1994 Distinguished Young Scientist Award by the North Central Weed Science Society and in 1996 served as chair of the weed science panel for the National Research Initiative. He received his Ph.D. from North Carolina State University.

Stephen W. Searcy is a professor of agricultural engineering at Texas A&M University, where he has taught since 1980. His research interests include the study of management and control systems for spatially variable crop production techniques and the application of digital electronics for sensing and control of agricultural processes. In 1985 Dr. Searcy served the United Nations' Food and Agricultural Organization as a consultant to Ludhiana Agricultural University. Dr. Searcy received his Ph.D. in agricultural engineering from Oklahoma State University.

Susan L. Ustin is an associate professor of resource science at the University of California-Davis, where she has taught since receiving her Ph.D. in botany. Her research interests include remote sensing of the environment as well as the use of EOS imaging spectrometers and synthetic aperture radar in ecological models. Dr. Ustin is a member of several professional associations, including the American Society of Photogrammetry and Remote Sensing, IEEE Geoscience and Remote Sensing, and the Ecological Society of America.

Stephen J. Ventura is an associate professor at the University of Wisconsin-Madison at the Institute for Environmental Studies and the Department of Soil Sciences, where he received his Ph.D. His research interests include environmental monitoring and modeling and land information systems. Dr. Ventura is also an active member of several professional organizations, including the Wisconsin Land Information Association, the Soil and Water Conservation Society, and the American Congress on Surveying and Mapping.

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