Hi!
I’m processing Sentinel 1 data to get the information about soil moisture. I am using one of the semi-emprical models and when I try to get the first component of model - roughness model, the output contains of many ‘NO DATA’ pixels. Here is a part of formula I’m using:
(1-((Sigma0_VH / Sigma0_VV)/(0.095*((1.3+(sin(rad(localIncidenceAngle)))^1.5)^1.4)))
I’ve tried to divide the formula in pieces, to check which part is generating problems. I found out that everything is fine when I execute this part (let’s call it ‘A’):
A = ((Sigma0_VH / Sigma0_VV)/(0.095*((1.3+(sin(rad(localIncidenceAngle)))^1.5)^1.4))
But when I try: (1 - (A)), then I get ‘NO DATA’ in parts, which should have negative values. The variable type is double. Does anyone know what’s the problem?
Agnieszka