I have precipitation raster map from WorldClim website for a watershed in Central Asia. How can I generate R factor map (Erosivity) for RUSLE calculation using WorldClim database in ArcMap?

[MeldebekovaGauhar]

#RUSLE #erosivity

[JayantaPoddar]

In Raster Calculator, you could have an expression as below

Con(InRas1 < 0, 0, Con(InRas1 < 850, ((0.04830)*(InRas1)**(1.610))/(17.02), ((587.7) - (1.219)*(InRas1) + (0.004105)*(InRas1)**(2.0))/(17.02)))

where InRas1: Input Precipitation Raster

Assumption: Precipitation values are in mm

[MeldebekovaGauhar]

Thank You vert much!:)