John Matthew Wahr (June 22, 1951, Ann Arbor, Michigan – November 11, 2015, Boulder, Colorado)[1] was an American geophysicist and geodesist, known for his research on Earth's rotation, Earth tides, ocean tides, post-glacial rebound, and other topics in the geosciences.
[4] From 1983 to 2015 he held an appointment as a Fellow of the Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder.
For many years beginning in 1989, he held an appointment as Distinguished Visiting Scientist at the Jet Propulsion Laboratory in Pasadena.
[5] His Ph.D. thesis The Tidal Motions of a Rotating, Elliptical, Elastic and Oceanless Earth[6] was supervised by Martin L.
The American Geophysical Union (AGU) awarded him in 1985 the James B. Macelwane Medal, elected him in 1985 a Fellow of the AGU, in 1994 appointed him the William Bowie Lecturer,[5] and in 2006 awarded him the Charles A. Whitten Medal.