Tutorial script question; hyam and hybm

From: Erik Noble <enoble_at_nyahnyahspammersnyahnyah>
Date: Wed, 17 Dec 2008 17:43:32 -0500

In the NCL application example for zonal averages:
http://www.ncl.ucar.edu/Applications/Scripts/zonal_cn_4.ncl

What are the 2 variables ³hyam² and ³hybm² representing?
I am to plot the exact same type of plot for WRF data.
-Erik

;************************************************
   a=in->hyam ; select hyam
   b=in->hybm ; select hybm
   p=in->P0 ; select P0
   eta = (a+b)*p ; calc eta
   eta = eta/100 ; scale eta by 100
;************************************************

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Received on Wed Dec 17 2008 - 15:43:32 MST

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