Freymueller is an internationally recognized leader in the field of geodesy, and utilizes satellites from the Global Positioning System (GPS) to make highly precise measurements of movement on Earth’s surface. In his far-reaching research activities, he has made discoveries in a wide range of topics including plate tectonics and plate boundary zones, faults dynamics, the continuing rebound of the Earth’s surface from the melting of ice-age glaciers, inflation and deflation of volcanoes, and interpreting how changing water and ice levels deform the Earth. He is particularly well-cited for his work on using GPS to understand the crustal deformation in China, related to the formation of the Himalayas and the Tibetan Plateau.
In addition to his research, Freymueller is the Director of the EarthScope National Office. EarthScope is a long-term, large-scale, NSF-funded program to study the structure and evolution of North America and associated hazards through the deployment of thousands of geophysical instruments throughout the country.
Freymueller also has served the scientific community as the US National Correspondent to the International Association of Geodesy and its representative to the International Union of Geodesy and Geophysics, has served terms as an Associate Editor for the Journal of Geophysical Research and Journal of Geodesy, and is currently Editor in Chief of the International Association of Geodesy Symposia Series.