Search Help
Thumbnail Icon Science Keywords > CRYOSPHERE > GLACIERS/ICE SHEETS > FIRN


Refine by Category
 
Refine by Full text

 

112 Titles Match Your Query
Showing 1 through 50 of 112 Next
1. MEaSUREs MODIS Mosaic of Antarctica 2013-2014 (MOA2014) Image Map, Version 1 [NSIDC-0730_1]
This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, includes two image maps - a snow grain size map and a surface morphology map - ...


2. MODIS Mosaic of Antarctica 2003-2004 (MOA2004) Image Map, Version 1 [NSIDC-0280_1]
This data set includes two image maps - a snow grain size map and a surface morphology map - provided at two different resolutions of 125 m and 750 m. The maps were produced from composited image ...


3. MODIS Mosaic of Antarctica 2008-2009 (MOA2009) Image Map, Version 1 [NSIDC-0593_1]
This data set includes two image maps - a snow grain size map and a surface morphology map - provided at two different resolutions of 125 m and 750 m. The maps were produced from composited image ...


4. MEaSUREs MODIS Mosaic of Greenland (MOG) 2005, 2010, and 2015 Image Maps V002 [NSIDC-0547_2]
This data set consists of two digital Greenland image maps each for the 2005, 2010, and 2015 measurement periods: the MOG Surface Morphology Image Map and the MOG Grain Size Image Map. The image maps ...


5. Collaborative Research: Deglaciation of the Ross Sea Embayment - Constraints from Roosevelt Island - award #0943466 [USAP-0943466_1]
This award supports a project to use the Roosevelt Island ice core as a glaciological dipstick for the eastern Ross Sea. Recent attention has focused on the eastern Ross Embayment, where there are ...


6. Revealing Late Holocence Climate Variability in Antarctica from Borehole Paleothermometry [USAP-1142085]
This award supports a project to continue the collection and analyses of firn temperature data from three automated firn thermal profiling units deployed in Dronning Maud Land sector of East Antarctica ...


7. 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 ...


8. GPR/GPS surveys and analysis of a firn core from the Gawn Ice Piedmont Glacier to examine Holocene climate history [K049_1999_2008_NZ_11]   PARENT METADATA
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 the ...


9. Holocene climate history from ice cores, snow profiles, the glacial system and local climate patterns from the Evans Piedmont Glacier, Victoria Land Coast Antarctica [K049_1999_2008_NZ_6]   PARENT METADATA
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 the ...


10. 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 METADATA
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 ...


11. Holocene climate history from ice cores, snow profiles, weather and glacier investigations (topography, mass balance and bedrock mapping) of the Victoria Lower Glacier, Victoria Land Coast, Antarctica [K049_1999_2008_NZ_2]   PARENT METADATA
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 two ...


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_2008_NZ_10]   PARENT METADATA
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. 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 [K049_1999_2012_NZ_10]   PARENT METADATA
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 ...


14. Holocene climate history obtained from ice cores, snow profiles (density, chemistry, structure), snow samples (dust origin) and climate measurements from the Baldwin Glacier, Victoria Land Coast, Antarctica [K049_1999_2008_NZ_3]   PARENT METADATA
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 the ...


15. Holocene climate history obtained from snow profiles (chemistry, dust flux, temperature, structure), firn cores and climate measurements from the Wilson Piedmont Glacier, Victoria Land Coast, Antarctica [K049_1999_2008_NZ_4]   PARENT METADATA
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 the ...


16. 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 METADATA
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.


17. Investigation of the Holocene climate history from analysis of the glacial system, ice cores and snow samples from the Whitehall Glacier, Victoria Land Coast, Antarctica [K049_1999_2008_NZ_9]   PARENT METADATA
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 the ...


18. WISSARD Hot Water Drill System design and overall description [Hot_Water_Drill_Systems_NSF_PLR_1146554_1.0]
A new, clean, hot-water drill system (HWDS) was developed by the ANDRILL Science Management Office, University of Nebraska-Lincoln, for use in the Whillans Ice Stream Subglacial Access Research Drilling ...


19. 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 ...


20. 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 ...


21. 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 ...


22. 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 ...


23. New Zealand International Transantarctic Scientific Expedition (NZ ITASE) - Climate variability measured from ice cores taken along the Victoria Land Coast [K049_1999_2008_NZ_1]   CHILD METADATA
The climate of the Victoria Land Coast is created by the interacting influences of the Dry Valleys, East Antarctic Ice Sheet and the Ross Sea. Slight changes can significantly alter local weather ...


24. 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 ...


25. Snow chemistry along a 3000 km long traverse inland East Antarctica - SMHI_IPY_JASE3 [SMHI_IPY_JASE3_1]
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. ...


26. Snow chemistry along a 3000 km long traverse inland East Antarctica - SnowChem [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. ...


27. 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 ...


28. AWS Data: Characteristics of Snow Megadunes and Their Potential Effect on Ice Core Interpretation [NSIDC-0283_1]
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 ...


29. 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 ...


30. Alkanes in Firn Air Samples, Antarctica and Greenland [NSIDC-0504_1]
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 ...


31. Analysis of Siple Dome Ice Core: Carbonyl Sulfide (COS), Methyl Chloride (CH3Cl), and Methyl Bromide (CH3Br) [NSIDC-0279_1]
This data set is part of the WAISCORES (West Antarctic Ice Sheet cores) project, research funded by the National Science Foundation (NSF) and designed to improve understanding of how the West Antarctic ...


32. 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 ...


33. Atmospheric Mixing Ratios of Hydroperoxides above the West Antarctic Ice Sheet [NSIDC-0394_1]
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 ...


34. 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. ...


35. Borehole Optical Stratigraphy at Siple Dome [UW_BOS_SDM]
This data set contains the Borehole Optical Stratigraphic (BOS) profile for a borehole (designated K) approximately 50 M from the main borehole at Siple Dome, West Antarctica. BOS is ...


36. 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 ...


37. 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 ...


38. Collaborative Research: Characteristics of Snow Megadunes and their Potential Effects on Ice Core Interpretation [scambos_0125570]
Field study and remote sensing measurements of an area of snow megadunes on the East Antarctic plateau provides a preliminary assessment of dune morphology, firn structure, and layering ...


39. Collaborative Research: Continued Study of Physical Properties of the WAIS Divide Deep Core [spencer_1043313]
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 (WDC06A) as observed visually using diffuse transmitted light ...


40. Collaborative Research: Norwegian-United States IPY Scientific Traverse: Climate Variability and Glaciology in East Antarctica - albert_0538495 [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 ...


41. Collaborative Research: Replicate Coring at WAIS Divide to Obtain Additional Samples at Events of High Scientific Interest [severinghaus_1043421]
This award supports a project to obtain samples of ice in selected intervals for replication and verification of the validity and spatial representativeness of key results in the WAIS Divide ice core, ...


42. Collaborative Research: Stable Isotopes of Ice in the Transition and Glacial Sections of the WAIS Divide Deep Ice Core (NSF Award Number 1043092) [WAIS_Divide_Isotope_Data]
WAIS Divide Core 06A 68,000 years ago through 2000C.E. Isotope Data from University of Washington (Eric Steig). Data set of 0.25 to 1 meter averages of oxygen isotope data from the WAIS Divide ice ...


43. 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 ...


44. Firn Air Inert Gas and Oxygen Observations from Siple Dome, 1996, and the South Pole, 2001 [NSIDC-0290_1]
This data set includes gas ratios in polar firn air: O2/N2, 15N/14N, 40Ar/N2, 40Ar/36Ar, 40Ar/38Ar, ...


45. Firn Air Study in the Megadunes Near Vostok, Antarctica [severinghaus_nsf0230452]
This award supports a study of the chemical composition of air in the snow layer (firn) in a region of "megadunes" near Vostok station, Antarctica. It will test the hypothesis that a deep ...


46. Firn Metamorphism: Microstructure and Physical Properties [albert_0944078]
This award supports a project to investigate the transformations from snow to firn to ice and the underlying physics controlling firn's ability to store atmospheric samples from the past.


47. Firn Temperatures on Iceberg C16 [MacAyealC16_firn_temp_0229546]
Since November of 2005, 12 thermistors were planted in the upper 2.5 meters of the firn on iceberg C16. Temperature data are collected every 20 minutes and are transmitted via ARGOS satellite relay. ...


48. Firn permeability at sites in West Antarctica [WAIS_Permeability]
This data set lists the measured snow and firn density and permeability at sites in West Antarctica. The measurements were done on consecutive ten- centimeter sampling in snow pits and ...


49. Fractionation of gases in polar ice during bubble close-off: firn air Ne, Kr and Xe observations [severinghaus_nsidc0290]
Gas ratios in air withdrawn from polar firn (snowpack) show systematic enrichments of Ne/N2, O2/N2 and Ar/N2, in the firn–ice transition region where bubbles are closing off. Air from ...


50. GPR and GPS Data: Characteristics of Snow Megadunes and their Potential Effects on Ice Core Interpretation [NSIDC-0282_1]
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 ...


Showing 1 through 50 of 112 Next
Click here for a static view of records.

-->