Table 1: Gridded observed data sets used for validation of mean sea level pressure (1), geopotential (2), temperature (3), wind (4), and precipitation (5).

Dataset name Horizontal Resolution Number of grid points Longitude Latitude Period Temporal resolution Source ERA401,2,3,4,5 1.125° 0–360 global 90-90 global 1957–2002 monthly Combined (Gauge+Satellite) ECMWF GPCC45 0.5° 0–360 global 90-90 global 1901–2006 monthly Gauge (land surface) German Weather Service IMD-RF5 1.0° 66.5–101.5 (°E) 6.5–38.5 (°N) 1951–2003 daily Gauge (land surface India) IMD