School of Earth, Energy and Environmental Sciences
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Cyrus Fisher Tolman Professor in the School of Earth Sciences and Senior Fellow at the Woods Institute for the Environment
Current Research and Scholarly InterestsResearch
As a hydrogeologist, my research involves the study of water resources and water security with emphasis on groundwater. Using lab and field data, our aim is to develop an understanding of fundamental aspects of the transport of water and contaminants, and to investigate regional water resources systems. We have developed simulation-based planning tools to aid in sustainable agricultural and urban water management in the US, Mexico, India, and Jordan. With my colleagues, we have initiated the Global Freshwater Initiative, which studies water resources vulnerability problems throughout the world. During the past 14 years, our field investigations have focused on the interactions between groundwater and patterns of vegetation in studies of both meadow and salt-marsh ecohydrology. Scales of physical processes of interest extend from the domain of small pores to vast regional subsurface flow environments. Although driven by observations and data, we develop conceptual and quantitative models to rigorously understand physical processes, make predictions, and explore the impacts of new water management policies, such as taxes, quota, and markets. Such models enhance our understanding of groundwater flow behavior and provide the means to better manage water resources.
I teach courses for graduate and undergraduate students involving principles and methods used in physical and contaminant hydrogeology. In addition, I run a seminar series that exposes students to a variety of multidisciplinary topics involving hydrology.
2016 Fellow, American Association for the Advancement of Science (AAAS), 2014 Best Paper in Environmental Research Letters in 2014 (Padowski and Gorelick, (2014), 2013 Editor's Choice Award, Water Resources Research for paper Srinivasan et al., (2012), Member, US National Academy of Engineering (2012), International Fellow, Institute for Environmental Science and Research (ESR) (2011), New Zealand, Fulbright Senior Scholar (2008-09); Chester C. Keisel Memorial Lecturer, University of Arizona (2008); Best Paper Award in Computers and Geosciences, International Association for Mathematical Geology (2006); fellow, John Simon Guggenheim Memorial Foundation (2005); Stanford representative to the Consortium of Universities for Advancement of Hydrologic Sciences (2005-2008); M. King Hubbert Science Award, NGWA (2004); Ineson Distinguished Lecturer (1998); Fulbright Senior Scholar (1997); O.E. Meinzer Award, GSA (1994) James B. Macelwane medal, AGU (1990); Fellow, GSA (1988) and AGU (1990); Editorial Board, Optimization and Engineering Journal (1990-present); visiting professor, Ecole Polytechnique Federale de Lausanne (EPFL), Ecological Engineering Laboratory (2006); visiting professor, Swiss Federal Institute of Technology, jointly at the Swiss Federal Institute for Environmental Science and Technology (2005); visiting scholar, University of Cambridge, Zoology (2007); visiting scientist, CSIRO, Perth, Australia (2009); Member AGU Water and Society Technical Committee (2011-present) visiting professor, University of Western Australia Centre for Ecohydrology (2012); visiting professor, Swiss Federal Institute of Technology ETH Zurich (2013, 2019), Fulbright Distinguished Chair in Science, Technology and Innovation, Australian-American Program (2019-2020).