[R-sig-Geo] reading into R IPCC data files

[Thomas Adams]

Marco,

I just took a look at the data; unfortunately, it's not in a very usable format without reformatting it for
importing the data into either R or a GIS, such as GRASS GIS. I'm sure an experienced R programmer could
write a clever R script to do what you want. Personally, I would write a Perl script to reformat the data to
import directly into GRASS GIS. I looked at the HADCM3_A2a_PREC_1980.tar.gz data and it is cell-centered.
GRASS grids are referenced by the lower-left grid corner. I noticed that there are many different grid spacings
and not all the grids are square, they are rectangular. Bottom line is that a lot of care is going to be needed
to manipulate these data sources. I have to think that somewhere there must be this same data available in grib
format, which imports into GRASS very easily.

Regards,
Tom


On 1/15/11 6:54 PM, Mario Bellinato wrote:
> Dear R-sig-geo users,
>
> I was wondering whether there is a way of reading into R the IPCC
> climate scenario data (see
> <http://www.ipcc-data.org/sres/hadcm3_download.html>) and export them
> into a format that can be read by a GIS programme?
>
> thanks in advance,
>
> Marco
>
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-- 
Thomas E Adams
National Weather Service
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