[GRASS-user] Possible to model exatmospheric radiation with r.sun?

[Dylan Beaudette]

On Sunday, May 22, 2011, Hamish wrote:
> Jonathan Greenberg wrote:
> > I was wondering if there is a way to turn the
> > atmosphere "off" in r.sun, and model a top of
> > atmosphere radiation?
> 
> I wonder if it enough to keep the cloud coefficients (i.e. coefbh, coefdh
> r.rescale'd GRIB files) at the default clear-sky conditions, and set
> the Linke coefficient at lin=1.00.
> 
> then compare how well the direct beam result matches the solar constant?
> (aka the see what happens experimental approach)
> 
> 
> Hamish
> 
> 

I would be interested in the result, and happy to test. Any tips on getting 
started with the coef maps and GRIB (not sure what that is)?

Dylan

-- 
Dylan E. Beaudette
USDA-NRCS Soil Scientist
California Soil Resource Lab
http://casoilresource.lawr.ucdavis.edu/