[gradsusr] Solar Radiation

[Jeff Duda]

That's a wide open question.  Take your pick and start looking around.
You'll need temperature data, three-dimensional wind components, and
moisture variables (RH, dewpoint, mixing ratio etc) for at least 3
consecutive time frames.

Jeff

On Thu, Jan 24, 2013 at 2:03 PM, Brian Walsh <brianw at provair.com> wrote:

>  Thanks Jeff.
>
>
>
> Any idea what parameters I’d need to download and what the formula would
> look like? Would these parameters be available from the GFS (or similar)
> model?
>
>
>
> Brian
>
>
>
> *From:* gradsusr-bounces at gradsusr.org [mailto:
> gradsusr-bounces at gradsusr.org] *On Behalf Of *Jeff Duda
> *Sent:* January-24-13 4:27 PM
> *To:* GrADS Users Forum
> *Subject:* Re: [gradsusr] Solar Radiation
>
>
>
> Hey Brian,
> I bet you could estimate radiation as a residual from the thermodynamic
> equation.  You could estimate the local change, the advection, the
> molecular diffusion, and the latent heating from water phase changes which
> only leaves radiation as the other major term (making assumptions about the
> scale of the features you are examining, of course).  Then combine those
> and assume that whatever is left over is due to radiation.  Then I think
> you would multiply by air_density*Cp to get a radiation value in W/m^2.
>
> Jeff Duda
>
> On Thu, Jan 24, 2013 at 1:40 PM, Brian Walsh <brianw at provair.com> wrote:
>
> Hello,
>
>
>
> Are there any models which output the amount of daily solar radiation
> (whether NWP or reanalysis model)? Or, is there a way of determining this
> from existing variables?
>
>
>
> Thanks in advance.
>
>
>
> Brian
>
>
>
>
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>
> --
> Jeff Duda
> Graduate research assistant
> University of Oklahoma School of Meteorology
> Center for Analysis and Prediction of Storms
>
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-- 
Jeff Duda
Graduate research assistant
University of Oklahoma School of Meteorology
Center for Analysis and Prediction of Storms
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