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Re: map MODIS HDF data to Mercator conformal projection [message #43949] Tue, 10 May 2005 07:34 Go to previous message
wita is currently offline  wita
Messages: 43
Registered: January 2005
Member
I do not really see why you would like to use IDL for this job when
MRT can do it for you. Also the MODIS HDF files are in a Sinusoidal
projection. This projection is supported by IDL's MAP_SET command
but i never used it so I can't help you with its parameters.

My advice is simple:
-use MRT to process the MODIS HDF files and specify the output corners
to project them onto a fixed grid.
-Write the result to disk as a generic binary file
-Use IDL READU function to read the binary data into an IDL array
-Use MAP_SET to set the right projection onto your data.

and you're done.

best regard,

Allard
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