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Arctic Soil Freeze/Thaw Status from SMMR and SSM/I

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Entry ID

GGD641

Summary

This data set contains near-surface (< 5 cm) soil freeze/thaw status on snow-free and snow-covered land surfaces over the Arctic terrestrial drainage basin. The near-surface soil freeze/thaw status is determined by using passive-microwave remote sensing data over snow-free land and a numerical model over snow-covered land. Data are projected to a 25 km x 25 km Northern Hemisphere EASE-Grid. Version 2 of this data set greatly extends the temporal coverage and makes use of data from SMMR as well as SSM/I. Data are from October 1978 to June 2004. Data are in ASCII text format and are available via FTP.

Geographic Coverage

 

Spatial Coordinates:
N: 90°     S: 45°     E: 180°     W: -180°    

Data Set Citation

Dataset Creator: Zhang, T. and R. Armstrong
Dataset Title: Arctic Soil Freeze/Thaw Status from SMMR and SSM/I
Dataset Release Date: 2003-05-27
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Version: 2
Online Resource: http://nsidc.org/data/ggd641.html

Temporal Coverage

Start Date: 1978-10-01
Stop Date: 2004-06-30

Data Resolution

Latitude Resolution: 25 km
Longitude Resolution: 25 km
Temporal Resolution: 1 day

Location Keywords

  • GEOGRAPHIC REGION ARCTIC

Science Keywords

  • Cryosphere Frozen Ground Seasonally Frozen Ground
  • Cryosphere Snow/Ice Freeze/Thaw
  • Land Surface Frozen Ground Seasonally Frozen Ground
  • Terrestrial Hydrosphere Snow/Ice Freeze/Thaw

Ancillary Keywords

  • Seasonal Freeze/thaw

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere
  • Geoscientific Information

Platform

  • DMSP Defense Meteorological Satellite Program
  • NIMBUS-7

Instrument

  • SMMR Scanning Multichannel Microwave Radiometer
  • SSM/I Special Sensor Microwave/Imager

Data Set Progress

complete

Data Center

National Snow and Ice Data Center
Data Center URL: http://nsidc.org

Data Center Personnel

Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Frozen Ground Data Center
Data Center URL: http://nsidc.org/fgdc/

Data Center Personnel

Name: FGDC User Services
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Distribution

Distribution Media: FTP
Distribution Size: 148.3 MB
Distribution Format: ASCII Text (.txt)

Personnel

Tingjun Z Zhang
Role: INVESTIGATOR
Phone: 1 303 492-6199 x
Fax: 1 303 492-2359 x
Email: nsidc@nsidc.org
Contact Address:

  • University of Colorado
  • National Snow and Ice Data Center/World Data Center for Glaciology
  • UCB449

City: Boulder
Province or State: Colorado
Postal Code: 80309-0449
Country: USA

Richard Armstrong
Role: INVESTIGATOR
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: rlax@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • National Snow and Ice Data Center
  • CIRES 449 UCB
  • University of Colorado

City: Boulder
Province or State: Colorado
Postal Code: 80309-0449
Country: USA

Related URL

VIEW RELATED INFORMATION
All About EASE-Grid

Reference

Armstrong, R.L., and M.J. Brodzik. 2002. Northern Hemisphere EASE-Grid weekly snow cover and sea ice extent, Version 2. Boulder, CO: National Snow and Ice Data Center. CD-ROM.

Brodzik, M.J. 1997. EASE-Grid: A versatile set of equal-area projections and grids. Boulder, CO, USA: National Snow and Ice Data Center.

Brown, J., O.J. Ferrians, Jr., J.A. Heginbottom, and E.S. Melnikov. 1998. Digital Circum-Arctic map of permafrost and ground-ice conditions. In International Permafrost Association, Data and Information Working Group, comp. Circumpolar Active-Layer Permafrost System (CAPS), version 1.0. Boulder, CO: National Snow and Ice Data Center. CD-ROM.

Chang, A.T.C., J.L. Foster, and D.K. Hall. 1987. Nimbus-7 SMMR derived global snow cover parameters. Annals of Glaciology 9:39-44.

Global Soil Data Task. 2000. Global gridded surfaces of selected soil characteristics. International Geosphere-Biosphere Programme - Data and Information Services (IGBP-DIS). Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center. Available online at http://www.daac.ornl.gov.

Goodrich, L.E. 1982. Efficient numerical technique for one-dimensional thermal problems with phase change. International Journal of Heat and Mass Transfer 21:615-621.

Holden, J.B., C.J. Vörösmarty, S. Frolking, and R. Lammers. 2001. A large-scale water balance model for permafrost terrain. Arctic and Alpine Research. In press.

Kalnay, E., M. Kanamitsu, R. Kistler, W. Collins, D. Deaven, L. Gandin, M. Iredell, S. Saha, G. White, J. Woolen, Y. Zhu, M. Chelliah, W. Ebisuzaki, W. Higgens, J. Janowiak, K.C. Mo, C. Ropelewski, J. Wang, A. Leetma, R. Reynolds, R. Jenne, and D. Joseph. 1996. The NCEP/NCAR 40-year reanalysis project. Bulletin of the American Meteorological Society 77:437-471.

Meteorological Service of Canada (MSC). 2000. Canadian Snow Data CD-ROM. Downsview, Ontario, Canada: Meteorological Service of Canada, CRYSYS Project, Climate Processes and Earth Observation Division.

Oelke, C., T. Zhang, M. Serreze, and R. Armstrong. 2003. Regional-scale modeling of soil freeze/thaw over the Arctic drainage basin. Journal of Geophysical Research. In press.

Sturm, M., J. Holmgren, and G.E. Liston. 1995. A seasonal snow cover classification system for local to global applications. Journal of Climate 8:1261-1283.

Zhang, T., and R.L. Armstrong. 2001. Soil freeze/thaw cycles over snow-free land detected by passive microwave remote sensing. Geophysical Research Letters 28(5): 763-766.

Zhang, T., J.A. Heginbottom, R.G. Barry, and J. Brown. 2000. Further statistics on the distribution of permafrost and ground-ice in the Northern Hemisphere. Polar Geography 24(2):126-131.

Zhang, T., R.G. Barry, K. Knowles, J.A. Heginbottom, and J. Brown. 1999. Statistics and characteristics of permafrost and ground ice distribution in the Northern Hemisphere. Polar Geography 23(2):147-169.

Zhang, T., T.E. Osterkamp, and K. Stamnes. 1996. Influence of the depth hoar layer of the seasonal snow cover on the ground thermal regime. Water Resources Research 32(7):2075-2086.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2003-05-27
Last DIF Revision Date: 2013-03-05

Metadata Views

DIF Text-Only

Directory Interchange Format (DIF) in plain text

DIF XML

Directory Interchange Format (DIF) in Extensible Markup Language (XML)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

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