Hello everyone

I'm seeking to reduce the amount of data output to the northern hemisphere only.
I saw that with FullPos (https://confluence.ecmwf.int/download/attachments/55118972/fullpos_usersguide.pdf?version=1&modificationDate=1455131954373&api=v2&download=true) it is possible to force the output to display only a specified area. This is interesting and I would like to do it on the entirety of the Northern Hemisphere. Does anyone know a simpler solution than the one presented in this document exist or shall I follow the written instruction?
Thanks again for your time and help.

Best regards,

Clément Bouvier