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Enhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness Temperatures

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Entry ID

NSIDC-0464

Summary

This data set contains enhanced-resolution brightness temperatures produced using the Scatterometer Image Reconstruction (SIR) algorithm developed by the Microwave Earth Remote Sensing (MERS) group at Brigham Young University (BYU). Enhanced-resolution brightness temperature images for the Arctic and Antarctic were generated using antenna temperature data from the Special Sensor Microwave/Imager (SSM/I) and the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument. SSM/I images are available for 1995 through 2008, and AMSR-E images are available for 2002 through 2010. All available measurements for a single day are averaged into twice-daily gridded files for three different equal-area spatial coverages: Northern Hemisphere, Southern Hemisphere, and full global. The spatial resolution is 12.5 km for SSM/I channels 19 and 22 GHz, 7.5 km for 37 GHz, and 2.5 km for the 85 GHz channel. For AMSR-E, the resolution is 12.5 km for the 6, 10, 18, and 23 GHz channels; 7.5 km for the 36 GHz channel; and 2.5 km for the 89 GHz channel. Software for reading the SIR-formatted SSM/I and AMSR-E data is also available. As scatterometer and radiometer data complement each other, these enhanced-resolution radiometer data, together with SIR format scatterometer data available from BYU, will facilitate polar research that combines information from both radiometers and scatterometers. Data are stored as scaled 2-byte integers in binary arrays with a 512-byte header and are available via FTP.

Geographic Coverage

 

Spatial Coordinates:
N: -39°     S: -90°     E: 180°     W: -180°    
N: 90°     S: 30°     E: 180°     W: -180°    

Data Set Citation

Dataset Creator: Long, D. G. and J. Stroeve.
Dataset Title: Enhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness Temperatures
Dataset Release Date: 2011-08-11
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0464.html

Temporal Coverage

Start Date: 1995-01-01
Stop Date: 2008-12-31

Start Date: 2002-01-01
Stop Date: 2011-10-01

Data Resolution

Latitude Resolution: 7.5 km
Longitude Resolution: 7.5 km
Temporal Resolution: 12:00:00

Latitude Resolution: 12.5 km
Longitude Resolution: 12.5 km
Temporal Resolution: 12:00:00

Latitude Resolution: 2.5 km
Longitude Resolution: 2.5 km
Temporal Resolution: 12:00:00

Location Keywords

  • CONTINENT NORTH AMERICA CANADA HUDSON BAY
  • GEOGRAPHIC REGION POLAR
  • OCEAN ARCTIC OCEAN BAFFIN BAY
  • OCEAN ARCTIC OCEAN BEAUFORT SEA
  • OCEAN ARCTIC OCEAN CHUKCHI SEA
  • OCEAN ATLANTIC OCEAN NORTH ATLANTIC OCEAN
  • OCEAN ATLANTIC OCEAN NORTH ATLANTIC OCEAN GREENLAND SEA
  • OCEAN PACIFIC OCEAN NORTH PACIFIC OCEAN BERING SEA
  • OCEAN SOUTHERN OCEAN AMUNDSEN SEA

Science Keywords

  • Spectral/Engineering Microwave Brightness Temperature
  • Spectral/Engineering Microwave Brightness Temperature
  • Spectral/Engineering Microwave Brightness Temperature
  • Spectral/Engineering Microwave Brightness Temperature
  • Spectral/Engineering Microwave Brightness Temperature
  • Spectral/Engineering Microwave Brightness Temperature

Ancillary Keywords

  • Antarctic
  • Arctic
  • Daily Data
  • EASE-Grid
  • EOSDIS
  • Gridded Data
  • NSIDC DAAC
  • Passive Microwave
  • Polar
  • Remote Sensing

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere

Platform

  • AQUA Earth Observing System, AQUA
  • DMSP 5D-2/F13 Defense Meteorological Satellite Program-F13

Instrument

  • AMSR-E Advanced Microwave Scanning Radiometer-EOS
  • SSM/I Special Sensor Microwave/Imager

Project

  • EOSDIS Earth Observing System Data Information System
  • ESIP Earth Science Information Partners Program

Quality

Enhanced SSM/I brightness temperatures were produced without calibration changes from the Remote Sensing Systems (RSS) Version 6 (V6) SSM/I swath product for DMSP-F13. Enhanced AMSR-E brightness temperatures were produced, also without adjustments, from the RSS V4 AMSR-E swath product. For details regarding calibration and validation of these source products, please visit RSS.

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

Distribution

Distribution Media: FTP
Distribution Size: 1.5 - 63 MB
Distribution Format: Binary

Distribution Media: FTP
Distribution Size: 5 - 7168 KB
Distribution Format: GIF

Personnel

David G. Long
Role: INVESTIGATOR
Contact Address:

  • Brigham Young University
  • Microwave Earth Remote Sensing (MERS) Laboratory
  • 459 Clyde Building

City: Provo
Province or State: UT
Postal Code: 84602
Country: USA

Julienne Stroeve
Role: INVESTIGATOR
Email: stroeve@nsidc.org
Contact Address:

  • CIRES
  • 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

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

Related URL

VIEW PROJECT HOME PAGE
SSM/I Brightness Temperature and Sea Ice Concentration Grids: Frequently Asked Questions (FAQs)

VIEW PROJECT HOME PAGE
SSM/I Brightness Temperature and Sea IceConcentration Grids: Frequently Asked Questions(FAQs)

VIEW RELATED INFORMATION
AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures

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

VIEW RELATED INFORMATION
DMSP SSM/I-SSMIS Pathfinder Daily EASE-GridBrightness Temperatures

VIEW RELATED INFORMATION
Near-Real-Time DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures

VIEW RELATED INFORMATION
Near-Real-Time DMSP SSM/I-SSMIS Pathfinder DailyEASE-Grid Brightness Temperatures

Reference

Long, D. G., P. Hardin, and P. Whiting. 1993. Resolution Enhancement of Spaceborne Scatterometer Data. IEEE Trans. Geosci. Remote Sens. 31: 700-715. Long, D. G. and D. Daum. 1998. Spatial Resolution Enhancement of SSM/I Data. IEEE Trans. Geosci. Rem. Sens. 36: 407-417.

Long, D. G., D. Early, and M. R. Drinkwater. 1994. Enhanced Resolution ERS-1 Scatterometer Imaging of Southern Hemisphere Polar Ice. Proc. Int. Geosci. Rem. Sens. Sym., Pasadena, California, 8-12 August, 156-158.

Long, D. G. and M. R. Drinkwater. 1999. Cryosphere Applications of NSCAT Data. IEEE Trans. Geosci. Remote Sens. 37 (3): 1671-1684. Early, D. S. and D. G. Long. 2001. Image Reconstruction and Enhanced Resolution Imaging from Irregular Samples. IEEE Trans. Geosci. Remote Sens. 39 (2): 291-302.

Gunn, B. 2007. Temporal Resolution Enhancement for AMSR Images. MERS Technical Report 07-02, 04 Dec. 2007. www.scp.byu.edu/docs/pdf/MERS0702.pdf Hollinger, J. P. and R. C. Lo. 1983. SSM/I Project Summary Report. Naval Research Laboratory. NRL Memorandum Report 5055. 106 pp.

Stroeve, J. 1998. Impact of Various Processing Options on SSM/I-Derived Brightness Temperatures. NSIDC Special Report-7. http://nsidc.org/pubs/special/7/index.html

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2011-08-11
Last DIF Revision Date: 2013-06-24

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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