Re: function

On 11/4/11 1:18 AM, nlcheng wrote:
> I have two questions. One is below:
> The cmaq model has 23 levels and I want to calculate the Column
> concentration of SO2 that is some integration from the ground to the
> free atmosphere .whcih function should use in the ncl ??
===
You can look yourself. Please type "integrate" in the google
advanced search. Several functions will be listed, including

 
http://www.ncl.ucar.edu/Document/Functions/Contributed/dpres_plevel_Wrap.shtml

The read Example 1 to show how to use the layer thicknesses
for integration.
===

> The other is below:
> The output of the SO2 is ppmv in the model and I want to convert it to
> mg/m^3,which function should I use in the ncl?
===
This is basic science. ncl-talk is for NCL related questions.

   http://www.air-dispersion.com/formulas.html
          click: Converting ppmv to mg/m3
===
> hope for your help
> Thank you very much!
> 
>
>
>
>
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Received on Fri Nov 4 07:48:53 2011