Global EASE-Grid 8-day Blended SSM/I and MODIS Snow Cover

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Entry ID

NSIDC-0321

Summary

This data set comprises global, 8-day snow-covered area (SCA) and snow water equivalent (SWE) data from 2000 through the most current processing. Global SWE data are derived from the Special Sensor Microwave Imager (SSM/I) and are enhanced with MODIS/Terra Snow Cover 8-Day Level 3 Global 0.05 degree Climate Modeling Grid (CMG) data. Global data are gridded to the Northern and Southern 25 km Equal-Area Scalable Earth Grids (EASE-Grids). These data are suitable for continental-scale time-series studies of snow cover and snow water equivalent. The data are in netCDF data files and PNG browse image files available via FTP.

Data Set Citation

Dataset Creator: M.J. Brodzik, R.L. Armstrong, and M. Savoie
Dataset Title: Global EASE-Grid 8-day Blended SSM/I and MODIS Snow Cover
Dataset Release Date: 2007-12-05
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Online Resource: http://nsidc.org/data/nsidc-0321.html

Temporal Coverage

Start Date: 2000-03-05

Data Resolution

Latitude Resolution: 25 km
Longitude Resolution: 25 km

Location Keywords

• Geographic Region Northern Hemisphere
• Geographic Region Southern Hemisphere

Science Keywords

• Cryosphere Snow/Ice Snow Cover
• Cryosphere Snow/Ice Snow Water Equivalent

Ancillary Keywords

• Antarctic
• Arctic
• Ease
• EASE-Grid
• Gridded Data
• MODIS
• Northern Hemisphere
• Snow Cover
• Snow Water Equivalent
• Southern Hemisphere
• Special Sensor Microwave/Imager
• SSM/I

ISO Topic Category (View Definitions)

• Climatology/Meteorology/Atmosphere

Platform

• DMSP Defense Meteorological Satellite Program
• TERRA Earth Observing System, TERRA (AM-1)

Instrument

• MODIS Moderate-Resolution Imaging Spectroradiometer
• SSM/I Special Sensor Microwave/Imager

Project

• EOSDIS Earth Observing System Data Information System

Data Set Progress

IN WORK

Originating Center

NSIDC_DAAC

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

NSIDC Distributed Active Archive Center
Data Center URL: http://nsidc.org/daac/index.html

Data Center Personnel

Name: NSIDC DAAC 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

Distribution

Distribution Media: FTP
Distribution Size: 12 - 40 KB
Distribution Format: PNG

Distribution Media: FTP
Distribution Size: 85 - 104 MB
Distribution Format: NetCDF

Personnel

Mary J. Brodzik
Role: INVESTIGATOR
Email: brodzik@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

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
CIRES 449 UCB
University of Colorado
City: Boulder
Province or State: Colorado
Postal Code: 80309-0449
Country: USA

Matthew H. Savoie
Role: INVESTIGATOR
Email: savoie@nsidc.org
Contact Address:
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

NSIDC User Services
Role: TECHNICAL CONTACT
Phone: (303) 492-6199
Fax: (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

Related URL

VIEW RELATED INFORMATION
All About EASE-Grid

VIEW RELATED INFORMATION
MODIS/Terra snow cover 8-day L3 global 0.05deg CMG V005

VIEW RELATED INFORMATION
DMSP SSM/I Pathfinder daily EASE-Grid Brightness Temperatures

VIEW RELATED INFORMATION
Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent Version 3

Reference

Armstrong, R. L., and M. J. Brodzik. 2005. Northern Hemisphere EASE-Grid weekly snow cover and sea ice extent version 3. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media.

Armstrong, R. L., M. J. Brodzik, J. R. Wang, M. H. Savoie, O. Frauenfeld, T. Zhang. 2004. Solutions to the Snow Cover Mapping Anomaly over the Tibetan Plateau (poster). Eos Trans. AGU, 85(47), Fall Meet. Suppl. Abstract C31A-0282.

Armstrong, R. L. and M. J. Brodzik. 2002. Hemispheric-scale comparison and evaluation of passive microwave snow algorithms, Annals of Glaciology, 34:38-44.

Armstrong, R.L. and M.J. Brodzik. 2001. Recent Northern Hemisphere snow extent: a comparison of data derived from visible and microwave sensors. Geophysical Research Letters, 23(19):3673-3676. Brodzik, M. J., R. L. Armstrong, K. Knowles, M. H. Savoie. 2005. The Effect of Sensor Differences in Deriving Long-Term Trends from Satellite Passive Microwave Snow Extent and Snow Water Equivalent. Eos Trans. AGU, 86(52), Fall Meet. Suppl. Abstract U21A-0804.

Brodzik, M. J. and K. W. Knowles. 2002. 'EASE-Grid: a versatile set of equal-area projections and grids' in M. Goodchild (Ed.) Discrete Global Grids. Santa Barbara, CA, USA: National Center for Geographic Information & Analysis. http://www.ncgia.ucsb.edu/globalgrids-book/ease_grid/. Chang, A. T. C., J. L. Foster, D. K. Hall. 1996. Effects of Forest on the Snow Parameters Derived from Microwave Measurements during the BOREAS Winter Field Campaign. Hydrological Processes, 10:1565-1574.

Chang, A. T. C., J. L. Foster, D. K. Hall. 1987. Nimbus-7 SMMR Derived Global Snow Cover Parameters. Annals of Glaciology, 9:39-44.

Derksen, C. and M. MacKay. 2006. The Canadian Boreal Snow Water Equivalent Band. Atmosphere-Ocean, 44(3):305-320.

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 CO, USA: National Snow and Ice Data Center. Digital Media .

Nagler, Thomas, and H. Rott 1992. Development and intercomparisons of snow mapping algorithms based on SSM/I data. Proceedings IGARSS'92, Houston, IEEE, N.p., 812-814.

Savoie, M. H., J. Wang, M. J. Brodzik, R. L. Armstrong. 2007. Improved Snow Cover Retrievals from Satellite Passive Microwave Data over the Tibet Plateau: The need for atmospheric corrections over high elevations. Eos Trns. AGU, 88(52), Fall Meeting Suppl., Abstract C23A-0942.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2007-12-03

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