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Precision and radiosonde validation of satellite gridpoint temperature anomalies. I - MSU channel 2. II - A tropospheric retrieval and trends during 1979-90Monthly 2.5-deg gridpoint anomalies in the Tiros-N satellite series Microwave Sounding Unit channel 2 brightness temperatures during 1979-1988 are evaluated with multiple satellites and radiosonde data for their climate temperature monitoring capability. The MSU anomalies are computed about a 10-yr mean annual cycle at each gridpoint, with the MSUs intercalibrated to a common arbitrary level. The monthly gridpoint anomaly agreement between concurrently operating satellites reveals single-satellite precision generally better than 0.07 C in the tropics and better than 0.15 C at higher latitudes. The removal from channel 2 of the temperature influence above the 30-kPa level is addressed, providing a sharper and thus potentially more useful weighting function for monitoring lower tropospheric temperatures.
Document ID
19920069758
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Spencer, Roy W.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Christy, John R.
(Alabama, University Huntsville, United States)
Date Acquired
August 15, 2013
Publication Date
August 1, 1992
Publication Information
Publication: Journal of Climate
Volume: 5
Issue: 8, Au
ISSN: 0894-8755
Subject Category
Meteorology And Climatology
Accession Number
92A52382
Distribution Limits
Public
Copyright
Other

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