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1. Glacier Photograph Collection
   The National Snow and Ice Data Center/World Data Center for Glaciology, Boulder (NSIDC/WDC) houses many photographic prints of glaciers, taken both from the air and from the ground. These photographs constitute an important historical record, as well as a data collection of interest to those ... more
   Spatial Coverage: Lat: (Unspecified, Unspecified), Lon: (Unspecified, Unspecified)
   Temporal Coverage: 1880 - 2005
   Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
   Distribution Format: JPEG, TIFF
   View Images or Search Holdings:
       View Sample Data in Google Earth

2. AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures (Tb)
   The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of global water and energy cycles. The AMSR-E Level 2A ... more
   Spatial Coverage: Lat: (-89.24, 89.24), Lon: (-180.00, 180.00)
   Temporal Coverage: 2002-06-18 - Continuing
   Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
   Distribution Format: HDF-EOS
   View Images or Search Holdings:
       Search and Order Inventory using SNOWI

3. Sea Ice Trends and Climatologies from SMMR and SSM/I
   NSIDC provides a suite of value-added products to aid in investigations of the variability and trends of sea ice cover. These products provide users with information about sea ice extent, total ice-covered area, ice persistence, monthly climatologies of sea ice concentrations, and ocean masks. The ... more
   Spatial Coverage: Lat: (-90.00, -39.23), Lon: (-180.00, 180.00)
   Temporal Coverage: 1978-10-26 - Continuing
   Resolution: Lat: 25 km, Lon: 25 km, Temporal: Unspecified
   Distribution Format: Flat binary, ASCII, ArcInfo export files
   View Images or Search Holdings:
       View Sample Northern Hemisphere Data in Atlas of the Cryosphere
       View Sample Southern Hemisphere Data in Atlas of the Cryosphere

4. Sea Ice Index
   The Sea Ice Index consists of graphics showing trends and anomalies in monthly mean Arctic and Antarctic sea ice concentration and extent, with a table of monthly mean extent in millions of square km. The NSIDC Near-Real-Time DMSP SSM/I Daily Polar Gridded Sea Ice Concentrations and the DMSP SSM/I ... more
   Spatial Coverage: Lat: (-90.00, -39.23), Lon: (-180.00, 180.00)
   Temporal Coverage: 1979 - Continuing
   Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
   Distribution Format: Unspecified

5. MODIS/Terra Snow Cover 8-Day L3 Global 500m Grid, Version 4
   MODIS/Terra Snow Cover 8-Day L3 Global 500m Grid (MOD10A2) contains data fields for maximum snow cover extent over an 8-day compositing period and a chronology of snow occurrence observations in HDF-EOS format, along with corresponding metadata. MOD10A2 consists of 1200 km by 1200 km tiles of 500 ... more
   Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
   Temporal Coverage: 2000-02-24 - 2006-12-31
   Resolution: Lat: 500 m, Lon: 500 m, Temporal: 8 Days
   Distribution Format: HDF-EOS
   View Images or Search Holdings:
       Search and Order Inventory using SNOWI

6. Images of Antarctic Ice Shelves
   Recent changes in the extent and stability of ice shelves in the Antarctic Peninsula prompted NSIDC to begin a monitoring program using data from the AVHRR Polar 1 km Data Set. NSIDC regularly reviews images of those ice shelves considered susceptible to rapid change due to climatic warming, and ... more
   Spatial Coverage: Lat: (Unspecified, Unspecified), Lon: (Unspecified, Unspecified)
   Temporal Coverage: Unspecified - Continuing
   Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
   Distribution Format: Unspecified

7. MODIS/Terra Snow Cover Daily L3 Global 500m Grid, Version 4
   MODIS/Terra Snow Cover Daily L3 Global 500m Grid (MOD10A1) contains snow cover and quality assurance (QA) data in HDF-EOS format along with corresponding metadata. Data files after 14 September 2003 include a snow albedo array with a beta status. MOD10A1 consists of 1200 km by 1200 km tiles of 500 ... more
   Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
   Temporal Coverage: 2000-02-24 - 2006-12-31
   Resolution: Lat: 500 m, Lon: 500 m, Temporal: Daily
   Distribution Format: HDF-EOS
   View Images or Search Holdings:
       Search and Order Inventory using SNOWI

8. Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data
   This data set is generated from brightness temperature data derived from Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR) and Defense Meteorological Satellite Program (DMSP) -F8, -F11 and -F13 Special Sensor Microwave/Imager (SSM/I) radiances at a grid cell size of 25 x 25 km. The data ... more
   Spatial Coverage: Lat: (-90.00, -39.23), Lon: (-180.00, 180.00)
   Temporal Coverage: 1991-12-03 - 1995-09-30
   Resolution: Lat: 25 km, Lon: 25 km, Temporal: Every other day
   Distribution Format: binary

9. Snow Data Assimilation System (SNODAS) Data Products at NSIDC
   This data set contains output from the NOAA National Weather Service's National Operational Hydrologic Remote Sensing Center (NOHRSC) SNOw Data Assimilation System (SNODAS). SNODAS is a modeling and data assimilation system developed by NOHRSC to provide the best possible estimates of snow cover ... more
   Spatial Coverage: Lat: (27.93, 52.00), Lon: (-124.73, -66.94)
   Temporal Coverage: 2003-10-01 - Continuing
   Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
   Distribution Format: ASCII text files

10. AMSR-E/Aqua Daily L3 Surface Soil Moisture, Interpretive Parameters, & QC EASE-Grids
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. Soil ... more
    Spatial Coverage: Lat: (-89.24, 89.24), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-18 - Continuing
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: daily
    Distribution Format: HDF-EOS
    View Images or Search Holdings:
        Search and Order Inventory using SNOWI

11. IMS Daily Northern Hemisphere Snow and Ice Analysis at 4 km and 24 km Resolution
    The National Oceanic and Atmospheric Administration/National Environmental Satellite, Data, and Information Service (NOAA/NESDIS) has an extensive history of monitoring snow and ice coverage. Accurate monitoring of global snow/ice cover is a key component in the study of climate and global ... more
    Spatial Coverage: Lat: (0.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1997-02 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Daily
    Distribution Format: GeoTIFF

12. Glacier Mass Balance and Regime Measurements and Analysis, 1945-2003
    This data set consists of glacier regime parameters observed between 1945 and 2003. Data include annual mass balances, ablation, accumulation, and equilibrium-line altitude of mountain and subpolar glaciers outside the two major ice sheets. All available sources of information, such as ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1945 - 2003
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: MS Excel files and PDF file

13. WAISCORES: Deep Ice Coring in West Antarctica
    The WAISCORES project is part of the National Science Foundation Office of Polar Programs' West Antarctic Ice Sheet (WAIS) initiative, which is aimed at understanding the influence of the West Antarctic ice sheet on climate and sea level change. WAISCORES researchers acquired and analyzed ice ... more
    Spatial Coverage: Lat: (-81.00, -81.00), Lon: (-149.00, -149.00)
    Temporal Coverage: 1996 - 1999
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII files

14. DMSP SSM/I Daily and Monthly Polar Gridded Sea Ice Concentrations
    DMSP SSM/I Daily and Monthly Polar Gridded Sea Ice Concentrations in polar stereographic projection currently include Defense Meteorological Satellite Program (DMSP) -F8, -F11, and -F13 daily and monthly sea ice concentrations. Using the Bootstrap algorithm, data gridded at a resolution of 25 x 25 ... more
    Spatial Coverage: Lat: (-90.00, -40.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1987-07-09 - Continuing
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: Monthly
    Distribution Format: HDF

15. DMSP SSM/I Pathfinder Daily EASE-Grid Brightness Temperatures
    The NOAA/NASA Pathfinder Program Special Sensor Microwave/Imager (SSM/I) Level 3 Equal-Area Scalable Earth-Grid (EASE-Grid) Brightness Temperatures consist of gridded data in one of three projections, Northern Hemisphere, Southern Hemisphere and full global. The data gridding technique maximizes ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1987-07-09 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

16. GLIMS Glacier Database
    Global Land Ice Measurements from Space (GLIMS) is an international project with the goal of surveying a majority of the world's estimated 160,000 glaciers. GLIMS uses data collected primarily by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument aboard the Terra ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1850 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ESRI shapefiles

17. Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent Version 3
    The Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent Version 3 product and Version 3.1 update combine snow cover and sea ice extent at weekly intervals from 23 October 1978 through 24 June 2007, and snow cover alone from 3 October 1966 through 23 October 1978. (Sea ice data were ... more
    Spatial Coverage: Lat: (0.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1978-10-23 - 2007-06-24
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: weekly
    Distribution Format: Flat binary (1-byte unsigned integer)
    View Images or Search Holdings:
        View Sample Data
        View Sample Data

18. Radarsat Antarctic Mapping Project Digital Elevation Model Version 2
    The high-resolution Radarsat Antarctic Mapping Project (RAMP) Digital Elevation Model (DEM) combines topographic data from a variety of sources to provide consistent coverage of all of Antarctica. Version 2 improves upon the original version by incorporating new topographic data, error ... more
    Spatial Coverage: Lat: (-90.00, -60.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1940-01-01 - 1999-01-01
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII text file (1 kilometer resolution)
    View Images or Search Holdings:
        View Sample Southern Hemisphere Data in Atlas of the Cryosphere

19. MODIS Mosaic of Antarctica (MOA) Image Map
    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 Antarctic continent and its surrounding islands. The MODIS Mosaic of Antarctica (MOA) image maps are ... more
    Spatial Coverage: Lat: (-90.00, -60.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2003-11-20 - 2004-02-29
    Resolution: Lat: 250 m, Lon: 250 m, Temporal: Unspecified
    Distribution Format: GeoTIFF and binary
    View Images or Search Holdings:
        View Sample Data
        View Sample Data

20. Circum-Arctic Map of Permafrost and Ground-Ice Conditions
    The Circum-Arctic permafrost and ground ice map is available via ftp in ESRI Shapefile format and Equal-Area Scalable Earth Grid (EASE-Grid) format. See the Format section for an explanation of the files provided via ftp. The circumpolar permafrost and ground ice data contribute to a unified ... more
    Spatial Coverage: Lat: (28.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ESRI shapefiles
    View Images or Search Holdings:
        View Sample Northern Hemisphere Data in Atlas of the Cryosphere

21. MODIS/Terra Snow Cover 5-Min L2 Swath 500m, Version 4
    MODIS/Terra Snow Cover 5-Min L2 Swath 500m (MOD10_L2) contains snow cover and quality assurance (QA) data, latitudes, and longitudes in HDF-EOS format, along with corresponding metadata. Latitude and longitude geolocation fields are at 5 km resolution, while all other fields are at 500 m ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2000-02-24 - 2006-12-31
    Resolution: Lat: 500 m, Lon: 500 m, Temporal: 5 min
    Distribution Format: HDF-EOS or GeoTIFF
    View Images or Search Holdings:
        Search and Order Inventory using SNOWI

22. Arctic and Southern Ocean Sea Ice Concentrations
    Monthly sea ice concentration for Arctic (1901 to 1995) and Southern oceans (1973 to 1990) were digitized on a standard 1-degree grid (cylindrical projection) to provide a relatively uniform set of sea ice extent for all longitudes, as a basis for hemispheric scale studies of observed sea ice ... more
    Spatial Coverage: Lat: (-90.00, -50.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1953-01-01 - 1995-08-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: monthly
    Distribution Format: Unspecified

23. National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format
    The U.S. National Ice Center (NIC) is an inter-agency sea ice analysis and forecasting center comprised of Dept. of Commerce/NOAA, Dept. of Defense/U.S. Navy, and Dept. of Homeland Security/U.S. Coast Guard components. Since 1972, NIC has produced Arctic and Antarctic sea ice charts. This data set ... more
    Spatial Coverage: Lat: (45.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1972 - 2004
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: binary

24. When the Weather is Uggianaqtuq: Inuit Observations of Environmental Change
    Uggianaqtuq (pronounced OOG-gi-a-nak-took) is a North Baffin Inuktitut word that means to behave unexpectedly, or in an unfamiliar way. From the perspective of many hunters and elders in the Arctic, the weather has been uggianaqtuq in recent years. In this interactive, multi-media CD-ROM, Inuit ... more
    Spatial Coverage: Lat: (64.28, 64.28), Lon: (-96.07, -96.07)
    Temporal Coverage: 1920 - 2001
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: html

25. Greenland 5 km DEM, Ice Thickness, and Bedrock Elevation Grids
    A Digital Elevation Model (DEM), ice thickness grid, and bedrock elevation grid of Greenland acquired as part of the PARCA program are available in ASCII text format at a 5 km grid spacing in a polar stereographic projection. DEM data are a combination of ERS-1 and Geosat satellite radar altimetry ... more
    Spatial Coverage: Lat: (60.00, 84.00), Lon: (-72.00, -15.00)
    Temporal Coverage: Unspecified - 1998-12-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII
    View Images or Search Holdings:
        View Sample Northern Hemisphere Data in Atlas of the Cryosphere

26. GLAS/ICESat L2 Global Land Surface Altimetry Data
    The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
    Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2003-02-20 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
    Distribution Format: scaled integer binary
    View Images or Search Holdings:
        Search and Order Inventory using SNOWI

27. World Glacier Inventory
    The World Glacier Inventory contains information for over 100,000 glaciers through out the world. Parameters within the inventory include geographic location, area, length, orientation, elevation,and classification of morphological type and moraines. The inventory entries are based upon a single ... more
    Spatial Coverage: Lat: (-60.00, 80.00), Lon: (-180.00, 180.00)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

28. Near Real-Time DMSP SSM/I Daily Polar Gridded Sea Ice Concentrations
    This data set provides a near real-time map of sea ice concentrations for both the Northern and Southern Hemispheres. Near real-time passive microwave brightness temperature data from the Defense Meteorological Satellite Program (DMSP) F13 Special Sensor Microwave/Imager (SSM/I) are received daily ... more
    Spatial Coverage: Lat: (-90.00, -39.23), Lon: (-180.00, 180.00)
    Temporal Coverage: 1999-04-05 - Continuing
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: Daily
    Distribution Format: binary

29. DMSP SSM/I Daily Polar Gridded Brightness Temperatures
    NSIDC produces daily gridded brightness temperature (T_B) data from orbital (swath) data generated by the Special Sensor Microwave/Imager (SSM/I) mounted on the Defense Meteorological Satellite Program (DMSP) F8, F11, and F13 platforms. The gridded brightness temperatures are distributed ... more
    Spatial Coverage: Lat: (-90.00, -39.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1987-07-09 - Continuing
    Resolution: Lat: 12.5 km, Lon: 12.5 km, Temporal: Daily
    Distribution Format: binary

30. Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I
    This sea ice concentration data set was derived using measurements from the Scanning Multichannel Microwave Radiometer (SMMR) on the Nimbus-7 satellite and from three Special Sensor Microwave/Imager (SSM/I) sensors on the Defense Meteorological Satellite Program's (DMSP) -F8, -F11, and -F13 ... more
    Spatial Coverage: Lat: (-90.00, -39.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1978-10-26 - Continuing
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: Every other day
    Distribution Format: binary

31. AARI 10-Day Arctic Ocean EASE-Grid Sea Ice Observations
    NOTE: This data set has been replaced by the Sea Ice Charts of the Russian Arctic in Gridded Format, 1933-2006 data set (http://nsidc.org/data/g02176.html). These gridded ice charts represent a reformatting of information contained in another data set, the Russian Arctic and Antarctic Research ... more
    Spatial Coverage: Lat: (68.00, 90.00), Lon: (-24.00, 110.00)
    Temporal Coverage: 1953-01-01 - 1990-12-30
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: thrice monthly
    Distribution Format: compressed tar

32. GIS Data from the Alaska North Slope
    This data set includes ArcInfo-formatted maps of the Kuparuk River Basin Region of the Alaskan North Slope (at 1:250,000 scale) and five subset study areas: the Upper Kuparuk River Basin Subregion (1:25,000), the Imnavait Creek Landscape (1:6,000), the Toolik Lake Landscape (1:5,000), the ... more
    Spatial Coverage: Lat: (69.00, 69.00), Lon: (-150.00, -150.00)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

33. GLAS/ICESat L1B Global Elevation Data
    The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
    Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2003-02-20 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
    Distribution Format: scaled integer binary
    View Images or Search Holdings:
        Search and Order Inventory using SNOWI

34. Concentration and Isotopic Composition of O2 and N2 in Trapped Gases of the Vostok Ice Core
    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 and isotopic compositions. Data extend to approximately 420,000 years ago. Two different ... more
    Spatial Coverage: Lat: (-72.28, -72.28), Lon: (106.48, 106.48)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII

35. Global Monthly EASE-Grid Snow Water Equivalent Climatology
    This data set comprises global, monthly satellite-derived snow water equivalent (SWE) climatologies from November 1978 through June 2003, with periodic updates released as resources permit. Global data are gridded to the Northern and Southern 25 km Equal-Area Scalable Earth Grids (EASE-Grids). ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1978 - 2003
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified
    View Images or Search Holdings:
        View Sample Data

36. Seasonal frost depths, midwestern USA
    This dataset includes frost tube data from 37 stations in the Upper Midwest (Minnesota, North Dakota, Wisconsin), USA. The responsible agency was the St. Paul District of the U.S. Army Corps of Engineers. These data were collected during 1971-1981 (no data for 1976/77) by cooperative observers who ... more
    Spatial Coverage: Lat: (43.77, 48.83), Lon: (-101.30, -90.18)
    Temporal Coverage: 1971-1 - 1981-1
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

37. Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors
    Daily ice motion vectors are computed from Advanced Very High Resolution Radiometer (AVHRR), Scanning Multichannel Microwave Radiometer (SMMR), Special Sensor Microwave/Imager (SSM/I), and International Arctic Buoy Programme (IABP) buoy data. Daily gridded fields combine data from all sensors, ... more
    Spatial Coverage: Lat: (-90.00, -53.20), Lon: (-180.00, 180.00)
    Temporal Coverage: 1978-10-25 - 2006-12-31
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: Mean grids are in daily, weekly, monthly, and yearly temporal scales.
    Distribution Format: Enhanced Postscript

38. Arctic Climatology Project - EWG Arctic Meteorology and Climate Atlas
    The Environmental Working Group (EWG) was established in June 1995 under the framework of the U.S.-Russian Joint Commission on Economic and Technological Cooperation. In January 1996, the EWG Arctic Climatology Group took on the task of compiling digital data on arctic regions to expand scientific ... more
    Spatial Coverage: Lat: (60.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1950-01-01 - 1995-12-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

39. Submarine Upward Looking Sonar Ice Draft Profile Data and Statistics
    This data set consists of upward looking sonar draft data collected by submarines in the Arctic Ocean. It includes data from both U.S. Navy and Royal Navy submarines. Maps showing submarine tracks are available. Data are provided as ice draft profiles and as statistics derived from the profile ... more
    Spatial Coverage: Lat: (Unspecified, Unspecified), Lon: (Unspecified, Unspecified)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

40. Antarctic 5-km Digital Elevation Model from ERS-1 Altimetry
    This data set provides a digital elevation model (DEM) for Antarctica to 81.5 degrees south latitude, at a resolution of 5 km. Approximately twenty million data points were used to generate this data set. Data points were derived from ERS-1 radar altimetry during the geodetic phase from March ... more
    Spatial Coverage: Lat: (-81.00, -65.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1994-03-01 - 1995-05-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Daily
    Distribution Format: ASCII

41. AMSR-E/Aqua Daily L3 12.5 km Brightness Temperature, Sea Ice Concentration, & Snow Depth Polar Grids
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite, provides global passive microwave measurements of land, ocean, and atmospheric variables for the investigation of water and energy cycles. This ... more
    Spatial Coverage: Lat: (-90.00, -39.23), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-19 - Continuing
    Resolution: Lat: 12.5 km, Lon: 12.5 km, Temporal: Daily
    Distribution Format: HDF-EOS
    View Images or Search Holdings:
        Search and Order Inventory using SNOWI
        View Sample Data in Google Earth

42. Active layer and permafrost properties, including snow depth, soil temperature, and soil moisture, Barrow, Alaska
    This data set contains soil temperature, soil moisture, thaw depth, and snow depth data collected at test sites near Barrow, Alaska, during the following years. Soil temperature data - 1963-1966, 1993 Soil moisture data - 1963 Thaw depth - 1962-1968, 1991-1993 Snow depth - 1963-1964 This ... more
    Spatial Coverage: Lat: (71.32, 71.32), Lon: (-156.60, -156.58)
    Temporal Coverage: 1991-01-01 - 1993-12-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII text files

43. Nenana Ice Classic: Tanana River Ice Annual Breakup Dates
    The Nenana river in the Interior of Alaska usually freezes over during October and November. The ice continues to grow throughout the winter accumulating an average maximum thickness of about 110 cm, depending upon winter weather conditions. The Nenana River Ice Classic competition began in 1917 ... more
    Spatial Coverage: Lat: (62.00, 62.00), Lon: (-149.00, -149.00)
    Temporal Coverage: 1917-04-01 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: annual
    Distribution Format: ascii

44. AMSR-E/Aqua Daily L3 Global Snow Water Equivalent EASE-Grids
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. These ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-19 - Continuing
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: daily
    Distribution Format: HDF-EOS
    View Images or Search Holdings:
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45. Reduced-Resolution Radar Imagery, Digital Elevation Models, and Related GIS Layers for Barrow, Alaska, USA
    This product set contains reduced-resolution Interferometric Synthetic Aperture Radar (IFSAR) imagery and geospatial data for the Barrow Peninsula (155.39 - 157.48 deg W, 70.86 - 71.47 deg N), for use in Geographic Information Systems (GIS) and remote sensing software. The primary IFSAR data sets ... more
    Spatial Coverage: Lat: (70.86, 71.47), Lon: (-157.48, -155.39)
    Temporal Coverage: 2002-07-27 - 2002-07-29
    Resolution: Lat: 1.25 m, 5 m, Lon: 1.25 m, 5 m, Temporal: 2,200 Hz
    Distribution Format: floating-point binary raster, GeoTIFF, ESRI Shapefiles

46. AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Parms, & QC EASE-Grids
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. Soil moisture and other land ... more
    Spatial Coverage: Lat: (-89.24, 89.24), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-18 - Continuing
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: Each swath spans 50 minutes.
    Distribution Format: HDF-EOS
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47. Atmospheric CO2 Trapped in the Ice Core from Siple Dome, Antarctica
    These data are CO2 concentration of the air occulded in Siple Dome ice core, Antarctica. The study was conducted between January 2001 and March 2003 on a deep ice core from Siple Dome Core A, located at 81.66 S, 148.82 W. The data covers up to the Termination II (around 140,000 years ago). The ... more
    Spatial Coverage: Lat: (-81.66, -81.66), Lon: (-148.82, -148.82)
    Temporal Coverage: 2001-01-01 - 2003-03-01
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII text file

48. Antarctic Ten Meter Temperature Data
    Firn temperature from a depth of about ten meters provides a close estimate of mean annual surface air temperature. This data collection is a compilation of temperature measurements dating back prior to 1956 and the International Geophysical Year, including measurements from several major recent ... more
    Spatial Coverage: Lat: (-90.00, -65.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1957 - 1997
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII text files and Jpg images

49. Ice Thickness and Surface Elevation, Southeastern Ross Embayment, West Antarctica
    Ice surface elevation and ice thickness data are available for a portion of the West Antarctic Ice Sheet. The investigators utilized a laser altimeter and ice-penetrating radar mounted to a Twin Otter aircraft to survey the ice sheet. Ice surface elevations and ice thickness data, derived from ... more
    Spatial Coverage: Lat: (-84.00, -80.00), Lon: (-134.00, -104.00)
    Temporal Coverage: 1991-12-27 - 1996-01-02
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII text files

50. NASA SCP Arctic and Antarctic Ice Extent from QuikSCAT, 1999-2004
    This data set provides sea ice extent for the Arctic (60-90° N) and Antarctic (52-90° S) in Scatterometer Image Reconstruction (SIR) binary image format, along with ASCII text files containing latitude and longitude coordinates along the sea ice edge, and browse images of SIR files in ... more
    Spatial Coverage: Lat: (-90.00, -52.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1999-07-19 - 2004-12-31
    Resolution: Lat: 2.225 km, 4.45 km, Lon: 2.225 km, 4.45 km, Temporal: Daily
    Distribution Format: ASCII, Flat binary (2-byte integer, big-endian byte order), PNG

51. Into the Arctic -- Information and Educational Activities for Studying Climate
    'Into the Arctic' contains educational materials about climate and climate history in the Arctic that use real data and questions from the Greenland Ice Sheet Project Two (GISP2). Beginning in 1993, scientists from all over the world participated in the GISP2 project to drill through 3,000 ... more
    Spatial Coverage: Lat: (Unspecified, Unspecified), Lon: (Unspecified, Unspecified)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

52. Northern Circumpolar Soils Map
    This data set consists of a circumpolar map of dominant soil characteristics, with a scale of 1:10,000,000, covering the United States, Canada, Greenland, Iceland, northern Europe, Russia, Mongolia, and Kazakhstan. The map was created using the Northern and Mid Latitude Soil Database. The map is ... more
    Spatial Coverage: Lat: (45.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

53. MODIS/Terra Snow Cover Daily L3 Global 0.05Deg CMG, Version 4
    MODIS/Terra Snow Cover Daily L3 Global 0.05Deg CMG (MOD10C1) consists of 7200-column by 3600-row global arrays of snow cover in a 0.05 deg climate modeling grid (CMG). Data and quality assurance (QA) fields are in HDF-EOS format, along with corresponding metadata. MODIS/Terra V004 data extend from ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2000-02-24 - 2006-12-31
    Resolution: Lat: 0.05 deg, Lon: 0.05 deg, Temporal: Daily
    Distribution Format: HDF-EOS
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54. AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of the Earth. NSIDC produces AMSR-E gridded brightness temperature data by interpolating AMSR-E data (6.9 GHz, 10.7 GHz, 18.7 GHz, ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-19 - Continuing
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: Daily
    Distribution Format: binary

55. Historical Arctic and Antarctic Surface Observational Data
    This product consists of meteorological data from 105 Arctic weather stations and 137 Antarctic stations, extracted from the National Climatic Data Center (NCDC)'s Integrated Surface Hourly (ISH) database. Variables include wind direction, wind speed, visibility, air temperature, dew point ... more
    Spatial Coverage: Lat: (59.98, 83.63), Lon: (-73.17, -13.58)
    Temporal Coverage: 1913-01-01 - 2002-12-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: AWS data recorded hourly; other sources vary
    Distribution Format: Tab-delimited ASCII text

56. GLAS/ICESat L1A Global Altimetry Data
    The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
    Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2003-02-20 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
    Distribution Format: scaled integer binary
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57. Airborne Surface Profiling of Alaskan Glaciers
    This data set consists of glacier outline, laser altimetry profile, and surface elevation change data for 46 glaciers in Alaska and British Columbia, Canada, measured with an airborne laser altimetry system. Six glaciers in the Alaska Range of central Alaska, two glaciers in the Wrangell Mountains ... more
    Spatial Coverage: Lat: (57.00, 61.50), Lon: (-149.25, -132.33)
    Temporal Coverage: 1994-05 - 1996-06
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

58. Snowfall and Snow Depth for Canada 1943-1982
    Data include monthly snowfall and end-of-month snow depth for 140 stations across Canada. Stations that maintained at least 20 years of data were chosen. The original data are from Atmospheric Environment Service Canadian Climate Centre and from NOAA's National Climatic Data Center. Data are ... more
    Spatial Coverage: Lat: (45.00, 75.00), Lon: (-142.00, -55.00)
    Temporal Coverage: 1943-01-01 - 1982-12-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

59. MODIS/Terra Snow Cover 8-Day L3 Global 0.05Deg CMG, Version 4
    MODIS/Terra Snow Cover 8-Day L3 Global 0.05Deg CMG (MOD10C2) consists of 7200-column by 3600-row global arrays of snow cover in a 0.05 deg climate modeling grid (CMG). Data and quality assurance (QA) fields are in HDF-EOS format, along with corresponding metadata. MODIS/Terra V004 data extend from ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2000-02-24 - 2006-12-31
    Resolution: Lat: 0.05 deg, Lon: 0.05 deg, Temporal: 8 days
    Distribution Format: HDF-EOS
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60. GEOSAT Radar Altimeter DEM Atlas of Antarctica North of 72.1 degrees South
    The Antarctic atlas consists of 28 digital elevation maps which cover all of Antarctica north of 72.1 degrees south at a resolution of three kilometers. Each map contains surface elevations and coordinates for one atlas page covering 16 degrees of longitude. Data were acquired by the Geodetic ... more
    Spatial Coverage: Lat: (-72.00, -65.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1985-04-01 - 1986-09-30
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: compressed tar file - latitude and longitude coordinates

61. Meteorological Data from the Russian Arctic, 1961-2000
    This data set contains monthly means of meteorological observation data from Russian stations from 1961-2000 (for most stations). The Russian station observations were provided by Vladimir Radionov, Arctic and Antarctic Research Institute (AARI), St. Petersburg, and include 2-meter air ... more
    Spatial Coverage: Lat: (59.97, 78.07), Lon: (14.25, 179.10)
    Temporal Coverage: 1961-01-01 - 2000-12-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII text in uniformat

62. AMSR-E/Aqua L2B Global Swath Rain Rate/Type GSFC Profiling Algorithm
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. This Level-2B swath product ... more
    Spatial Coverage: Lat: (-70.00, 70.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-18 - Continuing
    Resolution: Lat: 5.4 km, Lon: 5.4 km, Temporal: Each swath spans 50 minutes.
    Distribution Format: HDF-EOS
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63. International Ice Patrol (IIP) Iceberg Sightings Database
    The International Ice Patrol (IIP) collects information on iceberg activity in the North Atlantic. The IIP area of responsibility prior to 2006 was 40 to 52 degrees North latitude and 39 to 57 degrees West longitude. However, starting in 2006 and going forward, the IIP area of responsibility is 40 ... more
    Spatial Coverage: Lat: (Unspecified, Unspecified), Lon: (Unspecified, Unspecified)
    Temporal Coverage: 1960-01-01 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

64. MODIS/Aqua Snow Cover Daily L3 Global 500m Grid, Version 4
    MODIS/Aqua Snow Cover Daily L3 Global 500m Grid (MYD10A1) contains snow cover and quality assurance (QA) data in HDF-EOS format, along with corresponding metadata. Data files after 14 September 2003 include a snow albedo array with a 'beta' status. MYD10A1 consists of 1200 km by 1200 km tiles of ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-07-04 - 2006-12-31
    Resolution: Lat: 500 m, Lon: 500 m, Temporal: Daily
    Distribution Format: HDF-EOS
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65. AVHRR Polar 1 Km Level 1B Data Set
    

    Please note that the machine on which these AVHRR data are processed has reached its life expectancy and will no longer be available as of 02 June 2008 until further notice.

    NSIDC collects and archives 1.1 km High Resolution Picture Transmission (HRPT) and Local Area ... more
    Spatial Coverage: Lat: (-90.00, -50.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1992-04-01 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

66. Environmental Working Group Joint U.S.-Russian Arctic Sea Ice Atlas
    The Environmental Working Group (EWG) was established in June 1995 under the framework of the U.S.-Russian Joint Commission on Economic and Technological Cooperation. In order to expand scientific understanding of the Arctic, the EWG Arctic Climatology Project compiled digital data for arctic ... more
    Spatial Coverage: Lat: (45.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1950-01-01 - 1994-12-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

67. Permafrost Map of Alaska, USA
    This data set consists of a geo-referenced digital map and attribute data derived from the publication 'Permafrost map of Alaska'. The map is presented at a scale of 1 to 2,500,000 and shows the correlation of physiographic province to presence of permafrost across the state of Alaska. The digital ... more
    Spatial Coverage: Lat: (51.00, 71.40), Lon: (172.00, -130.00)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

68. GLAS/ICESat L2 Antarctic and Greenland Ice Sheet Altimetry Data
    The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
    Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2003-02-20 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
    Distribution Format: scaled integer binary
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69. Land Resources of Russia -- Maps of Permafrost and Ground Ice
    This data set includes maps of permafrost extent, permafrost temperature, the permafrost boundary, and ground ice thickness for all of Russia. The maps are ESRI Shapefiles, which were digitized from paper maps taken from the World Atlas of Snow and Ice Resources, 1997, Institute of Geography, ... more
    Spatial Coverage: Lat: (41.20, 77.70), Lon: (27.30, -169.50)
    Temporal Coverage: 1996-1 - 1996-1
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ESRI shapefiles

70. GLERL Great Lakes Air Temperature/Degree Day Climatology, 1897-1983
    Daily maximum and minimum temperatures for 25 stations around the Great Lakes, 1897 to 1983, were given to NSIDC by the NOAA Great Lakes Environmental Research Laboratory (GLERL), Ann Arbor, MI. Daily data can be used to produce daily maximum, minimum and mean temperatures, and seasonal ... more
    Spatial Coverage: Lat: (41.00, 49.00), Lon: (-93.00, -76.00)
    Temporal Coverage: 1897-01-01 - 1983-12-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

71. High-Resolution QuickBird Imagery and Related GIS Layers for Barrow, Alaska, USA
    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° W - 156.89° W, 71.25° N - 71.40° N), for use in Geographic Information Systems (GIS) and remote ... more
    Spatial Coverage: Lat: (71.15, 71.41), Lon: (-157.07, -156.15)
    Temporal Coverage: 2002-08-01 - 2002-08-02
    Resolution: Lat: 0.7 m, 2.8 m, Lon: 0.7 m, 2.8 m, Temporal: Unspecified
    Distribution Format: floating-point binary raster, ArcInfo Grid, GeoTIFF, ESRI Shapefiles

72. NOAA/NMC/CAC Arctic and Antarctic Monthly Sea Ice Extent, 1973-1990
    Sea ice extent from January 1973 through August 1990 was digitized from weekly operational sea ice charts produced by the Navy/NOAA Joint Ice Center. Charts were digitized by hand using a 1° latitude x 2.5° longitude grid. The grid boxes were then summed in 1° latitude x 10° longitude slices, ... more
    Spatial Coverage: Lat: (Unspecified, Unspecified), Lon: (Unspecified, Unspecified)
    Temporal Coverage: 1973-01-31 - 1990-08-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

73. Land Resources of Russia -- Maps of Soil Characteristics
    This data set consists of maps of various soil characteristics for all of Russia. The maps are available as ESRI Shapefiles and they are accompanied by databases of soil profiles and related characteristics. The soil classification Shapefile was generalized from the standard 1:2,500,000 soil map ... more
    Spatial Coverage: Lat: (41.20, 77.70), Lon: (27.30, -169.50)
    Temporal Coverage: 1988-1 - 2002-1
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

74. AMSR-E/Aqua L2B Global Swath Ocean Products derived from Wentz Algorithm
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. ... more
    Spatial Coverage: Lat: (-89.24, 89.24), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-18 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Each swath spans 50 minutes.
    Distribution Format: HDF-EOS
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75. Reduced-Resolution QuickBird Imagery and Related GIS Layers for Barrow, Alaska, USA
    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 (156.29° W - 156.89° W, 71.25° N - 71.40° N), for use in Geographic Information Systems (GIS) and ... more
    Spatial Coverage: Lat: (71.15, 71.41), Lon: (-157.07, -156.15)
    Temporal Coverage: 2002-08-01 - 2002-08-02
    Resolution: Lat: 10 m, Lon: 10 m, Temporal: Unspecified
    Distribution Format: floating-point binary raster, GeoTIFF, ESRI Shapefiles

76. Rand Corporation Mean Monthly Global Snow Depth
    All available monthly snow depth climatologies were integrated by the Rand Corporation, in the early 1980s, into one global (excluding Africa and South America) digital data set gridded at 4° latitude x 5° longitude. The U.S. Army Corps of Engineers monthly climatologies were a ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Monthly
    Distribution Format: ASCII text

77. Monthly Mean Precipitation Sums at Russian Arctic Stations, 1966-1990
    This data set contains monthly mean precipitation sums from Russian arctic stations. Precipitation measurements were acquired using a Tretyakov precipitation gauge. Data have not been adjusted for wind bias. Data from 1967 and later are corrected for wetting loss (this correction was made by ... more
    Spatial Coverage: Lat: (50.17, 69.77), Lon: (38.25, 164.17)
    Temporal Coverage: 1966-01 - 1990-12
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: monthly
    Distribution Format: ASCII text

78. CLPX-Ground: ISA Main Meteorological Data
    This data set contains meteorological observations at ten sites throughout the Small Regional Study Area (SRSA) of the Cold Land Processes Field Experiment (CLPX) in Fraser, Colorado, USA. Nine identical meteorological towers were located close to the center of each Intensive Study Area (ISA). ... more
    Spatial Coverage: Lat: (39.50, 41.00), Lon: (-107.50, -105.00)
    Temporal Coverage: 2002-09-20 - 2003-10-01
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII (csv files)

79. MODIS/Aqua Snow Cover 8-Day L3 Global 500m Grid, Version 4
    MODIS/Aqua Snow Cover 8-Day L3 Global 500m Grid (MYD10A2) contains data fields for maximum snow cover extent over an eight-day compositing period and a chronology of snow occurrence observations in HDF-EOS format, along with corresponding metadata. MYD10A2 consists of 1200 km by 1200 km tiles of ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-07-04 - 2006-12-31
    Resolution: Lat: 500 m, Lon: 500 m, Temporal: 8 Days
    Distribution Format: HDF-EOS
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80. Western Italian Alps Monthly Snowfall and Snow Cover Duration
    This data set consists of snow observations for 18 stations in the western Italian Alps. Two types of data are included: monthly snowfall amounts and monthly snow cover duration in days. The period of record varies with each station, with the longest station record including data from 1877 to ... more
    Spatial Coverage: Lat: (44.19, 46.42), Lon: (6.70, 8.44)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: monthly
    Distribution Format: Unspecified

81. March through August Ice Edge Positions in the Nordic Seas, 1750-2002
    This product contains ice edge coordinates for the Nordic Seas from 1750 through 2002 for months March through August. Ice edge in this product is defined as the outer boundary of ice having at least 30% ice concentration. Data are derived from publicly available sea ice products and use ... more
    Spatial Coverage: Lat: (57.70, 86.00), Lon: (-36.20, 64.20)
    Temporal Coverage: 1750 - 2002
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: GIS format shapefiles

82. Carbon-Isotopic Composition of Atmospheric CO2 since the Last Glacial Maximum
    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. Data are used to investigate the causes of the CO2 concentration increase that occurred during the ... more
    Spatial Coverage: Lat: (-77.80, -77.80), Lon: (158.71, 158.71)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII, Excel

83. GLAS/ICESat L1B Global Waveform-based Range Corrections Data
    The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
    Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2003-02-20 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
    Distribution Format: scaled integer binary
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84. GLAS/ICESat 500 m Laser Altimetry Digital Elevation Model of Antarctica
    The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and land Elevation Satellite (ICESat) provides global measurements of elevation, and repeats measurements along nearly-identical tracks; its primary mission is to measure changes in ice volume (mass balance) over time. This ... more
    Spatial Coverage: Lat: (-86.00, -63.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2003-02 - 2005-06
    Resolution: Lat: 500 m, Lon: 500 m, Temporal: Unspecified
    Distribution Format: binary

85. Reconstructed North American, Eurasian, and Northern Hemisphere Snow Cover Extent, 1915-1997
    This data set contains time series of monthly snow cover extent (SCE) for North America, Eurasia, and the Northern Hemisphere from 1915 to 1997, based on snow cover reconstruction and NOAA satellite data. The reconstruction method used in situ snow depth and daily climate data from the U.S.A., ... more
    Spatial Coverage: Lat: (0.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1915-01 - 1997-12
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII text file

86. Active Layer Monitoring, Arctic and Subarctic Canada
    This project involves measuring regional and site variability in maximum annual active layer development and vertical surface movement over permafrost, and monitoring sites over time in order to observe trends. The project records maximum thaw penetration, maximum heave and subsidence, late season ... more
    Spatial Coverage: Lat: (61.88, 69.72), Lon: (-134.95, -121.60)
    Temporal Coverage: 1991 - 2007
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: RTF

87. Landscape Map of the Russian Arctic Coastal Zone
    The map consists of ESRI Shapefiles of landscape polygons (in landscape unit types) for the Russian Arctic coastal zone (scale 1:4,000,000). The map is based on a digital circumpolar Lambert projection map. Polygons have a single attribute (LAND-ID). LAND-ID is an eight-character code that ... more
    Spatial Coverage: Lat: (50.00, 90.00), Lon: (15.00, 169.00)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

88. Maps of Geocryological Regions and Classifications in China
    This data set includes digital versions of 'The Map of Geocryological Regionalization and Classification in China' from Geocryology in China by Y. Zhou, D. Guo, G. Qiu, G. Cheng, and S. Li. Included are ESRI Shapefiles of meterological stations, permafrost regions, and classification of frozen ... more
    Spatial Coverage: Lat: (18.19, 53.48), Lon: (73.45, 135.09)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

89. Canadian Geothermal Data Collection: Deep permafrost temperatures and thickness of permafrost
    Precision temperature measurements have been made in some 150 deep wells and holes drilled in the course of natural resource exploration in the permafrost regions of Northern Canada. In most cases, holes were logged by lowering a probe containing a regions of Northern Canada. In most cases, holes ... more
    Spatial Coverage: Lat: (60.00, 85.00), Lon: (-151.00, -60.00)
    Temporal Coverage: 1965-1 - 1997-1
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

90. AMSR-E/Aqua 5-Day L3 Global Snow Water Equivalent EASE-Grids
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. These ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-19 - Continuing
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: daily
    Distribution Format: HDF-EOS
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91. Northern Hemisphere EASE-Grid Annual Freezing and Thawing Indices, 1901 - 2002
    This data set contains annual freezing and thawing indices for each year from 1901 to 2002 on the 25 km resolution Equal-Area Scalable Earth Grid (EASE-Grid). Annual freezing and thawing indices are defined as the cumulative number of degree-days when air temperatures are below and above 0 degrees ... more
    Spatial Coverage: Lat: (0.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 1901-01-01 - 2002-12-31
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: annual
    Distribution Format: ASCII

92. AMSR-E/Aqua Monthly L3 Global Snow Water Equivalent EASE-Grids
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. These ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-19 - Continuing
    Resolution: Lat: 25 km, Lon: 25 km, Temporal: daily
    Distribution Format: HDF-EOS
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93. Borehole temperatures in deep wells of Western Siberia, Russia, 1960-1995
    This data set is a database of the permafrost and geothermal conditions of the oil and gas deposits of Western Siberia. Data were taken from 736 plots, each having from one to ten wells. The data set includes soil and rock temperatures at 20, 50, 100, 200, 300, 400, 500, 1000, and 3000 meters; ... more
    Spatial Coverage: Lat: (60.00, 72.00), Lon: (67.00, 80.00)
    Temporal Coverage: 1960 - 1995
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: Unspecified

94. AMSR-E/Aqua L1A Raw Observation Counts
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric parameters for the investigation of global water and energy cycles. AMSR-E Level 1A ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2003-06-19 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Each swath spans approximately 50 minutes.
    Distribution Format: HDF

95. MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km, Version 4
    MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km (MOD29) contains the following fields: sea ice by reflectance, sea ice by reflectance pixel quality assurance (QA), ice surface temperature (IST), IST pixel QA, sea ice by IST, combined sea ice, latitudes, and longitudes in HDF-EOS format, along with ... more
    Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2000-02-24 - 2006-12-31
    Resolution: Lat: 1 km, Lon: 1 km, Temporal: 5 minutes
    Distribution Format: HDF-EOS
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96. GLAS/ICESat L2 Global Cloud Heights for Multi-layer Clouds
    The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
    Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
    Temporal Coverage: 2003-02-20 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
    Distribution Format: scaled integer binary
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97. AMSR-E/Aqua Daily L3 6.25 km 89 GHz Brightness Temperature Polar Grids
    The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. This ... more
    Spatial Coverage: Lat: (-90.00, -39.23), Lon: (-180.00, 180.00)
    Temporal Coverage: 2002-06-19 - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: HDF-EOS
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98. Dronning Maud Land, Antarctica, Ice Core, 1991 and 1992
    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 m a.s.l.). The core was drilled during the austral summer 1991-1992. Major ion analysis was by ... more
    Spatial Coverage: Lat: (-75.00, -75.00), Lon: (65.00, 65.00)
    Temporal Coverage: 1991-11-01 - 1992-01-31
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: ASCII text file

99. Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole
    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 at Siple Dome (summers 1996 and 1998). Data also include related firn temperature measurements. The ... more
    Spatial Coverage: Lat: (-81.67, -81.67), Lon: (-148.77, -148.77)
    Temporal Coverage: Unspecified - Continuing
    Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
    Distribution Format: MS Excel or ASCII text files

100. GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of Greenland
     The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and land Elevation Satellite (ICESat) provides global measurements of elevation, and repeats measurements along nearly-identical tracks; its primary mission is to measure changes in ice volume (mass balance) over time. This ... more
     Spatial Coverage: Lat: (60.00, 83.00), Lon: (-73.00, -11.00)
     Temporal Coverage: 2003-02 - 2005-06
     Resolution: Lat: 1 km, Lon: 1 km, Temporal: Unspecified
     Distribution Format: binary

101. MODIS/Aqua Snow Cover 5-Min L2 Swath 500m, Version 4
     MODIS/Aqua Snow Cover 5-Min L2 Swath 500m (MYD10_L2) contains snow cover and quality assurance (QA) data, latitudes, and longitudes in HDF-EOS format, along with corresponding metadata. Latitude and longitude geolocation fields are at 5 km resolution, while all other fields are at 500 m ... more
     Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2002-07-04 - 2006-12-31
     Resolution: Lat: 500 m, Lon: 500 m, Temporal: 5 min
     Distribution Format: HDF-EOS and GeoTIFF
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102. Comprehensive Ocean - Atmosphere Data Set (COADS) LMRF Arctic Subset
     The Comprehensive Ocean - Atmosphere Data Set (COADS) LMRF Arctic subset contains marine surface weather reports for the region north of 65 degrees N from ships, drifting ice stations, and buoys. COADS is the result of an ongoing project to assemble and reduce machine-readable portions of the ... more
     Spatial Coverage: Lat: (65.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 1950-01-01 - 1995-12-31
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Unspecified

103. High-Resolution Rectified Aerial Photography for Collaborative Research of Environmental Change at Barrow, Alaska, USA
     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 included in the set is from these specific dates, from 1948 to 1997: 4 August 1948, 29 July 1949, ... more
     Spatial Coverage: Lat: (70.90, 71.45), Lon: (-157.47, -155.40)
     Temporal Coverage: 1997-07-16 - 1997-07-16
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: GeoTIFF and ESRI Shapefiles

104. International Ice Patrol Iceberg Drift Tracks
     The International Ice Patrol (IIP) tracks, plots and predicts iceberg positions in the North Atlantic Ocean. The IIP area of responsibility is 40 to 52 degrees North, 39 to 57 degrees West. During several years (1977, 1978, 1980, 1983, and 1989) individual icebergs were 'tagged' with buoys ... more
     Spatial Coverage: Lat: (40.00, 52.00), Lon: (-57.00, -39.00)
     Temporal Coverage: 1977-02-25 - 1989-07-24
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Unspecified

105. AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids
     The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of land, ocean, and atmospheric variables for the investigation of water and energy cycles. This Level-3 ... more
     Spatial Coverage: Lat: (-90.00, -39.23), Lon: (-180.00, 180.00)
     Temporal Coverage: 2002-06-19 - Continuing
     Resolution: Lat: 12.5 km, Lon: 12.5 km, Temporal: Daily
     Distribution Format: HDF-EOS
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106. AWI Moored ULS Data, Greenland Sea and Fram Strait, 1991-2002
     This data set consists of Upward Looking Sonar (ULS) data from 11 moorings in the Greenland Sea. Parameters in the processed data files include ice draft, water pressure, and water temperature. Raw data files with sonar travel time, and files with draft frequency of occurrence, are available as ... more
     Spatial Coverage: Lat: (74.40, 79.00), Lon: (2.00, 12.98)
     Temporal Coverage: 1991-08 - 2002-09
     Resolution: Lat: 74 25'N, Lon: 10 15'W, Temporal: Unspecified
     Distribution Format: ASCII text files

107. GLAS/ICESat L2 Sea Ice Altimetry Data
     The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
     Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2003-02-20 - Continuing
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
     Distribution Format: scaled integer binary
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108. Global Annual Freezing and Thawing Indices
     The total annual freezing and thawing indices are defined as the cumulative number of degree-days when air temperatures are below and above zero degrees Celsius. The total annual freezing index has been widely used to predict permafrost distribution; estimate the maximum thickness of sea, lake, ... more
     Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: Unspecified - Continuing
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: annual average
     Distribution Format: Unspecified

109. Great Lakes Ice Charts
     Charts show ice extent and concentration three times weekly during the ice season, for all lakes except Ontario, from the 1973/74 ice season to the present. Most charts are annotated to indicate data sources. Straits of Mackinac, Green Bay and Sault Ste. Marie are enlarged as insets, and in some ... more
     Spatial Coverage: Lat: (41.00, 49.00), Lon: (-93.00, -79.00)
     Temporal Coverage: 1973-12-01 - Continuing
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: GIF

110. AMSR-E/Aqua Daily L3 Global Ascending/Descending .25x.25 deg Ocean Grids
     The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. ... more
     Spatial Coverage: Lat: (-89.24, 89.24), Lon: (-180.00, 180.00)
     Temporal Coverage: 2002-06-19 - Continuing
     Resolution: Lat: 0.25 deg, Lon: 0.25 deg, Temporal: Daily
     Distribution Format: HDF-EOS
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111. Dominion Range Snow Pit and Ice Core, 1984 and 1985
     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 with a 3 cm sampling interval. Four 1 meter snow pits were dug and sampled in 1984-1985 with ... more
     Spatial Coverage: Lat: (-85.00, -85.00), Lon: (166.00, 166.00)
     Temporal Coverage: 1984-11-01 - 1985-01-31
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: ASCII text

112. GLAS/ICESat L1B Global Backscatter Data
     The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
     Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2003-02-20 - Continuing
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
     Distribution Format: scaled integer binary
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113. Seasonal frost penetration, Sleepers River Research Watershed, Vermont, USA
     The frost tube network is located within a 3.25-square-mile sub-watershed of the Sleepers River Research Watershed near Danville, Vermont, USA. Tubes were positioned in forested and non-forested cover types. The forest cover includes beech, birch, maple hardwoods with a 7% slope and 240 degree ... more
     Spatial Coverage: Lat: (44.42, 44.53), Lon: (-72.18, -72.04)
     Temporal Coverage: 1983 - 1992
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Unspecified

114. GLAS/ICESat L2 Global Thin Cloud/Aerosol Optical Depths Data
     The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
     Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2003-09-30 - Continuing
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
     Distribution Format: scaled integer binary
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115. GLERL Great Lakes Ice Thickness Data Base, 1966-1979
     During the winters of 1965/66 through 1976/77, NOAA/Great Lakes Environmental Research Laboratory (GLERL) collected weekly ice thickness and stratigraphy data at up to 90 stations per year on the Great Lakes. Data include station name, latitude, longitude and period of record as well as thickness ... more
     Spatial Coverage: Lat: (41.00, 49.00), Lon: (-93.00, -76.00)
     Temporal Coverage: 1965-01-01 - 1977-05-01
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Unspecified

116. Great Lakes Surface Ice Reports from U.S. Coast Guard
     Data consist of ice observations from U.S. Coast Guard vessels operating on the Great Lakes, and from Coast Guard shore stations reported via teletype messages and ice logging forms. Observations include ice thickness and concentration, weather conditions, and ice breaking activity. Data from ... more
     Spatial Coverage: Lat: (41.00, 49.00), Lon: (-93.00, -76.00)
     Temporal Coverage: 1961-11-10 - 2004
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Unspecified

117. MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG, Version 4
     MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG (MYD10C1) consists of 7200-column by 3600-row global arrays of snow cover in a 0.05 deg climate modeling grid (CMG). Data and quality assurance (QA) fields are in HDF-EOS format, along with corresponding metadata. Data extend from 04 July 2002 to ... more
     Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2002-07-04 - 2006-12-31
     Resolution: Lat: 0.05 deg, Lon: 0.05 deg, Temporal: Daily
     Distribution Format: HDF-EOS
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118. Active layer thickness and ground temperatures, Svea, Svalbard
     Snow and soil temperature records for January 1988 - May 1996 are presented. Included are snow depth and weight measurements, snow density (calculated), active layer depth in the frost tubes, weight of wet and dried soil samples from unknown depth within the active layer (water content ... more
     Spatial Coverage: Lat: (77.90, 77.90), Lon: (16.68, 16.68)
     Temporal Coverage: 1987-07 - 1996-05
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Unspecified

119. Environmental Working Group Joint U.S.-Russian Atlas of the Arctic Ocean
     The Environmental Working Group (EWG) was established in June 1995 under the framework of the U.S.-Russian Joint Commission on Economic and Technological Cooperation. In January 1996, the EWG Arctic Climatology Group took on the task of compiling digital data on arctic regions to expand scientific ... more
     Spatial Coverage: Lat: (60.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 1948-01-01 - 1993-12-31
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Unspecified

120. Near Real-Time SSM/I EASE-Grid Daily Global Ice Concentration and Snow Extent
     The Near Real-Time SSM/I EASE-Grid Daily Global Ice Concentration and Snow Extent product (Near Real-Time Ice and Snow Extent, NISE) provides daily, global near real-time maps of sea ice concentrations and snow extent. The National Snow and Ice Data Center (NSIDC) creates the NISE product using ... more
     Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 1995-05-04 - Continuing
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: daily
     Distribution Format: HDF-EOS
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121. Newall Glacier Snow Pit and Ice Core, 1987 to 1989
     Snow pit and ice core data from the Newall Glacier (location - 162 30' East, 77 35' South) were collected during 1987 and 1988. These include information on chemistry, Beta profiles and stratigraphy. Ice cores were collected during the austral summer of 1988-1989 and contain information on ... more
     Spatial Coverage: Lat: (-77.00, -77.00), Lon: (162.00, 162.00)
     Temporal Coverage: 1988-11-01 - 1989-01-31
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: ASCII text

122. MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Day, Version 4
     MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Day (MOD29P1D) data set contains fields for Sea Ice by Reflectance, Sea Ice by Reflectance Spatial Quality Assessment (QA), Ice Surface Temperature (IST), and IST Spatial QA in Hierarchical Data Format-Earth Observing System (HDF-EOS) ... more
     Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2000-02-24 - 2006-12-31
     Resolution: Lat: 1 km, Lon: 1 km, Temporal: Daily
     Distribution Format: HDF-EOS
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123. Nimbus-5 ESMR Polar Gridded Sea Ice Concentrations
     Daily and monthly averaged sea ice concentrations from the Nimbus-5 Electrically Scanning Microwave Radiometer (ESMR) are available for the Arctic and Antarctic from 12 December 1972 through 31 December 1976 at 25 km gridded resolution. Raw data were reprocessed to include ocean masks that reduce ... more
     Spatial Coverage: Lat: (-90.00, -39.23), Lon: (-180.00, 180.00)
     Temporal Coverage: 1972-12-12 - 1976-12-31
     Resolution: Lat: 25 km, Lon: 25 km, Temporal: Daily and monthly
     Distribution Format: HDF

124. MODIS/Aqua Snow Cover 8-Day L3 Global 0.05Deg CMG, Version 4
     MODIS/Aqua Snow Cover 8-Day L3 Global 0.05Deg CMG (MYD10C2) consists of 7200-column by 3600-row global arrays of snow cover in a 0.05 deg climate modeling grid (CMG). Data and quality assurance (QA) fields are in HDF-EOS format, along with corresponding metadata. MODIS snow cover data are based on ... more
     Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2002-07-04 - 2006-12-31
     Resolution: Lat: 0.05 deg, Lon: 0.05 deg, Temporal: 8 days
     Distribution Format: HDF-EOS
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125. TOVS Pathfinder Path-P Daily Arctic Gridded Atmospheric Parameters
     The TIROS-N Operational Vertical Sounder (TOVS) Polar Pathfinder (Path-P) consists of gridded daily and monthly Arctic atmospheric data derived from various NOAA satellites. TOVS Path-P daily files are available for Northern and Southern Hemispheres (from 60° poleward) at 100 km gridded spatial ... more
     Spatial Coverage: Lat: (-90.00, -60.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 1979-07-07 - 2005-12-31
     Resolution: Lat: 100 km, Lon: 100 km, Temporal: Daily, Monthly
     Distribution Format: HDF

126. CLPX-Ground: Snow Measurements at the Local Scale Observation Site (LSOS)
     This data set presents snow depth, snow water equivalence (SWE), snow wetness data, and snow pit data from two pine sites and a small clearing at the Local Scale Observation Site (LSOS) of the Cold Land Processes Field Experiment (CLPX) in northern Colorado. The LSOS is a 0.8 ha study site located ... more
     Spatial Coverage: Lat: (Unspecified, 39.95), Lon: (-105.90, Unspecified)
     Temporal Coverage: 2003-03-24 - 2003-03-30
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Tab Delimitated Text

127. GLAS/ICESat L2 Global Planetary Boundary Layer and Elevated Aerosol Layer Heights
     The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and ... more
     Spatial Coverage: Lat: (-86.00, 86.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2003-02-20 - Continuing
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: 1/40 second full-rate data
     Distribution Format: scaled integer binary
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128. AMSR-E/Aqua Monthly L3 5x5 deg Rainfall Accumulations
     The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric variables for the investigation of water and energy cycles. This Level-3 rainfall ... more
     Spatial Coverage: Lat: (-70.00, 70.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2002-06-19 - Continuing
     Resolution: Lat: 5 deg, Lon: 5 deg, Temporal: monthly
     Distribution Format: HDF-EOS
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129. Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I Brightness Temperatures
     Yearly snow melt onset dates over Arctic sea ice are derived from Scanning Multichannel Microwave Radiometer (SMMR) and Special Sensor Microwave/Imager (SSM/I) brightness temperatures. The introduction of liquid water to snow results in a sharp increase in the emissivity and hence brightness ... more
     Spatial Coverage: Lat: (30.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 1979-01-01 - 1998-12-31
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: yearly
     Distribution Format: ASCII and GIF

130. Borehole locations and permafrost depths, Alaska, USA
     The methods utilized by the U.S. Geological Survey to measure subsurface temperatures have evolved considerably over the years. Although some of the early measurements were obtained using thermistor strings frozen into permafrost, the vast majority of the measurements were made in fluid-filled ... more
     Spatial Coverage: Lat: (62.19, 71.19), Lon: (-165.77, -141.15)
     Temporal Coverage: 1950 - 1989
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Unspecified

131. Digital SAR Mosaic and Elevation Map of the Greenland Ice Sheet
     The Digital SAR Mosaic and Elevation Map of the Greenland Ice Sheet CD-ROM combines the most detailed synthetic aperture radar (SAR) image mosaic available with the best current digital elevation model. The mosaic image shows both the location of the ice edge and the distribution of melt-related ... more
     Spatial Coverage: Lat: (60.00, 84.00), Lon: (-73.00, -10.00)
     Temporal Coverage: 1992-08-02 - 1992-09-09
     Resolution: Lat: 100 m, Lon: 100 m, Temporal: one-time snapshot
     Distribution Format: SAR data = 'flat' byte file with no header

132. Great Lakes Aerial Photos of Ice Conditions
     The collection consists of approximately 50,000 high-quality negatives and transparencies showing ice cover impact on navigation or hydroelectric operation from 1963 to 1973. Coverage is not systematic or complete. Indexing has not been undertaken, but latitude and longitude of flight line begin ... more
     Spatial Coverage: Lat: (41.00, 49.00), Lon: (-93.00, -76.00)
     Temporal Coverage: 1963-01-01 - 1973-01-01
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: Unspecified

133. AMSR-E/Aqua Daily Global Quarter-Degree Gridded Brightness Temperatures
     The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of the Earth. NSIDC produces AMSR-E gridded brightness temperature data by interpolating AMSR-E data (6.9 GHz, 10.7 GHz, 18.7 GHz, ... more
     Spatial Coverage: Lat: (-90.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 2002-06-19 - Continuing
     Resolution: Lat: 0.25 degree, Lon: 0.25 degree, Temporal: Daily
     Distribution Format: binary

134. The Dehn Collection of Arctic Sea Ice Charts, 1953-1986
     The National Snow and Ice Data Center/World Data Center for Glaciology, Boulder (NSIDC/WDC) holds a collection of charts depicting ice conditions in the seas off Alaska and western Canada coasts. Ice edge position and some ice concentration and other information are included, though the ... more
     Spatial Coverage: Lat: (Unspecified, Unspecified), Lon: (Unspecified, Unspecified)
     Temporal Coverage: 1953-01-01 - 1986-12-31
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: JPEG, TIFF

135. Ice Thickness and Internal Layer Depth Along the 2001 and 2002 US ITASE Traverses
     Ice thickness and internal layer depth data were collected with a ground-based, ice-penetrating radar study as part of the US International Trans-Antarctic Scientific Expedition (US ITASE) traverse in West Antarctica from 01 November 2001 to 10 January 2003. Longitude, latitude, ice thickness, and ... more
     Spatial Coverage: Lat: (-90.00, -80.00), Lon: (-120.00, -76.00)
     Temporal Coverage: 2001-11-01 - 2003-01-10
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: ASCII, JPEG

136. SMEX02 Soil Climate Analysis Network (SCAN) Station 2031, Ames, Iowa
     This work is part of the Soil Moisture Experiment (SMEX) project. This data set provides data from various sensors on the Soil Climate Analysis Network (SCAN) station number 2031, located near Ames, Iowa, USA. The data include: hourly and daily recordings of precipitation, air temperature, solar ... more
     Spatial Coverage: Lat: (42.10, 42.10), Lon: (-93.85, -93.85)
     Temporal Coverage: 2002-06-01 - 2002-08-31
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: Unspecified
     Distribution Format: ASCII text

137. Morphometric Characteristics of Ice and Snow in the Arctic Basin: Aircraft Landing Observations from the Former Soviet Union, 1928-1989
     This data set contains sea ice and snow measurements collected during aircraft landings associated with the Soviet Union's historical Sever airborne and North Pole drifting station programs. The High-Latitude Airborne Annual Expeditions Sever (Sever means North) took place in 1937, 1941, ... more
     Spatial Coverage: Lat: (64.00, 90.00), Lon: (-180.00, 180.00)
     Temporal Coverage: 1928-06 - 1989-05
     Resolution: Lat: Unspecified, Lon: Unspecified, Temporal: One set of observations per landing site; number of landing sites varied each mo
     Distribution Format: ASCII text file

138. GLAS/ICESat L2 Ocean Surface Altimetry Data
     The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of