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 nameHorizontal ResolutionNumber of grid pointsLongitudeLatitudePeriodTemporal resolutionSource

ERA401,2,3,4,51.125° 0–360 global90-90 global1957–2002monthlyCombined (Gauge+Satellite)
ECMWF
GPCC450.5° 0–360 global90-90 global1901–2006monthlyGauge (land surface)
German Weather Service
IMD-RF51.0° 66.5–101.5 (°E)6.5–38.5 (°N)1951–2003dailyGauge (land surface India)
IMD