[gradsusr] Moisture Convergence Data

[Abatan Abayomi]

Hey Mohsen,

You don't need to look for these data again. Equation (3) above will
compute vapor pressure for you once you have Dew point temperature,
likewise you get mixing ratio from equation (5).

Hope that help you?

Abayomi


On Sun, May 26, 2013 at 3:07 AM, Mohsen Soltani <soltani.clima at gmail.com>wrote:

> Hi,
>
> I'm trying to display "Moisture Convergence" using the following script,
> which written by Michael Maxwell:
>
> ************************************************************************
> * rh    = Relative Humidity in %
>  * t     = Temp at *set level in degrees Kelvin
> * tc    = Temp in degrees C
> * td    = Dewpoint at *set level in degrees C
> * e     = Vapor pressure
> * mixr  = Mixing ratio
> * u     = U-wind in m/s
> * v     = V-wind in m/s
> * mconv = moisture convergence/divergence.
>
> 'tc = (t-273.16)'
> 'td = tc-((14.55+0.114*tc)*(1-0.01*rh) + pow((2.5+0.007*tc)*(1-0.01*rh),3)
> + (15.9+0.117*tc)*pow((1-0.01*rh),14))'
> 'vapr = 6.112*exp((17.67*td)/(td+243.5))'
> 'e = vapr*1.001+(lev-100)/900*0.0034'
> 'mixr = 0.62197*(e/(lev-e))*1000'
> 'mconv = (-1)*hdivg(u*mixr,v*mixr)*1e4'
> 'd mconv'
> ********************************************************
>
> I've got all the required data to display MC, except for "vapor pressure
> and mixing ratio". Do you possibly know where I can get those data? Would
> you share the link(s) with me, please?
>
>
> Thank you,
> Mohsen
>
> --
> some are weather-wise some are otherwise!
> --
> Best Wishes,
> (Mr.) Mohsen Soltani
> Climatology Grad Student (M.Sc.),
> Faculty of Geography, University of Tehran, Tehran, Iran
> Tel: (+98) 9119772934
> e-mail: soltani.clima at gmail.com
>
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>
>


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