Re: getting data to align with coastlines

From: Adam Phillips <asphilli_at_nyahnyahspammersnyahnyah>
Date: Wed, 24 Jun 2009 11:15:17 -0600

Hi Mark,
i was unable to download the data from your ftp site, as the site didn't
seem to allow anonymous logins.

Regardless, I looked at the script you attached. You are correctly
attaching the 2D latitudes and longitudes to the array that houses your
ccsm data:
ccsm_at_lat2d = ccsm_if->TLAT ; has correct units
ccsm_at_lon2d = ccsm_if->TLONG

so no problem there. I'm guessing the error messages are being caused by
the fact that you are doing a calculation within your plot call, and
thus the metadata (including the attached lat2d/lon2d arrays) is/are
being destroyed:
plots(2)=gsn_csm_contour_map_ce(wks,ccsm/100,res)
change the above line to these 2 lines:
ccsm = ccsm/100. ; preserve metadata
plots(2)=gsn_csm_contour_map_ce(wks,ccsm,res)
and I bet that works.
Best regards,
Adam

Mark.Collier_at_csiro.au wrote:
> Hi,
> I've been able to get all bar one dataset to draw properly in my panelled plot. I've attached the ncl script and have put the script and data on my ftp server,
> ftp.dar.csiro.au,macftp,macftp
> looking for help to get the NCAR-POP ocean model data (represented by the ccsm array) to align with coastlines...
> I don't really understand how to set lat/lon units when the lat2d/lon2d attributes are used for irregular grids which is what the warnings are telling me.
> Many thanks
> Mark.
>
>
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-- 
--------------------------------------------------------------
Adam Phillips			             asphilli_at_ucar.edu
National Center for Atmospheric Research   tel: (303) 497-1726
ESSL/CGD/CAS                               fax: (303) 497-1333
P.O. Box 3000				
Boulder, CO 80307-3000	  http://www.cgd.ucar.edu/cas/asphilli
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Received on Wed Jun 24 2009 - 11:15:17 MDT

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