Constructed using the method of Reynolds and Smith (1995).
The new climatology was built from two intermediate climatologies:
a 2 degree SST climatology developed from in situ data for the
period 1971-2000, and a 1 degree SST climatology for the period
1982-2000 derived from the second version optimum interpolation (OI.v2) SST
analysis. OI SST V2 data described in Reynolds, R.W., N.A. Rayner, T.M.
Smith, D.C. Stokes, and W. Wang, 2002: An Improved In Situ and Satellite
SST Analysis for Climate, J. Climate