Science Keywords>LAND SURFACE>GEOMORPHOLOGY
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RADARSAT-1 SAR Images held at the Alaska Satellite Facility
Entry ID:
ASF000R1
Summary
Abstract:
The data set consists of all RADARSAT-1 SAR data acquired by the Alaska Satellite Facility (ASF) operated by the Geophysical Institute of the University of Alaska in Fairbanks. The data are global in extent, containing an abundance data collected within the ASF station mask, approximated by a 3000 km radius circle centered on Fairbanks, and within the McMurdo station mask, approximated by a 3000 km radius circle centered on McMurdo Station, Antarctica.
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Geographic Coverage
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Spatial coordinates
Temporal Coverage
Start Date:
1996-06-01
Stop Date:
2008-05-03
Location Keywords
ISO Topic Category
Instrument
Quality
Satellite/gauge relative error estimates are provided for each 0.25 x 0.25 degree box. The estimates are derived in two steps: (1) the error estimates of each input data are computed separately, mostly reflecting the sampling-induced uncertainty of each field and (2) a linear combination of these field errors is computed, in which each field error estimate is weighted by the inverse of its error-variance. There are currently no known deficiencies in the 3B43 algorithm. The quality of the 3B43 product is highly sensitive to the quality of the input data: TRMM adjusted merged-IR (product 3B42) and monthly accumulated TMI/TRMM Combined Instrument (TCI, product 2A12/3B31). If the quality of the input data is less than anticipated, then the quality of 3B43 will also be less.
Access Constraints
None
Ancillary Keywords
Data Set Progress
IN WORK
Originating Center
Data Center
Distribution
Distribution Media:
FTP
Distribution Size:
increasing daily
Distribution Format:
HDF
Fees:
none
Personnel
Role:
INVESTIGATOR
Phone:
301-614-6308
Fax:
301-614-5492
Email:
George.J.Huffman at nasa.gov
Contact Address:
NASA
Goddard Space Flight Center
Mailstop 612
City:
Greenbelt
Province or State:
Maryland
Postal Code:
20771
Country:
USA
Publications/References
Product Readme: ftp://meso-a.gsfc.nasa.gov/pub/trmmdocs/3B42_3B43_doc.pdf
File Specifications for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespec.TRMM.V7.pdf Metadata for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespecMeta.TRMM.V7.pdf TRMM V6 vs. V7 Major Data Format Changes: http://pps.gsfc.nasa.gov/Documents/formatChangesV7.pdf Huffman, G.J., 1997: "Estimates of ... Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date:
2011-07-19
Last DIF Revision Date:
2013-05-14
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