The American Geophysical Union has announced the winners of its medals and awards for 2003.

The William Bowie Medal, AGU’s most prestigious prize, goes this year to Donald L. Turcotte, professor of geology at the University of California, Davis. He was honored for his “outstanding contributions in many areas of geophysics and his unselfish cooperation,” according to the award citation.

Gerard C. Bond, Doherty Senior Scholar at the Lamont-Doherty Earth Observatory of Columbia University, received the Maurice Ewing Medal for his “fundamental contributions to the understanding of tectonophysics, climate, and sea-level changes.”

The John Adam Fleming medalist, Christopher T. Russell, was recognized for his “numerous original and significant contributions to a broad range of space sciences.” Russell is a professor of geophysics and space physics in the department of Earth and space sciences and the Institute of Geophysics and Planetary Physics at UCLA.

The Harry H. Hess Medal recipient is David L. Kohlstedt, professor of geology and geophysics at the University of Minnesota, Twin Cities. Kohlstedt was honored for his “fundamental contributions to understanding the Earth’s upper mantle rheology.”

Shlomo P. Neuman received the Robert E. Horton Medal for his “theoretical and applied concepts leading to major advances in conceptual understanding of groundwater flow and transport processes.” Neuman is the Regents’ Professor in the department of hydrology and water resources at the University of Arizona, Tucson.

Francis A. Dahlen Jr, chair of the geosciences department at Princeton University, is the recipient of the Inge Lehmann Medal for his “fundamental theoretical advances laying the foundations of modern global seismology.”

Kurt M. Cuffey, Guido Salvucci, and Lianxing Wen each earned a James B. Macelwane Medal, given to recognize significant contributions to the geophysical sciences by outstanding young scientists. Cuffey is a professor of geography at the University of California, Berkeley, Salvucci is a professor with joint appointments in the Earth sciences and geography departments at Boston University and Wen is an assistant professor of geophysics at SUNY, Stony Brook.

Jean Jouzel, director of the Institut Pierre-Simon Laplace in Paris, collected the Roger Revelle Medal for his “pioneering and fundamental work in the field of geochemistry as applied to glaciology and climatology.”

“His unselfish efforts to provide unclassified information to scientists in efforts to create new knowledge” garnered the Edward A. Flinn III Award for Robert H. Higgs, retired director of the geophysics department at the Naval Oceanographic Office in Stennis Space Center, Mississippi.

The Excellence in Geophysical Education Award was granted to Jacob Bear for his “outstanding support for both undergraduate and graduate education in hydrogeology through seminal textbooks” and for his “impact on many young professionals worldwide.” Bear is a professor emeritus in the department of civil and environmental engineering at the Technion-Israel Institute of Technology in Haifa, Israel.