ice sheet. Lake area...

  4. Modelling Lake Volumes and Runoff on the Western Greenland Ice Sheet

    E-Print Network [OSTI]

    Lund, Sarah

    Supra-glacial lakes can act as a key regulator of variable surface meltwater to the ice-bed interface on the Greenland Ice Sheet. In light of recent numerical studies focussing on the impact of variable surface meltwater inputs to ice sheet dynamics...

  5. Step-wise changes in glacier flow speed coincide with calving and glacial earthquakes at Helheim Glacier, Greenland

    E-Print Network [OSTI]

    Nettles, M.; Larsen, T.B.; Elosegui, P.; Hamilton, Gordon S.; Stearns, Leigh; Ahlstrom, A.P.; Davis, J.L.; Anderson, M.L.; de Juan, J.; Khan, S.A.; Stenseng, L.; Ekstrom, G.; Forsberg, R.

    2008-12-30T23:59:59.000Z

    [1] Geodetic observations show several large, sudden increases in flow speed at Helheim Glacier, one of Greenland's largest outlet glaciers, during summer, 2007. These step-like accelerations, detected along the length of the glacier, coincide...

  6. Decay of the Greenland Ice Sheet due to surface-meltwater-induced acceleration of basal sliding

    E-Print Network [OSTI]

    Greve, Ralf

    2009-01-01T23:59:59.000Z

    Simulations of the Greenland Ice Sheet are carried out with a high-resolution version of the ice-sheet model SICOPOLIS for several global-warming scenarios for the period 1990-2350. In particular, the impact of surface-meltwater-induced acceleration of basal sliding on the stability of the ice sheet is investigated. A parameterization for the acceleration effect is developed for which modelled and measured mass losses of the ice sheet in the early 21st century agree well. The main findings of the simulations are: (i) the ice sheet is generally very susceptible to global warming on time-scales of centuries, (ii) surface-meltwater-induced acceleration of basal sliding leads to a pronounced speed-up of ice streams and outlet glaciers, and (iii) this ice-dynamical effect accelerates the decay of the Greenland Ice Sheet as a whole significantly, but not catastrophically, in the 21st century and beyond.

  7. A new era of sub-millimeter GRB afterglow follow-ups with the Greenland Telescope

    E-Print Network [OSTI]

    Urata, Yuji; Asada, Keiichi; Hirashita, Hiroyuki; Inoue, Makoto; Ho, Paul T P

    2015-01-01T23:59:59.000Z

    A planned rapid submillimeter (submm) Gamma Ray Burst (GRBs) follow-up observations conducted using the Greenland Telescope (GLT) is presented. The GLT is a 12-m submm telescope to be located at the top of the Greenland ice sheet, where the high-altitude and dry weather porvides excellent conditions for observations at submm wavelengths. With its combination of wavelength window and rapid responding system, the GLT will explore new insights on GRBs. Summarizing the current achievements of submm GRB follow-ups, we identify the following three scientific goals regarding GRBs: (1) systematic detection of bright submm emissions originating from reverse shock (RS) in the early afterglow phase, (2) characterization of forward shock and RS emissions by capturing their peak flux and frequencies and performing continuous monitoring, and (3) detections of GRBs as a result of the explosion of first-generation stars result of GRBs at a high redshift through systematic rapid follow ups. The light curves and spectra calcul...

  8. Isotopic measurements of solar noble gases in individual micrometeorites from Greenland and Antarctica

    SciTech Connect (OSTI)

    Olinger, C.T.

    1990-01-01T23:59:59.000Z

    Noble gases are studied in individual 100 micron-size particles selected from Greenland and Antarctic glacial sediments. Noble gas isotopic and elemental patterns confirm the extraterrestrial origin of 81 out of 302 particles studied. Micrometeorites in this size range are particularly interesting because they correspond to the peak of the meteoritic mass flux distribution. Many particles studied are compositionally and morphologically similar to known meteoritic materials.

  9. Abundance of fin whales in West Greenland in 2007 M.P. HEIDE-JRGENSEN*, K.L. LAIDRE*+, M. SIMON*, M.L. BURT$, D.L. BORCHERS$ AND M. RASMUSSEN#

    E-Print Network [OSTI]

    Laidre, Kristin L.

    Abundance of fin whales in West Greenland in 2007 M.P. HEIDE-JRGENSEN*, K.L. LAIDRE*+, M. SIMON transect survey of fin whales (Balaenoptera physalus) conducted off West Greenland in 2007 was used of the survey plane. The abundance estimate furthermore only represents the coastal areas of West Greenland

  10. Supraglacial lakes on the Larsen B Ice Shelf, Antarctica, and Paakitsoq Region, Greenland: a comparative study

    E-Print Network [OSTI]

    Banwell, Alison F.; Caballero, Martamaria; Arnold, Neil S.; Glasser, Neil F.; Cathles, L. Mac; MacAyeal, Douglas R.

    2014-05-01T23:59:59.000Z

    .epsl.2011.04.014. 427 Box, J. E., and K. Ski (2007), Remote sounding of Greenland supraglacial melt lakes: 428 implications for subglacial hydraulics, J. Glaciol., 53(181), 257265, 429 doi:10.3189/172756507782202883. 430 Bromwich, D. H., J. P. Nicolas... , Geophys. Res. Lett., 39(16), L16504, 510 doi:10.1029/2012GL052413. 511 Mobley, C. D. (1994), Light and water: radiative transfer in natural waters. 512 Academic Press, San Diego, 592. 513 Phillips, H. A. (1998), Surface meltstreams on the Amery Ice...

  11. Greenland Telescope (GLT) Project: "A Direct Confirmation of Black Hole with Submillimeter VLBI"

    E-Print Network [OSTI]

    Nakamura, M; Asada, K; Chen, B; Chen, M -T; Han, J; Ho, P H P; Hsieh, S -N; Huang, T; Inoue, M; Koch, P; Kuo, C -Y; Martin-Cocher, P; Matsushita, S; Meyer-Zhao, Z; Nishioka, H; Nystom, G; Pradel, N; Pu, H -Y; Raffin, P; Shen, H -Y; Tseng, C -Y

    2013-01-01T23:59:59.000Z

    The GLT project is deploying a new submillimeter (submm) VLBI station in Greenland. Our primary scientific goal is to image a shadow of the supermassive black hole (SMBH) of six billion solar masses in M87 at the center of the Virgo cluster of galaxies. The expected SMBH shadow size of 40-50 $\\mu$as requires superbly high angular resolution, suggesting that the submm VLBI would be the only way to obtain the shadow image. The Summit station in Greenland enables us to establish baselines longer than 9,000 km with ALMA in Chile and SMA in Hawaii as well as providing a unique $u$--$v$ coverage for imaging M87. Our VLBI network will achieve a superior angular resolution of about 20 $\\mu$as at 350 GHz, corresponding to $\\sim2.5$ times of the Schwarzschild radius of the supermassive black hole in M87. We have been monitoring the atmospheric opacity at 230 GHz since August. 2011; we have confirmed the value on site during the winter season is comparable to the ALMA site thanks to high altitude of 3,200 m and low temp...

  12. High-Resolution Monitoring of Internal Layers Over the Greenland Ice Sheet P. Kanagaratnam, S.P. Gogineni

    E-Print Network [OSTI]

    Kansas, University of

    High-Resolution Monitoring of Internal Layers Over the Greenland Ice Sheet P. Kanagaratnam, S ice plays an important role in the rise of the Earth's sea level. A key variable in assessing the mass balance of an ice sheet is accumulation rate, which is currently determined from ice cores and pits

  13. Integration Of Reflectance To Study Glacier Surface Using Landsat 7 ETM+: A Case Study Of The Petermann Glacier In Greenland

    E-Print Network [OSTI]

    Gilbes, Fernando

    Integration Of Reflectance To Study Glacier Surface Using Landsat 7 ETM+: A Case Study Of The Petermann Glacier In Greenland Flix O. Rivera Santiago Department Of Geology, University Of Puerto Rico, Mayaguez Campus, P.O. Box 9017 Mayaguez Puerto Rico,00681 Abstract- Glaciers are masses of ice and granular snow

  14. Evaluation of the MODIS (MOD10A1) daily snow albedo product over the Greenland ice sheet

    E-Print Network [OSTI]

    Box, Jason E.

    Evaluation of the MODIS (MOD10A1) daily snow albedo product over the Greenland ice sheet Julienne C Abstract This study evaluates the performance of the beta-test MODIS (MOD10A1) daily albedo product using with the launch of the first Landsat. Since then, a wide range of optical-wavelength sensors have been launched

  15. Seasonally resolved Alpine and Greenland ice core records of anthropogenic HCl emissions over the 20th century

    E-Print Network [OSTI]

    Fischer, Hubertus

    biomass burning activity in western Europe. From 1925 to 1960 the HCl levels were slightly higher (39 ng of atmospheric HCl pollution over Europe and Greenland since the early 20th century. The evaluation of the HCl g1 ), mainly due to growing coal burning emissions in western Europe. In the late 1960s a sharp

  16. Tip Jets and Barrier Winds: A QuikSCAT Climatology of High Wind Speed Events around Greenland

    E-Print Network [OSTI]

    Renfrew, Ian

    of Environmental Sciences, University of East Anglia, Norwich, United Kingdom (Manuscript received 28 September meteorological, oceanographic, cli- matological, and wind energy applications. Strong sur- face winds overTip Jets and Barrier Winds: A QuikSCAT Climatology of High Wind Speed Events around Greenland G. W

  17. Grenada-Pilot Program for Climate Resilience (PPCR) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEI ReferenceJump to:Information 9297484°, -82.345189°Gregson

  18. Grenada-Regional Implementation Plan for CARICOM's Climate Change

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEI ReferenceJump to:Information 9297484°,

  19. Grenada County, Mississippi: Energy Resources | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG ContractingGreenOrderNebraska: Energy

  20. Grenada-Caribbean Community (CARICOM) Sustainable Energy Roadmap and

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG ContractingGreenOrderNebraska: EnergyStrategy | Open Energy

  1. Grenada-Caribbean Solar Finance Program | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/ExplorationGoods | Open EnergyGreenrockGreenwood

  2. Determining Greenland Ice Sheet sensitivity to regional climate change: one-way coupling of a 3-D thermo-mechanical ice sheet model with a mesoscale climate model

    E-Print Network [OSTI]

    Schlegel, Nicole-Jeanne

    2011-01-01T23:59:59.000Z

    Jakobshavn I. Rinks Observed Historic Flux (km 3 ice/year)I. Rinks * Outlets fed by the Northeast Greenland Ice StreamRinks, measured in 2000). Figure 3.1: Steady-state (A) topography (m) and (C) ice

  3. An in situ measurement of the radio-frequency attenuation in ice at Summit Station, Greenland

    E-Print Network [OSTI]

    J. Avva; J. M. Kovac; C. Miki; D. Saltzberg; A. G. Vieregg

    2014-09-30T23:59:59.000Z

    We report an in situ measurement of the electric field attenuation length at radio frequencies for the bulk ice at Summit Station, Greenland, made by broadcasting radio-frequency signals vertically through the ice and measuring the relative power in the return ground bounce signal. We find the depth-averaged field attenuation length to be 947 +92/-85 meters at 75 MHz. While this measurement has clear radioglaciological applications, the radio clarity of the ice also has implications for the detection of ultra-high energy (UHE) astrophysical particles via their radio emission in dielectric media such as ice. The measured attenuation length at Summit Station is comparable to previously measured radio-frequency attenuation lengths at candidate particle detector sites around the world, and strengthens the case for Summit Station as the most promising northern site for UHE neutrino detection.

  4. Meltwater flux and runoff modeling in the abalation area of jakobshavn Isbrae, West Greenland

    SciTech Connect (OSTI)

    Mernild, Sebastian Haugard [Los Alamos National Laboratory; Chylek, Petr [Los Alamos National Laboratory; Liston, Glen [COLORADO STATE UNIV.; Steffen, Konrad [UNIV OF COLORADO

    2009-01-01T23:59:59.000Z

    The temporal variability in surface snow and glacier melt flux and runoff were investigated for the ablation area of lakobshavn Isbrae, West Greenland. High-resolution meteorological observations both on and outside the Greenland Ice Sheet (GrIS) were used as model input. Realistic descriptions of snow accumulation, snow and glacier-ice melt, and runoff are essential to understand trends in ice sheet surface properties and processes. SnowModel, a physically based, spatially distributed meteorological and snow-evolution modeling system was used to simulate the temporal variability of lakobshavn Isbrre accumulation and ablation processes for 2000/01-2006/07. Winter snow-depth observations and MODIS satellite-derived summer melt observations were used for model validation of accumulation and ablation. Simulations agreed well with observed values. Simulated annual surface melt varied from as low as 3.83 x 10{sup 9} m{sup 3} (2001/02) to as high as 8.64 x 10{sup 9} m{sup 3} (2004/05). Modeled surface melt occurred at elevations reaching 1,870 m a.s.l. for 2004/05, while the equilibrium line altitude (ELA) fluctuated from 990 to 1,210 m a.s.l. during the simulation period. The SnowModel meltwater retention and refreezing routines considerably reduce the amount of meltwater available as ice sheet runoff; without these routines the lakobshavn surface runoff would be overestimated by an average of 80%. From September/October through May/June no runoff events were simulated. The modeled interannual runoff variability varied from 1.81 x 10{sup 9} m{sup 3} (2001/02) to 5.21 x 10{sup 9} m{sup 3} (2004/05), yielding a cumulative runoff at the Jakobshavn glacier terminus of {approx}2.25 m w.eq. to {approx}4.5 m w.eq., respectively. The average modeled lakobshavn runoff of {approx}3.4 km{sup 3} y{sup -1} was merged with previous estimates of Jakobshavn ice discharge to quantify the freshwater flux to Illulissat Icefiord. For both runoff and ice discharge the average trends are similar, indicating increasing (insignificant) influx of freshwater to the Illulissat Icefiord for the period 2000/01-2006/07. This study suggests that surface runoff forms a minor part of the overall Jakobshavn freshwater flux to the fiord: around 7% ({approx}3.4 km{sup 3} y{sup -1}) of the average annual freshwater flux of {approx}51.0 km{sup 3} y{sup -1} originates from the surface runoff.

  5. A meteorological experiment in the melting zone of the Greenland ice sheet

    SciTech Connect (OSTI)

    Oerlemans, J. (Utrecht Univ. (Netherlands)); Vugts, H.F. (Free Univ. of Amsterdam (Netherlands))

    1993-03-01T23:59:59.000Z

    Preliminary results are described from a glaciometeorological experiment carried out in the margin (melting zone) of the Greenland ice sheet in the summers of 1990 and 1991. This work was initiated within the framework of a Dutch research program on land ice and sea level change. Seven meteostations were operated along a transect running from the tundra well onto the ice sheet. At the ice edge, humidity, temperature, and wind profiles were obtained with a tethered balloon. On the ice sheet, 90 km from the edge, a boundary-layer research unit, including a sound detecting and ranging system (SODAR) and a radio acoustic sounding system (RASS), was established. Although focusing on the relation between surface energy balance, glacier mass balance, and ice flow, the experiment has also delivered a unique dataset on the dynamics of the atmospheric boundary layer around the warm tundra-cold ice sheet transition. Unexpected behavior was found for the surface albedo during the melt season. Lowest values are not found close to the ice edge, which is usual for glaciers, but higher on the ice sheet. Meltwater accumulation due to inefficient surface drainage was found to be the cause for this. The wind regime is dominated by katabatic flow from the ice sheet. The katabatic layer is typically 100-200 m thick. Close to the ice edge, the flow exhibits a very regular daily rhythm, with maximum wind speed in the afternoon. Farther on the ice sheet, the regime changes, and wind speed reaches maximum values in late night/early morning.

  6. Greenland ice sheet surface mass-balance modeling in a 131-year perspective, 1950-2080

    SciTech Connect (OSTI)

    Mernild, Sebastian Haugard [Los Alamos National Laboratory; Liston, Glen [COLORADO STATE UNIV.; Hiemstra, Christopher [COLORADO STATE UNIV.; Christensen, Jens [DANISH METEOROLOGICAL INS.

    2009-01-01T23:59:59.000Z

    Fluctuations in the Greenland Ice Sheet (GrIS) surface mass-balance (SMB) and freshwater influx to the surrounding oceans closely follow climate fluctuations and are of considerable importance to the global eustatic sea level rise. SnowModel, a state-of-the-art snow-evolution modeling system, was used to simulate variations in the GrIS melt extent, surface water balance components, changes in SMB, and freshwater influx to the ocean. The simulations are based on the IPCC scenario AlB modeled by the HIRHAM4 RCM (using boundary conditions from ECHAM5 AOGCM) from 1950 through 2080. In-situ meteorological station (GC-Net and WMO DMI) observations from inside and outside the GrIS were used to validate and correct RCM output data before it was used as input for SnowModel. Satellite observations and independent SMB studies were used to validate the SnowModel output and confirm the model's robustness. We simulated a {approx}90% increase in end-of-summer surface melt extent (0.483 x 10{sup 6} km{sup 2}) from 1950 to 2080, and a melt index (above 2,000-m elevation) increase of 138% (1.96 x 10{sup 6} km{sup 2} x days). The greatest difference in melt extent occured in the southern part of the GrIS, and the greatest changes in the number of melt days was seen in the eastern part of the GrIS ({approx}50-70%) and was lowest in the west ({approx}20-30%). The rate of SMB loss, largely tied to changes in ablation processes, lead to an enhanced average loss of 331 km{sup 3} from 1950 to 2080, an average 5MB level of -99 km{sup 3} for the period 2070-2080. GrIS surface freshwater runoff yielded an eustatic rise in sea level from 0.8 {+-} 0.1 (1950-1959) to 1.9 {+-} 0.1 mm (2070-2080) sea level equivalent (SLE) y{sup -1}. The accumulated GrIS freshwater runoff contribution from surface melting equaled 160 mm SLE from 1950 through 2080.

  7. This news release accompanies the press conference, "Greenland Glaciers: What Lies Beneath," to be given Wednesday, December 16, 2009, at 9:00 a.m. PT (12:00 NOON ET) at the American Geophysical Union Meeting

    E-Print Network [OSTI]

    Howat, Ian M.

    on acceleration and ice loss -- through fast-moving outlet glaciers that connect the inland ice sheet to the ocean-cost technologies to track the flow of glaciers and get a glimpse of what lies beneath the ice. As ice melts, water-more- This news release accompanies the press conference, "Greenland Glaciers: What Lies Beneath

  8. The influence of air temperature inversions on snowmelt and glacier mass-balance simulations, Ammassalik island, SE Greenland

    SciTech Connect (OSTI)

    Mernild, Sebastian Haugard [Los Alamos National Laboratory; Liston, Glen [COLORADO STATE UNIV.

    2009-01-01T23:59:59.000Z

    In many applications, a realistic description of air temperature inversions is essential for accurate snow and glacier ice melt, and glacier mass-balance simulations. A physically based snow-evolution modeling system (SnowModel) was used to simulate eight years (1998/99 to 2005/06) of snow accumulation and snow and glacier ice ablation from numerous small coastal marginal glaciers on the SW-part of Ammassalik Island in SE Greenland. These glaciers are regularly influenced by inversions and sea breezes associated with the adjacent relatively low temperature and frequently ice-choked fjords and ocean. To account for the influence of these inversions on the spatiotemporal variation of air temperature and snow and glacier melt rates, temperature inversion routines were added to MircoMet, the meteorological distribution sub-model used in SnowModel. The inversions were observed and modeled to occur during 84% of the simulation period. Modeled inversions were defined not to occur during days with strong winds and high precipitation rates due to the potential of inversion break-up. Field observations showed inversions to extend from sea level to approximately 300 m a.s.l., and this inversion level was prescribed in the model simulations. Simulations with and without the inversion routines were compared. The inversion model produced air temperature distributions with warmer lower elevation areas and cooler higher elevation areas than without inversion routines due to the use of cold sea-breeze base temperature data from underneath the inversion. This yielded an up to 2 weeks earlier snowmelt in the lower areas and up to 1 to 3 weeks later snowmelt in the higher elevation areas of the simulation domain. Averaged mean annual modeled surface mass-balance for all glaciers (mainly located above the inversion layer) was -720 {+-} 620 mm w.eq. y{sup -1} for inversion simulations, and -880 {+-} 620 mm w.eq. y{sup -1} without the inversion routines, a difference of 160 mm w.eq. y{sup -1}. The annual glacier loss for the two simulations was 50.7 x 10{sup 6} m{sup 3} y{sup -1} and 64.4 x 10{sup 6} m{sup 3} y{sup -1} for all glaciers - a difference of {approx}21%. The average equilibrium line altitude (ELA) for all glaciers in the simulation domain was located at 875 m a.s.l. and at 900 m a.s.l. for simulations with or without inversion routines, respectively.

  9. Increasing runoff and sediment load from the Greenland ice sheet at kangerlussuaq (Sonder Stromfjord) in a 30-year perspective, 1979-2008

    SciTech Connect (OSTI)

    Mernild, Sebastian Haugard [Los Alamos National Laboratory; Liston, Glen [COLORADO STATE UNIV.; Hasholt, Bent [UNIV OF COPENGAGEN; Steffen, Konrad [UNIV OF COLORADO; Van Den Broeke, Michiel [UTRECHT UNIV; Mcgrath, Daniel [UNIV OF COLORADO; Yde, Jacob [UNIV OF AARHUS

    2009-01-01T23:59:59.000Z

    This observation and modeling study provides insights into runoff and sediment load exiting the Watson River drainage basin, Kangerlussuaq, West Greenland during a 30 year period (1978/79-2007/08) when the climate experienced increasing temperatures and precipitation. The 30-year simulations quantify the terrestrial freshwater and sediment output from part of the Greenland Ice Sheet (GrIS) and the land between the GrIS and the ocean, in the context of global warming and increasing GrIS surface melt. We used a snow-evolution modeling system (SnowModel) to simulate the winter accumulation and summer ablation processes, including runoff and surface mass balance (SMB), of the Greenland ice sheet. Observed sediment concentrations were related to observed runoff, producing a sediment-load time series. To a large extent, the SMB fluctuations could be explained by changes in net precipitation (precipitation minus evaporation and sublimation), with 8 out of 30 years having negative SMB, mainly because of relatively low annual net precipitation. The overall trend in net precipitation and runoff increased significantly, while 5MB increased insignificantly throughout the simulation period, leading to enhanced precipitation of 0.59 km{sup 3} w.eq. (or 60%), runoff of 0.43 km{sup 3} w.eq (or 54%), and SMB of 0.16 km3 w.eq. (or 86%). Runoff rose on average from 0.80 km{sup 3} w.eq. in 1978/79 to 1.23 km{sup 3} w.eq. in 2007/08. The percentage of catchment oudet runoff explained by runoff from the GrIS decreased on average {approx} 10%, indicating that catchment runoff throughout the simulation period was influenced more by precipitation and snowmelt events, and less by runoff from the GrIS. Average variations in the increasing Kangerlussuaq runoff from 1978/79 through 2007/08 seem to follow the overall variations in satellite-derived GrIS surface melt, where 64% of the variations in simulated runoff were explained by regional melt conditions on the GrIS. Throughout the simulation period, the sediment load varied from a minimum of 0.96 x 10{sup 6} t y{sup -1} in 1991/92 to a maximum of 3.52 x 10{sup 6} t y{sup -1} in 2006/07, showing an average increase of sediment load of 9.42 x 10{sup 5} t (or 72%) throughout the period.

  10. A new bed elevation dataset for Greenland

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    the high reso- lution surface topography with the bed datasurface. We estimate this uncertainty using a bootstrap approach for two classes of bed topography:

  11. The Fear of French Negroes: Transcolonial Collaboration in the Revolutionary Americas

    E-Print Network [OSTI]

    Johnson, Sara E.

    2012-01-01T23:59:59.000Z

    Guadeloupe. Paris: LHarmattan, 1986. Collections Recher-au XIXe sicle. Paris: LHarmattan, 1996. Equiano, Olaudah.

  12. The Right to Life with Dignity: Economic and Social Rights Respect in the World

    E-Print Network [OSTI]

    Kolp, Felicity Ann

    2010-01-01T23:59:59.000Z

    Italy Jamaica Japan Jordan Kazakhstan Kenya Korea, Dem. Rep.New Zealand Iceland Kazakhstan Korea, Dem. Rep. BulgariaChina Croatia Grenada Jamaica Kazakhstan Korea, Rep. Lebanon

  13. Estimating Migration Resistance: a Case Study of Greenlandic Arctic Terns

    E-Print Network [OSTI]

    Hensz, Christopher

    2013-01-15T23:59:59.000Z

    differences in environments along both paths Data ? Remote sensing: ? CCMP ocean winds ? AVHRR temperature ? AVHRR sea ice ? NPP layer 4 product ? Models: ? Linear exploration ? Circular-linear regression ? Non-linear regression m g C /m 2... d ay C m /s Models ? Implemented in R ? Models: ? Linear exploration Southern Migration, 9 birds, n=929 Northern Migration, 9 birds, n=629 Future Directions 1: Finish non-linear model 2: Generalize procedure and include...

  14. 32 JANUARY 2005| cap in Greenland. For data collec-

    E-Print Network [OSTI]

    Hickey, Barbara

    a weatherstationtorelayobservations and dug fox holes and additional cylindrical columns in the snow to take measurements interdecadal sea level variations with 10­25-yr time scales and peak-to-trough changes of ~5 cm. The Hawaii

  15. Hydrology of a land-terminating Greenlandic outlet glacier

    E-Print Network [OSTI]

    Cowton, Thomas Ralph

    2013-11-28T23:59:59.000Z

    Hydrology is recognised as an important component of the glacial system in alpine environments. In particular, the subglacial drainage of surface meltwaters is known to exert a strong influence on the motion of glaciers ...

  16. Manniche's the Terrestrial Mammals and Birds of Northeast Greenland

    E-Print Network [OSTI]

    Journal: Condor Volume: 13 Issue: 2 (March-April) Section: Publications Reviewed Year: 1911 Pages: 80

  17. Modelling the hydrology of the Greenland ice sheet

    E-Print Network [OSTI]

    Karatay, Mehmet Rahmi

    2011-06-28T23:59:59.000Z

    This thesis aims to better understand the relationships between basal water pressure, friction, and sliding mechanisms at ice sheet scales. In particular, it develops a new subglacial hydrology model (Hydro) to explicitly ...

  18. Quebec Recovery of White-Fronted Goose Banded in Greenland

    E-Print Network [OSTI]

    O. H. Hewitt Journal: Bird Banding Volume: 19 Issue: 3 (July) Section: General Notes Year: 1948 Pages: 124

  19. 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

  20. Infrasound analysis of I18DK, northwest Greenland

    E-Print Network [OSTI]

    Evers, Läslo G.

    is infrasound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 The medium siting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Station environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Medium dependency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Source regions

  1. ARM - Field Campaign - Lidar support for ICECAPS at Summit, Greenland

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032)8LigovCampaignsCLEX-5govCampaignsFall-Clouds

  2. Complex systems influence melting of Greenland ice sheet

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would like submit the followingthMeasurementsMay-20,-2015 SignComplex systems

  3. Hainan Greenland Microalgae Biotechnology Co Ltd | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/ExplorationGoodsGuangzhou,GuizhouGuyana:Hae In Corp

  4. Team advances understanding of the Greenland Ice Sheet's meltwater

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening a solidSynthesis of 2D AlloysTrails News Home | ORNL | News

  5. PROJECT INFORMATION Project Number: S61268-583

    E-Print Network [OSTI]

    Barthelat, Francois

    ANALYSIS Narrative summary Expected results Performance measurement Assumptions and level of risk Goal and decision-makers with tools for developing IWRM policies in three DC's (Grenada, Guyana, Jamaica) by Year 6, Grenada and Guyana are committed to achieving and sustaining project results. Level of Risk: Low 2

  6. Male gender, increased blood viscosity, body mass index and triglyceride levels are independently associated with systemic relative hypertension in sickle cell anemia

    E-Print Network [OSTI]

    Boyer, Edmond

    , Centre Hospitalier Universitaire de Pointe--Pitre, Pointe- -Pitre, Guadeloupe; 2 Universit des'Iinvestigation Clinique - Epidmiologie Clinique 802 Inserm Antilles-Guyane, Centre Hospitalier Universitaire de Pointe--Pitre, Pointe--Pitre, Guadeloupe; 5 Unit Transversale de la Drpanocytose, Centre Hospitalier Universitaire de

  7. Proceedings World Geothermal Congress 2005 Antalya, Turkey, 24-29 April 2005

    E-Print Network [OSTI]

    Boyer, Edmond

    Proceedings World Geothermal Congress 2005 Antalya, Turkey, 24-29 April 2005 1 Geophysical Methods Applied to the Assessment of the Bouillante Geothermal Field (Guadeloupe, French West Indies) Hubert, 45064 Orlans Cedex 2, France h.fabriol@brgm.fr Keywords: geothermal exploration, Guadeloupe Island

  8. The Right to Life with Dignity: Economic and Social Rights Respect in the World

    E-Print Network [OSTI]

    Kolp, Felicity Ann

    2010-01-01T23:59:59.000Z

    Rep. Costa Rica Cote dIvoire Croatia Cuba Cyprus Czech Rep.Japan Spain Switzerland Poland Croatia Maldives TurkmenistanSeychelles China Costa Rica Croatia Grenada Ireland Italy

  9. The Heroic Framing of US Foreign Policy

    E-Print Network [OSTI]

    Shaw, Emily D.

    2010-01-01T23:59:59.000Z

    the 1994-1995 invasion of Haiti, the 1995 joint interventionEl Salvador, Grenada, Haiti, Honduras, Hungary, Indonesia,US became concerned about Haiti after the 1990 election of

  10. Spread of ice mass loss into northwest Greenland observed by GRACE and GPS

    E-Print Network [OSTI]

    Khan, Shfaqat Abbas; Wahr, John; Bevis, Michael; Velicogna, Isabella; Kendrick, Eric

    2010-01-01T23:59:59.000Z

    Geophys. J. Int. , 171(2), Peltier, W. R. (2004), Globaland VM2 viscosity profile of [Peltier, 2004]) to removeand VM2 viscosity profile [Peltier, 2004]. These predicted

  11. 34 Pauline Kristiansen life in the household, growing up in north-west Greenland

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 34 Length of track 1 hour 12 minutes Title of track Pauline Kristiansen life in the household...

  12. 16 The culture of hunting and bachelorhood in north-west Greenland

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 16 Length of track 1 hour Title of track The culture of hunting and bachelorhood in north...

  13. 29 Discussion of the place names of north-west Greenland with Massanguaq Jensen

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 29 Length of track 36 minutes Title of track Discussion of the place names of north...

  14. 35 Qaerngaq Nielsen life as a hunter in north-west Greenland

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 35 Length of track 1 hour 3 minutes Title of track Qaerngaq Nielsen life as a hunter in north...

  15. 30 Mikisuk Karlsson her life in Savissivik, north-west Greenland

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 30 Length of track 30 minutes Title of track Mikisuk Karlsson her life in Savissivik, north...

  16. 10 The life of a hunter in Savissivik, north-west Greenland

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 10 Length of track 55 minutes Title of track The life of a hunter in Savissivik, north...

  17. Greenland temperature, climate change, and human society during the last 11,600 years

    E-Print Network [OSTI]

    Kobashi, Takuro

    2007-01-01T23:59:59.000Z

    temperature reconstruction from water isotopes in ice cores.temperature reconstruction from water isotopes in ice cores,Finkel, Changes in deep-water formation during the Younger

  18. Longpath DOAS observations of surface BrO at Summit, Greenland

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    D. J. , Friess, U. , Platt, U. , Flocke, F. M. , Orlando, J.Chipperfield, M. , Harder, H. , Platt, U. , Sinnhuber, B. ,Peleg, M. , Luria, M. , and Platt, U. : DOAS measurements of

  19. Assessing and Analyzing Near-Surface Radar Snow Accumulation Layers at Summit, Greenland

    E-Print Network [OSTI]

    Overly, Thomas Buckmaster

    2010-04-28T23:59:59.000Z

    depth are compared to physical properties, age-depth relationships, and accumulation rates from ice cores near Summit. Having established the radar horizons as annual accumulation markers, a 350-year record of accumulation rate is derived and analyzed...

  20. Increased Runoff from Melt from the Greenland Ice Sheet: A Response to Global Warming

    E-Print Network [OSTI]

    Huybrechts, Philippe

    conditions over the ablation zone of the ice sheet, which caused a record melt extent. The year 2006 mass balance changes of the GrIS. Airborne and satellite laser-altimetry data analyses were used

  1. Apatite in early Archean Isua supracrustal rocks, southern West Greenland: its origin, association with graphite and

    E-Print Network [OSTI]

    Arrhenius, Gustaf

    ), metacherts, metacarbonates and mafic dykes in the Isua supracrustal belt (ISB) have been determined by laser ablation inductively coupled plasma mass spectrometry. The results together with petrographic observations

  2. Quantitative estimates of velocity sensitivity to surface melt variations at a large Greenland outlet glacier

    E-Print Network [OSTI]

    Anderson, M.L.; Nettles, M.; Larsen, T.B.; Hamilton, Gordon S.; Stearns, Leigh

    2011-09-01T23:59:59.000Z

    front. Calving events at the glacier front produce tsunami signals in the tide-gauge record, which we use to verify our visual and seismic detections of major calving events. The combined calving dataset for 2008 that we use to correct the velocity... evolution in sensitivity to melt input indicates a nonlinear velocity response to surface melt, and points to the need for a better understanding of the response to melting, particularly as atmospheric temperatures rise. We believe that our results...

  3. Controls on the recent speed-up of Jakobshavn Isbrae, West Greenland

    E-Print Network [OSTI]

    van der Veen, Cornelis J.; Plummer, J. C.; Stearns, L. A.

    2011-02-05T23:59:59.000Z

    suggests a value for the viscosity parameter about half the initially selected value, applicable to ice within a few 8C of the melting temperature (Hooke, 1981). It is possible that the ice in the lower parts of the glacier is warmed by meltwater... and others, 2004; Thomas, 2004) after several years of thickening (Thomas and others, 1998). Airborne laser altimetry surveys conducted in 2002 and 2003 showed thinning rates in excess of 10ma1 over much of the lower trunk (Thomas, 2004). Speeds near...

  4. Controls on the recent speed-up of Jakobshavn Isbr, West Greenland

    E-Print Network [OSTI]

    van der Veen, Cornelis J.; Plummer, J.C.; Stearns, Leigh

    2011-09-01T23:59:59.000Z

    suggests a value for the viscosity parameter about half the initially selected value, applicable to ice within a few 8C of the melting temperature (Hooke, 1981). It is possible that the ice in the lower parts of the glacier is warmed by meltwater... and others, 2004; Thomas, 2004) after several years of thickening (Thomas and others, 1998). Airborne laser altimetry surveys conducted in 2002 and 2003 showed thinning rates in excess of 10ma1 over much of the lower trunk (Thomas, 2004). Speeds near...

  5. Sensitive response of the Greenland Ice Sheet to surface melt drainage over soft bed

    E-Print Network [OSTI]

    Bougamont, M H; Christoffersen,P.; Hubbard, A. L.; Fitzpatrick, A. A.; Doyle, S. H.; Carter, S. P.

    2014-09-29T23:59:59.000Z

    by detailed energy balance observations. The Cryosphere 6, 199-209, doi:doi:10.5194/tc-6-199-2012 (2012). ... by frictional and geothermal heating accumulates at the 136 bed over the course of winter and is released together with the first SGL drainage 137 events. With either one of these factors included, our model was able to reproduce the 138 2010 spring...

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

    E-Print Network [OSTI]

    Czimczik, Claudia I; Welker, Jeffrey M

    2010-01-01T23:59:59.000Z

    sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries,

  7. COMPARISON OF MODIS AND MISR-DERIVED SURFACE ALBEDO WITH IN SITU MEASUREMENTS IN GREENLAND

    E-Print Network [OSTI]

    Oldenburg, Carl von Ossietzky Universitt

    visible and near infrared (NIR) data from sensors such as the NOAA Advanced Very High Resolution to spectral signatures for high- resolution snow albedo retrievals. This study evaluates snow surface albedo

  8. The distribution and ecology of benthic Foraminifera and associated meiofauna in the Northeast Water Polynya, Greenland

    E-Print Network [OSTI]

    Newton, Adrian Charles

    1994-01-01T23:59:59.000Z

    Abundance of living calcareous Foraminifera and associated meiofauna have been estimated from the Northeast Water Polynya. Calcareous forams (] 150 gm) represented on average 28 and 47 % of the abundance and biomass respectively of the meiofaunal...

  9. Greenland temperature, climate change, and human society during the last 11,600 years

    E-Print Network [OSTI]

    Kobashi, Takuro

    2007-01-01T23:59:59.000Z

    a firn densification-heat transfer model [Goujon et al. ,firn densification-heat transfer model to calculate surfaceand Koci, 1990]. A heat transfer model study [Li et al. ,

  10. Modeling the response of subglacial drainage at Paakitsoq, West Greenland, to 21st century climate change

    E-Print Network [OSTI]

    Mayaud, Jerome R.; Banwell, Alison F.; Arnold, Neil S.; Willis, Ian C.

    2015-01-22T23:59:59.000Z

    we test [Banwell, unpublished PhD thesis, 2012], so predicted pressure 242 fluctuations are unlikely to be a strong function of the k value used to determine the 243 catchment size. Therefore we use k = 0.95 to determine: i) the size and shape... conduits from experiencing high creep closure rates at this time, we apply an initial 24 h spin-262 up period where no wall melt or creep closure occurs (i.e. the Spring and Hutter [1981] 263 equations are turned off), and a subsequent 24 h spin...

  11. Acceleration of the contribution of the Greenland and Antarctic ice sheets to sea level rise

    E-Print Network [OSTI]

    Rignot, E.; Velicogna, I.; van den Broeke, M. R; Monaghan, A.; Lenaerts, J. T. M

    2011-01-01T23:59:59.000Z

    make a large sea?level rise contribu- tion, Geophys. Res.and Antarctic ice sheets to sea level rise E. Rignot, 1,2 I.ice sheets to sea level rise, Geophys. Res. Lett. , 38,

  12. New Method Relates Greenland Ice Sheet Changes to Sea-Level Rise | U.S. DOE

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011R - 445 CU -Standards Beganof

  13. Meltwater effects on flow of Greenland's ice sheet less severe for sea

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    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home andDispositionMechanicalAbout UsHomelevel rise than

  14. Meltwater effects on flow of Greenland's ice sheet less severe for sea

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home andDispositionMechanicalAbout UsHomelevel rise

  15. Greenland Ice Sheet "Sliding" a Small Contributor to Future Sea-Level

    Office of Science (SC) Website

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4(SC) MappingOctober 12,U.S. DOEGas PhaseGrant/CooperativeRise | U.S.

  16. Zoogeography and systematics of the shallow water echinodermata of Texas

    E-Print Network [OSTI]

    Pomory, Christopher Mark

    1990-01-01T23:59:59.000Z

    Guatemala Honduras Nicarag Cos Oo Jamaica Haiti Guadeloupe Oa Dominica ~Martinique tySt Lucia +Barbados @&~St- Vincent Gpr nada Tobago rinidad Belize Puerto Rico Curacao Aru 1 Bonaire a ~ ia a Rica Venezuela Panama Anguilla St. Martin...

  17. Observations of hydroxyl and peroxy radicals and the impact of BrO at Summit, Greenland in 2007 and 2008

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    D. J. , Friess, U. , Platt, U. , Flocke, F. M. , Orlando, P.1980. Hausmann, M. and Platt, U. : Spectroscopic measurement826833, 1982. Stutz, J. and Platt, U. : Improving long-path

  18. Accuracy assessment of the MODIS 16-day albedo product for snow: comparisons with Greenland in situ measurements

    E-Print Network [OSTI]

    Kurapov, Alexander

    upon a surface. Snow and ice cover, with its high albedo, is a critical component of the global energy regions is available from the Advanced Very High Resolution Radiometer (AVHRR) Polar Pathfinder (APP) data-by-site basis using precise optical black radiometer data. Results indicate that the MOD43 albedo product

  19. Feasibility of reconstructing paleoatmospheric records of selected alkanes, methyl halides, and sulfur gases from Greenland ice cores

    E-Print Network [OSTI]

    Aydin, M.; Williams, M. B; Saltzman, E. S

    2007-01-01T23:59:59.000Z

    drilling fluid, which probably penetrated the ice along fractures that later healed, appear to contaminate C 3 H 8 as well

  20. Sulphate record from a northeast Greenland ice core over the last 1200 years based on continuous flow analysis

    E-Print Network [OSTI]

    Fischer, Hubertus

    distribution of heat, salt, and moisture, potentially driving climatic change on regional to global scales; Moran et al., 2006). In 2004, the first Integrated Ocean Drilling Program expedition to the Lomonosov

  1. Feasibility of reconstructing paleoatmospheric records of selected alkanes, methyl halides, and sulfur gases from Greenland ice cores

    E-Print Network [OSTI]

    Aydin, M.; Williams, M. B; Saltzman, E. S

    2007-01-01T23:59:59.000Z

    study of ethane and propane oxidation in the tropo- sphere,alkanes (ethane, C 2 H 6 ; propane, C 3 H 8 ; n-butane, n-Cfluid contamination. 4.1.2. Propane [ 24 ] Propane levels in

  2. Airborne UHF Radar for Fine Resolution Mapping of Near Surface Accumulation Layers in Greenland and West Antarctica

    E-Print Network [OSTI]

    Lewis, Cameron Scott

    2010-11-01T23:59:59.000Z

    ). .................................................................................................................................................................................. 98 FIGURE 83. SCREENSHOT OF ADS LINECALC SOLUTION FOR 40 MIL WIDTH MICROSTRIP. .............................................................. 105 FIGURE 84. TRACE OVER-ETCH CROSS-SECTION [36...

  3. Laboratory Experiments on the Interaction of a Buoyant Coastal Current with a Canyon: Application to the East Greenland Current

    E-Print Network [OSTI]

    Sutherland, David A.

    This paper presents a set of laboratory experiments focused on how a buoyant coastal current flowing over a sloping bottom interacts with a canyon and what controls the separation, if any, of the current from the upstream ...

  4. SocialAffairs E c o n o m i c &

    E-Print Network [OSTI]

    Kammen, Daniel M.

    SocialAffairs E c o n o m i c & #12;Road Map on Building a Green Economy for Sustainable and Export Development of Grenada. The completion of this first Road Map on Building A Green Economy project being conducted by the DSD on "Integrating Climate Change into National Sustainable Development

  5. Brandeis University Massachusetts

    E-Print Network [OSTI]

    Fraden, Seth

    for Nyanga schools Key Dilemmas x What is my connection to Black South Africans as a Black American outsider Northern Ireland Grenada South Africa The International Center for Ethics, Justice & Public Life #12 to do integrated course work and field work related to coexistence and issues of ethics and social

  6. NOTES AND NEWS 537 FIRST RECORD OF SESARMA RECTUM RANDALL (BRACHYURA,

    E-Print Network [OSTI]

    Schubart, Christoph

    for females from Surinam. In Brazil (state of S~ao Paulo), the smallest ovigerous female reached 18.8 mm cw the populations. The nding of Sesarma rectum in Grenada represents an important range ex- tension for this species) and could explain a partial isolation of the Grenadian population of S. rectum from the South American

  7. Table A: Countries grouped on the basis of their 2004 Human Development Index score. Countries of birth groups Countries of birth

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    Paris-Sud XI, Université de

    , Grenada, the Bahamas, Surinam, Dominique, Saint Lucie, New Zealand, East Samoa, Fiji, Mexico. Low HDI.socscimed.2012.01.002 #12;Table B: Relative risk of mortality for foreign-born populations relative to the locally-born population by specific causes of death and gender (years 2004-2007) Violent death Infectious

  8. SIT Workshops 1995 2011 Page 1 of 17

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    Gaithersburg, MD General Standards and Conformity Assessment Bolivia Colombia Ecuador Peru Venezuela 8. US and improving national standards information distribution. Argentina Brazil Bolivia Chile Costa Rica Ecuador El Barbados Belize Bolivia Chile Colombia Costa Rica Dominica Ecuador El Salvador Grenada Guatemala Guyana

  9. The Development of Instrumentation and Methods for Measurement of Air-Sea Interaction and Coastal Processes from Manned and Unmanned Aircraft /

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    Reineman, Benjamin D.

    2013-01-01T23:59:59.000Z

    survey of Glaciar Tyndall, Patagonia. Global and Planetarystudies in Greenland and Patagonia in Twin Otters (Forsberg

  10. L'Amrique latine ou les Amriques latines Georges Couffignal

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , le Suriname, la Guyane, la Jamaïque, la Guadeloupe, la Martinique et les mini ?tats de la Caraïbe. Au pays andins, populations parfois presque exclusivement d'origine européenne et populations métisses ou

  11. Session: Geothermal Research Volcanology Oral presentation

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    Boyer, Edmond

    Session: Geothermal Research Volcanology Oral presentation Contribution of multi-methods geophysics to improve the regional knowledge of Bouillante geothermal Province (Guadeloupe) Lydie Gailler1.gailler@brgm.fr The need to understand the geological context of the Bouillante geothermal Province (Basse- Terre

  12. PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 31 -February 2, 2011

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    Stanford University

    , Stanford, California, January 31 - February 2, 2011 SGP-TR-191 A CONCEPTUAL MODEL FOR GEOTHERMAL ENERGY of the Caribbean islands have great potential for Geothermal Energy. These islands have been formed partially for geothermal energy. The only operating geothermal plant in the Caribbean is at Bouillante in Guadeloupe

  13. LEIOCEPHALIDAE 1989 Leiocephalinae Frost and Etheridge, Misc. Publ. Mus. Nat. Hist. Univ.

    E-Print Network [OSTI]

    , Hispaniola, Navassa, and Martinique. Recently extinct species were found on Barbuda and Antigua, Anguilla, Guadeloupe, Hispaniola, Puerto Rico, and Jamaica. Leiocephalus Gray 1827 Leiocephalus Gray, Philos. Mag, 84: 1. Range: Cuba and nearby islands, the Cayman Islands, the Bahama Islands, Hispaniola

  14. Does increased red blood cell deformability raise the risk for osteonecrosis in sickle cell Nathalie Lemonne1

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Pointe--Pitre, 97157 Pointe--Pitre, Guadeloupe Running head: Avascular necrosis and sickle cell anemia in sickle cell anemia (SCA) remains unknown. Blood hyper-viscosity has been suggested as a factor involved1 Does increased red blood cell deformability raise the risk for osteonecrosis in sickle cell

  15. Decreased Hematocrit-To-Viscosity Ratio and Increased Lactate Dehydrogenase Level in Patients with Sickle Cell

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    with Sickle Cell Anemia and Recurrent Leg Ulcers Philippe Connes1,2,3* , Yann Lamarre1,2 , Marie--Pitre, Guadeloupe Abstract Leg ulcer is a disabling complication in patients with sickle cell anemia (SCA Dehydrogenase Level in Patients with Sickle Cell Anemia and Recurrent Leg Ulcers. PLoS ONE 8(11): e79680. doi:10

  16. Modlisation et potentialits du chauffage solaire des sols par paillage artificiel la Guade-

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    different mulches (black plastic, clear plastic and glass) showed that daily maximum temperatures could Modelling and potential of soil heating by application of an artificial mulch in Guadeloupe. Solarization consists of soil heating by application of an artificial mulch. High temperatures can be reached which

  17. Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010

    E-Print Network [OSTI]

    Boyer, Edmond

    Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 1 Assessment of the Bouillante Geothermal Field (Guadeloupe, French West Indies): Toward a Conceptual Model of the High Temperature Geothermal System V. Bouchot*, B. Sanjuan*, H. Traineau**, L. Guillou-Frottier*, I. Thinon*, J

  18. Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 1 Monitoring of the Bouillante Geothermal Exploitation (Guadeloupe, French West Indies) and the Impact on Its Immediate6009 - 45060 ORLEANS Cedex 2, France b.sanjuan@brgm.fr Keywords: Bouillante, geothermal field

  19. GEOPHYSICAL RESEARCH LETTERS, VOL. 25, NO. 21, PAGES 3951-3954, NOVEMBER 1, 1998 Present-day uplift patterns over Greenland from

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    Huybrechts, Philippe

    temperature and melting. Pre- vious studies [Le Meur and Huybrechts, 1996; Tarasov and Peltier, 1997] show how Meur, 1996b; Peltier, 1974; Wu and Peltier, 1982; Spada et al., 1992] with a 3-D thermomechanical ice [Peltier, 1974; Wu and Peltier, 1982; Lam- beck et al., 1990; Spada et al., 1992]. Following the work

  20. Are seasonal calving dynamics forced by buttressing from ice mlange or undercutting by melting? Outcomes from full-Stokes simulations of Store Gletscher, West Greenland

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    Todd, J.; Christo?ersen, P.

    2014-07-02T23:59:59.000Z

    ), suggesting that fjord topography may play an important role in calving dynamics. In terms of climate, data from the Regional Atmospheric Climate Model (RACMO) suggest that ?2 km3 of meltwater forms on the surface of Store between June and15 August (Ettema et... ; Rignot and Kanagaratnam, 2006; Howat et al., 2007), raising con- cerns about its future response to changing global climate and the impact this might have on global sea level. The two factors, which govern this loss, are (1) an overall neg- ative surface...

  1. Isotopic tracing (Sr, Nd, U and Hf) of continental and marine aerosols in an 18th century section of the Dye-3 ice core (Greenland)

    E-Print Network [OSTI]

    Stocker, Thomas

    sea salts strontium neodymium hafnium uranium Determining the sources and pathways of atmospheric and 234 U/238 U activity ratios close to seawater. Nd variations are significant (N6 units) and are decoupled from dust composition, indicating that the Nd composition of seawater is preserved in the ice

  2. Slow retreat of a land based sector of the West Greenland Ice Sheet during the Holocene Thermal Maximum: evidence from threshold

    E-Print Network [OSTI]

    Briner, Jason P.

    of Geology and Mineral Resources Engineering, Norwegian University of Science and Technology, Sem Særlands to the influence of melt water on global sea level rise and potentially on large-scale ocean circulation and thus the global climate system in general (e.g. Alley et al., 2005, 2010; IPCC, 2007). Recent instrumental data

  3. Determining Greenland Ice Sheet sensitivity to regional climate change: one-way coupling of a 3-D thermo-mechanical ice sheet model with a mesoscale climate model

    E-Print Network [OSTI]

    Schlegel, Nicole-Jeanne

    2011-01-01T23:59:59.000Z

    ice sheet model with a mesoscale climate model By Nicole-ice sheet model with a mesoscale climate model Copyrightice sheet model with a mesoscale climate model by Nicole-

  4. act era proceedings: Topics by E-print Network

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

    from Greenland ice sheet accumulation: An ERA40 study M. A the Greenland Ice Sheet (GrIS) and large scale circulation patterns, cyclone frequency, and strength. Four climate...

  5. alloys sheet processed: Topics by E-print Network

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

    DiscussionPaper|DiscussionPaper| Abstract The influence of a reduced Greenland ice sheet (GrIS) on Greenland's surface climate during the Eemian interglacial is studied using a...

  6. american selected papers: Topics by E-print Network

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

    DiscussionPaper|DiscussionPaper| Abstract The influence of a reduced Greenland ice sheet (GrIS) on Greenland's surface climate during the Eemian interglacial is studied using a...

  7. Climate Change and National Security

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    Alyson, Fleming; Summer, Kelly; Summer, Martin; Lauren, Franck; Jonathan, Mark

    2015-01-01T23:59:59.000Z

    Global surface warming (0C) Assumes that the GHG concentration is stabilized at 2000 levelswarming over a long period would melt all of Greenlands ice sheet, raising the global sea level

  8. PreOccupied Territories: Polar Landscapes in the Cinema

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    Carpenter, Emily Catherine

    2011-01-01T23:59:59.000Z

    them safely from the pack ice. This image dramatizes athe ship arrives at the ice pack surrounding the Greenlandic

  9. Effect of ocean temperature on southwestern U.S. climate analyzed

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    Environmental Visualization Laboratory depicts sea surface temperatures around Greenland from October 2010. Image from National Oceanic and Atmospheric Administration's...

  10. Winter 2010 in Europe: A cold extreme in a warming climate J. Cattiaux,1

    E-Print Network [OSTI]

    Codron, Francis

    by a mean warm anomaly at global scale, especially over Greenland, Canada, North Africa and Middle East (see

  11. Prog.Oceanog.Vol. 27, pp. 365-402, 1991. 0079 -6611/91 $0.00 + _50 Printed in Great Britain. All rights reset,ted. 1991 Pca~-.,.omt Press pie

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    Stevens, David

    . To the west along the Greenland coast there is a strong current of cold fresh water, the East Greenland rights reset,ted. 1991 Pca~-.,.omt Press pie A numerical ocean circulation model of the Norwegian - The dynamics and thermodynamics of the Norwegian and Greenland Seas are investigatedusing a three

  12. Analysis of glacial earthquakes Victor C. Tsai1

    E-Print Network [OSTI]

    Tsai, Victor C.

    , the events cluster into seven regions, all of which correspond to regions of very high ice flow and most, Helheim Glacier, the southeast Greenland glaciers, the northwest Greenland glaciers, Rinks Isbrae that both the Greenland and Antarctic ice sheets are drained by narrow but fast moving features known as ice

  13. Amrique latine et Carabes

    E-Print Network [OSTI]

    26 Amérique latine et Caraïbes La région Amérique latine et Caraïbes abrite une population d dernières années (le taux de pauvreté extrême est passé de 12 % de la population en 1990 à 5 % en 2012 selon P?ROU ?QUATEUR COLOMBIE VENEZUELA GUYANA SURINAME GUYANE FRAN?AISE MEXIQUE MARTINIQUE GUADELOUPE SAINT

  14. Grencubator. Ukrainian energy innovation network | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/ExplorationGoods | Open EnergyGreenrockGreenwoodGrenada:

  15. acid levels contribute: Topics by E-print Network

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

    sea level by 7 m. Keywords: sea level; ice sheet; Greenland; Antarctica; climate change 1 Huybrechts, Philippe 7 Contribution of the Active Site Histidine Residues of...

  16. anoxic freshwater sediments: Topics by E-print Network

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

    sediment fluxes are dominated by increases in tidally averaged SSC and flow. Runoff and wind Talke, Stefan 62 Long chain alkenones in Greenland lake sediments: C values and...

  17. arctic freshwater sediments: Topics by E-print Network

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

    sediment fluxes are dominated by increases in tidally averaged SSC and flow. Runoff and wind Talke, Stefan 150 Long chain alkenones in Greenland lake sediments: C values and...

  18. Ice sheets

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    Bentley, Charles G.; Thomas, Robert H.; Velicogna, Isabella

    2007-01-01T23:59:59.000Z

    is eroding West Antarctic Ice Sheet. Geophysical Researchand Yungel, J. (2000). Greenland Ice Sheet: High-Elevation2004). The west Antarctic ice sheet and long term climate

  19. c811 D103.33:216 DateReq: 3/8/2004 5 Yes

    E-Print Network [OSTI]

    Apr 7, 2004 ... Article: Smith, J. L.: The elastic constants, strength and density of Greenland snow as determined from measurements of sonic wave velocity.

  20. The influence of small stresses on the dynamics of glaciers and subduction zones

    E-Print Network [OSTI]

    Walter, Jacob Ineman

    2012-01-01T23:59:59.000Z

    the dynamics of calving glaciers, Earth Sciences Reviews,separation and sliding at the glacier bed, J. Glaciol. , 29(acceleration of Helheim Glacier, east Greenland, Geophys.

  1. america modis landcover: Topics by E-print Network

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

    65 Constraining MODIS snow albedo at large solar zenith angles: Implications for surface energy budget in Greenland Geosciences Websites Summary: latitudes is crucial for climate...

  2. Probing Fukushima with cosmic rays should help speed cleanup...

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    cancer, anemia gleaned from ribosome research Complex systems influence melting of Greenland ice sheet Related Articles All Stories Rocket flight test at the Energetic Materials...

  3. NERSC Supercomputers Help Explain the Last Big Freeze

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    Arctic, where ocean currents would have transported it to the North Atlantic (near Greenland), allowing it to disrupt the ocean's heat engine. "With 18 kilometers between each...

  4. Los Alamos laser selected for 2020 Mars mission

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  5. Sandia National Laboratories: DOE-BER

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    Model. The land ice component is responsible for simulating the evolution of the Greenland and Antarctic ... Last Updated: May 21, 2014 Go To Top Exceptional service in...

  6. Hydrodynamic experiment provides key data for Stockpile Stewardship

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    cancer, anemia gleaned from ribosome research Complex systems influence melting of Greenland ice sheet Related Articles All Stories This is a time-lapse photograph of the Cosmic...

  7. World's largest single crystal of gold verified by Los Alamos...

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    Model. The land ice component is responsible for simulating the evolution of the Greenland and Antarctic ... New Polarized-Depolarized Measurement Capability Extends Use of...

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    Model. The land ice component is responsible for simulating the evolution of the Greenland and Antarctic ... Sandian Invited to Speak at "Addressing the Food, Water, and...

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    Model. The land ice component is responsible for simulating the evolution of the Greenland and Antarctic ... Sandia, the Atlantic Council, and NM Water Resource Research...

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  12. Dark spaces could change the way we think about galaxies

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  13. Integrated Geochronologic, Geochemical, and Sedimentological Investigation of Proterozoic-Early Paleozoic Strata: From Northern India to Global Perspectives

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    McKenzie, Neil Ryan

    2012-01-01T23:59:59.000Z

    composition of sourcerock. Large populations of assess sediment source relationships among rocks of rocks, eastern Greenland: Implications for recognizing the sources

  14. By simulating biogeochemical cycles, the Greenland ice sheet, and more--with reach to the lower thermosphere--this system gives the research community a flexible, state-of-the-

    E-Print Network [OSTI]

    climate variability and change. THE COMMUNITY EARTH SYSTEM MODEL A Framework for Collaborative Research in the CCSM4/CESM1 (version 1.0 of the Community Earth System Model) special collection of the Journal processes must be represented before a climate model becomes an Earth system model (ESM), but typically

  15. Using ice cores from the East Antarctic Ice Sheet, scientists have been able to study

    E-Print Network [OSTI]

    Using ice cores from the East Antarctic Ice Sheet, scientists have been able to study ice's ice sheets. Ice sheets are huge areas of permanent ice. There are only three ice sheets on Earth: the Greenland Ice Sheet, the West Antarctic Ice Sheet, and the East Antarctic Ice Sheet. The Greenland Ice Sheet

  16. OCEANUS 19 Michael S. McCartney

    E-Print Network [OSTI]

    McCartney, Michael S.

    of the Gulf Stream off the East Coast of the United States, these waters are exposed to vigorous cooling 70N 80N 60E 30E 30W 60W GREENLAND IRELAND Norwegian Sea Greenland Sea Norwegian Cu rrent North Water, which flows back to the subtropical gyre in the west as an intermediate depth current (yellow

  17. Marine and Petroleum Geology 24 (2007) 5366 An improved tectonic model for the Eocene opening of the

    E-Print Network [OSTI]

    Torsvik, Trond Helge

    2007-01-01T23:59:59.000Z

    from the Vring Marginal High on the Norwegian margin to Traill on the East Greenland coast of the NorwegianGreenland Sea: Use of modern magnetic data O. Olesena,, J. Ebbinga , E. Lundina,1 , E. Mauringa Hydro ASA, Storakeren 11, N-9411 Harstad, Norway e Norwegian Petroleum Directorate, Professor Olav

  18. -density set by salinity -non-linear equation of state

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Dickson, CEFAS Changes in Arctic Climate are related to the Arctic Oscillation (AO) From D.Thompson, based A CHALLENGE TO MEASURE 80N Greenland Russia Alaska Lom onosov Ridge Mendeleev Ridge Nansen-Gakkel R Eurasian 80N Greenland Russia Alaska Lom onosov Ridge Mendeleev Ridge Nansen-Gakkel R Eurasian Basin Canadian

  19. 1302 VOLUME 16J O U R N A L O F C L I M A T E 2003 American Meteorological Society

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    Box, Jason E.

    of Greenland Ice Sheet Surface Climate in the HIRHAM Regional Climate Model Using Automatic Weather Station Data JASON E. BOX Byrd Polar Research Center, The Ohio State University, Columbus, Ohio ANNETTE RINKE of Greenland ice sheet surface climate are made with the 0.5 -horizontal resolution HIRHAM regional climate

  20. STATE OF THE CLIMATE Jessica Blunden Derek S. Arndt

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    and ice caps (outside Greenland); Greenland Ice Sheet; Permafrost; Lake ice; Sea ice; Ocean; and Ocean. Conversely, penetration of Arctic air masses into northern and eastern Europe in autumn 2010 and spring 2011 sectors of the Arctic Basin, upper ocean temperatures in summer 2011 were generally warmer than

  1. Saunders, A.D., Larsen, H.C., and Wise, S.W., Jr. (Eds.), 1998 Proceedings of the Ocean Drilling Program, Scientific Results, Vol. 152

    E-Print Network [OSTI]

    Saunders, A.D., Larsen, H.C., and Wise, S.W., Jr. (Eds.), 1998 Proceedings of the Ocean Drilling During Ocean Drilling Program Leg 152, Sites 914 through 919 were drilled on the southeast Greenland of the Iceland hot-spot track (Iceland- Greenland Ridge). Sites 915 through 918 penetrated the entire cover

  2. SOME CHILLING CONSIDERATIONS ABOUT GLOBAL WARMING

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    of Arizona #12;Weiss and Overpeck, University of Arizona #12;MELTING OF GREENLAND ICE CAP Satellite Complete melt of the Greenland ice sheet would raise the level of the global ocean 7 meters. #12 thousand years Polar ice cores #12;GREENHOUSE GAS FORCING AND CHANGE IN GLOBAL MEAN SURFACE TEMPERATURE

  3. Patchogue, New York February 25, 2009

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    , University of Arizona #12;MELTING OF GREENLAND ICE CAP Satellite determination of extent of glacial melt 1992 vs 2002 4002,egdirbmaC,tnemssessAtcapmIetamilCcitcrA Complete melt of the Greenland ice sheet would Polar ice cores #12;GREENHOUSE GAS FORCING AND CHANGE IN GLOBAL MEAN SURFACE TEMPERATURE 1855-2004 -0

  4. Simulating Arctic Climate Warmth and Icefield Retreat in the

    E-Print Network [OSTI]

    Inglfsson, lafur

    , 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

  5. doi: 10.1130/G32908.1 2012;40;627-630Geology

    E-Print Network [OSTI]

    Carlson, Anders

    and the effects of Greenland Ice Sheet (GIS) melting on climate over the coming millennium. While some climate., 2009). This sea-level highstand implies substantial melting of the Greenland Ice Sheet (GIS) (Northern the loss of Arctic glaciers and ice caps is included; Otto-Bliesner et al., 2006; Colville et al., 2011

  6. CHILLING CONSIDERATIONS GLOBAL WARMING

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    (millionsofsquarekilometers) 30 20 10 MELTING OF GREENLAND ICE CAP Satellite determination of maximum extent of glacial melt Complete melt of the Greenland ice sheet would raise the level of the global ocean 23 feet. ASAN Steffen IS INCREASING Global carbon dioxide concentration over the last thousand years Polar ice cores #12;Mann et al

  7. 1, 7797, 2007 Reconstructing the

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    expansion of ocean water, changes in terrestrial storage of water, melting of smaller ice caps and glaciers contribution' the contribution to sea-level change from all glaciers and ice caps outside the large ice sheets of Greenland and Antarctica. Included are the glaciers and ice caps on Greenland and Antarctica which

  8. Received 26 Aug 2013 | Accepted 22 Apr 2014 | Published 21 May 2014 Ice sheets as a significant source of highly

    E-Print Network [OSTI]

    Benning, Liane G.

    , but are rarely considered as active components of the global iron cycle. The ocean waters around both ice sheets, Katherine Lee1 & Jon Telling1 The Greenland and Antarctic Ice Sheets cover B10% of global land surface concentrations in subglacial runoff from a large Greenland Ice Sheet catchment reveal the potential for globally

  9. San Jose Accord: energy aid or petroleum-marketing strategy

    SciTech Connect (OSTI)

    Not Available

    1982-09-30T23:59:59.000Z

    The San Jose Accord was signed in San Jose, Costa Rica on August 3, 1980 by the Presidents of Venezuela and Mexico, whereby the two countries mutually committed to supply the net imported domestic oil consumption of several Central American and Caribbean countries. Countries initially participating in the program are: Barbados, Costa Rica, Dominican Republic, El Salvador, Guatemala, Honduras, Jamaica, Nicaragua, and Panama. Seven eastern Caribbean countries were to meet on October 7 to petition for inclusion in the Accord, namely: Antigua, St. Kitt/Nevis, Montserrat, Dominica, St. Lucia, St. Vincent, and Grenada. The official language of the Accord is presented, and the operative status of the Accord two years after signing is discussed. Specific briefs about some of the individual countries in the Accord are included. The fuel price/tax series for the Western Hemisphere countries is updated.

  10. Time-variable gravity observations of ice sheet mass balance: Precision and limitations of the GRACE satellite data

    E-Print Network [OSTI]

    Velicogna, I.; Wahr, J.

    2013-01-01T23:59:59.000Z

    observations, Science, 314, Peltier, W. R. (2004), Globalice history models (ICE5G [Peltier, 2004] and Fleming andfor Greenland; ICE5G [Peltier, 2004] and IJ05 [Ivins and

  11. 1 JANUARY 2004 21T O N I A Z Z O E T A L . 2004 American Meteorological Society

    E-Print Network [OSTI]

    Huybrechts, Philippe

    with preindustrial atmospheric greenhouse gas composition and with the Greenland ice sheet removed. Two separate pressure center that forces cyclone systems (and hence precipitation) to skirt along its sides with little

  12. 90E 120 150E 180 150W 120 90 60 30W 0 30E 60 DSDP Legs 196 ( ), ODP Legs 100210 ( ), IODP Expeditions 301352 ( )

    E-Print Network [OSTI]

    GREENLAND EUROPE AFRICA SOUTH AMERICA NORTH AMERICA ASIA AUSTRALIA ANTARCTICA INDIAN OCEAN PACIFIC ASIA AUSTRALIA ANTARCTICA INDIAN OCEAN PACIFIC OCEAN ATLANTIC OCEAN ARCTIC OCEAN SOUTHERN OCEAN AMERICA NORTH AMERICA ASIA AUSTRALIA ANTARCTICA INDIAN OCEAN PACIFIC OCEAN ATLANTIC OCEAN ARCTIC OCEAN

  13. Investigation of Glacial Dynamics in the Lambert Glacier-Amery Ice Shelf System (LAS) Using Remote Sensing

    E-Print Network [OSTI]

    Chi, Zhaohui 1982-

    2012-12-10T23:59:59.000Z

    Numerous recent studies have documented dynamic changes in the behaviors of large marine-terminating outlet glaciers and ice streams in Greenland, the Antarctic Peninsula, and West Antarctica. However, fewer observations of outlet glaciers and ice...

  14. URANIUM IN ALKALINE ROCKS

    E-Print Network [OSTI]

    Murphy, M.

    2011-01-01T23:59:59.000Z

    Greenland," in Uranium Exploration Geology, Int. AtomicMigration of Uranium and ThoriumExploration Significance,"interesting for future uranium exploration. The c r i t e r

  15. RIS-M-2529 LIST OF SELECTED PUBLICATIONS 1983

    E-Print Network [OSTI]

    , 1983) 42 pp. Armour-Brown, A., A. Steenfelt, and H. Kunzendorf, Uranium Districts Defined by Reconnaissance Geochemistry in South Greenland. J. Geochem. Explor. _1 (1983) 127-145. Armstrong, R. J., A

  16. Multi-parameter estimation in glacier models with adjoint and algorithmic differentiation

    E-Print Network [OSTI]

    Davis, Andrew D. (Andrew Donaldson)

    2012-01-01T23:59:59.000Z

    The cryosphere is comprised of about 33 million km of ice, which corresponds to 70 meters of global mean sea level equivalent [30]. Simulating continental ice masses, such as the Antarctic or Greenland Ice Sheets, requires ...

  17. Circulation and convection in the Irminger Sea

    E-Print Network [OSTI]

    Vge, Kjetil

    2010-01-01T23:59:59.000Z

    Aspects of the circulation and convection in the Irminger Sea are investigated using a variety of in-situ, satellite, and atmospheric reanalysis products. Westerly Greenland tip jet events are intense, small-scale wind ...

  18. A r c t i c Barents Sea

    E-Print Network [OSTI]

    Martin, Jeff

    Ri Vychegda R U S S I AC A N A D A U.K.IRE. ICELAND NORWAY SWEDEN FINLAND LATVIA LITH. BELARUS UKRAINE POLAND DENMARK GERMANY EST. KAZ. JAPAN (DENMARK) Greenland (NORWAY) Svalbard (NORWAY) (NORWAY) CHINA UNITED

  19. E-Print Network 3.0 - acquisition regime radar Sample Search...

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

    except the data acquisition system and the controller unit... A New Coherent Radar for Ice Sounding in Greenland A. Moussessian 1 , R.L. Jordan 1 , E. Rodriguez... : (818)...

  20. LANL

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

    lost during the rise-240 gigatons, or roughly the amount that melts from the entire Greenland ice sheet each year. 6 1663 January 2015 At the same time, the Colorado River-which...

  1. Sandia National Laboratories: Ice-Sheet Simulation Code Matures...

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

    Research & Capabilities Ice-flow velocity magnitude myr on the surface of the Greenland Ice Sheet, as computed by the AlbanyFELIX finite element code. Ice-flow velocity...

  2. Controversies Regarding the Holocene Sea-Level History of the Northwestern Gulf of Mexico

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    islands, deltas, etc. Glacio-Hydro-Isostatic Models Rheology wrong? Ice sheet ½ size of Greenland grew and Rink, 2008 #12;Winds #12;Wind and Sedimentation Troiani, Simms, et al., in press #12;Paleowinds Troiani

  3. Evolution of the Earth's mantle-crust-atmosphere system from the trace element and isotope geochemistry of the plume-mantle reservoir

    E-Print Network [OSTI]

    Starkey, Natalie

    2009-11-26T23:59:59.000Z

    The 62 million year old lava flows of Baffin Island and West Greenland represent the earliest phase of magmatism in the North Atlantic Igneous Province (NAIP). These picritic lavas are characterised by high magnesium ...

  4. Wind-driven circulation on a shallow, stratified shelf

    E-Print Network [OSTI]

    Austin, Jay Alan

    1999-01-01T23:59:59.000Z

    A detailed examination of the development of a deep convection event observed in the Greenland Sea in 1988-89 is carried out through a combination of modeling, scale estimates, and data analysis. We develop a prognostic ...

  5. Parental magma of the Skaergaard intrusion: constraints from melt inclusions in primitive troctolite blocks and FG-1 dykes

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    Developments in petrology 15. Elsevier, Amsterdam McBirneyin East Greenland, Part III. The petrology of the Skaergaard441477 Hoover JD (1989b) Petrology of the marginal border

  6. Ancient human genome sequence of an extinct Palaeo-Eskimo

    E-Print Network [OSTI]

    Rasmussen, Morten; Li, Yingrui; Lindgreen, Stinus; Pedersen, Jakob Skou; Albrechtsen, Anders; Moltke, Ida; Metspalu, Mait; Metspalu, Ene; Kivisild, Toomas; Gupta, Ramneek; Bertalan, Marcelo; Nielsen, Kasper; Gilbert, M. Thomas P.; Wang, Yong; Raghavan, Maanasa; Campos, Paula F.; Kamp, Hanne Munkholm; Wilson, Andrew S.; Gledhill, Andrew; Tridico, Silvana; Bunce, Michael; Lorenzen, Eline D.; Binladen, Jonas; Guo, Xiaosen; Zhao, Jing; Zhang, Xiuqing; Zhang, Hao; Li, Zhuo; Chen, Minfeng; Orlando, Ludovic; Kristiansen, Karsten; Bak, Mads; Tommerup, Niels; Bendixen, Christian; Pierre, Tracey L.; Gronnow, Bjarne; Meldgaard, Morten; Andreasen, Claus; Fedorova, Sardana A.; Osipova, Ludmila P.; Higham, Thomas F. G.; Ramsey, Christopher Bronk; Hansen, Thomas v. O.; Nielsen, Finn C.; Crawford, Michael H.; Brunak, Soren; Sicheritz-Ponten, Thomas; Villems, Richard; Nielsen, Rasmus; Krogh, Anders; Wang, Jun; Willerslev, Eske

    2010-02-11T23:59:59.000Z

    We report here the genome sequence of an ancient human. Obtained from ?4,000-year-old permafrost-preserved hair, the genome represents a male individual from the first known culture to settle in Greenland. Sequenced to an ...

  7. Upton, Long Island, New York April 4, 2011

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    Increase Mote et al., 2005 #12;MELTING OF GREENLAND ICE CAP Satellite determination of maximum extent of glacial melt Complete melt of the Greenland ice sheet would raise the level of the global ocean 23 feet thousand years Polar ice cores #12;GLOBAL ANNUAL TEMPERATURE ANOMALY, 1880-2010 0.8 0.6 0.4 0.2 0.0 -0.2 -0

  8. Bringing simulation to implementation: Presentation of a global approach in the design of passive solar buildings under humid tropical climates

    E-Print Network [OSTI]

    Garde, Franois; Celaire, Robert

    2012-01-01T23:59:59.000Z

    In early 1995, a DSM pilot initiative has been launched in the French islands of Guadeloupe and Reunion through a partnership between several public and private partners (the French Public Utility EDF, the University of Reunion Island, low cost housing companies, architects, energy consultants, etc...) to set up standards to improve thermal design of new residential buildings in tropical climates. This partnership led to defining optimized bio-climatic urban planning and architectural designs featuring the use of passive cooling architectural principles (solar shading, natural ventilation) and components, as well as energy efficient systems and technologies. The design and sizing of each architectural component on internal thermal comfort in building has been assessed with a validated thermal and airflow building simulation software (CODYRUN). These technical specifications have been edited in a reference document which has been used to build over 300 new pilot dwellings through the years 1996-1998 in Reunion...

  9. The response of Petermann Glacier to large calving events and its future stability in the context of atmospheric and oceanic warming

    E-Print Network [OSTI]

    van der Veen, Cornelis J.; Nick, F. M.; Luckman, A.; Vieli, A.; Van As, D.; Van De Wal, R.S.W.; Pattyn, F.; Hubbard, A. L.; Floricioiu, D.

    2012-11-05T23:59:59.000Z

    The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming F.M. NICK,1,2 A. LUCKMAN,3 A. VIELI,4 C.J. VAN DER VEEN,5 D. VAN AS,6 R.S.W. VAN DE WAL,1 F. PATTYN,2 A... 2010 calving event on the current and future stability of Petermann Glacier, Greenland, and ascertains the glaciers interaction with different components of the climate and ocean system. We use a numerical ice-flow model that captures the major aspects...

  10. www.sciencemag.org/cgi/content/full/324/5926/506/DC1 Supporting Online Material for

    E-Print Network [OSTI]

    Severinghaus, Jeffrey P.

    Measurements in Greenland Ice: Investigating Last Glacial Termination CH4 Sources Vasilii V. Petrenko,* Andrew Online Material Materials and Methods M1. The Pakitsoq ice-margin site, sample collection and 14 CH4 that ice flow and ablation expose a full last glacial termination sequence at the Pakitsoq site (S1

  11. Gravity Recovery And Climate Experiment Hydrology, Earth Science and Climate

    E-Print Network [OSTI]

    Mosegaard, Klaus

    · GRACE and Geophysics ­ 2004 Sumatra Earthquake · GRACE and Climate Change ­ East Greenland Melting ­ Observe changes with unprecidented accuracy GRACE can not discriminate between sources/causes Water: Atmosphere (Transport of water, pressure) Climate (Glaciers, Ice mass melting -> Run off) Hydrology

  12. Assessing the catastrophic break up of Briksdalsbreen, Norway,1 associated with rapid climate change.2

    E-Print Network [OSTI]

    Southampton, University of

    about the potential influence of rapid climate change13 on the stability of major ice sheets retreat of Greenland's tidewater glaciers.32 33 Introduction34 The response of glaciers to climate change1 Assessing the catastrophic break up of Briksdalsbreen, Norway,1 associated with rapid climate

  13. 701xml UCMG_A_385772 May 5, 2009 9:51 Coastal Management, 37:138, 2009

    E-Print Network [OSTI]

    Firestone, Jeremy

    global warming the most important29 environmental issue, symbolized by the melting of sea-ice in the Arctic Ocean and ac-30 celerating loss of the Greenland ice sheet. Global warming has thus become or electricity. Strong and growing demand strains existing energy25 infrastructure, congesting transmission

  14. The Cryosphere, 6, 119, 2012 www.the-cryosphere.net/6/1/2012/

    E-Print Network [OSTI]

    Box, Jason E.

    Sciences, University of Colorado, Boulder, CO, USA 6The City University of New York, New York, NY, USA 7, ab- sorbed solar energy, modulated at the surface primarily by albedo, is the dominant factor of warming. 1 Introduction Greenland ice sheet mass balance fluctuations exert an im- portant influence

  15. National Environmental Research Institute Ministry of the Environment

    E-Print Network [OSTI]

    inventories are based on improved LTO/aircraft type statis- tics. A time series of fuel use from 1985 to 2000 transportation are also discussed. Keywords: Aircraft, Fuel use inventory, Energy statistics, Denmark, Greenland inventories 15 2.3 Refinement procedure for domestic/international fuel split 15 2.3.1 Refining LTO fuel use

  16. Kansas City, Kansas Robert Roseen, PhD, PE, D.WRE,

    E-Print Network [OSTI]

    of combining Gray and Green Infrastructure are many and include Reduction of energy usage costs for heating Commercial, Greenland, NH "Gold-Star" Commercial Development Cost of doing business near Impaired Waters England Green Infrastructure Cost and Maintenance LID Workshop Monday December 6, 2010 Pratt Institute #12

  17. Gas ageice age differences and the chronology of the Vostok ice core, M. L. Bender,1

    E-Print Network [OSTI]

    Chappellaz, Jrme

    Gas ageice age differences and the chronology of the Vostok ice core, 0100 ka M. L. Bender,1 G. [1] Gas is trapped in polar ice at depths of $50120 m and is therefore significantly younger than cores (Vostok, Dome Fuji, and Dome C). We recorrelate the gas records of Vostok and Greenland Ice Sheet

  18. The Wicked Problem of Oil & Gas Development in the Beaufort and Chukchi Seas: Current Permitting and Evaluation of Marine Spatial Planning as a Potential Management Tool

    E-Print Network [OSTI]

    Johannes, Emilie Ann

    2014-06-02T23:59:59.000Z

    ....................................................................................... 28 Figure 8. International borders in the Arctic Ocean ......................................................... 41 Figure 9. Current Arctic Alaska OCS lease blocks by owners ........................................ 59 Figure 10. BOEM oil... collaboration among stakeholders with conflicting views and values with the goal of reaching consensus before projects move forward. The Arctic Council The Arctic countries of Canada, Denmark (through its autonomous province of Greenland), Norway, Russia...

  19. A realistic freshwater forcing protocol for ocean-coupled climate models J. van den Berk a,

    E-Print Network [OSTI]

    a b s t r a c t A high-end scenario of polar ice loss from the Greenland and Antarctic ice sheet is presented with sepa- rate projections for different mass-loss sites up to the year 2100. For each large ice through melt of drifting ice- bergs. The location and relative magnitude of freshwater forcing due

  20. Perceptions of Climate Change 27 March 2011

    E-Print Network [OSTI]

    Hansen, James E.

    Bay and Baffin Bay (between Canada and Greenland) were essentially ice-free, the first recorded time that ice-free conditions lasted so long. Ice-free water is a huge potential source of heat to the atmosphere. When the water is ice- covered the air above the ice can sink to 10 or 20C below zero, but ice

  1. Feasibility study for mapping the polar ice bottom topography using interferometric synthetic-aperture

    E-Print Network [OSTI]

    Kansas, University of

    interferometric synthetic-aperture radar processing for basal surface topography mapping of the thickest GreenlandFeasibility study for mapping the polar ice bottom topography using interferometric synthetic sheets. Ice bottom topography drives ice dynamics, which affects the mass balance. Accurate information

  2. Economics and LID Practices

    E-Print Network [OSTI]

    --for both construction budgets and project life-cycle costs. These economic benefits are increasingly being-competitive drainage system was designed for a large retail development in Greenland, NH. F A C T S H E E-based strategies by municipalities, commercial developers, and others. There are increasing numbers of case studies

  3. 2, 383397, 2008 Extreme surface melt

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    surface snowmelt over high elevations (above 2000 m) of the Greenland ice sheet during summer of 2007Pa atmospheric thick- ness, and the net surface energy flux, linked in turn to southerly airflow over the ice10 Scanning Multichannel Microwave Radiometer (SMMR, 1979­1987) and the Special Sensor Microwave/Imager (SSM

  4. 5 SEPTEMBER 2014 VOL 345 ISSUE 6201 1097SCIENCE sciencemag.org 5 SEPTEMBER 2014 VOLUME 345 ISSUE 6201

    E-Print Network [OSTI]

    Napp, Nils

    SHRINKS TROUBLED CENTER Japan's developmental biology powerhouse brought to knees by misconduct PERSPECTIVES 1116 GREENLAND DEGLACIATION PUZZLES Nitrogen isotope data help to resolve puzzling observations phenotype diversity needs to catch up with genomic data By D. Zamir REPORT P. 1181 1125 APPLYING SCIENTIFIC

  5. Rl*-M-2413 LIST OF SELECTED PUBLICATIONS 1982

    E-Print Network [OSTI]

    (and Province) in South Greenland. In: Proceedings of the Symposium on Uranium Exploration Methods-Ray Analyses. In: ~ oceedings of the Symposium on Uranium Exploration Methods. Review o the NEA/IAEA R & D. Tukiainen, B. Wallin, and A. Steenfelt, Reconnaissance Geochemistry: A Means of Defining Uranium Districts

  6. Ris Report No. 375 5 Ris National Laboratory

    E-Print Network [OSTI]

    Ris Report No. 375 o Z & C* 5 Ris National Laboratory Application of Geochemical ExplorationUlde, Denmark #12;INK Dociiptan [01 EXPLORATION GEOCHEMICAL SURVEYS GEOCHEMISTRY GREENLAND SAMPLING SEDIMENTS NEUTRON ANALYSIS URANIUM URANIUM MINERALS [JJ ABSORPTION SPECTROSCOPY COPPER LEAD VANADIUM ZINC UDC 550

  7. PII S0016-7037(02)01048-7 Sr investigation of igneous apatites and carbonates using laser-ablation

    E-Print Network [OSTI]

    Long, Bernard

    using laser-ablation MC-ICP-MS MARTIN BIZZARRO,1* ANTONIO SIMONETTI,1 R. K. STEVENSON,1 and STEPHAN, Greenland, have been determined by laser-ablation multicollector inductively coupled plasma mass 50% carbonate by volume, are ideally suited for laser-ablation (LA) studies be- cause

  8. Bringing food products into

    E-Print Network [OSTI]

    Anderson, Jim

    , Spain, Sweden and the UK For these purposes, EU countries also include Andorra, Canary Islands, The Channel Islands, The Isle of Man, Liechtenstein, Norway, San Marino, Switzerland (except for caviar where, the Faroe Islands, Greenland or Iceland, when you are allowed a combined weight of up to 10kg per person

  9. Sea-Level and Climate Change: Should I Sell My Shore House? Kenneth G. Miller,

    E-Print Network [OSTI]

    affects global sea level. The melting of mountain glaciers explains ~20% of the modern global rise. New sheets. Satellite data shows that Greenland and Antarctic glaciers are melting faster than previously is accelerating. The position of the shoreline is controlled by changes in global sea level, subsidence

  10. FW4 water and humans Peter Rhines

    E-Print Network [OSTI]

    University of Washington image: Petermann Glacier, NW Greenland Konrad Steffen #12;Surface salinity in the atmosphere: already visible IPCC 2007 #12;#12; yet the major frontal regions, jet streams and storm tracks by global warming The winds over S. America and the Southern Ocean have accelerated since 1970s

  11. Instruments and Methods Glacier velocities from time-lapse photos: technique development

    E-Print Network [OSTI]

    Box, Jason E.

    Instruments and Methods Glacier velocities from time-lapse photos: technique development and first West Greenland marine-terminating glaciers as part of the Extreme Ice Survey (EIS). EIS cameras began imaging the lowest 4 km2 of the glacier at hourly intervals throughout sunlit periods of the year

  12. Tide Model Accuracy in the Amundsen Sea, Antarctica, from InSAR Observations of Ice

    E-Print Network [OSTI]

    draining this region are out of balance; satellite records have documented glacier thinning, acceleration is currently losing ice mass at a rate comparable to that of the entire Greenland Ice Sheet. Glaciers the flow of ice is removed using a prediction derived from tracking features in SAR backscatter intensity

  13. Journal of Glaciology, Vol. 00, No. 000, 0000 1 Improving maps of ice sheet surface elevation change using1

    E-Print Network [OSTI]

    Howat, Ian M.

    and elevations changes over rapidly changing outlet glaciers in Greenland.11 Measurements from spaceborne and airborne laser altimeters have relatively low errors but12 are spatially limited to the ground tracks and ATM as well as SPOT 5 DEMs from 2007 and 2008 and apply19 it to the outlet glaciers Jakobshavn Isbr

  14. 386 nature geoscience | VOL 3 | JUNE 2010 | www.nature.com/naturegeoscience news & views

    E-Print Network [OSTI]

    Zeebe, Richard E.

    and late summer to an efficient, low-pressure drainage system of channels10 . Partial drainage of cavities under pressure into the channels reduces water storage and lowers the ice surface. As the ice interacts potentially lead to dynamic feedbacks that activate sliding over a larger portion of Greenland

  15. The Low-18O Late-Stage Ferrodiorite Magmas in the Skaergaard Intrusion: Result of Liquid Immiscibility, Thermal Metamorphism, or

    E-Print Network [OSTI]

    Bindeman, Ilya N.

    , Eugene, Oregon 97403, U.S.A. (e-mail: bindeman@uoregon.edu) A B S T R A C T We report new laser fluorination oxygen isotope analyses of selected samples throughout the Skaergaard intrusion in East Greenland of a higher-18 O, higher-SiO2 granophyric melt, thereby depleting the residual Fe-rich ferrodiorite magma

  16. RITZ@CLIMATE.UNIBE.CH [1] Mller et al., 2006, J. of Clim. 19, 5479-5499.

    E-Print Network [OSTI]

    Ritz, Stefan

    ] for the Norwegian west coast and from Bard et al., [1994] for the North Atl. (gray bars). Model yr 0 was pinned to reconstructions by Bondevik et al. [2006] from sediment cores from the Norwegian west coast [Ritz et al., 2008 and subsequent recovery of the Atlantic MOC (forced by freshwater perturbations into the Greenland-Iceland-Norwegian

  17. In pursuit of anomalies -Analyzing the poleward transport of Atlantic Water with surface drifters

    E-Print Network [OSTI]

    LaCasce, Joseph H.

    drifters released at or passing through the Sviny section, off the west coast of Norway. For comparison km and mix vigorously with interior waters in the Norwegian and Lofoten Basins. Thus an anomaly, comprising the Norwegian, Iceland and Greenland Seas (Figure 1a) is the transition zone for the warm, saline

  18. This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research

    E-Print Network [OSTI]

    Koszalka, Inga Monika

    section, off the west coast of Norway. For comparison, we generate a set of synthetic trajectories using spread over large distances, mixing with water in the Norwegian and Lofoten Basins. Thus an anomaly, comprising the Norwegian, Iceland and Greenland Seas (Fig. 1A) is the transition zone for the warm, saline

  19. In pursuit of anomalies--Analyzing the poleward transport of Atlantic Water with surface drifters

    E-Print Network [OSTI]

    LaCasce, Joseph H.

    . The drifters were released at or passed through the Sviny section, off the west coast of Norway large distances, mixing with water in the Norwegian and Lofoten Basins. Thus an anomaly entering, comprising the Norwegian, Iceland and Greenland Seas (Fig. 1A) is the transition zone for the warm, saline

  20. Research papers The genesis of sea level variability in the Barents Sea

    E-Print Network [OSTI]

    the Norwegian Atlantic Current (NwAC) splits into the West Spitsbergen Current that flows north towar (Norwegian, Iceland, Greenland seas) is explained by the annual mass-related changes. The analysis European coast and three archipelagoes--Spitsbergen, Franz Josef Land, and Novaya Zemlya (Fig. 1a

  1. The Caledonide Orogen in the Nordic countries is exposed in Norway, western Sweden, westernmost Fin-

    E-Print Network [OSTI]

    Fossen, Haakon

    The Caledonide Orogen in the Nordic countries is exposed in Norway, western Sweden, westernmost Fin-age basement. In northernmost Norway, the NE-trending Caledonian thrust front trun- cates the NW and north- eastern Greenland; it continues northwards from northern Norway, across the Barents Shelf

  2. Global Climate Change and Demand for Energy

    E-Print Network [OSTI]

    Subramanian, Venkat

    -CARES) Washington University in St. Louis #12;9 Jun Jul Aug Temperature Anomaly Distribution Frequency of air and water temperatures Losses of ice from Greenland and Antarctica Sea-level rise Energy demands 169 390 327 90 16 H2O, CO2, O3 Earth receives visible light from hot Sun and Earth radiates to space

  3. Influence of large-scale teleconnection patterns on methane sulfonate ice core records in Dronning Maud Land

    E-Print Network [OSTI]

    Fischer, Hubertus

    temperature difference. This salt-based storage of heat at depth is analogous to Convectively Available). First widely recognized as more than climatic ``noise'' by the drilling of two deep Greenland summit ice coherent pattern of climate in- stability. Broecker first proposed that a ``salt oscillator

  4. The Role of Stratification-Dependent Mixing for the Stability of the Atlantic Overturning in a Global Climate Model*

    E-Print Network [OSTI]

    Marzeion, Ben

    in a Global Climate Model* BEN MARZEION Nansen Environmental and Remote Sensing Center, and Bjerknes Centre oceanic heat transport. Subsequently, and in opposition to results from previous studies, the overturning, as seen, for example, in temperature reconstructions from Greenland ice cores, are often ex- plained

  5. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 37, NO. 3, MAY 1999 1671 Cryosphere Applications of NSCAT Data

    E-Print Network [OSTI]

    Long, David G.

    IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 37, NO. 3, MAY 1999 1671 Cryosphere covering Greenland and Antarctica add to the polar heat sink effect by their additional influence upon. Hence, monitoring of polar ice is of particular interest to the remote sensing and climate change

  6. Atmos. Chem. Phys., 13, 147164, 2013 www.atmos-chem-phys.net/13/147/2013/

    E-Print Network [OSTI]

    Ribatet, Mathieu

    for Analysis and Applications, EPF Lausanne, Lausanne, Switzerland 2Institute for Atmospheric and Climate "fingerprints" of atmospheric dynamics and chemistry on long-term ozone changes at northern and southern mid/Greenland, the North Atlantic sector and over the Norwegian Sea, but is reduced over Europe, Russia and the Eastern

  7. 20th-Century Industrial Black Carbon Emissions Altered Arctic Climate Forcing Joseph R. McConnell,

    E-Print Network [OSTI]

    Saltzman, Eric

    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

  8. SOLAS Denmark Denmark can proudly boast several

    E-Print Network [OSTI]

    Boersma, Folkert

    fluxes can be calculated from the dissipation technique utilising the inertial sub- range of the power in the Nuuk fjord this year and at Young Sound in 2012. These stations will be managed from the Greenland. Techniques using power spectra and cospectra are applied to estimate fluxes of momentum, sensible heat

  9. Excess in precipitation as a cause for settlement decline along the Israeli coastal plain during the third millennium BC

    E-Print Network [OSTI]

    Ashkenazy, Yossi "Yosef"

    Department of Solar Energy and Environmental Physics, The J. Blaustein Institute for Desert Research, Ben Introduction Humankind can adapt to extreme climatic conditions, from the very cold weather of Greenland online 16 April 2007 Abstract Although the relations between climate and settlement

  10. H A&S 220C : Energy and Environment : Life Under the Pale Sun Out: 12 October 2004 (Tues)

    E-Print Network [OSTI]

    to think about the challenge of getting enough food energy in this cold environment, and using the idea science. An example might be to estimate the amount of solar energy hitting Greenland, comparedH A&S 220C : Energy and Environment : Life Under the Pale Sun Out: 12 October 2004 (Tues) Back: 26

  11. Air Pollution: History Air Pollution: Any atmospheric constituent present as a result of

    E-Print Network [OSTI]

    Weber, Rodney

    Air Pollution: History Air Pollution: Any atmospheric constituent present as a result, or materials. Before 1200 AD · Air pollution results from wood burning, tanning, decaying trash, smelting with carbon PbO + C -> Pb + CO Pollutants Produced: CO, SO2 ·Hong, et al., Greenland ice evidence

  12. F O R G I N G T H E L I N K 4-1 Historic and Projected

    E-Print Network [OSTI]

    global and regional temperature rises to the increase of greenhouse gas concentrations in the atmosphere) Major GHGs emitted by human activi- ties remain in the atmosphere for time periods ranging from decades concentrations of CO2 gas trapped in Greenland and Antarctic ice. While historically, CO2 levels very seldom

  13. October 2012 PhD Projects at DTU Aqua

    E-Print Network [OSTI]

    Mosegaard, Klaus

    Ecology and Genetics 9 PhD projects within Aquaculture 15 PhD projects within Fisheries Management Systems to sexual selection. Sexual selection theory has proven powerful in explaining the morphology, behaviour, is the deepest passage across the Greenland-Scotland Ridge which connects the water flow from Nordic Seas

  14. 1 OCTOBER 2002 2821D E T H L O F F E T A L . 2002 American Meteorological Society

    E-Print Network [OSTI]

    Fischer, Hubertus

    Accumulation Estimated from Regional Climate Model Simulations and Ice Core Analysis* K. DETHLOFF Alfred Institute, Copenhagen, Denmark A. RINKE AND W. DORN Alfred Wegener Institute for Polar and Marine Research rate distribution over Greenland taking into account information from a new set of ice core analyses

  15. Annals of Glaciology 52(59) 2011 99 Modeling surface-roughness/solar-ablation feedback

    E-Print Network [OSTI]

    Abbot, Dorian Schuyler

    of Atmospheric, Oceanic and Space Sciences, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109 to small-scale surface channels and crevasses of the Greenland ice sheet L. Maclagan CATHLES,1 Dorian S. ABBOT,1 Jeremy N. BASSIS,2 Douglas R. MacAYEAL1 1 Department of Geophysical Sciences, University

  16. National Environmental Research Institute Ministry of the Environment . Denmark

    E-Print Network [OSTI]

    for CO2 , CH4 , N2 O, CO, NMVOC, SO2 , HFCs, PFCs and SF6 . Keywords: Emission Inventory; UNFCCC; IPCC; CO2 ; CH4 ; N2 O; HFCs; PFCs; SF6. ISSN (electronic): 1399-9346 Number of pages: 845 Internet version, Greenland and the Faroe Islands Appendix 2: Emission trends 1990-2001 adjusted for electricity exchange

  17. Nat. Hazards Earth Syst. Sci., 8, 101107, 2008 www.nat-hazards-earth-syst-sci.net/8/101/2008/

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    - cal electric fields penetrating from the earthquake zone into the ionosphere, and seismic activity seismic activity over Southern Ocean, Greenland Sea, South-Weat Pacific Ocean, Indian Ocean, Central America, South-East Pacific Ocean, Malay Archipelago regions are presented. These anomalies, as phenomena

  18. A. E.K.Ris Ris-M-DIlL] Title and uthor(s)

    E-Print Network [OSTI]

    industry. A nuclear geophysical group develops methods for uranium prospecting and also takes part in actual uranium searching Irf the most northern area of Denmark - Greenland. Another group works in basic physics and chemistry research, as well as in technological re- search and development

  19. Ri* Report No. 133 Danish Atomk Energy Commission

    E-Print Network [OSTI]

    Commission Research Establishment Riso Chemistry Department Abstract As part of the work aimed at the exploitation of the uraniferous rock in southern Greenland a flotation process has been developed. The uranium as a possible source of uranium for Denmark's future energy supply. The uranium-bearing rock is a lujavrite

  20. Cone penetration testing in polar snow

    E-Print Network [OSTI]

    McCallum, Adrian Bruce

    2012-04-10T23:59:59.000Z

    Penetration Testing. Creep Ductile deformation of ice (and thus snow) primarily through the movement of crystallographic basal planes due to load applied at low strain rates . Effective Area The extended end-bearing area of the cone or plate during penetra... of determining snow strength. . . . . . . . . . . . . . . . . . . 17 2.7 Classical creep curve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Methods 28 3.1 Test location, Greenland. . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3...

  1. Haakon Fossen $ Department of Earth Science, University of Bergen, Allegt. 41, 5007

    E-Print Network [OSTI]

    Fossen, Haakon

    for reservoir management; examples from southern Utah Haakon Fossen, Tord Erlend Skeie Johansen, Jonny and seis- mic data for hydrocarbon detection. Atle Rotevatn $ Center of Integrated Pe- troleum Research deformed metamorphic rocks in the east Greenland Caledonides to reservoir- scale deformation structures

  2. Integrated Systems Biology Chapter 22: Homeostasis at the Cellular Level Chapter 22: Homeostasis at the Cellular Level

    E-Print Network [OSTI]

    Campbell, A. Malcolm

    . Describe how plants capture energy from sunlight and convert that energy into new forms of potential energy of habitats and energy sources exploited by extremophiles. 6. Draw a picture that shows the flow of energy in Europe? 22.2 How does Brazil's rainforest affect Greenland's glaciers? ELSI Box 22.1 How do you

  3. SUBSURFACE DRIP IRRIGATION SYSTEMS FOR SPECIALTY CROP PRODUCTION IN NORTH DAKOTA

    E-Print Network [OSTI]

    Steele, Dean D.

    SUBSURFACE DRIP IRRIGATION SYSTEMS FOR SPECIALTY CROP PRODUCTION IN NORTH DAKOTA D.D.Steele, R.G.Greenland, B. L. Gregor ABSTRACT. Subsurface drip irrigation (SDI) systems offer advantages over other types of irrigation systems for specialty crop production, including water savings, improved trafficability

  4. Challenges and Opportunities for the Business and Science

    E-Print Network [OSTI]

    Kiehl, Jeff

    (increased intensity) Snow cover (decrease) Sea ice cover (decrease) Ocean heat (increase) Ocean) (AD 2200-2300?) High Climate Sensitivity Low Climate Sensitivity (Geol. Data) (No Arctic/Greenland ice Changes in Consumption #12;3/19/08 28 EnvironmentHumans #12;3/19/08 29 #12;3/19/08 30 Leiserowitz (2007

  5. The Scientific and Social Challenges of Global Warming

    E-Print Network [OSTI]

    Kiehl, Jeff

    ) Snow cover (decrease) Sea ice cover (decrease) Ocean heat (increase) Ocean acidity (increase) (AD 2200-2300?) High Climate Sensitivity Low Climate Sensitivity (Geol. Data) (No Arctic/Greenland ice in Technology Changes in Consumption #12;10/16/07 30 US is 5% of global population, but 25% of global

  6. Winter mixed-layer development in the central Irminger Sea : the effect of strong, intermittent wind events

    E-Print Network [OSTI]

    Vge, Kjetil

    2006-01-01T23:59:59.000Z

    The impact of the Greenland tip jet on the wintertime mixed-layer of the southwest Irminger Sea is investigated using in-situ moored profiler data and a variety of atmospheric data sets. The mixed-layer was observed to ...

  7. Biodata of Warwick F. Vincent, author of the chapter "Cold Tolerance in Cyanobacteria and Life in the Cryosphere"

    E-Print Network [OSTI]

    Vincent, Warwick F.

    -Finnish explorer Adolf Erik Nordenskild. In his expedition across the Greenland Ice Cap in 1870 his team and its bound sediment absorbs radiation and hastens melting of the ice, a process more recently Studies at Laval University, Quebec City, Canada. He obtained his BSc (hons) in Botany and Cell Biology

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

    E-Print Network [OSTI]

    Bhatt, Uma

    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

  9. The Earth had been a very warm and pleasant planet for more

    E-Print Network [OSTI]

    Archimedes and the bath tub), but if the ice caps of Greenland or Antarctica were to melt (or slide, Earth would have been clearly recognisable from space as a green and blue planet with ice caps on both), and we may be on our way back to the single-capped planet of the Pliocene. Ice loss In the last 30 years

  10. Center Moriches, New York December 11, 2008

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    of Arizona #12;Weiss and Overpeck, University of Arizona #12;MELTING OF GREENLAND ICE CAP Satellite Polar ice cores #12;GREENHOUSE GAS FORCING AND CHANGE IN GLOBAL MEAN SURFACE TEMPERATURE 1855-2004 -0 determination of extent of glacial melt 1992 vs 2002 4002,egdirbmaC,tnemssessAtcapmIetamilCcitcrA Complete melt

  11. Postdoctoral position Antarctic ice sheet modelling Free University of Brussels (VUB)

    E-Print Network [OSTI]

    Huybrechts, Philippe

    systems and ice caps, and in ice sheets in both polar regions (Greenland and Antarctica). The project as improved treatments for basal processes (basal sliding below ice sheet, basal melting below ice shelvesPostdoctoral position Antarctic ice sheet modelling Free University of Brussels (VUB) The Ice

  12. The historical global sea-level budget J.C. MOORE,1,2

    E-Print Network [OSTI]

    Moore, John

    -level contributions from glaciers and small ice caps, the Greenland ice sheet and thermosteric sea level are available unsurveyed high-latitude small glaciers and ice caps. The sea-level budget from 1850 is estimated using because it takes $50 times more energy to raise sea level by ocean heating than by ice melting (Trenberth

  13. View of NY harbor from the JOIDES Resolution in an ice-free world (73 m rise)

    E-Print Network [OSTI]

    less dense global 20th century warming ~0.6C 1.6 mm/yr sea-level rise Melting Glaciers & Ice Caps? Melting Mountain Glaciers and Ice Caps: Alpine glaciers 0.6 mm/yr Greenland Ice Cap IPCC2001: near 0-80 cm IPPC 2007 error: 20-60 cm (does not include ice sheet melting) http

  14. Atmos. Chem. Phys., 10, 1164711680, 2010 www.atmos-chem-phys.net/10/11647/2010/

    E-Print Network [OSTI]

    Warren, Stephen

    , and the Arctic Ocean during 1998 and 20052009, on tun- dra, glaciers, ice caps, sea ice, frozen lakes for sampling. Sampling was carried out in summer on the Greenland Ice Sheet and on the Arctic Ocean, of melting Correspondence to: S. J. Doherty (sarahd@atmos.washington.edu) 7, melting sea ice 8, Arctic Canada 8, subarctic

  15. The Cryosphere, 1, 5965, 2007 www.the-cryosphere.net/1/59/2007/

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    ). Thermal expansion of ocean water, changes in terrestrial storage of water, melting of smaller ice caps by "glacier contribu- tion" the contribution to sea-level change from all glaciers and ice caps outside the large ice sheets of Greenland and Antarctica. Included are the glaciers and ice caps on Green- land

  16. Frequently Asked Questions Frequently Asked Question 4.1

    E-Print Network [OSTI]

    and contribut- ing to sea level rise. The total contribution of glacier, ice cap and ice sheet melt to sea level of near- balance around 1970, this was followed by increased shrinkage. Melting of glaciers and ice caps and increased Greenland surface melting. Ice interacts with the surrounding climate in complex ways, so

  17. J. Blunden, D. S. Arndt, and M. O. Baringer, Eds. Associate Eds. K. M.Willett,A. J. Dolman, B. D. Hall, P.W.Thorne, J. M. Levy, H. J. Diamond,

    E-Print Network [OSTI]

    . The warm air from the south was responsible for the longest period and largest area of ice sheet melt since small glaciers and ice caps continued to increase. At the circum-Arctic scale, with the exception, ocean, sea ice cover, land, and Greenland. The land section includes vegetation, permafrost, river

  18. HYDROLOGICAL PROCESSES Hydrol. Process. 20, 857876 (2006)

    E-Print Network [OSTI]

    Vincent, Warwick F.

    2006-01-01T23:59:59.000Z

    of relief INTRODUCTION Early explorers on the Greenland Ice Cap noted the presence of sediment reduced albedo and could thereby accelerate the melting of sea ice (Blanck et al., 1932), river ice on the Ward Hunt Ice Shelf Derek R. Mueller and Warwick F. Vincent* Centre d'etudes nordiques & D

  19. INTERNATIONAL JOURNAL OF CLIMATOLOGY Int. J. Climatol. 20: 853863 (2000)

    E-Print Network [OSTI]

    deMenocal, Peter B.

    , dipole-like climate change patterns between western Greenland/Mediterranean and northern Europe Recei6ed 11 December 1998 Re6ised 7 September 1999 Accepted 9 September 1999 ABSTRACT Changes Oscillation (NAO), a large-scale mode of natural climate variability which governs the path of Atlantic mid

  20. Saunders, A.D., Larsen, H.C., and Wise, S.W., Jr. (Eds.), 1998 Proceedings of the Ocean Drilling Program, Scientific Results, Vol. 152

    E-Print Network [OSTI]

    Saunders, A.D., Larsen, H.C., and Wise, S.W., Jr. (Eds.), 1998 Proceedings of the Ocean Drilling PALEOCENE BASALT IN HOLE 917A, EAST GREENLAND MARGIN1 Tracy Vallier,2 Lewis Calk,3 Rainer Stax,4 and Alain

  1. Journal of Climate, 2005, Vol 18, p 2903-2921 Maintenance of the Sea-Ice Edge

    E-Print Network [OSTI]

    Bitz, Cecilia

    radiation is the largest component of the ocean energy budget, and the large seasonal range of insolation is known to expand in early winter roughly to the mean position of the ocean thermal front in the Greenland pole depends primarily on coastlines, ice motion, and the melt rate at the ice-ocean interface. At any

  2. Amer J of Potato Res (2006) 83:249-257 249 Furrow vs Hill Planting of Sprinkler-Irrigated Russet Burbank

    E-Print Network [OSTI]

    Steele, Dean D.

    2006-01-01T23:59:59.000Z

    Amer J of Potato Res (2006) 83:249-257 249 Furrow vs Hill Planting of Sprinkler-Irrigated Russet Burbank Potatoes on Coarse-Textured Soils Dean D. Steele1 *, Richard G. Greenland2 , and Harlene M Surface water runoff from the hill, where potatoes are planted, to the furrow may exacerbate potato

  3. From the front

    SciTech Connect (OSTI)

    Price, Stephen [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    The causes of recent dynamic thinning of Greenland's outlet glaciers have been debated. Realistic simulations suggest that changes at the marine fronts of these glaciers are to blame, implying that dynamic thinning will cease once the glaciers retreat to higher ground. For the last decade, many outlet glaciers in Greenland that terminate in the ocean have accelerated, thinned, and retreated. To explain these dynamic changes, two hypotheses have been discussed. Atmospheric warming has increased surface melting and may also have increased the amount of meltwater reaching the glacier bed, increasing lubrication at the base and hence the rate of glacier sliding. Alternatively, a change in the delicate balance of forces where the glacier fronts meet the ocean could trigger the changes. Faezeh Nick and colleagues5 present ice-sheet modeling experiments that mimic the observations on Helheim glacier, East Greenland, and suggest that the dynamic behaviour of outlet glaciers follows from perturbations at their marine fronts. Greenland's ice sheet loses mass partly through surface melting and partly through fast flowing outlet glaciers that connect the vast plateau of inland ice with the ocean. Earlier ice sheet models have failed to reproduce the dynamic variability exhibited by ice sheets over time. It has therefore not been possible to distinguish with confidence between basal lubrication from surface meltwater and changes at the glaciers' marine fronts as causes for the observed changes on Greenland's outlet glaciers. But this distinction bears directly on future sea-level rise, the raison d'etre of much of modern-day glaciology: If the recent dynamic mass loss Greenland's outlet glaciers is linked to changing atmospheric temperatures, it may continue for as long as temperatures continue to increase. On the other hand, if the source of the dynamic mass loss is a perturbation at the ice-ocean boundary, these glaciers will lose contact with that perturbation after a finite amount of thinning and retreat. Therefore, the first hypothesis implies continued retreat of outlet glaciers into the foreseeable future, while the second does not -- provided the bedrock topography prohibits a connection between the retreating glacier and the ocean. Nick and coauthors test the physical mechanisms implied in each hypotbesis in an innovative ice-flow model, and use that model to try to match a time series of observations from Helheim glacier, one of Greenland's three largest outlet glaciers. Along with many observations, the simulations strongly support the contention that the recent retreat of Greenland's outlet glaciers is the result of changes at their marine fronts.Further, the simulations confirm the earlier hypotheses that bedrock topography largely controlled Helheim glacier's rapid acceleration and retreat in 2004 and 2005, and its deceleration and stabilization in 2006. Finally, the current work implies that if requirements of observational data (high-resolution bed topography) and computational resources (fine computational grid resolution) can be met, improved predictive capability for ice-sheet models is attainable. With respect to the concerns raised by the IPCC, this study signals progress.

  4. A, Science S?i.vice Feature Released u?on receipt

    E-Print Network [OSTI]

    ~IWTLP'SICE-CAP Several journeys have been macle across the great ice-cap o r "inland ice'' wxhr &ich Greenland l i e, but the depth of the ice has hitherto re:zij.;md a mystery. The first steps toward getting positive inforination; off a charge of dynamite at a cer,tain Point on thc surface of the ice and recordirg tho shock

  5. 90E 120 150 180 210 240 270 300 330 0 30 60 OCEAN ATLANTIC

    E-Print Network [OSTI]

    GREENLAND EUROPE AFRICA SOUTH AMERICA NORTH AMERICA ASIA AUSTRALIA ANTARCTICA INDIAN OCEAN PACIFIC OCEAN ATLANTIC OCEAN ARCTIC OCEAN 418 625 626-636 637-641 642-644 645 646 647 648-649 650-656 657-659 660-661 662 1102-1103 1104-1106 1107 1108-1118 1119 1120 1121 1122 1123 1124 1125 1126-1134 998-1001 SOUTHERN OCEAN

  6. 90E 120 150 180 210 240 270 300 330 0 30 60 SOUTH AMERICA

    E-Print Network [OSTI]

    GREENLAND EUROPE AFRICA SOUTH AMERICA NORTH AMERICA ASIA AUSTRALIA ANTARCTICA INDIAN OCEAN PACIFIC OCEAN Reentry cone use 126/793B 127/797C 210/1276A,B 45/395A 127/794C PACIFIC OCEAN #12; ATLANTIC OCEAN ARCTIC OCEAN 44/390A 86/577,A,B 113/689B 113/690C 119/738C 120/750A 121/752B 122/761C 122

  7. Monitoring temporal opacity fluctuations of large structures with muon tomography : a calibration experiment using a water tower tank

    E-Print Network [OSTI]

    Kevin Jourde; Dominique Gibert; Jacques Marteau; Jean de Bremond d'Ars; Serge Gardien; Claude Girerd; Jean-Christophe Ianigro

    2015-04-09T23:59:59.000Z

    The idea of using secondary cosmic muons to scan the internal structure of a given body has known significant developments since the first archaeological application by Alvarez and collaborators on the Gizah pyramids. Recent applications cover the fields of volcanology, hydrology, civil engineering, mining, archaeology etc. Muon radiography features are essentially identical to those of medical X-ray imaging techniques. It is a contrast densitometry method using the screening effect of the body under study on the natural flux of cosmic muons. This technique is non-invasive and complements the standard geophysical techniques, e.g. electrical tomography or gravimetry. It may be applied to a large variety of geological targets, among which the domes of active volcanoes. In this context muon tomography presents the noticeable advantage to perform measurements of large volumes, with a large aperture, from a distant point, far from the potentially dangerous zones. The same conclusions apply regarding the monitoring of the volcano's activity since muon tomography provides continuous data taking, provided the muon detectors are sufficiently well designed and autonomous. Recent measurements on La Soufri\\`ere of Guadeloupe (Lesser Antilles, France) show, over a one year period, large modulations of the crossing muon flux, correlated with an increase of the activity in the dome. In order to firmly establish the sensitivity of the method and of our detectors and to disentangle the effects on the muon flux modulations induced by the volcano's hydrothermal system from those induced by other sources, e.g. atmospheric temperature and pressure, we perform a dedicated calibration experiment inside a water tower tank. We show how the method is fully capable of dynamically following fast variations in the density.

  8. An update on land-ice modeling in the CESM

    SciTech Connect (OSTI)

    Lipscomb, William H [Los Alamos National Laboratory

    2011-01-18T23:59:59.000Z

    Mass loss from land ice, including the Greenland and Antarctic ice sheets as well as smaller glacier and ice caps, is making a large and growing contribution to global sea-level rise. Land ice is only beginning to be incorporated in climate models. The goal of the Land Ice Working Group (LIWG) is to develop improved land-ice models and incorporate them in CESM, in order to provide useful, physically-based sea-level predictions. LJWG efforts to date have led to the inclusion of a dynamic ice-sheet model (the Glimmer Community Ice Sheet Model, or Glimmer-CISM) in the Community Earth System Model (CESM), which was released in June 2010. CESM also includes a new surface-mass-balance scheme for ice sheets in the Community Land Model. Initial modeling efforts are focused on the Greenland ice sheet. Preliminary results are promising. In particular, the simulated surface mass balance for Greenland is in good agreement with observations and regional model results. The current model, however, has significant limitations: The land-ice coupling is one-way; we are using a serial version of Glimmer-CISM with the shallow-ice approximation; and there is no ice-ocean coupling. During the next year we plan to implement two-way coupling (including ice-ocean coupling with a dynamic Antarctic ice sheet) with a parallel , higher-order version of Glimmer-CISM. We will also add parameterizations of small glaciers and ice caps. With these model improvements, CESM will be able to simulate all the major contributors to 21st century global sea-level rise. Results of the first round of simulations should be available in time to be included in the Fifth Assessment Report (ARS) of the Intergovernmental Panel on Climate Change.

  9. Upper Palaeolithic population histories of Southwestern France: a comparison of the demographic signatures of 14C date distributions and archaeological site counts

    E-Print Network [OSTI]

    French, Jennifer C.; Collins, Christina

    2016-01-14T23:59:59.000Z

    of re h, Department of Archaeology and Anthropology, University of Cambridge, Downing Street, Cambridge, CB2 3ER, UK b School of Archaeology, Classics and Egyptology, Unive a r t i c l e i n f o Article history: Received 13 September 2014 Received... d18O curve (dotted line, smoothed RIP Dating Group (2008), Rasmussen et al. (2006), Svensson et al. (2006). logical Science 55 (2015) 122e134 129the South-Western France refugium zone during the Greenland Stadial 2a cold stage with the relative...

  10. Chronology for fluctuations in late pleistocene Sierra Nevada glaciers and lakes

    SciTech Connect (OSTI)

    Phillips, F.M.; Zreda, M.G.; Plummer, M.A. [New Mexico Institute of Mining and Technology, Socorro, NM (United States)] [and others] [New Mexico Institute of Mining and Technology, Socorro, NM (United States); and others

    1996-11-01T23:59:59.000Z

    Mountain glaciers, because of their small size, are usually close to equilibrium with the local climate and thus should provide a test of whether temperature oscillations in Greenland late in the last glacial period are part of global-scale climate variability or are restricted to the North Atlantic region. Correlation of cosmogenic chlorine-36 dates on Sierra Nevada moraines with a continuous radiocarbon-dated sediment record from nearby Owens Lake shows that Sierra Nevada glacial advances were associated with Heinrich events 5, 3, and 1. 27 refs., 2 figs., 1 tab.

  11. The whole world had a case of the ice age shivers

    SciTech Connect (OSTI)

    Kerr, R.A.

    1993-12-24T23:59:59.000Z

    There is now worldwide evidence of short-term increases in the earth's temperature during the last ice ages. This evidence comes from South American glaciers, Antarctic ice cores, and sediment cores from the tropical oceans, as well as Greenland ice cores. Researcher are unsure of the causes of these fluctuations. Some speculate a means for transmitting a climate signal from the North Atlantic to the rest of the world, while others look to some shorter-term version of the orbital variations that pace the cycle of the ice ages.

  12. Minerals yearbook: Mineral industries of Europe and the USSR. Volume 3. 1990 international review

    SciTech Connect (OSTI)

    Not Available

    1990-01-01T23:59:59.000Z

    The section of the Minerals Yearbook reviews the minerals industries of 29 countries: the 12 nations of the European Community (Belgium, France, the Federal Republic of Germany (FRG), Italy, Greece, the Netherlands, Denmark/Greenland, Spain, Portugal, Luxembourg, The United Kingdom, and Ireland); 6 of the 7 nations of the European Free Trade Association (Sweden, Norway, Finland, Iceland, Austria, and Switzerland); Malta; the 8 Centrally Planned Economies of Eastern Europe (the German Democratic Republic (GDR), Poland, Yugoslavia, Albania, Hungary, Czechoslovakia, Romania, and Bulgaria); and the USSR.

  13. Greenman Financial Advisors LLC | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergyFarms A SUKHydrogen Company JumpGreenchoiceGreenland

  14. Technique for continuous high-resolution analysis of trace substances in firn and ice cores

    SciTech Connect (OSTI)

    Roethlisberger, R.; Bigler, M.; Hutterli, M.; Sommer, S.; Stauffer, B.; Junghans, H.G.; Wagenbach, D.

    2000-01-15T23:59:59.000Z

    The very successful application of a CFA (Continuous flow analysis) system in the GRIP project (Greenland Ice Core Project) for high-resolution ammonium, calcium, hydrogen peroxide, and formaldehyde measurements along a deep ice core led to further development of this analysis technique. The authors included methods for continuous analysis technique. The authors included methods for continuous analysis of sodium, nitrate, sulfate, and electrolytical conductivity, while the existing methods have been improved. The melting device has been optimized to allow the simultaneous analysis of eight components. Furthermore, a new melter was developed for analyzing firn cores. The system has been used in the frame of the European Project for Ice Coring in Antarctica (EPICA) for in-situ analysis of several firn cores from Dronning Maud Land, Antarctica, and for the new ice core drilled at Dome C, Antarctica.

  15. Laurentide Ice Sheet meltwater and abrupt climate change during the last glaciation

    SciTech Connect (OSTI)

    Hill, H W; Flower, B P; Quinn, T M; Hollander, D J; Guilderson, T P

    2005-10-02T23:59:59.000Z

    A leading hypothesis to explain abrupt climate change during the last glacial cycle calls on fluctuations in the margin of the North American Laurentide Ice Sheet (LIS), which may have routed freshwater between the Gulf of Mexico (GOM) and North Atlantic, affecting North Atlantic Deep Water (NADW) variability and regional climate. Paired measurements of {delta}O and Mg/Ca of foraminiferal calcite from GOM sediments reveal five episodes of LIS meltwater input from 28-45 thousand years ago (ka) that do not match the millennial-scale Dansgaard-Oeschger (D/O) warmings recorded in Greenland ice. We suggest that summer melting of the LIS may occur during Antarctic warming and likely contributed to sea-level variability during Marine Isotope Stage 3 (MIS 3).

  16. Low time resolution analysis of polar ice cores cannot detect impulsive nitrate events

    E-Print Network [OSTI]

    Smart, D F; Melott, A L; Laird, C M

    2015-01-01T23:59:59.000Z

    Ice cores are archives of climate change and possibly large solar proton events (SPEs). Wolff et al. (2012) used a single event, a nitrate peak in the GISP2-H core, which McCracken et al. (2001a) time associated with the poorly quantified 1859 Carrington event, to discredit SPE-produced, impulsive nitrate deposition in polar ice. This is not the ideal test case. We critique the Wolff et al. analysis and demonstrate that the data they used cannot detect impulsive nitrate events because of resolution limitations. We suggest re-examination of the top of the Greenland ice sheet at key intervals over the last two millennia with attention to fine resolution and replicate sampling of multiple species. This will allow further insight into polar depositional processes on a sub-seasonal scale, including atmospheric sources, transport mechanisms to the ice sheet, post-depositional interactions, and a potential SPE association.

  17. Dynamically coupling the non-linear Stokes equations with the Shallow Ice Approximation in glaciology: Description and first applications of the ISCAL method

    E-Print Network [OSTI]

    Ahlkrona, Josefin; Kirchner, Nina; Zwinger, Thomas

    2015-01-01T23:59:59.000Z

    We propose and implement a new method, called the Ice Sheet Coupled Approximation Levels (ISCAL) method, for simulation of ice sheet flow in large domains under long time-intervals. The method couples the exact, full Stokes (FS) equations with the Shallow Ice Approximation (SIA). The part of the domain where SIA is applied is determined automatically and dynamically based on estimates of the modeling error. For a three dimensional model problem where the number of degrees of freedom is comparable to a real world application, ISCAL performs almost an order of magnitude faster with a low reduction in accuracy compared to a monolithic FS. Furthermore, ISCAL is shown to be able to detect rapid dynamic changes in the flow. Three different error estimations are applied and compared. Finally, ISCAL is applied to the Greenland Ice Sheet, proving ISCAL to be a potential valuable tool for the ice sheet modeling community.

  18. Coupled models and parallel simulations for three-dimensional full-Stokes ice sheet modeling

    SciTech Connect (OSTI)

    Zhang, Huai [Graduate University of Chinese Academy of Sciences; Ju, Lili [University of South Carolina; Gunzburger, Max [Florida State University; Ringler, Todd [Los Alamos National Laboratory; Price, Stephen [Los Alamos National Laboratory

    2011-01-01T23:59:59.000Z

    A three-dimensional full-Stokes computational model is considered for determining the dynamics, temperature, and thickness of ice sheets. The governing thermomechanical equations consist of the three-dimensional full-Stokes system with nonlinear rheology for the momentum, an advective-diffusion energy equation for temperature evolution, and a mass conservation equation for icethickness changes. Here, we discuss the variable resolution meshes, the finite element discretizations, and the parallel algorithms employed by the model components. The solvers are integrated through a well-designed coupler for the exchange of parametric data between components. The discretization utilizes high-quality, variable-resolution centroidal Voronoi Delaunay triangulation meshing and existing parallel solvers. We demonstrate the gridding technology, discretization schemes, and the efficiency and scalability of the parallel solvers through computational experiments using both simplified geometries arising from benchmark test problems and a realistic Greenland ice sheet geometry.

  19. Time varying arctic climate change amplification

    SciTech Connect (OSTI)

    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

    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.

  20. Cusp/cleft auroral forms and activities in relation to ionospheric convection: Responses to specific changes in solar wind and interplanetary magnetic field conditions

    SciTech Connect (OSTI)

    Sandholt, P.E. [Univ., of Oslo, Oslo (Norway)] [Univ., of Oslo, Oslo (Norway); Farrugia, C.J. [Univ. of Malta, Msida (Malta)] [Univ. of Malta, Msida (Malta); Stauning, P. [Danish Meteorological Institute, Copenhagen (Denmark)] [Danish Meteorological Institute, Copenhagen (Denmark); Crowley, S.W.H. [Imperial College, London (United Kingdom)] [Imperial College, London (United Kingdom)

    1996-03-01T23:59:59.000Z

    The authors describe in detail a four hour period on Dec 17, 1992, of cusp/cleft region observations, made in conjunction with the occurance of a transient auroral event. There was an IMF directional discontinuity where the fields changed from positive IMF B{sub y} (B{sub z}{much_lt}0) to large negative B{sub y} (B{sub z}>0) in conjunction with a change in convection direction in the cusp region. They present data from satellite observations, in addition to ground based data collected over an array of stations in Greenland and Svalbard. They view this as a first step toward an effort to correlate responses in the ionosphere to different solar wind and interplantetary magnetic field conditions. They analyze this data in terms of the array of different conditions which was exhibited in the ionosphere over this four hour period.

  1. (Reduce uncertainty in projection of future sea-level change due to ice wastage)

    SciTech Connect (OSTI)

    Meier, M.F.

    1991-01-01T23:59:59.000Z

    Three basic goals were stated in the original proposal. These were: (1) develop an understanding of the heat and mass flow into subfreezing snow and firn, in order to model the evolution of the temperature distribution and the infiltration rates through the firn; (2) relate changes in climate, as given by general circulation model predictions, to changes in the surface mass and energy balances of glaciers; and (3) use the above results to analyze the effects of changed surface mass and energy balances on the flow of meltwater through snow and firn, and on the runoff from these glaciers, in a CO{sub 2}-affected climate. This final report summarizes our progress toward these goals. The primary product of this research program has been the communication of this progress in the form of publications in the scientific literature and presentations at scientific meetings. Our research activities in the past three years have provided a new basis for modeling of multiphase flow in subfreezing snow, new field data on the structural properties of arctic firn pertinent to hydrological modeling, and estimates of sea level change in response to changing patterns of runoff from the Greenland Ice Sheet. We conclude that forecasts of future sea level changes from all glacier runoff sources may be in error by amounts on the order of +8 cm over the next 150 years, due to the lag in generating runoff to the sea. Our specific research products include two distributed-parameter models of water flow through snow with melting and freezing, a theoretical model of wetting-front advance into subfreezing snow for inclusion in a future model, and a simple large-scale model of the response of Greenland runoff in a changing climate which provides estimates of the effect of melt water refreezing phenomena on sea level changes in response to a range of possible future climates.

  2. The Exiguobacterium genus: biodiversity and biogeography

    SciTech Connect (OSTI)

    Vishnivetskaya, Tatiana A [ORNL; Kathariou, Sophia [North Carolina State University; Tiedje, James M. [Michigan State University, East Lansing

    2009-01-01T23:59:59.000Z

    Abstract. Bacteria of the genus Exiguobacterium are low G + C, Gram-positive facultative anaerobes that have been repeatedly isolated from ancient Siberian permafrost. In addition, Exiguobacterium spp. have been isolated from markedly diverse sources, including Greenland Glacial ice, hot springs at Yellowstone National Park, the rhizosphere of plants, and the environment of food processing plants. Strains of this hereto little known bacterium that have been retrieved from such different (and often extreme) environments are worthy of attention as they are likely to be specifically adapted to such environments and to carry variations in the genome which may correspond to psychrophilic and thermophilic adaptations. However, comparative genomic investigations of Exiguobacterium spp. from different sources have been limited. In this study, we employed different molecular approaches for the comparative analysis of 24 isolates from markedly diverse environments including ancient Siberian permafrost and hot springs at Yellowstone National Park. Pulsed-field gel electrophoresis (PFGE) with I-CeuI (an intron-encoded endonuclease), AscI and NotI were optimized for the determination of genomic fingerprints of nuclease-producing isolates. The application of a DNA macroarray for 82 putative stress-response genes yielded strain-specific hybridization profiles. Cluster analyses of 16S rRNA gene sequence data, PFGE I-CeuI restriction patterns and hybridization profiles suggested that Exiguobacterium strains formed two distinct divisions that generally agreed with temperature ranges for growth. With few exceptions (e.g., Greenland ice isolate GIC31), psychrotrophic and thermophilic isolates belonged to different divisions.

  3. A multi-model assessment of pollution transport to the Arctic

    SciTech Connect (OSTI)

    Shindell, D T; Chin, M; Dentener, F; Doherty, R M; Faluvegi, G; Fiore, A M; Hess, P; Koch, D M; MacKenzie, I A; Sanderson, M G; Schultz, M G; Schulz, M; Stevenson, D S; Teich, H; Textor, C; Wild, O; Bergmann, D J; Bey, I; Bian, H; Cuvelier, C; Duncan, B N; Folberth, G; Horowitz, L W; Jonson, J; Kaminski, J W; Marmer, E; Park, R; Pringle, K J; Schroeder, S; Szopa, S; Takemura, T; Zeng, G; Keating, T J; Zuber, A

    2008-03-13T23:59:59.000Z

    We examine the response of Arctic gas and aerosol concentrations to perturbations in pollutant emissions from Europe, East and South Asia, and North America using results from a coordinated model intercomparison. These sensitivities to regional emissions (mixing ratio change per unit emission) vary widely across models and species. Intermodel differences are systematic, however, so that the relative importance of different regions is robust. North America contributes the most to Arctic ozone pollution. For aerosols and CO, European emissions dominate at the Arctic surface but East Asian emissions become progressively more important with altitude, and are dominant in the upper troposphere. Sensitivities show strong seasonality: surface sensitivities typically maximize during boreal winter for European and during spring for East Asian and North American emissions. Mid-tropospheric sensitivities, however, nearly always maximize during spring or summer for all regions. Deposition of black carbon (BC) onto Greenland is most sensitive to North American emissions. North America and Europe each contribute {approx}40% of total BC deposition to Greenland, with {approx}20% from East Asia. Elsewhere in the Arctic, both sensitivity and total BC deposition are dominated by European emissions. Model diversity for aerosols is especially large, resulting primarily from differences in aerosol physical and chemical processing (including removal). Comparison of modeled aerosol concentrations with observations indicates problems in the models, and perhaps, interpretation of the measurements. For gas phase pollutants such as CO and O{sub 3}, which are relatively well-simulated, the processes contributing most to uncertainties depend on the source region and altitude examined. Uncertainties in the Arctic surface CO response to emissions perturbations are dominated by emissions for East Asian sources, while uncertainties in transport, emissions, and oxidation are comparable for European and North American sources. At higher levels, model-to-model variations in transport and oxidation are most important. Differences in photochemistry appear to play the largest role in the intermodel variations in Arctic ozone sensitivity, though transport also contributes substantially in the mid-troposphere.

  4. A subtropical fate awaited freshwater discharged from glacial Lake Agassiz

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

    Condron, Alan; Winsor, Peter

    2011-02-01T23:59:59.000Z

    The 8.2 kyr event is the largest abrupt climatic change recorded in the last 10,000 years, and is widely hypothesized to have been triggered by the release of thousands of kilometers cubed of freshwater into the North Atlantic Ocean. Using a high-resolution (1/6) global, ocean-ice circulation model we present an alternative view that freshwater discharged from glacial Lake Agassiz would have remained on the continental shelf as a narrow, buoyant, coastal current, and would have been transported south into the subtropical North Atlantic. The pathway we describe is in contrast to the conceptual idea that freshwater from this lake outburstmorespread over most of the sub-polar North Atlantic, and covered the deep, open-ocean, convection regions. This coastally confined freshwater pathway is consistent with the present-day routing of freshwater from Hudson Bay, as well as paleoceanographic evidence of this event. Using a coarse-resolution (2.6) version of the same model, we demonstrate that the previously reported spreading of freshwater across the sub-polar North Atlantic results from the inability of numerical models of this resolution to accurately resolve narrow coastal flows, producing instead a diffuse circulation that advects freshwater away from the boundaries. To understand the climatic impact of freshwater released in the past or future (e.g. Greenland and Antarctica), the ocean needs to be modeled at a resolution sufficient to resolve the dynamics of narrow, coastal buoyant flows.less

  5. The Characterization of Psychrophilic Microorganisms and their potentially useful Cold-Active Glycosidases Final Progress Report

    SciTech Connect (OSTI)

    Brenchly, Jean E.

    2008-06-30T23:59:59.000Z

    Our studies of novel, cold-loving microorganisms have focused on two distinct extreme environments. The first is an ice core sample from a 120,000 year old Greenland glacier. The results of this study are particularly exciting and have been highlighted with press releases and additional coverage. The first press release in 2004 was based on our presentation at the General Meeting of the American Society for Microbiology and was augmented by coverage of our publication (Appl. Environ. Microbiol. 2005. Vol. 71:7806) in the Current Topics section of the ASM news journal, Microbe. Of special interest for this report was the isolation of numerous, phylogenetically distinct and potentially novel ultrasmall microorganisms. The detection and isolation of members of the ultrasmall population is significant because these cells pass through 0.2 micron pore filters that are generally used to trap microorganisms from environmental samples. Thus, analyses by other investigators that examined only cells captured on the filters would have missed a significant portion of this population. Only a few ultrasmall isolates had been obtained prior to our examination of the ice core samples. Our development of a filtration enrichment and subsequent cultivation of these organisms has added extensively to the collection of, and knowledge about, this important population in the microbial world.

  6. The environmental record in glaciers and ice sheets

    SciTech Connect (OSTI)

    Oeschger, H.; Langway, C.C. Jr. (eds.)

    1989-01-01T23:59:59.000Z

    This book conveys from different points of view a sense of the variables involved in the formation and movement of glacial ice and the kinds of information held in the various glaciers. It also covers methodology and presents examples of recent findings and unexplored pathways. Verifying ice core chronology is a major challenge. Radioactive constituents such as {sup 14}C, {sup 10}Be, and {sup 81}Kr produced in the atmosphere by cosmic radiation can be useful for dating within the ranges of their respective half-lives. Abrupt changes in carbon dioxide concentration during an approximately 10,000-year period at a depth of about 2 kilometers in ice from the Dye 3 core (southern Greenland) and their evident correlation with changes in {sup 18}O values arouse great curiosity. Other abrupt (on a geologic time scale) changes in such parameters bear witness to large changes in climate in periods of a century or less. The presence of pollen testifies to the large body of unexploited information in these cores. Dating of pollen deposits, identification of species, and correlation of the resulting data with varve information on continental and ocean sediments should give new insight into climate change, species adaptation, forest migration, and back trajectories of air masses.

  7. Geoscience laser altimeter system - stellar reference system

    SciTech Connect (OSTI)

    Millar, Pamela S.; Sirota, J. Marcos [NASA Goddard Space Flight Center, Laser Remote Sensing Branch, Code 924, Greenbelt, Maryland, 20771 (United States); University of Maryland at Baltimore County, 5401 Wilkens Ave, Baltimore, Maryland, 21228-5398 (United States)

    1998-01-15T23:59:59.000Z

    GLAS is an EOS space-based laser altimeter being developed to profile the height of the Earth's ice sheets with {approx}15 cm single shot accuracy from space under NASA's Mission to Planet Earth (MTPE). The primary science goal of GLAS is to determine if the ice sheets are increasing or diminishing for climate change modeling. This is achieved by measuring the ice sheet heights over Greenland and Antarctica to 1.5 cm/yr over 100 kmx100 km areas by crossover analysis (Zwally 1994). This measurement performance requires the instrument to determine the pointing of the laser beam to {approx}5 urad (1 arcsecond), 1-sigma, with respect to the inertial reference frame. The GLAS design incorporates a stellar reference system (SRS) to relate the laser beam pointing angle to the star field with this accuracy. This is the first time a spaceborne laser altimeter is measuring pointing to such high accuracy. The design for the stellar reference system combines an attitude determination system (ADS) with a laser reference system (LRS) to meet this requirement. The SRS approach and expected performance are described in this paper.

  8. Glacier calving, dynamics, and sea-level rise. Final report

    SciTech Connect (OSTI)

    Meier, M.F.; Pfeffer, W.T.; Amadei, B.

    1998-08-01T23:59:59.000Z

    The present-day calving flux from Greenland and Antarctica is poorly known, and this accounts for a significant portion of the uncertainty in the current mass balance of these ice sheets. Similarly, the lack of knowledge about the role of calving in glacier dynamics constitutes a major uncertainty in predicting the response of glaciers and ice sheets to changes in climate and thus sea level. Another fundamental problem has to do with incomplete knowledge of glacier areas and volumes, needed for analyses of sea-level change due to changing climate. The authors proposed to develop an improved ability to predict the future contributions of glaciers to sea level by combining work from four research areas: remote sensing observations of calving activity and iceberg flux, numerical modeling of glacier dynamics, theoretical analysis of the calving process, and numerical techniques for modeling flow with large deformations and fracture. These four areas have never been combined into a single research effort on this subject; in particular, calving dynamics have never before been included explicitly in a model of glacier dynamics. A crucial issue that they proposed to address was the general question of how calving dynamics and glacier flow dynamics interact.

  9. Paleoenviromental data from less-investigated polar regions

    SciTech Connect (OSTI)

    Vaikmae, R.

    1992-03-01T23:59:59.000Z

    The Arctic holds extensive records of past climatic and environmental changes. Stable isotope variations in polar ice are in many cases important records of paleoclimatic information. Deep ice cores from Antarctica and Greenland, reaching back through the last glaciation, have provided valuable information about the Earth's climate in the past. This paper discusses the oxygen-18 variations in intermediate-depth ice cores from smaller ice caps of Svalbard, Severnaya Zemlya (North Land) and from the marginal area of the Antarctic ice sheet, covering the time span from 1000 to 8000 years B.P. All profiles studied clearly reflect the main climatic events during this time interval. However, small shifts in time exist between details on different curves. Most probably this is due to certain asynchronity in climatic changes in the various regions. There are extensive areas in the Arctic, especially in its eastern sector, where no glaciers currently exist and, possibly, in some areas never existed in the past either. These are the areas of permafrost where several forms of ice occur Within the ground. The source water for most types of ground ice originates from precipitation, but unlike glacier ice, the range of mechanisms for the formation of ground ice is very large, which considerably complicates the interpretation of their isotopic characteristics. For paleoclimatic and paleopermafrost reconstructions, the isotopic content of polygonal wedge ice seems to be most promising. The attempts to use isotopic records from segregated ice for paleoenvironmental research will also be discussed.

  10. A subtropical fate awaited freshwater discharged from glacial Lake Agassiz

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

    Condron, Alan [Univ. of Massachusetts, Amherst, MA (United States). Climate System Research Center, Dept. of Geosciences; Winsor, Peter [Univ. of Alaska, Fairbanks, AK (United States). Inst. of Marine Science, School of Fisheries and Ocean Sciences

    2011-02-01T23:59:59.000Z

    The 8.2 kyr event is the largest abrupt climatic change recorded in the last 10,000 years, and is widely hypothesized to have been triggered by the release of thousands of kilometers cubed of freshwater into the North Atlantic Ocean. Using a high-resolution (1/6) global, ocean-ice circulation model we present an alternative view that freshwater discharged from glacial Lake Agassiz would have remained on the continental shelf as a narrow, buoyant, coastal current, and would have been transported south into the subtropical North Atlantic. The pathway we describe is in contrast to the conceptual idea that freshwater from this lake outburst spread over most of the sub-polar North Atlantic, and covered the deep, open-ocean, convection regions. This coastally confined freshwater pathway is consistent with the present-day routing of freshwater from Hudson Bay, as well as paleoceanographic evidence of this event. Using a coarse-resolution (2.6) version of the same model, we demonstrate that the previously reported spreading of freshwater across the sub-polar North Atlantic results from the inability of numerical models of this resolution to accurately resolve narrow coastal flows, producing instead a diffuse circulation that advects freshwater away from the boundaries. To understand the climatic impact of freshwater released in the past or future (e.g. Greenland and Antarctica), the ocean needs to be modeled at a resolution sufficient to resolve the dynamics of narrow, coastal buoyant flows.

  11. Carbon dioxide, hydrographic, and chemical data obtained during the R/V Meteor Cruise 18/1 in the North Atlantic Ocean (WOCE Section A1E, September 1991)

    SciTech Connect (OSTI)

    Johnson, K.M.; Wallace, D.W.R. [Brookhaven National Laboratory, Upton, NY (United States); Schneider, B. [Institut fuer Ostseeforschung, Rostock-Warnemuende (Germany); Mintrop, L. [Institut fuer Meereskunde, Kiel (Germany); Kozyr, A. [Oak Ridge National Laboratory, TN (United States)

    1996-07-01T23:59:59.000Z

    The North Atlantic Ocean is characterized by an intense meridional circulation cell carrying near-surface waters of tropical and subtropical origin northward and deep waters of arctic and subarctic origin southward. The related {open_quotes}overturning{close_quotes} is driven by the sinking of water masses at high latitudes. The overturning rate and thus the intensity of the meridional transports of mass, heat, and salt, is an important control parameter for the modeling of the ocean`s role in climate. The Research Vessel (R/V) Meteor Cruise 18/1 was one in a series of cruises in the North Atlantic that started in March 1991 and continued until 1995. This data documentation discusses the procedures and methods used to measure total carbon dioxide (TCO{sub 2}) and total alkalinity (TALK) at hydrographic stations, as well as underway partial pressure of CO{sub 2} (pCO{sub 2}) measured during the RIV Meteor Cruise 18/1 in the North Atlantic Ocean (Section A1E). Conducted as part of the World Ocean Circulation Experiment (WOCE) and the German North Atlantic Overturning Rate Determination expedition, the cruise began in Reykjavik, Iceland, on September 2, 1991, and ended after 24 days at sea in Hamburg, Germany, on September 25, 1991. WOCE Zonal Section AlE began at 60{degrees}N and 42{degrees}30{prime} W (southeast of Greenland) and continued southeast with a closely spaced series of hydrocasts to 52{degrees}20{prime} N and 14{degrees}15{prime} W (Porcupine Shelves). Measurements made along WOCE Section AlE included pressure, temperature, salinity, and oxygen measured by a conductivity, temperature and depth (CTD) sensor; bottle salinity; oxygen; phosphate; nitrate; nitrite; silicate; TCO{sub 2}; TALK; and underway pCO{sub 2}. A total of 61 CTD casts were made, including 59 bottle casts and 2 calibration stations.

  12. EML Surface Air Sampling Program, 1990--1993 data

    SciTech Connect (OSTI)

    Larsen, R.J.; Sanderson, C.G.; Kada, J.

    1995-11-01T23:59:59.000Z

    Measurements of the concentrations of specific atmospheric radionuclides in air filter samples collected for the Environmental Measurements Laboratory`s Surface Air Sampling Program (SASP) during 1990--1993, with the exception of April 1993, indicate that anthropogenic radionuclides, in both hemispheres, were at or below the lower limits of detection for the sampling and analytical techniques that were used to collect and measure them. The occasional detection of {sup 137}Cs in some air filter samples may have resulted from resuspension of previously deposited debris. Following the April 6, 1993 accident and release of radionuclides into the atmosphere at a reprocessing plant in the Tomsk-7 military nuclear complex located 16 km north of the Siberian city of Tomsk, Russia, weekly air filter samples from Barrow, Alaska; Thule, Greenland and Moosonee, Canada were selected for special analyses. The naturally occurring radioisotopes that the authors measure, {sup 7}Be and {sup 210}Pb, continue to be detected in most air filter samples. Variations in the annual mean concentrations of {sup 7}Be at many of the sites appear to result primarily from changes in the atmospheric production rate of this cosmogenic radionuclide. Short-term variations in the concentrations of {sup 7}Be and {sup 210}Pb continued to be observed at many sites at which weekly air filter samples were analyzed. The monthly gross gamma-ray activity and the monthly mean surface air concentrations of {sup 7}Be, {sup 95}Zr, {sup 137}Cs, {sup 144}Ce, and {sup 210}Pb measured at sampling sites in SASP during 1990--1993 are presented. The weekly mean surface air concentrations of {sup 7}Be, {sup 95}Zr, {sup 137}Cs, {sup 144}Ce, and {sup 210}Pb for samples collected during 1990--1993 are given for 17 sites.

  13. A multi-resolution method for climate system modeling: application of spherical centroidal Voronoi tessellations

    SciTech Connect (OSTI)

    Ringler, Todd [Los Alamos National Laboratory; Ju, Lili [University of South Carolina; Gunzburger, Max [Florida State University

    2008-01-01T23:59:59.000Z

    During the next decade and beyond, climate system models will be challenged to resolve scales and processes that are far beyond their current scope. Each climate system component has its prototypical example of an unresolved process that may strongly influence the global climate system, ranging from eddy activity within ocean models, to ice streams within ice sheet models, to surface hydrological processes within land system models, to cloud processes within atmosphere models. These new demands will almost certainly result in the develop of multiresolution schemes that are able, at least regionally, to faithfully simulate these fine-scale processes. Spherical centroidal Voronoi tessellations (SCVTs) offer one potential path toward the development of a robust, multiresolution climate system model components. SCVTs allow for the generation of high quality Voronoi diagrams and Delaunay triangulations through the use of an intuitive, user-defined density function. In each of the examples provided, this method results in high-quality meshes where the quality measures are guaranteed to improve as the number of nodes is increased. Real-world examples are developed for the Greenland ice sheet and the North Atlantic ocean. Idealized examples are developed for oceanice shelf interaction and for regional atmospheric modeling. In addition to defining, developing, and exhibiting SCVTs, we pair this mesh generation technique with a previously developed finite-volume method. Our numerical example is based on the nonlinear, shallow water equations spanning the entire surface of the sphere. This example is used to elucidate both the potential benefits of this multiresolution method and the challenges ahead.

  14. A multi-resolution method for climate system modeling: application of Spherical Centroidal A multi-resolution method for climate system modeling: Application of Spherical Centroidal Voroni Tessellations

    SciTech Connect (OSTI)

    Ringler, Todd D [Los Alamos National Laboratory; Gunzburger, Max [FLORIDA STATE UNIV; Ju, Lili [UNIV OF SOUTH CAROLINA

    2008-01-01T23:59:59.000Z

    During the next decade and beyond, climate system models will be challenged to resolve scales and processes that are far beyond their current scope. Each climate system component has its prototypical example of an unresolved process that may strongly influence the global climate system, ranging from eddy activity within ocean models, to ice streams within ice sheet models, to surface hydrological processes within land system models, to cloud processes within atmosphere models. These new demands will almost certainly result in the develop of multi-resolution schemes that are able, at least regional to faithfully simulate these fine-scale processes. Spherical Centroidal Voronoi Tessellations (SCVTs) offer one potential path toward the development of robust, multi-resolution climate system component models, SCVTs allow for the generation of high quality Voronoi diagrams and Delaunay triangulations through the use of an intuitive, user-defined density function, each of the examples provided, this method results in high-quality meshes where the quality measures are guaranteed to improve as the number of nodes is increased. Real-world examples are developed for the Greenland ice sheet and the North Atlantic ocean. Idealized examples are developed for ocean-ice shelf interaction and for regional atmospheric modeling. In addition to defining, developing and exhibiting SCVTs, we pair this mesh generation technique with a previously developed finite-volume method. Our numerical example is based on the nonlinear shallow-water equations spanning the entire surface of the sphere. This example is used to elucidate both the potential benefits of this multi-resolution method and the challenges ahead.

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

    SciTech Connect (OSTI)

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

    2008-11-01T23:59:59.000Z

    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.