Re: Lookin' for a function

Thanks, Dennis. The only one I'd not seen was the site to check 'em
against. I've got something done. Now I've gotta check 'em!

gerry

Dennis Shea wrote:
> I do not know if WRF has a preferred equation but, I think,
> all you need is temperature. Take a look at:
>
> http://cires.colorado.edu/~voemel/vp.html
>
> Many of these are of the form
> log(pw) = ...
>
> You will have to modify slightly to return pw
>
> The simplest is Bolton's formula:
> pw = 6.112 exp(17.67 * t / (t+243.5) ) ; t in degC ; pw will be hPa
> ===================
> You can check answers against
> http://www.s-ohe.com/Water_cal.html
> Good luck
> D
> Gerry Creager wrote:
>> Does anyone already have a canned function to calculate water vapor
>> pressure from WRF output? If not, it appears trivial to write, but
>> there's no sense writing it if someone else already has!
>>
>> gerry
>>
>
>

-- 
Gerry Creager -- gerry.creager_at_tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
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