SSM/I Products Description
There are three products per region:
SSM/I derived - Surface Wind Speeds (knots),
SSM/I derived - Columnar Water Vapor - Precipital Water (mm) ,
SSM/I derived - Columnar Liquid Water (100 x mm),
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Maps are available for data at four
time periods: 00Z, 06Z, 12Z or 18Z,
where 00Z = 00 (12:00 AM) Greenwich Mean Time and within the time window
of '+/- 3 hours. It may be a time delay of about 8 hours before data
update!
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Each SSM/I regional plot is a composite of the four DMSP (SSM/I)
satellites: F11, F13, F14 & F15.
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See The
Use of SSM/I Data in Operational Marine Analisis for more detailes
about NCEP SSM/I products.
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Neural Network algorithm
(OMBNN3)
is used to retrieve atmospheric variables from the SSM/I brightness temperatures.
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For more information about the OMBNN3 algorithm see: OMBNN3
page and for NN tutorial see NN tutorial
page
A
multi-parameter empirical ocean algorithm for SSM/I retrievals
by: Krasnopolsky,
V.M., W.H. Gemmill, and L.C. Breaker, 1998,Technical Note, OMB Contribution
No. 154, NOAA/NCEP/EMC, Canadian Journal of Remote Sensing, in press
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A
New Transfer Function for SSM/I Based on an Expanded Neural Network Architecture
by: Krasnopolsky
VM, WH Gemmill
& LC Breaker,
NCEP, EMC technical note OMB Contribution No. 137 (1996), Camp Springs,
MD, 38 pp.
Return to
SSM/I Ocean Products Page
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Return to Marine Modeling
and Analysis Branch Main Page
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Return to Operational
Products page
Please send comments and questions to Vladimir Krasnopolsky
Vladimir.Krasnopolsky@noaa.gov
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Last changed 21 January 1999