[GRASSLIST:5214] netCDF to raster

Hi all,
I am a newbie at GISs and GRASS.
I am using GRASS 5.0.0 and need to convert a netCDF
format dataset to the raster format in GRASS.I suppose
one needs to gmake r.stage3 which doesnt come with
GRASS 5.0.0
How do i go about this process ? Do i need to download
some additional files ?
And how can i convert the raster form back to netCDF ?
any pointers ?

Regards,
Vidya Kotamraju

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Hello Vidya,

I know two ways to import netCDF files into GRASS.
1) You install R and you use R inside GRASS. R is able to read netCDF files, so you can export your variable in GRASS. I used this method six months ago and it worked fine.

2) An other option
You convert your netCDF file to an ascii file readable with the r.in.ascii command.
I prefer this option because it is less system resources consuming.
I made a shell script to convert netCDF file into GRASS raster ascii file but I use netCDF tools developed by my company and there are not publically available. However, if you are interested in, I can send it to you and I believe that it is easily portable with the nco tools (http://nco.sourceforge.net, have a look at ncks)

HTH
Paul

At 01:14 11/12/2002 -0800, vidya kotamraju wrote:

Hi all,
I am a newbie at GISs and GRASS.
I am using GRASS 5.0.0 and need to convert a netCDF
format dataset to the raster format in GRASS.I suppose
one needs to gmake r.stage3 which doesnt come with
GRASS 5.0.0
How do i go about this process ? Do i need to download
some additional files ?
And how can i convert the raster form back to netCDF ?
any pointers ?

Regards,
Vidya Kotamraju

__________________________________________________
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