Table4.2.4.4 https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_table4-2-4-4.shtml DIFPFLUX Proton Flux (Differential) (m2 s sr eV)-1 INTPFLUX Proton Flux (Integral) (m2 s sr)-1 DIFEFLUX Electron Flux (Differential) (m2 s sr eV)-1 INTEFLUX Electron Flux (Integral) (m2 s sr)-1 DIFIFLUX Heavy Ion Flux (Differential) (m2 s sr eV / nuc)-1 INTIFLUX Heavy Ion Flux (iIntegral) (m2 s sr)-1 NTRNFLUX Cosmic Ray Neutron Flux h-1