Updated omega and earth radius constants
Updated omega and earth radius constants

ahill818/MetPy,ahaberlie/MetPy,Unidata/MetPy,jrleeman/MetPy,dopplershift/MetPy,jrleeman/MetPy,dopplershift/MetPy,ahaberlie/MetPy,ShawnMurd/MetPy,deeplycloudy/MetPy,Unidata/MetPy