Calculate radius of Earth at given latitude and altitude

The Earth radius at sea level is 6371.001 km on average, but it will change with the latitude.

doCalcRadiusEarth(lat, masl = 0)

Arguments

lat	numeric. latitude in decimal degrees. It will be converted into radians in the calculus
masl	numeric. meters above sea level

Value

earth radius

Author

Mauricio Cantor