1

I have this file which contains:

gdalinfo product.hdf
Coordinate System is `'
Metadata:
calendar=standard
center=gsfc
Subdatasets:  
Corner Coordinates:
Upper Left  (    0.0,    0.0)
Lower Left  (    0.0,  512.0)
Upper Right (  512.0,    0.0)
Lower Right (  512.0,  512.0)
Center      (  256.0,  256.0)

as you can see, there are 24 bands What I need is just to extract the first band of the sub-dataset.

0

You can solve your problem by combining gdalwarp and gdal_translate:

gdalwarp -geoloc -t_srs epsg:3410 -tr 25000 25000 HDF4_SDS:UNKOWN:"product1.hdf":5 warped.tif
gdal_translate -b 1 warped.tif band1.tif

If you want all 24 bands separately, you can write a batch file with this content (on Linux it might be different):

FOR /L %%G IN (1,1,24) DO gdal_translate -b %%G warped.tif %%G.tif

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