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North American Regional Reanalysis (NARR) projection [message #76853]

Tue, 05 July 2011 15:07

MarioIncandenza
Messages: 231
Registered: February 2005

Senior Member

Hey out there,

Anyone have experience working with the NARR weather dataset? It's
weather data on a 33km grid. We are trying to compare it with some
other data at higher resolution, and working on binning up the fine-
resolution data to match the NARR grid.

Based on the information at this page http://www.esrl.noaa.gov/psd/data/narr/format.html,
we did this to project the data:

narr_proj=map_proj_init('Lambert Conformal Conic',
STANDARD_PAR1=50,STANDARD_PAR2=50,CENTER_LONGITUDE=-107)

This gave us a grid that was regularly spaced, but not quite
rectangular, with the X values skewing about 40km from the bottom to
the top of the grid. Not gonna work for regridding data.

Has anyone succeeded in transforming the NARR data to a real
rectangular coordinate system for matching to other data?

Thanks,

--Edward H.

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