[gradsusr] mass of water in layers

[Jeffrey Duda]

I got a nice script from the script
library<http://www.iges.org/grads/gadoc/library.html>that doesn't
appear to be there anymore, but I've attached it to this
email.  It will plot an arbitrary cross section using the collect command.
As far as obtaining water vapor mass, really the only way is to use the
density of dry air to get water vapor density, or q*rho, where q is water
vapor mixing ratio and rho is dry-air density.

Jeff Duda

On Mon, Sep 26, 2011 at 10:54 AM, Simon Krichak <shimon at cyclone.tau.ac.il>wrote:

> **
> Mason,
> It does not look that simple since I need to plot not the mixing ratios
> themselves but those multiplied by mass of air in each of the layers.
> Simon
>
>
> ----- Original Message -----
> *From:* Rowell, Mason D. <Mason.D.Rowell-1 at ou.edu>
> *To:* GrADS Users Forum <gradsusr at gradsusr.org>
> *Sent:* Monday, September 26, 2011 6:09 PM
> *Subject:* Re: [gradsusr] mass of water in layers
>
> Simon,
>
> You should easily be able to set the dimensions such that the display
> output yeilds a cross section, at least along some latitude or longitude
> line, but I know there are ways to do it along any line of choice. Just
> allow only the z and some horizontal dimension to vary, with all other
> diimensions fixed. Are you looking for vertically integrated water mass, or
> just wishing to plot isopleths of mixing ratio?
>
> Mason
>  ------------------------------
> *From:* gradsusr-bounces at gradsusr.org [gradsusr-bounces at gradsusr.org] on
> behalf of Simon Krichak [shimon at cyclone.tau.ac.il]
> *Sent:* Monday, September 26, 2011 7:30 AM
> *To:* GrADS Users Forum
> *Subject:* [gradsusr] mass of water in layers
>
>  Dear GrADS User,
>
> I have the mixing ratio data and other parameters from the NNRP defined on
> unevenly spaced isobaric surfaces and would like to draw vertical
> crossection of the water mass in the layers. Would appreciate your help if
> possible.
>
> Regards,
> Simon Krichak
>
>
>
>  ------------------------------
>
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-- 
Jeff Duda
Iowa State University
Meteorology Graduate Student
www.meteor.iastate.edu/~jdduda <http://www.meteor.iastate.edu/%7Ejdduda>
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