| Resolution returned from MAP_PROJ_IMAGE? [message #64017] |
Mon, 24 November 2008 09:26 |
bryan.s.hong
Messages: 12
Registered: November 2008
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Junior Member |
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I'm using NLDAS (North America Land Data Assimilation System) data
which has 0.125 degree resolution with 464 X 224 grid boxes, and I'm
trying to project this data to the Albers map projection using the
code below. The LIMIT key used in the MAP_PROJ_IMAGE indicates the
total area coverage of NLDAS. Using this code, the result returns with
464 X 224 grid boxes which are the exact same size as the original
data input. How can I know the spatial resolution of the result. I
believe the result should have a spaptial resolution in meters, right?
Is there any way to give a specific resolution when the original data
are being wapred?
sMap = MAP_PROJ_INIT(103, SEMIMAJOR_AXIS=6378137.0,
SEMIMINOR_AXIS=6356752.31414,$
FALSE_EASTING=0., FALSE_NORTHING=0,
STANDARD_PAR1=29.5,$
STANDARD_PAR2=45.5, CENTER_LATITUDE=23.,
CENTER_LONGITUDE=-96.)
Result = MAP_PROJ_IMAGE(Image, [-125.,25.,-67.,53.],
Map_structure=sMap, missing=0)
Thanks.
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