[ncl-talk] Need help for extracting the polygon average value for a parameter from wrfout* file using a shapefile

[Dipak Sahu]

Dear NCL developers and experts
    Now I have some issues with wrfout files from WRF model. I need to
extract the polygon average value of surface temperatures for each polygon
using a shapefile over southern California. I have the shapefiles with
.shp, .dbf, .sbx, .shx and .sbn.

I just able to plot the variables for different polygon (i.e, for different
county) with the help of the sample script "shapefiles_11.ncl", but still I
am facing problem how to make the average over the county and how to save
the masked county data in .nc file or .csv file with latitude, longitude
and variable.

I am waiting for any suggestions and help from the NCL experts how to
resolve this issue. If any sample scripts are there it will be more
appreciable.

with thanks and regards
Dipak
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