Comparative Analysis of Multiple Gridded Precipitation Datasets for Assessing Their Reliability across Various Physiographic Zones in Odisha, India
Aims: To evaluate and intercompare six prominent gridded precipitation products—IMD (gauge-based interpolated), CHIRPS, NASA-POWER, PERSIANN-CDR (satellite-derived), ERA5, and ERA5-Land (reanalysis)—against IMD rain gauge observations across four physiographically diverse districts of Odisha, India, and to assess the e...