You are right, I notice that there isn't any difference from the band_1.tiff and band_1_warp.tiff
--Nikos Hatzopoulos On Mon, Jan 17, 2011 at 8:15 AM, anna auge <[email protected]> wrote: > Hi all, > > I am trying to convert modis level 1B data (type SWATH) to geotiff > following these steps. > > 1) Examining the HDF > gdalinfo d:\modis\1b\MOD021KM.A2011008.0850.005.2011008195744.hdf > gdalinfo > HDF4_EOS:EOS_SWATH:"d:\modis\1b\MOD021KM.A2011008.0850.005.2011008195744.hdf":MODIS_SWATH_Type_L1B:EV_1KM_RefSB > 2) Extracting the 1. band of the subdataset > MODIS_SWATH_Type_L1B:EV_1KM_RefSB > gdal_translate -of GTiff -b 1 > HDF4_EOS:EOS_SWATH:"d:\modis\1b\MOD021KM.A2011008.0850.005.2011008195744.hdf":MODIS_SWATH_Type_L1B:EV_1KM_RefSB > d:\modis\1b\band_1.tiff > 4) Warping the image to WGS84 > gdalwarp -t_srs EPSG:4326 d:\modis\1b\band_1.tiff > d:\modis\1b\band_1_warp.tiff > > The example dataset, which i am using, can be downloaded here > > ftp://ladsftp.nascom.nasa.gov/allData/5/MOD021KM/2011/008//MOD021KM.A2011008.0850.005.2011008195744.hdf > > And now to my problem: I get always an certain shift ( > http://www.flickr.com/photos/54033867@N00/5363471425/in/photostream/), > which is avoided if i am using the "Georeference MODIS" option in ENVI ( > http://www.flickr.com/photos/54033867@N00/5364083966/in/photostream/). > I also tried a few workarounds, f.g. > http://thread.gmane.org/gmane.comp.gis.gdal.devel/10482, but nothing > worked properly. > As far as I understand gdal supports Modis L1B SWATH, so what I am doing > wrong? Any help is appreciated. > > Regards Anna > > P.S. I am using FWTools 2.4.7 on Windows > > > WEB.DE DSL Doppel-Flat ab 19,99 €/mtl.! Jetzt mit > gratis Handy-Flat! > *http://produkte.web.de/go/DSL_Doppel_Flatrate/2*<http://produkte.web.de/go/DSL_Doppel_Flatrate/2> > > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev >
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