Caclulate the geodesic areas of
SpatialPolygons object on the Nothern
Hemisphere Polar Stereographic projection
boolean indicating whether areas should be calculated for each polygon or for the whole object together
Area calculations are for the Polar stereographic grid with major axis of 6378273m and ellipsoid flattening of 1/298.2794111.
Area (or vector of areas if
byid is set to
Information on Polar Stereographic North projection: https://nsidc.org/data/atlas/epsg_3411.html
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.