[osgeo4w-dev] grid statistiscs by polygon using OsGeo4W

Siebe Bosch siebe at hydroconsult.nl
Thu Apr 4 00:41:07 PDT 2013

Dear list,

Not sure whether this is the right place to ask this question, but I've 
been busy for quite some time trying to figure out the following:

  * I have a large number of NetCDF-files (one file for each day and
    each file containing 24 data bands = hours)
  * I have a shapefile with polygons

Now for each polygon in the shapefile I need to create a time series 
with values from NetCDF.
This means that for every timestep I will have to extract the average 
value from the NetCDF within each polygon.

 1. Is there a way I can do this from the command line or a DLL using
 2. How fast is the routine? I will have to process e.g. 365 * 10

Thanks in advance for your response.

Kind regards,
Siebe Bosch

Lulofsstraat 55, unit 47
2521 AL Den Haag
The Netherlands

web: http://www.hydroconsult.nl
e-mail: siebe at hydroconsult.nl
phone: +31(0)70 250 0580
mobile: +31(0)6 17 682 689

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