Calculate the distance between two locations — spherical

This function uses the haversine formula to calculate the great circle distance between two locations, identified by their latitudes and longitudes. It is borrowed from rnoaa (https://github.com/ropenscilabs/rnoaa/blob/master/R/meteo_distance.R) and included here as rnoaa is a large package that is rather unrelated to maxcovr. I have renamed it from meteo_spherical_distance to spherical_distance

Usage

spherical_distance(lat1, long1, lat2, long2)

Arguments

lat1: Latitude of the first location.
long1: Longitude of the first location.
lat2: Latitude of the second location.
long2: Longitude of the second location.

Value

A numeric value giving the distance in meters between the pair of locations.

Note

This function assumes an earth radius of 6,371 km.

Author

Alex Simmons a2.simmons@qut.edu.au, Brooke Anderson brooke.anderson@colostate.edu

Examples


spherical_distance(lat1 = -27.4667,
                   long1 = 153.0217,
                   lat2 = -27.4710,
                   long2 = 153.0234)
#> [1] 506.7013