Anybody here doing meteorological or earth-sciences work? I am trying to work with GRIB2 format data files. There are libraries available, in particular the Unidata GRIB Java Decoder. And I can see exactly how to extract data in a big linear array, but what I want to do is access values by lat/long. Can't find any simple example on how to do that. Suggestions?
TIA!
You will need to get the projection type along with parameters, then use that to map the coordinates from lat/long to grid x/y (see f.e. the class CoordinateReferenceSystem from the geotools website).