[gradsusr] data not in GRIB format

[Huddleston, John]

Hao,

Based on the information you sent, here is a representative control file to plot your (COL,ROW)=(94,67) grid.

dset ^YourFile.ncf
dtype netcdf
title Vertically integrated atmos chem/aerosol vbles
pdef 94 67 lcc 24.828 100.01 1 1 30 60 113.7 30000 30000
undef -9999
xdef 94 linear  95.769    0.3659
ydef 67 linear  24.828    0.2644
...


John Huddleston, PhD, PE


From: gradsusr-bounces at gradsusr.org [mailto:gradsusr-bounces at gradsusr.org] On Behalf Of Hao He
Sent: Friday, May 07, 2010 8:43 AM
To: GrADS Users Forum
Subject: Re: [gradsusr] data not in GRIB format

John,
   I get the WRF WPS projection information as following:

e_we              =  98, 118,
 e_sn              =  70,  103,
 geog_data_res     = '10m','2m',
 dx = 30000,
 dy = 30000,
 map_proj = 'lambert',
 ref_lat   =  34.8,
 ref_lon   = 113.7,
 truelat1  =  30.0,
 truelat2  =  60.0,
 stand_lon =  113.7,

My key point here is : CMAQ domain is a little bit smaller than WRF domain because we eliminate the outside columns and rows to diminish lateral effects. So my WRF domain has 98*70 grids while my CMAQ domain has 94*67 grids.

so the question is: how to set (isize, jsize) and (iref, jref) in pdef variable? I am confused.

Best

Hao


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