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1. DISP Yearly Satellite Photographic Mosaics of Greenland 1962-1963 [NSIDC-0118]
The Declassified Intelligence Satellite Photographs (DISP) Yearly Satellite Photographic Mosaics of Greenland are composites of black-and-white photographs of Greenland taken from American satellites ...


2. EAGER: Are the Dry Valleys Getting Wetter? A Preliminary Assessment of Wetness Across the McMurdo Dry Valleys Landscape [NSF-ANT10-45215]
Intellectual Merit: Until recently, wetted soils in the Dry Valleys were generally only found adjacent to streams and lakes. Since the warm austral summer of 2002, numerous "wet spots" have been observed ...


3. Submarine and On-Land Volcanism in the West Antarctic Rift System: A Petrologic and Geochemical Study to Assess Melting Processes and Eruption History [NSF-ANT13-21588]
This project is a geochemical study of volcanic rocks from the West Antarctic Rift system. Its goal is to understand the link between mantle composition and the diverse, regional geodynamic processes, ...


4. Continuous flow measurements of MSA in the WAIS Divide (WDC06A) ice core [saltzman_0839122]
This dataset includes depths, ages, and concentrations of methanesulfonate. The analyses were conducted using the DRI continous melter system with electrospray MS/MS detection in negative ion mode. ...


5. Interaction of Ice Stream Flow with Heterogeneous Beds [NSIDC-0583]
This data set consists of outputs of several numerical models simulating ice stream flow over undulated bed, interaction of ice stream flow, and subglacial and supraglacial hydraulic systems. All ...


6. Major Ion Chemistry Data of WAIS Divide Ice Core Brittle Ice [NSIDC-0546]
The brittle ice section (577-1300 m) of the main WAIS Divide ice core (WDC06A) was analyzed for major ion concentrations with ion chromatography.


7. Measurements of Air and Snow Photochemical Species at WAIS Divide, Antarctica [NSIDC-0585]
This data set contains atmospheric mixing ratios of nitric oxide, ozone, hydrogen peroxide, methylhydroperoxide, and concentrations in surface snow and in snow pits of nitrate, nitrite, and hydrogen ...


8. Standing Water Depth on Larsen B Ice Shelf [NSIDC-0584]
This data set addresses why surface melt water lakes on ice shelves and ice sheets are notably influential in triggering ice-shelf break-up and modulating seasonal ice flow, and are thus principle ...


9. Temperature Profile of the West Antarctic Ice Sheet Divide Deep Borehole [NSIDC-0550]
This data set reports depth versus temperatures in the fluid-filled portion of the West Antarctic Ice Sheet Divide (WAIS?D) deep borehole (70 to 3328 meters depth). Data were acquired on December ...


10. WAIS Divide Laser Dust Logger Data [NSIDC-0540]
This data set consists of data from optical logs made at the WAIS Divide with a laser dust logger in clear ice at depths between 1403.58 meters and 3329.8 meters.


11. Cosmogenic Radionuclides in the Siple Dome A Ice Core [NSIDC-0307]   CHILD DIFs
This data set includes a record of cosmogenic radionuclide concentrations in the Siple Dome A ice core collected as part of the West Antarctic ice core program. The investigators measured profiles ...


12. Gases in Firn Air and Shallow Ice at the WAIS Drilling Site, Antarctica [NSIDC-0412]
This data set contains trace gas measurements of air extracted from ice core samples from the West Antarctic Ice Sheet Divide A core (WAIS-D 05A). The WAIS A core was dry-drilled at the WAIS site ...


13. Nitrogen and Oxygen Gas Isotopes in the Siple Dome and Byrd Ice Cores, Antarctica [NSIDC-0407]
This data set consists of Gas-isotopic data from the Siple Dome and and Greenland Ice Sheet Project 2 (GISP2) ice cores covering roughly the last 100,000 years (100 ka), consisting of d15N (15N/14N) ...


14. Sonic Log Data for the NEEM Corehole [pettit_1208635]
This dataset contains a record of speeds for vertically-propagating compression waves measured throughout the depth of ice that surrounds the NEEM corehole. Multiple logs provide redundant measurements ...


15. WAIS Divide Sonic Log Data [waddington_0944199]
This dataset contains a record of speeds for vertically-propagating compression-waves measured throughout the depth of ice that surrounds the WAIS-D corehole. Multiple logs provide redundant measurements ...


16. Abrupt Change in Atmospheric CO2 During the Last Ice Age [NSIDC-0539]
During the last glacial period atmospheric carbon dioxide and temperature in Antarctica varied in a similar fashion on millennial time scales, but previous work indicates that these changes were gradual. ...


17. Allan Hills Stable Water Isotopes [NSIDC-0541]
This data set includes stable water isotope values at 10 m resolution along an approximately 5 km transect through the main icefield of the Allan Hills Blue Ice Area, and at 15 cm within a 225 m ...


18. Depths to Ice-cemented Soils in High-elevation Quartermain Mountains, Dry Valleys, Antarctica [NSIDC-0529]
This data set is comprised of four surveyed valleys focusing on the depth to ground ice in the high-elevation Quartermain Mountains in the Beacon Valley area: University Valley, Farnell Valley, and ...


19. Major Ion Concentrations in 2004 South Pole Ice Core [NSIDC-0542]
A 180 m ice core drilled at South Pole in 2004/2005 was analyzed for concentrations of major ions at a depth resolution of approximately 2 cm. Measured ions are chloride, nitrate, sulfate, sodium, ...


20. Major Ion Concentrations in WDC05Q and WDC06A Ice Cores (WAIS Divide) [NSIDC-0544]
This data set contains major ion concentrations from the chemical analysis of two WAIS Divide ice cores (WDC05Q, 0-114 m; WDC06A, 0-129 m). The analytical technique is Mettler-based Continuous Flow ...


21. Siple Dome A (SDMA) Grain Orientation 640 - 790 Meters [NSIDC-0526]
This data set characterizes the microstructure in ice cores, in particular the microstructural locations of impurities, grain orientations, and strain gradients. The fabric of polycrystalline ice ...


22. Temperature of the West Antarctic Ice Sheet [NSIDC-0537]
This data set contains temperature-depth profile measurements taken in 22 boreholes drilled on the West Antarctic Ice Sheet, which exhibit two distinctly different thermal states of basal ice: a ...


23. Videos of Basal Ice in Boreholes on the Kamb Ice Stream in West Antarctica [NSIDC-0528]
This data set is a collection of video data of basal ice taken in a borehole on the Kamb Ice Stream in West Antarctica. Ice streams are an expression of the inherent instability of the West Antarctic ...


24. West Antarctica Ice Core and Climate Model Data [NSIDC-0536]
This data set includes ice core water isotope data from Antarctic ice cores covering the last 200 to 2000 years. It will also include model output data from the ECHAM4.6 General Circulation model.


25. Late Holocene Methane Concentrations from WAIS Divide and GISP2 [NSIDC-0586]
This data set measures methane concentrations in ancient air trapped in the West Antarctic Ice Sheet (WAIS) Divide and Greenland Ice Sheet Project (GISP2) ice cores; presenting two, high-resolution ...


26. Iceberg Capsize Kinematics and Energetics [MacAyeal_Iceberg_capsize]
To investigate the physics of iceberg capsize, a laboratory-scale experimental apparatus was created to simulate iceberg calving and capsize (and other phenomena) at a 1/100,000 scale. The data set ...


27. High-Resolution QuickBird Imagery and Related GIS Layers for Barrow, Alaska, USA [ARCSS304]
This data set contains high-resolution QuickBird imagery and geospatial data for the entire Barrow QuickBird image area (156.15? W - 157.07? W, 71.15? N - 71.41? N) and Barrow B4 Quadrangle (156.29? ...


28. High-Resolution Radar Imagery, Digital Elevation Models, and Related GIS Layers for Barrow, Alaska, USA [ARCSS302]
This product set contains high-resolution Interferometric Synthetic Aperture Radar (IFSAR) imagery and geospatial data for the Barrow Peninsula (155.39 - 157.48? W, 70.86 - 71.47? N) and Barrow Triangle ...


29. High-Resolution Rectified Aerial Photography for Collaborative Research of Environmental Change at Barrow, Alaska, USA [ARCSS306]
This data set includes aerial photography of Barrow, Alaska, which has been geocorrected to a 2002 QuickBird satellite image or Interferometric Synthetic Aperture Radar (IFSAR) imagery. Photography ...


30. Reduced-Resolution QuickBird Imagery and Related GIS Layers for Barrow, Alaska, USA [ARCSS305]
This data set contains reduced-resolution QuickBird imagery and geospatial data for the entire Barrow QuickBird image area 156.15? W - 157.07? W, 71.15? N - 71.41? N) and the Barrow B4 Quadrangle ...


31. Reduced-Resolution Radar Imagery, Digital Elevation Models, and Related GIS Layers for Barrow, Alaska, USA [ARCSS303]
This product set contains reduced-resolution Interferometric Synthetic Aperture Radar (IFSAR) imagery and geospatial data for the Barrow Peninsula (155.39 - 157.48? W, 70.86 - 71.47? N), for use in ...


32. Thermospheric Neutral Wind Observation from the Antarctic Peninsula [NCAR_TNWO_FPI_PAL]
Fabry-Perot Doppler Imager (FPI) observes wind speed and temperature at optical emission height by measuring Doppler shift and Doppler width of the auroral oxygen atom emission line. An FPI will ...


33. Ammonia Oxidation Versus Heterotrophy in Crenarchaeota Populations from Marine Environments West of the Antarctic Peninsula [NSF-ANT08-38996]
Ammonia oxidation is the first step in the conversion of regenerated nitrogen to dinitrogen gas, a 3-step pathway mediated by 3 distinct guilds of bacteria and archaea. Ammonia oxidation and the overall ...


34. RAPID: Linking the Movement Patterns and Foraging Behavior of Humpback Whales to their Prey across Multiple Spatial Scales within the LTER Study Region [NSF-ANT12-50208]
Whales play a central role in the ecology and biogeochemistry of the Southern Ocean. However, little is known regarding their distribution and behavior, in part because of challenges associated with ...


35. Collaborative Research: East Antarctic outlet glacier contributions to the Ross Sea from chronology of detrital grains [NSF-ANT10-43619]
Intellectual Merit: The PIs proposed a provenance study of glacial deposits in the Ross Embayment that will provide a broad scale geochronologic survey of detrital minerals in till to help characterize ...


36. NotApplicable RossSea:Bathymetry_Davey [RossSea_Bathymetry_Davey]   PARENT DIF
The NSF-supported research icebreaker operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic disciplines. ...


37. R/V Laurence M. Gould LMG1306 [LMG1306]   PARENT DIF
The NSF-supported research icebreaker Laurence M. Gould operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


38. R/V Laurence M. Gould LMG1309 [LMG1309]   PARENT DIF
The NSF-supported research icebreaker Laurence M. Gould operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


39. R/V Laurence M. Gould LMG1310 [LMG1310]   PARENT DIF
The NSF-supported research icebreaker Laurence M. Gould operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


40. R/V Laurence M. Gould LMG1311 [LMG1311]   PARENT DIF
The NSF-supported research icebreaker Laurence M. Gould operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


41. R/V Laurence M. Gould LMG1312 [LMG1312]   PARENT DIF
The NSF-supported research icebreaker Laurence M. Gould operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


42. R/V Nathaniel B. Palmer NBP1303 [NBP1303]   PARENT DIF
The NSF-supported research icebreaker Nathaniel B. Palmer operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


43. R/V Nathaniel B. Palmer NBP1304 - Seasonal Trophic Roles of Euphausia superba [NBP1304]   PARENT DIF
The NSF-supported research icebreaker Nathaniel B. Palmer operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


44. R/V Nathaniel B. Palmer NBP1309 [NBP1309]   PARENT DIF
The NSF-supported research icebreaker Nathaniel B. Palmer operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


45. R/V Nathaniel B. Palmer NBP1310A [NBP1310A]   PARENT DIF
The NSF-supported research icebreaker Nathaniel B. Palmer operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


46. Collaborative Research: Integrated High Resolution Chemical and Biological Measurements on the Deep WAIS Divide Core [priscu_0839075]
This collaborative research project (Collaborative Research: Integrated High Resolution Chemical and Biological Measurements on the Deep WAIS Divide Core) was funded by NSF-OPP and was part of the ...


47. Basal shear stress under Antarctic and Greenland glaciers infered from surface observations by means of inverse methods [sergienko_0934534]
This data set consists of basal shear stress under several regions in Antarctica and Greenland. The basal shear stress is obtained by means of the inverse methods using observed ice surface and bed ...


48. Fate of Drilling Fluids during the South McMurdo Sound Project (SMS) of the Antarctic Geological Drilling Program (ANDRILL) [NSF-ANT10-43740]
The PI proposes to utilize computer models used by hydrogeologists to establish the fate and transport of contamination and determine the extent of drilling fluid contamination in the ANDRILL SMS ...


49. Thermochronologic and modelling test for a Mesozoic West Antarctic Plateau [NSF-ANT07-39781]
This project studies formation of the TransAntarctic Mountains (TAM) through numerical modeling based on cooling histories of apatite mineral grains. The TAM are the highest and longest rift-related ...


50. Collaborative Research: Hunting in Darkness: Behavioral and Energetic Strategies of Weddell Seals in Winter [NSF-ANT07-39390]
Intellectual merit: Weddell seals (Leptonychotes weddellii) locate and capture sparsely distributed and mobile prey under shore-fast ice throughout the year, including the austral winter when ambient ...


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