[gradsusr] Area average only for California

[Yaqiang Wang]

You need to produce a maskout data first in which the values of grid
points inside California are positive and the others are negtive. Then
use 'aave' function to get area average.

On Tue, May 22, 2012 at 3:52 AM, rjmera <rjmera at coas.oregonstate.edu> wrote:
> Hi, all. I've looked at some of the previous posts on this subject but I
> wasn't sure if it covered what I wanted to do. What I'm trying to do is
> to get area average for an irregular polygon. To be specific, the state
> of California, for example. This would exclude other states in the
> vicinity and the ocean. How should I proceed?
>
> Robert
>
> I'm using this version of grads:
>
> Grid Analysis and Display System (GrADS) Version 2.0.a9.oga.1
> Copyright (c) 1988-2010 by Brian Doty and the
> Institute for Global Environment and Society (IGES)
> GrADS comes with ABSOLUTELY NO WARRANTY
> See file COPYRIGHT for more information
>
> Config: v2.0.a9.oga.1 little-endian readline printim grib2 netcdf
> hdf4-sds hdf5 opendap-grids,stn athena geotiff shapefile
> Issue 'q config' command for more detailed configuration information
> Loading User Defined Extensions table
> </home/server/pi/homes/rjmera/grads/Contents/Linux/Versions/2.0.a9.oga.1/x86_64/gex/udxt>
> ... ok.
>
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Dr. Yaqiang Wang
Chinese Academy of Meteorological Sciences (CAMS)
46, Zhong-Guan-Cun South Avenue
Beijing, 100081
China

yaqiang.wang at gmail.com

http://www.meteothinker.com
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