[GRASS-user] Best format for exporting raster data

[Rainer M Krug]

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Hi

I am creating a huge amount of raster layers during my simulations, and
I would like to archive then to enable further analysis. At the moment I
am leaving them in the grass database and compress the whole mapset into
a tar.gz file. But this is rather cumbersome, if I want to extract some
selected layers and analyse them further (my analysis is done in R).
Therefore I would like to export the created layers while the simulation
is running and to delete them from the grass database.
My question: what is the best format for this?
It should :
- - contain all the information contained in the raster layer in the grass
mapset
- - be readable by at least gdal
- - be preferably compressed (but I can compress them after export)

At the moment I am using for a similar purpose the esri asc grid, but I
am somehow critical about the fact that it uses a text representation of
my data with limited decimals, therefore probably loosing information
compared with the grass file.

Are Binary fiels a better option (in the manual it states "Exports", not
"converts" as in the esri ascii grid) and can I read them from R or gdal?

Any ideas welcome,

Rainer


- -- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
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