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159 Titles Match Your Query
Showing 1 through 50 of 159 Next
1. Ice Thickness and Surface Elevation, Southeastern Ross Embayment, West Antarctica [NSIDC-0099]
Ice surface elevation and ice thickness data are available for a portion of the West Antarctic Ice Sheet. Ice surface elevations and ice thickness data are derived from laser altimetry and radar sounding ...


2. Cosmogenic Radionuclides in the WAIS Divide Ice Core [welten_0636964]
This dataset includes a record of the concentrations of the cosmogenic radionuclides, 10Be (half-life = 1.36 x 10^6 year) and 36Cl (3.0 x 10^5 year), in samples from the West Antarctic Ice Sheet (WAIS) ...


3. Atmospheric CO2 over the last 1000 years: A record from the WAIS Divide ice core [brook_0739766]
These data are a decadally resolved record of atmospheric CO2 concentration for the last 1000 years, obtained from the West Antarctic Ice Sheet (WAIS) Divide shallow ice core.


4. Atmospheric hydroperoxides, formaldehyde and ozone in West Antarctica during summers 2000-2002 [ITASE_UCM_ATMOCHEM]
This data set consists of atmospheric observations of chemical trace gas species and meteorological parameters gathered on three 2-month-long ground traverses across the West Antarctic ...


5. Atmospheric, Snow and Firn Chemistry Studies for Interpretation of WAIS-Divide Cores, Antarctica [bales_0636929]
This award supports a project to understand how recent changes in atmospheric chemistry, and historical changes as recorded in snow, firn and ice, have affected atmospheric photochemistry over Antarctica. ...


6. Average Annual Layer Thickness of the WAIS Divide Ice Core from Visual Stratigraphy [NSIDC-0603]
This data set includes ~50 m averaged annual layer thicknesses down to 3403 m depth at the West Antarctic Ice Sheet (WAIS) Divide ice core as observed visually using diffuse transmitted light opposite ...


7. Biogenic Sulfur in the Siple Dome Ice Core [NSIDC-0201]
This data set is a continuous, high-resolution record of biogenic sulfur (methanesulfonate, known as MSA and CH3SO3-) in the 1000 m deep Siple Dome A (SDMA) core, covering 100,000 to 20 years BP. ...


8. Blue Ice Tephra II - Brimstone Peak [NSIDC-0114]
This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Brimstone Peak (75.888S 158.55E) in East Antarctica. Tephra samples were collected ...


9. Blue Ice Tephra II - Mt. DeWitt [NSIDC-0115]
This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Mt. DeWitt, Antarctica (77.12 deg S, 159.51 deg E). Tephra samples were collected ...


10. Molecular Level Characterization of Dissolved Organic Carbon and Microbial Diversity in the WAIS Divide Replicate Core - foreman_1141936 [foreman_1141936]
This award supports a detailed, molecular level characterization of dissolved organic carbon and microbes in Antarctic ice cores. NSF PLR Award Abstract #1141936


11. Mount Moulton Isotopes and Other Ice Core Data [NSIDC-0640]
This data set consists of water isotope ratios from the Mt. Moulton ice-trench record, as well as data from the Taylor Dome, EPICA Dome C, Talos Dome, Vostok, and EPICA Dronning Maud Land ice cores.


12. Physical Properties of the US ITASE Firn and Ice Cores from South Pole to Taylor Dome [meese_0538494]
This award supports a project for physical properties research on snow pits and firn/ice cores with specific objectives that include stratigraphic analysis including determination of accumulation ...


13. Physical Properties of the WAIS Divide Deep Core [alley_0539578]
This award supports a five-year collaborative project to study the physical-properties of the planned deep ice core and the temperature of the ice in the divide region of the West Antarctic Ice Sheet. ...


14. Physical and Structural Properties of the Siple Dome Ice Cores [NSIDC-0128]
This data set is part of the WAISCORES project, an NSF-funded project to understand the influence of the West Antarctic ice sheet on climate and sea level change. WAISCORES researchers acquired and ...


15. Polarimetric radar data collected near the Ross and Amundsen Sea Ice-Flow Divide (WAIS Divide), West Antarctica [WAISDivide_Polarimetric_RadarData]
This dataset contains ground-based, co-polarized radar data collected using pulse-modulated 60 MHz and 179 MHz radar at 19 sites around a deep “WAIS Divide” ice coring site near the Ross and Amundsen ...


16. Radar Studies of Internal Stratigraphy and Bed Topography along the US ITASE II Traverse [jacobel_0440304]
A project to perform ice radar studies of bedrock topography and internal layers along the second US ITASE traverse corridor extending from Taylor Dome to South Pole on the inland side of the Transantarctic ...


17. Collaborative Research: The Taylor Glacier, Antarctica, Horizontal Ice Core: Exploring changes in the Natural Methane Budget in a Warming World and Expanding the Paleo-archive [petrenko_1245659]
This award supports a project to use the Taylor Glacier, Antarctica, ablation zone to collect ice samples for a range of paleoenvironmental studies. A record of carbon-14 of atmospheric methane (14CH4) ...


18. IPY: Stability of Larsen C Ice Shelf in a Warming Climate [steffen_0732946]
Our ground penetrating radar surveys focused on key structural features of the ice shelf, including basal crevasses, marine ice and rifts. Here we present our published work on basal crevasses. ...


19. 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.


20. C-axis Fabric from Physical Properties Samples of the WAIS Divide Ice Core [NSIDC-0605]
This data set contains c-axis fabric measurements and grain area from the physical properties samples taken from the main West Antarctic Ice Sheet (WAIS) Divide ice core, WDC06A , Antarctica.


21. Carbonyl Sulfide Measurements in the Taylor Dome M3C1 Ice Core [NSIDC-0599]
The data set includes carbonyl sulfide (COS) measurements made on air extracted from 53 samples from the Taylor Dome M3C1 ice core. COS was measured in air from the Taylor Dome ice core to reconstruct ...


22. 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 ...


23. Low-res d15N and d18O of O2 in the WAIS Divide 06A Deep Core [NSIDC-0660]
This data set is a low-resolution set of measurements of d15N of N2 and d18O of O2, along with dO2/N and dAr/N2 supporting data, in the WAIS Divide 3405 m long ice core recovered in 2011. Data are ...


24. Micrometeorites from the South Pole Water Well [NSIDC-0113]
Micrometeorites dated between 1100 A.D. to 1500 A.D. were collected from the bottom of the South Pole Water Well in December 1995. Element analyses of 181 cosmic glass spherule and micrometeorite ...


25. Roosevelt Island Ice Core Density and Beta Count Data [NSIDC-0139]
This data set measures the radioactive decay of nuclear material from Northern and Southern hemisphere nuclear testing. Firn cores were taken from three locations on Roosevelt Island, an ice dome ...


26. South Pole Snow Pit, 1988 and 1989 [NSIDC-0086]
Information from 6-meter snow pits dug close to the South Pole in austral summer 1988-1989 by the Glacier Research Group of the University of New Hampshire (location - 38 km on grid 90 from South ...


27. Volcanic Records in the Siple and Taylor Dome Ice Cores [NSIDC-0126]
This data set is part of the WAISCORES project, an NSF-funded project to understand the influence of the West Antarctic ice sheet on climate and sea level change. WAISCORES researchers acquired and ...


28. WAIS Divide WDC06A Oxygen Isotope Record [NSIDC-0629]
This data set contains complete low resolution (0.25 to 100 cm) oxygen isotope data from the WAIS Divide Ice Core WDC06A, 0 to 3404.7 m depth. Also included is the WDC2014 timescale.


29. 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.


30. Concentration and Isotopic Composition of O2 and N2 in Trapped Gases of the Vostok Ice Core [NSIDC-0107]
These data describe the d18O of O2, d15N of N2, d18Oatm, and O2/N2 ratios of trapped gases in the Vostok ice core from East Antarctica. The investigator used a mass spectrometer to measure gas concentrations ...


31. 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 ...


32. Snowpit Chemistry - Methods Comparison, WAIS Divide, Antarctica [NSIDC-0620]
Measurements of a suite of trace elements in snow pit samples from WAIS Divide, Antarctica.


33. Borehole Temperature Measurement in WDC05A in January 2008 and January 2009 [NSIDC-0637]
This data set includes borehole temperature measurements performed in January 2008 and January 2009 at the West Antarctic Ice sheet divide from the 300 m hole WDC05A.


34. Carbon-Isotopic Composition of Atmospheric CO2 since the Last Glacial Maximum [NSIDC-0108]
These data describe the concentration and carbon-isotopic composition (d13CO2) of atmospheric CO2 from air trapped in ice between 27,000 and 1,300 years before present from Taylor Dome, Antarctica. ...


35. Decadal-Length Composite West Antarctic Air Temperature Records [NSIDC-0097]
This data set includes daily, monthly, and yearly mean surface air temperatures for four interior West Antarctic sites between 1978 and 1997. Data include air surface temperatures measured at the ...


36. Dominion Range Snow Pit and Ice Core, 1984 and 1985 [NSIDC-0087]
Information from snow pits and an ice core were collected at Dominion Range (location - 166 10' East, 85 15' South, elevation - 2,700m) in 1984-1985. The 6 meter snow pit was dug and sampled in 1984-1985 ...


37. Dronning Maud Land, Antarctica, Ice Core, 1991 and 1992 [NSIDC-0089]
Major ion concentration values (Na, Mg, Ca, Cl, NO3, SO4, MSA) were analyzed from a 20-meter ice core drilled in Dronning Maud Land, Antarctica (location - 65 01' East, 75 00' South, elevation - 2,900 ...


38. Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole [NSIDC-0098]
This data set includes d15N, d18O/2, dO2/N2/4, d40Ar/4, d38/Ar/2, d84Kr/48, and d132Xe/96 values for air drawn from the top 15 to 50 m of firn at the South Pole (summer and winter 1998) and a site ...


39. Firn Permeability and Density at WAIS Divide [NSIDC-0602]
This data set contains laboratory measurements of the density and permeability made from firn cores from the lock-in zone through pore close-off at the WAIS Divide and Megadunes sites.


40. Grain Size Full Population Dataset from WDC06A Core [NSIDC-0655]
This data set contains the complete grain-size data for all analyses conducted on the vertical thin sections of the WAIS Divide Ice Core WDC06A. Complete grain-size distributions are provided here ...


41. Ice Sheet Model Output, West Antarctic Ice Sheet Deglaciation [NSIDC-0639]
Ice-sheet model output of Antarctic Ice Sheet simulations spanning 30,000 years BP to 5000+ years in the future.


42. 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 ...


43. MODIS Mosaic of Antarctica 2008-2009 (MOA2009) Image Map [NSIDC-0593]
The MODIS Mosaic of Antarctica 2008-2009 (MOA2009) Image Map consists of two cloud-free digital image maps that show mean surface morphology and a quantitative measure of optical snow grain size on ...


44. Roosevelt Island Bedrock and Surface Elevations [NSIDC-0140]
This data set consists of bedrock and surface elevation readings taken by ground penetrating radar and Global Positioning System (GPS) on Roosevelt Island, an ice dome within the Ross Ice Shelf. Locations ...


45. Siple Dome Glaciology and Ice Stream History 1994, 1996 [NSIDC-0085]
The Siple Dome Glaciology and Ice Stream History project was part of Western Divide West Antarctic Ice Cores (WAISCORES), an NSF-funded project to understand the influence of the West Antarctic ice ...


46. Surface Temperature Reconstruction from Borehole Temperature Measurement in WDC05A [NSIDC-0638]
This data set shows the modeled surface temperature reconstruction from an inversion of the 300 m WDC05A borehole at the West Antarctic Divide Ice core site.


47. Tephra in Siple and Taylor Dome Ice Cores [NSIDC-0110]
This data set consists of electron microprobe geochemical analyses of glass shards sampled from Siple Dome and Taylor Dome ice cores during the 1999-2000 field season. Geochemical data are in tab-delimited ...


48. WAIS Divide Ice Core Vertical Thin Section Low-resolution Digital Imagery [NSIDC-0654]
This data set consists of a comprehensive, frame-stitched low?resolution set of digital images of vertical thin sections of the main core (WDC 06A) from WAIS Divide.


49. WDC 06A Mean Grain Size Data [NSIDC-0656]
The data set comprises the mean grain sizes at the sampled depths derived from vertical thin sections and reflects the final WDC 06A timescale.


50. Continuous, Ultra-high Resolution WAIS-Divide Ice Core Methane Record 9.8-67.2 ka BP [NSIDC-0628]
This data set contains methane concentrations from a West Antarctic Ice Sheet (WAIS) Divide ice core obtained by an online, continuous technique (Stowasser, et al. 2012).


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