[GRASS5] Import NOAA AVHRR .dat files

[Markus Neteler]

On Wed, May 04, 2005 at 05:08:50PM +0100, Ricardo Armas wrote:
> Hello.
> Im trying to import a .dat file with r.in.bin.
> 
> r.in.bin input=/home/neb_15.dat output=neb_exp bytes=1 north=44.80
> south=35.01 east=-1.14 west=-12.20 rows=89 cols=79 -b
> 
> However, I always get an error message like this:
> 
> Bytes do not match File size
> 
> File size 171262... Total Bytes 7031
> 
> Try bytes=24 or adjusting input parameters
>
> The file header looks like this
> 
> #LLMATRIX,
> NORTH      = 44.80,
> WEST       = 347.80,
> GRID       = 0.14/0.11,
> NLAT       = 89,
> NLON       = 79
> #DATA
> 
> Does anyone have a solution?
> 

Calculating: 
> 7031/(89 * 79)
[1] 1

suggests 1 byte. But the boundary box above doesn't seem to
match this:

g.region n=44.80 s=35.01 e=-1.14 w=-12.20 -p res=0:08
projection: 3 (Latitude-Longitude)
zone:       0
datum:      wgs84
ellipsoid:  a=6378137 es=0.00669438
north:      44:48N
south:      35:00:36N
west:       12:12W
east:       1:08:24W
nsres:      0:08:02.794521
ewres:      0:07:59.710843
rows:       73
cols:       83

I get close to 89x79 playing with 'res=' but don't get it
precisely. Are you sure about the n,s,e,w values?

Also: what's the projection of these data (I tried latLong/WGS84)?
Often it's Goode or something else.

Markus