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John Wesley Powell Center for Analysis and Synthesis

Science Advisory Board

SAB Member Martin Goldhaber

Dr. Martin Goldhaber

Senior Scientist
Powell Center Director
U.S. Geological Survey

Marty Goldhaber is geochemist and currently a Senior Scientist at the USGS where he received the Department of the Interior Meritorious Service and Presidential Rank Awards. He has served a rotation as the Chief Scientist for Geology and has also served as co-chair of the USGS Science Strategy Team which was charged with defining key strategic directions for the USGS. His current research is on the evolution of the broad ‘geochemical landscapes’ resulting from the interplay of geologic, geomorphologic, hydrologic, and biologic processes. Geochemical landscape studies are underway in the Sacramento Valley of California, and the Prairie Pothole region of the north central U.S. and southern Canada. 

SAB Member Jill Baron

Dr. Jill Baron

Ecosystem Ecologist
Powell Center Director
U.S. Geological Survey

Dr. Jill Baron is an ecosystem ecologist with the U.S. Geological Survey, and a Senior Research Ecologist with the Natural Resource Ecology Laboratory at Colorado State University. Her interests include applying ecosystem concepts to management of human-dominated regions, and understanding the biogeochemical and ecological effects of climate change and atmospheric nitrogen deposition to mountain ecosystems. She is co-director of the John Wesley Powell Center for Earth System Science Analysis and Synthesis.

SAB Member Nina Burkardt

Dr. Nina Burkardt

Research Social Scientist
U.S. Geological Survey

Dr. Nina Burkardt is a Research Social Scientist at the USGS Fort Collins Science Center. Her research focuses on negotiation and conflict resolution in natural resource decision making, institutional analysis of natural resource management processes and policies, and the use of science in decision making.

SAB Member Darius Semmens

Dr. Darius Semmens

Research Physical Scientist
U.S. Geological Survey Geosciences and Environmental Change Science Center

Dr. Darius Semmens is a research physical scientist at the USGS Geosciences and Environmental Change Science Center in Denver. His research focuses on modeling the spatial dynamics of ecosystem service production and flows to beneficiaries, as well as how this type of information can inform resource management. He has projects focused on mapping social value for cultural ecosystem services, quantifying the spatial ecological/economic subsidies of migratory species, and developing an integrated resource assessment framework.

Powell Center SAB member Tom Torgersen

Dr. Tom Torgersen

Program Officer
National Science Foundation

Dr. Tom Torgersen is a Program Officer at the National Science Foundation with responsibilities for Hydrologic Sciences and "Water Sustainability and Climate". His research expertise includes isotopic tracers and dating of groundwater, hydrogeology, coastal ocean processes, limnology, and paleoclimate.
Powell Center SAB member Victor Labson

Dr. Victor Labson

U.S. Geological Survey Office of International Programs

Dr. Victor Labson’s career with the U.S. Geological Survey has been focused on the application of ground and airborne geophysical methods to quantitative imaging of the Earth with applications including deep crustal mapping, mineral resource appraisals, geologic hazards, environmental contamination, national security issues, and water supply development and quality. His most recent scientific focus has been on the understanding of the relationship of the chemical and physical properties of the Earth to resultant geophysical phenomena.
Powell Center SAB member Lisa Clough

Dr. Lisa Clough

Head of the Ocean Section at the U.S. National Science Foundation

Dr. Lisa Clough is an oceanographer, with much of her research focused in coastal and polar regions, and she particularly enjoys working on topics that require interdisciplinary approaches. Lisa spent 20 years at East Carolina University, achieving the rank of Full Professor of Biology, and has held positions in both Antarctic and Ocean Science at NSF.
Powell Center SAB member Dr. Steven Perakis

Dr. Steve Perakis

Research Ecologist
U.S. Geological Survey

Dr. Steve Perakis is a research ecologist with the USGS Forest and Rangeland Ecosystem Science Center, and courtesy faculty at Oregon State University. He is interested broadly in the ecological biogeochemistry of forests, grasslands, riparian and watershed ecosystems. Specific studies examine how disturbance, land-use, climate change, atmospheric deposition, plant communities, and soil development influence cycles of carbon, nitrogen and other essential elements that sustain ecosystems and society.
Powell Center SAB member Mary Jo Baedecker

Dr. Mary Jo Baedecker

Scientist Emeritus
U.S. Geological Survey

Mary Jo Baedecker is a scientist emeritus at the U.S. Geological Survey who works in the field of organic geochemistry and groundwater hydrology. She worked for 30 years in research and research management in the National Research Program before returning as a scientist emeritus.
Powell Center SAB member Craig Allen

Dr. Craig Allen

U.S. Geological Survey

Dr. Craig Allen is an ecologist with the U.S. Geological Survey, and is Leader of the U.S. Geological Survey Nebraska Cooperative Fish and Wildlife Research Unit, and Professor in the School of Natural Resources, University of Nebraska – Lincoln. His research interests revolve around global change, biological invasions, and resilience.
Powell Center SAB member Patty Toccalino

Dr. Patty Toccalino

U.S. Geological Survey

Dr. Patty Toccalino’s expertise lies at the interfaces between environmental chemistry, toxicology, risk assessment, and contaminant fate and transport. Her interests include the occurrence and potential human-health significance of contaminants in drinking-water resources, including chemical mixtures and emerging contaminants. She was faculty at the Oregon Health & Science University before joining USGS. Patty is the Deputy Program Coordinator for the National Water Quality Program.

Previous Advisory Board Members

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