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Map_image questions
| Map_image questions [message #1344] |
Fri, 27 August 1993 10:37  |
doetzl
Messages: 4
Registered: January 1993
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Junior Member |
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I have a question concerning the Idl routine map_image. I have an image
of a 2d field, however the data is valid only over continents, and not
the sea. The data values for points over the sea are there they are
just not valid and are not flagged with any convenient missing data
flag. When I use map_image to warp this image onto a specific map
projection the bad sea values are interpolated with the good continental
values thus causing the values on the continental outlines to be
compromised. Is there a way around this? Does anyone have a map_image
like routine that will only interpolate a selected range of valid data
values? Is something like this possible/easy to write?
I'm open for suggestions.
Thanks
--Joe
|| Joe Doetzl | Climate Modeling Section ||
|| doetzl@pendragon.cgd.ucar.edu | National Center for Atmospheric Research ||
|| doetzl@ncar.ucar.edu | Boulder, Colorado (303) 497-1319 ||
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