KAPLAN COADS_clim4x4: COADS climatology from standard release [1,1a], 1951-1980, 4x4 deg, produced by Y. Kushnir recipe: weighting proportional to number of observations, periodic 1-2-1 filtering in time, 4th order Shapiro filter in space
Resolution: 4x4; Longitude: global; Latitude: global; Time: [Jan,Dec]; monthly