Electric and Magnetic Fieldshttps://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_table4-2-4-3.shtmlBTOTMagnetic Field MagnitudeTBVEC11st Vector Component of Magnetic FieldTBVEC22nd Vector Component of Magnetic FieldTBVEC33rd Vector Component of Magnetic FieldTETOTElectric Field MagnitudeV m-1EVEC11st Vector Component of Electric FieldV m-1EVEC22nd Vector Component of Electric FieldV m-1EVEC33rd Vector Component of Electric FieldV m-1