regrid 2.5x2.5 to t30 problem
hobo at ATMOS.UCLA.EDU
Mon Jun 22 19:12:53 EDT 2009
I'm trying to regrid a 2.5x2.5 uniform grid (144 x 72) to t30 gaussian
grid (96x48) using box averaging with "voting" as in the example in
the regrid2.doc file.
define prect30=regrid(prec,96,48,vt,0.60,0.20) and I get 4 x 5 points
total in the new grid. Plus the lon extent only goes from 0 264. I
have also tried just box averaging (regrid,96,48)with the same result.
This seems to be the result of my not inputting a specific dx and dy
but I'm going to a gaussian (non-uniform) grid.
What am I doing wrong?
ga> define pt30=regrid(prec,96,48,vt,0.60,0.20)
number of arguments = 6
the output grid is UNIFORM lat/lon:
dx = 96.00 deg and dy = 48.00 deg
# points in i(lon) = 4 # points j(lat) = 5
lon extent = 0.00 to 264.00 lat extend = -90.00 to 90.00
regrid method is: box averaging with VOTING
vote parameters: max fract area = 0.60 min frac area = 0.20
P.S. the example in regrid2.doc gives define i21=regrid(index,
48,40,12,0.60,0.20). Does anyone know what the "12" in the C1 option
Joyce E. Meyerson
Dept. of Atmospheric and Oceanic Sciences
Climate Systems Interactions Group
Math Science 7235
hobo at atmos.ucla.edu
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