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Re: Separating land and ocean data in IDL [message #91416 is a reply to message #91413]

Fri, 10 July 2015 22:47

siumtesfai
Messages: 62
Registered: April 2013

Member

Hello all,

Any suggestion on my question . Please I need your help . If the question is not clear, please also let me know

Best regards

On Friday, July 10, 2015 at 3:33:25 PM UTC-4, siumt...@gmail.com wrote:
> Hello all,
>
> I have climate model output data in IDL sav file format and NCDF file.
>
> Dimension of the data
>
> Sz=size (DATA)
>
> longitude= sz(1) : 0-360 degree
> latitude = Sz(2) : -90S to 90N
> pressure = Sz(3) : 1000hPa to 10hPa
> time = Sz(4) : 1979 to 2005
>
>
> The data is global. I can extract regions . For example , North america domain by restricting my longitude and latitude. That is easy. I would use "Where" command
>
>
> E.g lat=where( latitude GE lat1 and latitude LT lat2)
> lon =where( longitude GE lon1 and longitude LT lon2)
>
> DATA1=data(lon,lat,*,*)
>
>
> My question is how can you extract only data at the continental north america over land. I am not interested in analyzing data over the oceans ( i.e North Pacific and Atlantic )
>
> Waiting for your suggestion.
>
> Thank you for you help
>
> Best regards

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[Message index]

		Separating land and ocean data in IDL By: siumtesfai on Fri, 10 July 2015 12:33
		Re: Separating land and ocean data in IDL By: siumtesfai on Fri, 10 July 2015 22:47
		Re: Separating land and ocean data in IDL By: shilosh on Sun, 12 July 2015 00:42
		Re: Separating land and ocean data in IDL By: Phillip Bitzer on Mon, 13 July 2015 09:13
		Re: Separating land and ocean data in IDL By: siumtesfai on Thu, 16 July 2015 14:28

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