Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent

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Entry ID

NSIDC-0046

Summary

The Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent Version 4 product combine snow cover and sea ice extent at weekly intervals from 23 October 1978 through 29 June 2014, and snow cover alone from 03 October 1966 through 29 June 2014. Snow cover extent for this data set is based on the NOAA/NCDC Climate Data Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE) by D. Robinson (2012) and regridded to the EASE-Grid. The NOAA/NCDC CDR of Northern Hemisphere Snow Cover Extent data were derived from the manual interpretation of AVHRR, GOES, and other visible-band satellite data (Helfrich et al. 2007). Sea ice extent is regridded to EASE-Grid from Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data. Designed to facilitate study of Northern Hemisphere seasonal fluctuations of snow cover and sea ice extent, the data set also includes monthly climatologies describing average extent, probability of occurrence, and variance. Data are provided in flat, unsigned binary files and are available via FTP.

Geographic Coverage

 

Spatial Coordinates:
N: 90°     S: 0°     E: 180°     W: -180°    

Data Set Citation

Dataset Creator: Brodzik, M. and R. Armstrong.
Dataset Title: Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent
Dataset Release Date: 2013-01-31
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
Version: 4
Online Resource: http://nsidc.org/data/nsidc-0046.html

Temporal Coverage

Start Date: 1978-10-23
Stop Date: 2014-06-29

Start Date: 1966-10-03
Stop Date: 2014-06-29

Data Resolution

Latitude Resolution: 25 km
Longitude Resolution: 25 km
Temporal Resolution: 7 days

Location Keywords

  • GEOGRAPHIC REGION NORTHERN HEMISPHERE

Science Keywords

  • Cryosphere Sea Ice Ice Extent
  • Cryosphere Snow/Ice Snow Cover
  • Oceans Sea Ice Ice Extent
  • Terrestrial Hydrosphere Snow/Ice Snow Cover

Ancillary Keywords

  • Arctic
  • DAAC
  • EASE-Grid 2.0
  • EOSDIS
  • Global
  • Global Change
  • Gridded Data
  • Ice
  • NASA
  • Northern Hemisphere
  • NSIDC
  • Remote Sensing
  • Sea Ice
  • Sea Ice Extent
  • SMMR
  • Snow
  • Snow Cover
  • Snow Extent
  • SSM/I

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere
  • Oceans

Platform

  • DMSP Defense Meteorological Satellite Program
  • DMSP 5D-2/F11 Defense Meteorological Satellite Program-F11
  • DMSP 5D-2/F13 Defense Meteorological Satellite Program-F13
  • DMSP 5D-2/F8 Defense Meteorological Satellite Program-F8
  • DMSP 5D-3/F17 Defense Meteorological Satellite Program-F17
  • GOES NOAA Geostationary Operational Environmental Satellites
  • GOES-7 Geostationary Operational Environmental Satellite 7
  • NIMBUS-7
  • NOAA POES NOAA Polar Orbiting Environmental Satellites

Instrument

  • AVHRR Advanced Very High Resolution Radiometer
  • SMMR Scanning Multichannel Microwave Radiometer
  • SSM/I Special Sensor Microwave/Imager
  • SSMIS Special Sensor Microwave Imager/Sounder
  • VAS VISSR Atmospheric Sounder

Project

  • NOAA/NASA PATHFINDER NOAA/NASA Pathfinder Program

Quality

NSIDC observed and manually inspected selected files in this data set, and performed spot checks against the original hand-drawn NOAA/NESDIS snow charts and the original sea ice data. Please see the Quality Control Summary for more information about quality control procedures at NSIDC.

Data Set Progress

complete

Originating Center

NSIDC_DAAC

Data Center

NASA DAAC at the National Snow and Ice Data Center
Data Center URL: http://nsidc.org/daac/index.html

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

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

National Oceanic and Atmospheric Administration
Data Center URL: http://nsidc.org/noaa/

Data Center Personnel

Name: NOAA 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: 508 KB
Distribution Format: Binary

Personnel

NSIDC User Services
Role: TECHNICAL CONTACT
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

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

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

Mary J. Brodzik
Role: INVESTIGATOR
Email: brodzik@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: CO
Postal Code: 80309-0449

Related URL

VIEW PROJECT HOME PAGE
Sea Ice Data at NSIDC

VIEW RELATED INFORMATION
Atlas of the Cryosphere

VIEW RELATED INFORMATION
EASE-Grid Data

Reference

Brodzik, M. J., B. Billingsley, T. Haran, B. Raup, M. H. Savoie. 2012. EASE-Grid 2.0: Incremental but Significant Improvements for Earth–Gridded Data Sets. ISPRS International Journal of Geo–Information 1(1):32-45. doi:10.3390/ijgi1010032.

Brodzik, M. J. 2012. EASE-Grid 2.0 Land Cover Data Resampled from Boston University Version of Global 1 km Land Cover from MODIS 2001, Version 4. Boulder, Colorado USA: National Snow and Ice Data Center.

Brodzik, M. J. 1997. EASE-Grid: A Versatile Set of Equal-Area Projections and Grids. Boulder, Colorado USA: National Snow and Ice Data Center.

Brown R. D., and D. A. Robinson. 2011. Northern Hemisphere Spring Snow Cover Variability and Change over 1992–2010 Including an Assessment of Uncertainty. The Cryosphere 5:219–229, www.the-cryosphere.net/5/219/2011/doi:10.5194/tc-5-219-2011.

Cavalieri, D. J., J. Crawford, M. Drinkwater, W. J. Emery, D. T. Eppler, L. D. Farmer, M. Goodberlet, R. Jentz, A. Milman, C. Morris, R. Onstott, A. Schweiger, R. Shuchman, K. Steffen, C. T. Swift, C. Wackerman, and R. L. Weaver. 1992. NASA Sea Ice Validation Program for the DMSP SSM/I: Final Report. NASA Technical Memorandum 104559. 126 pp.

Cavalieri, D. J., P. Gloersen, and W. J. Campbell. 1984. Determination of Sea Ice Parameters with the NIMBUS–7 SMMR. Journal of Geophysical Research 89(D4):5355-5369.

Dewey, K. F. and R. Heim, Jr. 1981. Satellite Observations of Variations in Northern Hemisphere Seasonal Snow Cover. NOAA Technical Report NESS 87. 83 pp.

Dewey, K. F. and R. Heim Jr. 1982. New Data Base: A Digital Archive of Northern Hemisphere Snow Cover. Presented at Western Snow Conference, April 19–23. Reno, NV, 9 pp.

Gloersen, P., W. J. Campbell, D. J. Cavalieri, J. C. Comiso, C. L. Parkinson, and H. J. Zwally. 1992. Arctic and Antarctic Sea Ice, 1978 - 1987: Satellite Passive Microwave Observations and Analysis. NASA SP–511.

Helfrich, S. R., D. McNamara, B. H. Ramsay, T. Baldwin, and T. Kasheta. 2007. Enhancements to, and Forthcoming Developments in the Interactive Multisensor Snow and Ice Mapping System (IMS). Hydrological Processes 21(12): 1576–1586. doi:10.1002/hyp.6720.

Johannessen, O. M., M. W. Miles, E. Bjørgo. 1996. Global Sea Ice Monitoring from Microwave Satellites. In IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium. Remote Sensing for a Sustainable Future, ed. T. I. Stein, Vol. II: 932–934. Piscataway, NJ: Institute of Electrical and Electronics Engineers, Inc.

Knowles, K. 2004. EASE–Grid Land Cover Data Resampled from Boston University Version of Global 1 km Land Cover from MODIS 2001, Version 4. Boulder, Colorado USA: National Snow and Ice Data Center.

Knowles, K. 1993. Points, Pixels, Grids, and Cells: A Mapping and Gridding Primer. Boulder, Colorado USA: National Snow and Ice Data Center.

NOAA/NESDIS/OSDPD/SSD. 2004. IMS Daily Northern Hemisphere Snow and Ice Analysis at 4 km and 24 km Resolution. Boulder, Colorado USA: National Snow and Ice Data Center.

Ramsay, B. H. 1998. The Interactive Multisensor Snow and Ice Mapping System. Hydrological Processes 12:1537-1546.

Robinson, D. et al. 2012. NOAA/NCDC Climate Data Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE). New Jersey, USA: Rutgers University Global Snow Lab.

Robinson, D. A., A. Bamzai, and B. Ramsay. 2001. Evaluating Northern Hemisphere Snow Cover During the Satellite Era: Variations in Extent and Associations with Temperature. Proceedings of the 12th Symposium on Global Change and Climate Variations. Albuquerque, New Mexico USA, American Meteorological Society, 36–39.

Robinson, D. A. 2000. Weekly Northern Hemisphere Snow Maps: 1966–1999. 12th Conference on Applied Climatology, Asheville, NC, American Meteorological Society, 12–15.

Robinson, D. A. and A. Frei. 2000. Seasonal Variability of Northern Hemisphere Snow Extent Using Visible Satellite Data. Professional Geographer 51: 307–314.

Robinson, D. A., J. D. Tarpley and B. Ramsay. 1999. Transition from NOAA Weekly to Daily Hemispheric Snow Charts. Proceedings of the 10th Symposium on Global Change, Dallas, TX, American Meteorological Society, 487–490.

Robinson, D. A., K. F. Dewey, and R. R. Heim, Jr. 1993. Global Snow Cover Monitoring: an Update. Bulletin of the American Meteorological Society 74:1689–1696.

Swift, C. T. and D. J. Cavalieri. 1985. Passive Microwave Remote Sensing for Sea Ice Research. EOS 66(49):1210–1212.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2013-01-31
Last DIF Revision Date: 2014-10-01

Metadata Views

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FGDC HTML

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ISO HTML

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

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