I routinely download huge grib files from the dutch meteo office and convert these to much smaller files containing just the variables that are of interest to me.
This works fine for wind
, air temp and air pressure; the info is recognized by opencpn
grib plugin and displayed as expected.
However, I am having trouble to figure out what the requirements are in order for opencpn
to recognize information on e.g. wind
gusts and rainfall. The information is in the huge files, but I cannot get opencpn grib plugin to recognize these variables.
Can someone point out where I can find detailed information on the grb file requirements in order to have opencpn grib plugin recognize the info?
any help appreciated!
regards knoek van soest