Am 09.05.2015 um 02:38 schrieb Noli Sicad:
http://www.nsof.class.noaa.gov/saa/products/search?datatype_family=VIIRS
Is this raster data?
I think you have georeferenced it.
http://www.digital-geography.com/qgis-tutorial-i-how-to-georeference-a-map/#.VU1W52a23FQ
It is not that easy. The data is raw data from a satellite flight. The
HDF contains several subdatasets, including longitude and latitudes of
every cell. Unfortunately, the cell coordinates are not equally spaced,
and there is no CRS given.
The best result I get is transforming the longitude, latitude and
aerosol subdatasets with gdal_transform to XYZ format, then stitch them
together with LibreOffice Calc, and import them as delimited text.
It is possible to extract single bands with gdalwarp. This seems to
work, but the GCP information inside the file is wrong. Longitudes are
added by 180°, and the last line of GCP matches 0/0 to 0/0, which makes
no sense to me.
Reading the data with python code inside a plugin might be an alternative.
Greetings,
André Joost
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