>
>I'm trying to remap a POP output to a SSM/I polar stereographic projection.
>Can somebody suggest an easy way to do it in NCL?
>
Hello,
NCL invokes a weight array generated by the SCRIP program.
NCL does not generate the required weights.
So somehow you will have to get or generate the appropriate weights.
I have not used SCRIP so I can not offer any advice.
When you say "to a SSM/I polar stereographic projection".
What do you mean?
I know you have an account on SCD systems.
An NCL script that loops over mutiple files and
plots the input POP and output 1x1 grids on a polar
sterographic projection is at:
/fis/cgd/home/shea/ncld/TEST/cdeser/ssmi.DailyRemap.ncl
This script may be *much* more complicated than
what you might need. It reads/remaps/plots/create netCDF [variable type short]
The real key is the wgt file. In the above example, the file
is map_gx1v3_1x1d_bilin_da_010808.nc. For historical reasons
it is accessed via:
z1x1 = PopLatLon(zPop,"gx1v3","1x1d","bilin","da","010808")
You can see both original POP grid and interpolated fields at
tempest: /ptmp/shea/SSMI_1x1/
any of the following:
-rw-r--r-- 1 shea ncar 1633146 Mar 7 08:27 ssmi.remap.1979.ps
-rw-r--r-- 1 shea ncar 1683986 Mar 7 08:27 ssmi.remap.1980.ps
-rw-r--r-- 1 shea ncar 1627121 Mar 7 08:27 ssmi.remap.1985.ps
-rw-r--r-- 1 shea ncar 1665418 Mar 7 08:27 ssmi.remap.1990.ps
-rw-r--r-- 1 shea ncar 1684652 Mar 7 08:27 ssmi.remap.1995.ps
-rw-r--r-- 1 shea ncar 1602813 Mar 7 08:27 ssmi.remap.2000.ps
-rw-r--r-- 1 shea ncar 1660938 Mar 7 08:27 ssmi.remap.2001.ps
In this case the variable being plotted is ice fraction/
Regards
Dennis Shea
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