Ecological Land Units Map of the World
= "the US Geological Survey (USGS) and Esri announced the publication of the most detailed global ecological land units map in the world".
"The Global ELUs map portrays a systematic division and classification of the biosphere using ecological and physiographic land surface features."
"The collaborative partnership between Esri and USGS resulted in a dynamic online map representing the world’s ecological diversity at unprecedented detail and authority. This work leveraged quantitative methods, geographic science, and big data produced by government agencies and the scientific community. To create this map the data were processed in Esri’s ArcGIS cloud computing environment. This map provides new knowledge and understanding of geographic patterns and relationships by distinguishing the geography of the planets’ ecosystems." (https://blogs.esri.com/esri/esri-insider/2014/12/09/the-first-detailed-ecological-land-unitsmap-in-the-world/)