- NASA International Satellite Cloud Climatology Project (ISCCP) C2, 1983-1991
Monthly averages for each 3-hour period during a day, and monthly
average for all data.
News as of August 23, 1993: ISCCP Global Processing Center is
changing the algorithm for cloud detection. The "old" algorithm
which was used to generate C1 and C2 products so far will be
replaced by the "new" algorithm. The new algorithm will improve the
cloud detection in the polar regions. The production of "C" level
products of the current and previous months will progress in
parallel. It is expected to have 10-year (July 1983 to June 1994)
ISCCP C products in Fall 1995. The C1 and C2 products using the
"old" algorithm stops at the end of June 1991. Again, if you are
interested in areas other than the polar regions (cutoff at about 55
latitude), little change of the cloudiness caused by using the new
algorithm is expected.
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