Thank you for your help. I am a beginner in ferret and I couldn't figure out how to mask it out. Can you help me? I have a global precipitation NetCDF data and I have also a NetCDF of a river basin. I wanted to have time series precipitation of the basin. I tried to make the precipitation data missing else where except in the basin. I created a global netcdf data with zero values by multiplying the precipitation data by zero, then made the river basin netcdf to have a value of 1. Then, I tried to add them up to get data with values of zero and 1 to create mask from it using those with value of 1 and then multiply the global precipitation data by the masking data. But I got this error message:
"inconsistent sizes of data regions: X axis
BL[D=1] has 263 points (I=000:262)
_expression_ has 720 points (I=001:720)"
Do you have some idea to overcome this problem?
Johns Hopkins University
--- On Fri, 1/20/12, Ansley Manke <ansley.b.manke@xxxxxxxx> wrote: