long2UTM
was deprecated in favor of convert_long_to_utm()
to enforce a
consistent function naming pattern across the package and to conform to the
tidyverse style guide.
long2UTM()
take a longitude coordinate and returns the corresponding UTM
zone.
long2UTM(lon)
The function returns a numeric UTM zone (between 1 and 60).
Input a longitude (decimal degree) coordinate and this simple function returns the number of the UTM zone where that point falls.