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Re: Interpolation [message #90341 is a reply to message #90340]

Sun, 22 February 2015 15:18

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

siumtesfai@gmail.com writes:

> As you have suggested, I did the interpolation for station data
>
> Do you think I have issue with Value_locate for latitude because my latitude ranges from -90 to 90 degree ?

As with so many things dealing with map projections, it depends. :-)

I have on occasion duplicated the first column and added it as the last
column in my longitude and data arrays in situations like these. This
allows my longitude vector to go from 0 to 360, which matches my
latitude vector. That's probably what I would do in this case. That also
sometimes helps with a small gap in your plot when doing filled
contours, etc.

See the Array Concatenation Tutorial for how to add a column to an array
in the IDL Way:

http://www.idlcoyote.com/tips/array_concatenation.html

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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[Message index]

		Interpolation By: siumtesfai on Sun, 22 February 2015 12:46
		Re: Interpolation By: David Fanning on Sun, 22 February 2015 13:09
		Re: Interpolation By: siumtesfai on Sun, 22 February 2015 13:44
		Re: Interpolation By: David Fanning on Sun, 22 February 2015 14:00
		Re: Interpolation By: siumtesfai on Sun, 22 February 2015 15:01
		Re: Interpolation By: David Fanning on Sun, 22 February 2015 15:18

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