Global Administrative Areas

GADM was developed to support various activities, including georeferencing of textual locality descriptions (the BioGeomancer project) and for mapping census type data. The development is led by Robert Hijmans, in collaboration with Nell Garcia and John Wieczorek. Major contributions have also been made by Arnel Rala, and Aileen Maunahan at the International Rice Research Institute and by Julian Kapoor at the Univeristy of California, Berkeley, Museum of Vertebrate Zoology.

The development of GADM was partly supported by the Gordon and Betty Moore foundation for the BioGeomancer project.

Acknowledgements
We thank many individuals and organizations for sharing data (also see the Documentation page), in particular the International Center for Tropical Agriculture (CIAT, Andy Jarvis), ICRISAT and ILRI. Andy Nelson provided much of the country codes and membership information in the "att_0" table.