[Gdal-dev] Modis HDF help

[Daniel Victoria]

Andrey,

You can get one of the MOD43B images in the link bellow. It's an 18 Mb file
http://juruti.cena.usp.br/~daniel/modis/modis43b3.tar.gz

It's comforting to know that I'm not the one messing up. The down side
is that I really wished I could do this with GDAL so then I could do a
batch import. Do you know of any other software that can do a batch
import with HDF4 data?

Thanks
Daniel


On 9/5/06, Andrey Kiselev <dron at ak4719.spb.edu> wrote:
> On Mon, Sep 04, 2006 at 11:08:20PM -0300, Daniel Victoria wrote:
> > I'm trying to import Modis BRDF Albedo (Mod43B) using gdal. The Modis
> > web page tells it's a 22 band image (2 quality, 10 albedo for diferent
> > bands and white/black body) and sure enough, issuing gdalinfo on the
> > file will give me 2 subdatasets:
> >
> > SUBDATASET_1_NAME=HDF4_EOS:EOS_GRID:"MOD43B3.A2003193.h21v10.004.2003226054122.hdf":MOD_Grid_BRDF:Albedo
> >  SUBDATASET_1_DESC=[1200x1200x10x2] Albedo (16-bit integer)
> > SUBDATASET_2_NAME=HDF4_EOS:EOS_GRID:"MOD43B3.A2003193.h21v10.004.2003226054122.hdf":MOD_Grid_BRDF:Albedo_Quality
> >  SUBDATASET_2_DESC=[1200x1200x2] Albedo_Quality (32-bit unsigned integer)
> >
> > Where subdataset 1 has 10x2 bands of 1200 x 1200. But then, when I
> > issue gdalinfo on the first subdataset:
> >
> > gdalinfo
> > HDF4_EOS:EOS_GRID:"MOD43B3.A2003193.h21v10.004.2003226054122.hdf":MOD_Grid_BRDF:Albedo
> >
> > I get 1200 bands of 1200x1 instead of 20 bands of 1200x1200? So, what
> > am I doing wrong? Modis reprojection tool will list the 22 bands but
> > then I don't know how to use MRT in bash mode to import 60 images in
> > one swift stroke.
>
>
> Daniel,
>
> There is nothing wrong in your actions, but the HDF4 driver does not
> proprly work with 4D datasets. Could you make available for download one
> of those datasets?
>
> Regards,
> Andrey
>
> --
> Andrey V. Kiselev
> ICQ# 26871517
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