sor in the Department of Hydrology and Water Resources at the University of Arizona. Her research interests include biogeochemistry, metal cycling, surface-water and shallow groundwater interactions, organic chemical distribution in soil and groundwater, and chemical processes in snow. She received her B.A. in physics from Mount Holyoke College and her M.S. and Ph.D. in environmental engineering science from the California Institute of Technology.


Clifford S. Crawford is a professor emeritus of biology at the University of New Mexico (UNM). He received a B.A. in biology from Whitman College, and M.S. and Ph.D. degrees in entomology from Washington State College. After three years on the biology faculty at Portland State College, he spent the rest of his career at UNM. Until the mid-1980s his research dealt mainly with the biology of terrestrial arthropods in arid and semiarid ecosystems. Since then, he has focused on the riparian ecology of those regions, with emphasis on the functioning and management of the Rio Grande river forest (bosque). He led an interagency team that wrote the “Middle Rio Grande Ecosystem: Bosque Biological Management Plan” in 1993. He is now the director of the Bosque Ecosystem Monitoring Program, which involves the public in tracking long-term environmental change along the middle Rio Grande.


Gerald E. Galloway is a research professor and professor of engineering at the Glen L. Martin Institute, University of Maryland, College Park. Before joining the University of Maryland, he was vice president of the Enterprise Engineering Group at the Titan Corporation in Arlington, Virginia. Dr. Galloway is a former secretary of the U.S. Section of the International Joint Commission. Dr. Galloway has served as a consultant on water resources engineering and management issues to the Executive Office of the President, the World Bank, the Organization of American States, the Tennessee Valley Authority, and the U.S. Army Corps of Engineers. Dr. Galloway is a former dean of the Academic Board (chief academic officer) of the U.S. Military Academy. Dr. Galloway holds M.S. degrees from Princeton, Penn State, and the U.S. Army Command and General Staff College. Dr. Galloway received his Ph.D. degree in geography from the University of North Carolina.


Marcelo H. Garcia is the Chester and Helen Siess Professor and director of the Ven Te Chow Hydrosystems Laboratory at the Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign. He is a leader in the field of river mechanics, sediment transport, sedimentation engineering, and environmental hydraulics. He is best known for his research in sediment entrainment from riverbeds, flow and transport in vegetated channels, the mechanics of oceanic turbidity currents, and the dynamics of mudflows in mountain areas. He is author of the book Hydrodinamica Ambiental (Environmental Hydrodynamics) and has served as editor of the Journal of Hydraulic



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