NOAA NCDC GCPS MONTHLY GRIDDED precipitation anomalies[ X Y | T]
Independent Variables (Grids)
grid: /T (months since 1960-01-01) ordered (Jan 1851) to (Dec 1993) by 1.0 N= 1716 pts :grid
grid: /X (degree_east) periodic (0) to (5W) by 5.0 N= 72 pts :grid
grid: /Y (degree_north) ordered (90S) to (90N) by 5.0 N= 37 pts :grid
Baker, C.B., J.K. Eischeid, T.R. Karl, and H.F. Diaz, 1994: The quality control of long-term climatological data using objective data analysis. Preprints of AMS Ninth Conference on Applied Climatology, Dallas, TX., January 15-20, 1995.