How to Use the Equal Earth Map Projection in Different GIS and Mapping Software Applications

Caitlin Dempsey

Updated:

A lot of buzz has been generated by the recently released Equal Earth map projection.  This map projection was developed by Bojan Šavrič, Tom Patterson, and Bernhard Jenny with the aim of maintaining accurate area while limiting the extent of distortion to landmasses (unlike the Mercator projection).  The map projection has generated a lot of positive reception and many GIS and geospatial software applications are beginning to include it as part of the overall catalogue of available map projections.

It might be some months before the Equal Earth projection is available in QGIS (of which the most recent releases are using an earlier version of PROJ4) and ArcGIS.  Listed below are other mapping resources that have already incorporated Equal Earth.  If a resources is missing here, please email information about it to editor@gislounge.com.

D3

Mike Bostock has posted the source code for using Equal Earth in D3.

Flex Projector

This free custom map projection software includes parameters for the Equal Earth map projection (more: Create Custom Map Projections).


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Maptitude

Maptitude mapping software supports import and export of data in most projections and coordinate systems, including modern definitions such as Equal Earth, Natural Earth, Natural Earth II, and Patterson.

Equal Earth map projection with vector country boundaries © Caliper Corporation
Equal Earth map projection with vector country boundaries © Caliper Corporation

PROJ4

PROJ4 is an open source coordinate transformation software that can convert geospatial coordinates from one coordinate reference system (CRS) to another.   Version 5.2.0 of PROJ4 includes the Equal Earth projection which can be downloaded here.

R

You can incorporate Equal Earth with the open source statistical package R by following this documentation by Matt Strimas-Mackey: Using the new Equal Earth projection in R.

Equal Earth map projection with a natural earth shading. Map: Strebe, CC BY-SA 4.0
Equal Earth map projection with a natural earth shading. Map: Strebe, CC BY-SA 4.0

See Also

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About the author
Caitlin Dempsey
Caitlin Dempsey is the editor of Geography Realm and holds a master's degree in Geography from UCLA as well as a Master of Library and Information Science (MLIS) from SJSU.