Hole Oceanographic Institution. She currently serves as a senior scientist in the Department of Geology and Geophysics at Woods Hole Oceanographic Institution. Dr. Humphris' research interests include the volcanic and tectonic controls on the distribution and characteristics of hydrothermal activity at mid-ocean ridges, the geochemistry of rock-water interactions, and the role of the associated hydrothermal fluxes in global geochemical mass balances.

Curt Mason, a senior coastal oceanographer with the NOAA National Centers for Coastal Ocean Science, earned his M.S. in physical oceanography from Texas A&M in 1971. His primary research areas are beach erosion, storm impacts, and tidal inlet processes. Other activities include coordinating and prioritizing budget initiatives for new efforts in natural disaster reduction for the National Weather Service, National Ocean Service, National Environmental Satellite Data and Information Service, and Office of Ocean and Atmospheric Research.

Neil Opdyke is a professor in the Department of Geology at the University of Florida. His primary areas of expertise include geology, paleomagnetism, and the evolution of the seafloor. Dr. Opdyke is a member of the National Academy of Sciences. He received his Ph.D in geology in 1958 from Durham University in England.

Nancy Rabalais obtained her Ph.D. in zoology from the University of Texas at Austin in 1983. She is a professor at the Louisiana Universities Marine Consortium (LUMCON). Dr. Rabalais' research interests include biological oceanography, specifically continental shelf ecosystems influenced by large rivers, as well as estuarine and benthic ecology, environmental effects of habitat alterations, and environmental physiology.

Noel Tyler received his Ph.D in geology from Colorado State University in 1981. He is the director of the Bureau of Economic Geology at the University of Texas at Austin. Dr. Tyler's research interests focus on sedimentary geology and oil and gas resource evaluation and recovery optimization in complex reservoir systems worldwide.


Dan Walker received his Ph.D. in geology from the University of Tennessee in 1990. He is currently a senior program officer with the Ocean Studies Board of the National Research Council. Dr. Walker's interests focus on the value of environmental information for policymaking.

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