wrong coordinates when plotting from an .nc file

Costas Douvis cdouvis at YAHOO.COM
Mon Jan 7 03:41:07 EST 2008


Thank you for your response Brian

My grid has an interval of 50km. So when I use the usual "rectilinear" map projection (where the coordinates are latitude and longitude and a "square" of 10x10 degrees does appear as a square) my domain should look stretched towards the pole, narrow towards the equator and curved. But it doesn't: it appears rectangular

I'm running SUSE 10.0 - 32bit
and Grads version 1.8SL11

Please let me know if this information is still not enough

Kostas

Date:    Fri, 4 Jan 2008 07:18:23 -0800
From:    brian vant-hull

Subject: Re: wrong coordinates when plotting from an .nc file

You'll need to be more precise...for example if the
coordinates are in equal increments of lat and lon
then in an equal distance mapping they'd get narrower
towards the poles, but the typical lat-lon plot would
stretch it.  You must have something different, but
hard to tell what it is.

I may not be able to answer the question, but for
someone else to answer it they'll need to know alot
more details!

-Brian.

--- Costas Douvis  wrote:

> Hello and happy new year to everyone
>
> I have problem plotting the data from an .nc file. I
> believe that the values of the field are correct but
> the coordinates are "stretched" so that they fit in
> a rectangle. The real grid comes from an RCM model
> and is getting narrower towards the equator.
>
> Thanks in advance for any help
> Kostas Douvis




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