[GRASS-user] TRMM (3B43) handling

nikos ves vesnikos at gmail.com
Thu Nov 18 07:39:05 EST 2010


On Wed, 2010-11-17 at 10:08 +0100, Markus Metz wrote:
> Another option:
> get binary grids from here
> ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B43_V6/
> read
> ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B43_V6/3B43.ctl
> 
> import into a latlon location with r.in.bin -f -b north=50 south=-50
> east=180 west=-180 rows=400 cols=1440, e.g.
> r.in.bin -f -b input=3B43.100101.6.precipitation.bin
> output=3B43.100101.6.precipitation north=50 south=-50 east=180
> west=-180 rows=400 cols=1440 

i was comparing the output rasters with a png [1] a same period. 
eg Jul_2006. it seems that in the bin [2] file N is S and vise versa.
The phenomenon can be seen clearly by comparing the western coast of
India between [1] and [2]

I don't think I'm doing something wrong, but can anyone cross check just
to be sure I didn't anything stupid on my side?

Best regards 

Ves Nikos



[1] http://tinyurl.com/382rmhe (tinyurl not to spam)
[2] http://tinyurl.com/3xxpzfw (3B43.060801.6.precipitation.bin)



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