Other
Scientific paper
Jun 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30k...2p&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 11, pp. 2-1, CiteID 1548, DOI 10.1029/2003GL017178
Other
3
Oceanography: General: Remote Sensing And Electromagnetic Processes (0689), Oceanography: Physical: Instruments And Techniques, Meteorology And Atmospheric Dynamics: Instruments And Techniques, Global Change: Remote Sensing, Global Change: Instruments And Techniques
Scientific paper
Errors in brightness temperatures for channel 4 in the Advanced Very High Resolution Radiometer (AVHRR) onboard the NOAA-14 spacecraft are examined. The errors involve a low frequency of occurrence for some values, and a corresponding enhancement of frequency for others. Errors appear to be related to the conversion of analog to digital values. Unfortunately, it is not possible to identify and separate erroneous values. The most apparent errors in geophysical products derived from AVHRR's channel 4 occur at low brightness temperatures, therefore sea surface temperatures in high latitudes (below about 6°C) and cloud-related products must be used with caution, as they may have systematic errors as large as 0.5°C.
Arbelo Manuel
Brown James
Evans Robert
Halliwell Vicki
Kilpatrick Katherine
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