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80 Titles Match Your Query
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1. Snow chemistry along a 3000 km long traverse inland East Antarctica [SnowChem]
Surface snow for chemical analyzes was sampled with a spacing of approximately 50 kilometres along the entire traverse route. Snow was also sampled with high resolution in grids, pits and trenches. ...


2. Air sampling and analysis from Antarctic firn and ice [ASAC_1004]
Air from the ice and firn (compressed snow) of the Antarctic ice sheet will be extracted and measured for atmospheric composition in the past. Gases of interest are greenhouse gases (carbon dioxide, ...


3. Sedimentological and Glacial Geological Studies at the Law Dome Ice Margin [ASAC_339]
Metadata record for data from ASAC Project 339 See the link below for public details on this project. From the abstracts of some of the referenced papers: This paper ...


4. Combatant Col ice core trace chemistry and oxygen isotopes [combatant_col_ice_core_trace_chemistry_and_oxygen_isotopes]
Microsoft Excel spreadsheet detailing records of black carbon, dust, lead, and oxygen isotopes plotted versus depth and age in the Combatant Col ice core (Coast Range, southwest British Columbia, ...


5. NEEM Firn Core 2009S2 Density and Permeability [neem_firn_core_2009s2_density_and_permeability]
Density and permeability measurements with depth for the NEEM 2009S2 firn core.


6. Airborne Radar-Derived Accumulation Rates over Pine Island and Thwaites Glaciers [joughin_0631973]
This data set includes radar-derived annual accumulation rates over Thwaites Glacier between 1980 and 2009 and a gridded climatology (1985-2009) of snow accumulation over Pine Island and Thwaites ...


7. 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. ...


8. Data Report on 1981 Traverses From Casey For IAGP [iagp_casey_traverse_results]
The Casey Traverse Program was Australia's major contribution to the International Antarctic Glaciological Project, aimed at determining the galciological regime and processes, and deducting some ...


9. Collaborative Research: Norwegian-United States IPY Scientific Traverse: Climate Variability and Glaciology in East Antarctica [albert_0538495]
This award supports a project of scientific investigations along two overland traverses in East Antarctica: one going from the Norwegian Troll Station (72deg. S, 2deg. E) to the United States South ...


10. Collaborative Research: Anisotropy, Abrupt Climate Change, and the Deep Ice in West Antarctica [pettit_0940650]
This award supports a project to constrain the accumulation rate, thickness, and temperature history for Siple Dome using a vertical velocity profile that includes the effects of an evolving fabric ...


11. Anisotropy, Abrupt Climate Change, and the Deep Ice in West Antarctica [waddington_0636996]
This record includes two datasets and accompanying code. The anisotropic flow dataset provides velocity and fabric evolution of anisotropic ice for several numerical experiments. The experiments ...


12. Holocene climate history from investigations of the glacial system, ice cores and local climate patterns from Skinner Saddle, Victoria Land Coast Antarctica [K049_1999_2012_NZ_10]   PARENT DIF
To understand the drivers and consequences of climate change on timescales important to humans, the paleoclimate of ice cores, the glacial system and local climate patterns were analysed from Skinner ...


13. Ethane, propane, and n-butane firn-air data [Aydin_0739598]
The data file contains ethane, propane, and n-butane measurements in firn air from two Antarctic sites (South Pole and WAIS-D) and from Summit, Greenland. The WAIS-D and South Pole samples were collected ...


14. AWS Data: Characteristics of Snow Megadunes and Their Potential Effect on Ice Core Interpretation [NSIDC-0283]
The Antarctic megadune research was conducted during two field seasons, one in November 2002 and the other during the period of December 2003 through January 2004. The megadune field site is located ...


15. Alkanes in Firn Air Samples, Antarctica and Greenland [NSIDC-0504]
This data set contains ethane, propane, and n-butane measurements in firn air from the South Pole and the West Antarctic Ice Sheet (WAIS) Divide in Antarctica, and from Summit, Greenland. The WAIS ...


16. Nitrogen and Oxygen Gas Isotopes in the Siple Dome and Byrd Ice Cores, Antarctica [NSIDC-0407]   PARENT DIF
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) ...


17. Spatial Variability in Firn Properties from Borehole Optical Stratigraphy at the Inland WAIS Core Site [waddington_0538639]
Award Abstract #0538639 Spatial Variability in Firn Properties from Borehole Optical Stratigraphy at the Inland WAIS Core Site This award supports a project to study the patterns of accumulation ...


18. 2008 South Pole Firn Air Methane Isotopes [sowers_0739491]
This project will involve the measurement of methane and other trace gases in firn air collected at South Pole, Antarctica. The analyses will include: methane isotopes, light non-methane hydrocarbons ...


19. 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. ...


20. Bubble-number density in glacier ice under steady-state climate [LSSU_PSU_Bubble_number_density]
The data set here consists of bubble-number densities in glacier ice, in units of bubbles per cubic centimeter, based on firn densification and grain-growth modeling under steady-state climate conditions. ...


21. LSSU PSU firn depth-density data set [LSSU_PSU_Firn_data]
Excel file with firn depth-density data from 88 sites, with site location and name included in the accompanying pdf file.


22. Atmospheric Mixing Ratios of Hydroperoxides above the West Antarctic Ice Sheet [NSIDC-0394]
This data set contains atmospheric mixing ratios of hydrogen peroxide and methylhydroperoxide at 21 sites on the West Antarctic Ice Sheet (WAIS) were obtained from 2000 to 2003 during the US International ...


23. A Unique Opportunity for In-Situ Measurement of Seasonally-Varying Firn Densification at Summit, Greenland [waddington_0352584]
This is a collaborative proposal by Principal Investigators at the University of Washington and the Desert Research Institute. They will make detailed measurements of the temporal and spatial variations ...


24. Digital Pictures of snow surface taken from Microwave Radiometers during the JASE traverse 2007/2008 [NIPR_JASE_7]
Microwave radiometers were operated continuously. Digital camera was mounted on the microwave radiometers. Picture of snow surface condition was taken every 1 second entirely along the JASE traverse. ...


25. Microwave Radiometry data measured at frequencies and polarizations of 6 GHz (V and H), 18 GHz (V) and 36 GHz (V and H) during the JASE traverse 2007/2008 [NIPR_JASE_6]
Radio techniques were very important in the JASE traverse to detect subsurface conditions continuously. We used variety of radars and microwave radiometers to survey englacial and subglacial environment. ...


26. Radar sounding data of the ice sheet measure using Ground Penetrating Radar GSSI SIR-3000 with 270 MHz antenna, during the JASE traverse 2007/2008 [NIPR_JASE_5]
Radio techniques were very important in the JASE traverse to detect subsurface conditions continuously. We used variety of radars and microwave radiometers to survey englacial and subglacial environment. ...


27. Surface snow density measurements in the Antarctic Dome Fuji region during the summer of JASE traverse 2007/2008 [NIPR_JASE_16]
To better understand changes in snow density in summer and formation of snow stratification, we investigated temporal changes of surface snow density and its spatial distribution. Two types of snow-density ...


28. Investigation of physical structure of snow stratification during the JASE traverse 2007/2008 [NIPR_JASE_15]
To better understand physical structure of snow stratification, a 1m deep pit was dug at every camp site. The following items were investigated: (i) density with 3 cm resolution, (ii) dielectric permittivity ...


29. Investigation of physical structure of snow stratification during the JASE traverse 2007/2008 [NIPR_JASE_19]
To better understand physical structure of the snow stratification, two 4m deep pits and two 2m deep pits were dug at several locations. The following items were investigated: (i) density with 3 cm ...


30. Firn Accumulation Processes in Taylor Dome, Vostok and Siple Dome Ice Using Cosmogenic 14 C and 10Be as Tracers [lal_9909484]
This award is for support to develop a history of snow accumulation and physical processes occurring in the upper layers of ice deposited at several sites in Antarctica, using cosmogenic ...


31. 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 ...


32. d15N & d18O of air in the WAIS Divide ice core [severinghaus_0538657]
Major gas components of air data set, containing d15N, d18O of O2, dO2/N2, and dAr/N2 from the WAIS Divide ice core at high resolution. These data are used to constrain surface temperature, biosphere ...


33. Snow chemistry along a 3000 km long traverse inland East Antarctica [SMHI_IPY_JASE3]
Surface snow for chemical analyzes was sampled with a spacing of approximately 50 kilometres along the entire traverse route. Snow was also sampled with high resolution in grids, pits and trenches. ...


34. High Resolution Ice Thickness and Plane Wave Mapping of Ice Sheet Near-Surface Layers [Kanagaratnam_0230378]
This award supports a project to build and test a 12-18 GHz radar system with a plane wave antenna. This is a wideband radar operating over a frequency range of 12 to 18 GHz to detect ...


35. Moulton Gas Data [Sowers_0230021]
Data on the elemental and isotopic composition of O2, N2, Ar and CH4 are reported for three firn cores and two blu-ice cores from the Summit of Mt. Moulton. For the firn cores, we measured ...


36. O2/N2/Ar ratios, and the isotopic composition of O2 and N2, in firn air from the Megadunes site, Antarctica [O2_N2_Ar_Megadunes]
In a program led by Jeffrey Severinghaus, Scripps Institiution of Oceanography, firn air samples were collected at the Megadunes site, Antarctica. This site is marked by actively migrating ...


37. H2O2 and NO3 in Shallow Ice Cores at South Pole [H2O2_and_NO3_in_shallow_ice_cores_at_South_Pole]
Five shallow (~20-m) ice cores were collected in November/December 1999 near South Pole. All cores were collected within 20 km of the Pole and were located to sample high, moderate, and ...


38. H2O2 in South Pole Surface Snow (1994-2004) [H2O2_in_surface_snow_at_South_Pole]
Surface snow samples were collected at South Pole approximately once each week by onsite NOAA personnel. The samples were returned to our lab in Reno for analysis of hydrogen peroxide ...


39. NO3 in South Pole Surface Snow (2000-2004) [NO3_in_surface_snow_at_South_Pole]
Surface snow samples were collected approximately once each week at South Pole by onsite NOAA personnel. The samples were returned to our lab in Reno for analysis of nitrate concentration. ...


40. Borehole Optical Stratigraphy: Ice Microphysics, Climate Change, and the Optical Properties of Firn [waddington_0335330]
This award supported a study of the physical nature and environmental origin of optical features (light and dark zones) observed by video in boreholes in polar ice. These features appear to include ...


41. Siple Dome and Byrd ice core gas isotopes (d15N, d18O, dO2/N2, and dAr/N2) [0440975_severinghaus]   CHILD DIFs
Gas-isotopic data from the Siple Dome and Byrd ice cores covering roughly the last 100 ka, consisting of d15N (15N/14N) of N2, d18O (18O/16O) of O2, dO2/N2, and dAr/N2. Derived parameters including ...


42. Iceberg Firn Temperatures, Antarctica [NSIDC-0352]
Since November of 2005, 12 thermistors were planted in the upper 2.5 meters of the firn on iceberg C16, Antarctica. Temperature data are collected every 20 minutes and are transmitted via ARGOS satellite ...


43. Ross Ice Shelf Firn Temperature, Antarctica [NSIDC-0354]
Since November of 2006, 12 thermistors were planted in the upper 16 meters of the firn on the Ross Ice Shelf near its calving front. Temperature data are collected every 20 minutes and are transmitted ...


44. Twenty-Three Century-scale Ice Core Records of Hydrogen Peroxide (H2O2) from West Antarctica [NSIDC-0392]
This data set contains sub-annually resolved concentrations of hydrogen peroxide (H2O2), snow, firn and ice from 23 sites on the West Antarctic Ice Sheet (WAIS. Data were obtained from 2000 to 2003 ...


45. GPR and GPS Data: Characteristics of Snow Megadunes and their Potential Effects on Ice Core Interpretation [NSIDC-0282]
The Antarctic megadune research was conducted during two field seasons, one in November 2002 and the other in December 2003 through January 2004. The megadune field site is located on the East Antarctic ...


46. Snow and Firn Permeability: Characteristics of Snow Megadunes and their Potential Effects on Ice Core Interpretation [NSIDC-0299]
This data set contains firn physical properties measured in two meter snow pits and from deeper, 12- to 30-meter firn cores. The physical properties measured in the snow pits include density, permeability ...


47. Holocene climate history from ice cores, snow profiles, the glacial system and local climate patterns from the Mt Erebus Saddle, Antarctica [K049_1999_2008_NZ_7]   PARENT DIF
To understand the drivers and consequences of climate change on timescales important to humans, the paleoclimate of ice cores, the glacial system and local climate patterns were analysed from Mt Erebus ...


48. Investigation of dust inputs into McMurdo Sound, oxygen and hydrogen isotopes and snow/firn density from firn cores from Windless Bight, Antarctica [K049_1999_2008_NZ_8]   PARENT DIF
Two firn cores (21m and 20m) were recovered from Windless Bight to quantify dust input into the McMurdo Sound. In addition, oxygen and hydrogen isotopes as well as snow/firn density were measured.


49. Snow and ice chemistry data from Vestfonna, Svalbard from April 2007 to May 2009 (Finland) [kinnvika-snow-ice]
Snow pits 2007: the data from 2 snow pits (main summits of Vestfonna ice cap) include a description of snow physical properties (stratigraphy, density) and major ions chemistry. Shallow ice cores ...


50. MODIS Mosaic of Antarctica (MOA) Image Map [NSIDC-0280]
Staff from the National Snow and Ice Data Center (NSIDC) and the University of New Hampshire have assembled two digital image maps of surface morphology and optical snow grain size that cover the ...


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