Spherical trigonometry for geographic applications. That is, compute distances and related measures for angular (longitude/latitude) locations.
copied from cf-staging / r-geosphereconda install conda-forge::r-geosphere
conda install conda-forge/label/cf201901::r-geosphere
conda install conda-forge/label/cf202003::r-geosphere
conda install conda-forge/label/gcc7::r-geosphere