Define a custom equal-area CRS centered on your study site

This function takes a Movebank data object and creates an equal-area projection centered on the Movebank deploy on locations. In the case of central-place foraging seabirds, this effectively equates to a CRS centered on the seabird colony. In cases where multiple deploy on locations are present within the data it centers of the projection on the mean latitude and longitude of all deployment locations. The function returns a proj4 string.

Usage

colCRS(data)

Arguments

data

Movebank data as returned by opp_download_data.

Examples

data(murres)
colCRS(murres)
#> [1] "+proj=laea +lat_0=62.9477 +lon_0=-82.0157"