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The OISST source codes for the daily OISST AVHRR-only and AVHRR+AMSR are provided here for reference only, to maintain transparency of the algorithm and processes used in creating the products. The source code is not intended to be portable to any computer system(s) beyond that of the original producer's environment. The source code should be examined in conjunction with other documentation that describe the algorithm, provided at this website.

NCDC's Extended Reconstructed Sea Surface Temperature (ERSST) Analysis Data
This is a 2 degree monthly analysis from January 1854 to present.

NCEP Weekly Sea Surface Temperature Anomalies (OISST)
This is a 1 degree weekly analysis from November 1981 to present.

OISST is supported by the Climate Data Records Program
OISST documentation and source code can be found at their website.