NCEP.Groundspeed function

Calculate flow-assistance according to equation 'Groundspeed'

RNCEP package Read PDF manual

Maintainer: Michael U. Kemp
License: GPL (>= 2)
Last published: 2020-05-27
https://www.esrl.noaa.gov/psd/data/gridded/reanalysis/ https://sites.google.com/site/michaelukemp/home