[gradsusr] data not in GRIB format

[Huddleston, John]

Hao, this might be closer if it is 30KM. Change the ytime and year accordingly. John

dset ^YourFile.ncf
dtype netcdf
title Vertically integrated atmos chem/aerosol vbles
pdef 94 67 lcc 24.87 -127.10 1 1 33 45 -114.00 30000 30000
undef -9999
xdef 94 linear -131.336    0.48
ydef 67 linear  24.87      0.300
zdef 1 linear 1 1
tdef 24  linear 00:00Z20apr2006 1hr
vars 8
NO2=>no2  1 t,z,y,x NO2
NO=>no  1 t,z,y,x NO
O=>o  1 t,z,y,x O
O3=>o3  1 t,z,y,x O3
NO3=>no3  1 t,z,y,x NO3
CO=>co  1 t,z,y,x CO
CXO3=>cxo3  1 t,z,y,x cxo3
NH3=>nh3  1 t,z,y,x NH3
endvars

________________________________
From: gradsusr-bounces at gradsusr.org [gradsusr-bounces at gradsusr.org] On Behalf Of Hao He [haohe.umcp at gmail.com]
Sent: Wednesday, May 05, 2010 11:59 AM
To: GrADS Users Forum
Subject: Re: [gradsusr] data not in GRIB format

That is great! My grid size is 30 km instead of 36 km, and I think the difference is trivial. I will read the format and modified it to my own grid.
Thanks a lot!

Hao

On Wed, May 5, 2010 at 1:52 PM, Huddleston, John <Huddleston at cira.colostate.edu<mailto:Huddleston at cira.colostate.edu>> wrote:
Hao

If it is 36 kilometer CMAQ netCDF you can probably start with this grid control definition.

dset ^YourFile.ncf
dtype netcdf
title Vertically integrated atmos chem/aerosol vbles
pdef 148 112 lcc 16.77 -121.51 1 1 33 45 -97.00 36000 36000
undef -9999
xdef 148 linear -139.285    0.57565
ydef 112 linear  16.77      0.3600
zdef 1 linear 1 1
tdef 72  linear 00:00Z20apr2006 1hr
vars 8
NO2=>no2  1 t,z,y,x NO2
NO=>no  1 t,z,y,x NO
O=>o  1 t,z,y,x O
O3=>o3  1 t,z,y,x O3
NO3=>no3  1 t,z,y,x NO3
CO=>co  1 t,z,y,x CO
CXO3=>cxo3  1 t,z,y,x cxo3
NH3=>nh3  1 t,z,y,x NH3
endvars

john Huddleston, PhD, PE
________________________________
From: gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org> [gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org>] On Behalf Of Hao He [haohe.umcp at gmail.com<mailto:haohe.umcp at gmail.com>]
Sent: Tuesday, May 04, 2010 1:58 PM
To: gradsusr at gradsusr.org<mailto:gradsusr at gradsusr.org>
Subject: [gradsusr] data not in GRIB format

Hi,
   I have a 2D data set with uneven Lon and Lat distribution. I notice that the GRIB data for GrADS has even grids, so I am wondering whether it is possible to display this data set on GrADS? Thanks for help!

Hao

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