Enhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness Temperatures  View Catalog Page 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°
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Data Set Citation
Dataset Creator: Long, David and Julienne 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: 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
- 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: 2012-11-06
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