[gradsusr] Moisture flux convergence/divergence

[Hyacinth Nnamchi]

Hello,

This is not directly about GrADS but since most of address similar problems, I guess someone on this forum will be able to answer my question.

I understand that to calculate moisture transport, given zonal, meridional winds and specific humidity, can simply do:
'define zon=uwnd.1*shum.3'
'define mer=vwnd.2*shum.3'
'd zon,mer'

But, I want to plot vectors indicating field of net moisture flux (all arrows converging/diverging) instead of just transport.

Thanks for any ideas.

Hyacinth
 		 	   		  
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