Community Advisory Committee for Water Prediction Membership


Matt Ables

Chief Executive Officer for the North American subsidiary


Matt.Ables at

Matt Ables is the Chief Executive Officer for the North American subsidiary of KISTERS.  Founded in 1965, KISTERS has been creating hydrological, meteorological, and environmental data management software since 1985.  Mr. Ables began his career in 2000 as a Hydrologist with the Lower Colorado River Authority in Austin, Texas where he helped maintain stream gauges and was responsible for the KISTERS hydrological database and software.   In 2008 he joined KISTERS in Sacramento, CA as Project Manager and Hydrologist. He was responsible for designing and implementing hydrological data management systems across the U.S. and Canada. Now as CEO, he manages day-to-day operations and oversees larger projects including several state and provincial agencies, hydropower operations, municipalities and water districts. Mr. Ables has 18 years of experience in hydrological data management, a Bachelor of Science in Geology from Baylor University and a Master of Science in Geography from Texas State University. He is a registered Professional Geoscientist in the State of Texas.


Jerad Bales

Executive Director of the Consortium of Universities for the Advancement of Hydrologic Science, Inc.


jdbales at

Founded in 2001, CUAHSI is a 501(c)3 research organization representing more than 130 U.S. universities and international water science organizations. CUAHSI develops infrastructure and services for the advancement of water science in the United States.  In 2017, Dr. Bales was named to EPA’s Board of Scientific Counselors for EPA’s Safe and Sustainable Water Resources program.  Prior to his position with CUAHSI, Dr. Bales was the U.S. Geological Survey’s Chief Scientist for Water.  In this position, he was the Senior Executive re­sponsible for $100M of activities related to the planning and devel­opment of national hydrologic research and technology transfer. Dr. Bales has conducted research on water-resources, hazards, and water-quality issues throughout the U.S. and internationally, and has published more than 120 articles and technical reports on this work.  Dr. Bales has served on many interagency committees, including serving as Co-Chair of OSTP’s Subcommittee on Water Availability and Quality and as Chair of the U.S. National Committee for the UNESCO International Hydrological Programme.


Ana P. Barros

Professor of Civil and Environmental Engineering

Duke University, Pratt School of Engineering

barros at

Dr. Ana P. Barros is the James L. Meriam Professor of Civil and Environmental Engineering In the Pratt School of Engineering at Duke University, and a Professor of Earth and Ocean Sciences faculty of the Nicholas School of the Environment.  Dr. Barros research is on multiscale water cycle processes with a special focus on hydrometeorology and hydrology of mountainous regions.  Her research approach relies strongly on observational process studies using remote sensing and ground based observations, coupled modeling across the atmosphere and terrestrial continuum, and integration of models and observations.   D. Barros has served and continues to serve in numerous committees and boards of various federal agencies, the NRC and various professional and scientific societies.  Dr. Barros is a Fellow of the AAAS, AGU, AMS and ASCE.


Donald Cline

Associate Director for Water Resources

U.S. Geological Survey

dcline at

Dr. Don Cline is the U.S. Geological Survey’s Associate Director for Water Resources. Don leads the USGS’ research, monitoring, assessment, modeling, and prediction of the nation’s water resources. The USGS Water Resources Mission Area (WMA) provides society with the information it needs on water quantity and quality across the Nation. Don oversees the WMA’s efforts to advance understanding of the controls over water availability; to better predict changes in water quantity and quality in response to natural and human-induced changes; to anticipate and respond to water-related emergencies and conflicts; and to deliver timely water data, analyses, and decision-support tools seamlessly across the Nation to support water-resource decisions.

Don joined USGS in 2016 following a 19-year career with the National Oceanic and Atmospheric Administration’s National Weather Service, where he served as the Director of the National Water Center, the Chief of the Hydrology Laboratory, and the Director of the National Operational Hydrologic Remote Sensing Center. Don has been in the Senior Executive Service since 2010.

Don has over 20 years of research, development and operational implementation experience in applied and basic hydrologic and cryospheric science, large-scale field experiments, integrated environmental modeling, development and application of airborne and spaceborne observing systems, and applications of geographic information systems.  

Don holds a Ph.D., M.S. and B.S. from the Department of Geography at the University of Colorado, Boulder.


Clint Dawson

Professor in Department of Aerospace Engineering and Engineering Mechanics

University of Texas

clint at

Clint Dawson is the John J. McKetta Centennial Energy Chair in Engineering and Professor in the Department of Aerospace Engineering and Engineering Mechanics, and a member of the Institute for Computational Engineering and Sciences.    He received Bachelor of Arts and Master of Science degrees in mathematics from Texas Tech University in 1982 and 1984, respectively.  He received his Ph.D. from Rice University in 1988 in mathematical sciences.  From 1988-90 he was a National Science Foundation Postdoctoral Fellow and Dickson Instructor in the Department of Mathematics at the University of Chicago.   In 1990 he returned to Rice as an assistant professor in the Department of Computational and Applied Mathematics.  He was promoted to associate professor in 1994 and moved to the University of Texas in 1995.  He was promoted to full professor in 2000.  He was named the Edward S. Hyman Endowed Chair in Engineering in 2011 and received the John J. McKetta Centennial Energy Chair in Engineering in 2014. 

Dr. Dawson has authored or co-authored over 190 technical articles in the areas of numerical analysis, numerical methods and parallel computing, with applications to flow and transport in porous media, and shallow water systems.    In 2001, he was elected Chair of the Society for Industrial and Applied Mathematics Activity Group on Geosciences, and has served on numerous conference organizing committees and review panels.  He has served on numerous editorial boards, and is currently managing editor of Computational Geosciences.  In 2011, he was given the Institute for Computational Engineering and Sciences Distinguished Research Excellence Award.  He received the Society for Industrial and Applied Mathematics Geosciences Career Prize in 2013.   He was named a SIAM Fellow in 2016.   


Matthew Farthing

Research Hydraulic Engineer

Coastal & Hydraulics Laboratory

Matthew.W.Farthing at

Dr. Farthing began work at the Coastal and Hydraulics Laboratory in 2007. Prior to that he served as a research assistant professor in the Environmental Sciences and Engineering department at the University of North Carolina. His research interests include computational modeling of multiphase flow and transport phenomena and scientific computing in python and C++. Most of his current work focuses on hydrodynamic modeling in data-sparse regions. In particular, his current research and development efforts include finite element methods for multiphase flow and transport, reduced order modeling for free-surface hydrodynamics, and bathymetry estimation in riverine and littoral environments.


Richard Hooper

Research Professor

Tufts University, Dept. of Civil and Environmental Engineering, Water Resources Group

Richard.Hooper at

Dr. Richard P. Hooper is currently a Research Professor at Tufts University in the Water Resources group of the Department of Civil and Environmental Engineering. He was the founding Executive Director of CUAHSI which he lead from 2003 to 2017. While at CUAHSI, he oversaw the creation of the CUAHSI Hydrologic Information System and the founding of the Water Data Center, the first NSF-supported community facility for hydrology. Dr. Hooper worked with the Office of Hydrologic Prediction to develop and to execute the National Water Center’s Innovators Program Summer Institute. Dr. Hooper is active in catchment research, having been elected ChaIr of upcoming Gordon Research Conference on Catchment Science and chairing the External Advisory Board for the Helmholtz Center’s Terrestrial Environmental Observatory Network.


Steve Kopp

Senior Product Engineer

Esri Inc.

skopp at

Steve Kopp is a Senior Product Engineer at Esri Inc, an international geographic information system (GIS) software and services company. For more than 25 years Mr. Kopp has been part of the Software Products division at Esri, engaged in design, development, and management of GIS software. His primary focus is spatial analytic tools and spatial modeling applications, with a focus on Earth science applications, especially water resources.  This work has led to long term collaborations with Federal agencies, academia, and partner companies, toward  developing specialized software for hydrologic analysis. He is currently co-chair of the Technology Committee for the American Water Resources Association.


David Lesmes

Program Manager

Department of Energy’s Office of Biological and Environmental Research, Subsurface Biogeochemical Research (SBR) Program

David.Lesmes at

David Lesmes manages the Subsurface Biogeochemical Research (SBR) program in the Climate and Environmental Sciences Division in the Department of Energy’s Office of Biological and Environmental Research. The overarching objective of the SBR program is to advance a robust, predictive understanding of how watersheds function as integrated hydro-biogeochemical systems and how these systems respond to perturbations as needed to address U.S. energy and environmental challenges. David’s technical area of expertise is hydrogeophysics and before coming to the DOE he worked as an Assistant Professor at Boston College and as a Postdoctoral Fellow at the Massachusetts Institute of Technology. He received his PhD in Geophysics from Texas A&M University and a B.A. in Physics from the University of California at San Diego. David has served on many interagency committees including the OSTP Subcommittee on Water Quality and Availability (SWAQ), the U.S. Group on Earth Observations (USGEO), and the U.S. Global Change Research Program (USGCRP) Integrated Water Cycle Working Group.

Herbert Longenecker, III

Senior Physical Scientist

FEMA Headquarters Planning & Exercise Division, Response Geospatial Office

Herbert.Longenecker at

H. E. “Gene” Longenecker, III is a Senior Physical Scientist and modeling lead for the Response Geospatial Office in the FEMA Headquarters Planning & Exercise Division. Gene is a team lead and coordinator for FEMA’s Modeling Task Force (MOTF) and Storm Surge/Data Manager for the Hurricane Liaison Team (HLT); he previously served as FEMA Region IV’s Earthquake/Hazus Program Manager and Regional Geospatial Coordinator. He is responsible for interagency modeling and data coordination, perishable data collection missions driving disaster impact analytics, and development of multi-hazard risk and vulnerability assessment methodologies for federal and state emergency response planning and program activities. He serves as a lead subject matter expert in risk, vulnerability, loss estimation, GIS, and remote sensing on behalf of FEMA during federal disaster response operations.

Gene has bachelor’s degrees in Geography and Philosophy (B.S) and a Master of Arts degree in Geography (M.A.). He is also affiliated with the University of Colorado at Boulder’s Geography Department and Center for Science & Technology Policy Research, where he studies flood risk, economic development, and sustainability while finishing his doctoral degree in Geography (Ph.D., expected 2018). He has organized and conducted numerous domestic and international training, technical, and conference workshop sessions on behalf of FEMA, emphasizing the applications of GIS, modeling, data analyses, techniques development, and general geographic and scientific principles supporting disaster management.


David R. Maidment

Department Chair, Civil Engineering

University of Texas at Austin

maidment at

David R. Maidment is the Hussein M. Alharthy. Centennial Chair in Civil Engineering at the University of Texas at Austin, where he has been on the faculty since 1981. He participated in the first scientific meeting held at the National Water Center in May 2014.  Following that meeting, he proposed what has become an annual Summer Institute for the National Water Center Innovators Program organized by CUAHSI, in which 105 graduate students from 49 universities have conducted research projects to enhance the National Water Model.


Kyle Mandli

Assistant Professor

Columbia Data Science Institute, Department of Applied Physics and Applied Mathematics


Dr. Kyle Mandli is Assistant Professor of Applied Mathematics in the Department of Applied Physics and Applied Mathematics and affiliated with the Columbia Data Science Institute.  Before Columbia he was at the University of Texas at Austin where he was a Research Associate at the Institute for Computational and Engineering Sciences working in the computational hydraulics group. He received his Ph.D. in Applied Mathematics in 2011 from the University of Washington studying multi-layered flow as it applies to storm-surge simulation. His research interests involve the computational and analytical aspects of geophysical shallow mass flows such as storm-surge, tsunamis, and other coastal flooding. This also includes the development of advanced computational approaches, such as adaptive mesh refinement, leveraging novel computational technologies, such as accelerators, and the application of good software development practices as applied more generally to scientific and engineering software. 


Ehab Meselhe

Vice President for Engineering

The Water Institute of the Gulf

emeselhe at

Ehab Meselhe, Ph.D., P.E., is the vice president for engineering at the Water Institute of the Gulf, and a Professor at the River-Coast Science and Engineering, Tulane University.  He has more than 20 years of experience researching wetland hydrology, sediment transport, and computer modeling of inland watersheds, coastal wetland, estuarine, and riverine systems. Dr. Meselhe served as Louisiana’s technical lead for the Mississippi River Hydrodynamic and Delta Management Study and helped build the numerical models that provided a foundation for Louisiana’s 2017 Coastal Master Plan. He also served as an Associate Editor of the Journal of Hydrology (Elsevier), and the Journal of Hydraulic Research (International Association of Hydraulic Research).


Glenn Moglen

Research Hydrologist

Agricultural Research Service

Glenn.Moglen at

Glenn Moglen is a research hydrologist at the Agricultural Research Service in Beltsville, Maryland where his is the head of the Hydrology and Remote Sensing Laboratory. He is formerly a professor of Civil and Environmental Engineering at both the University of Maryland and Virginia Tech. Dr. Moglen earned his BS from the University of Maryland, his MS from Colorado State University, and his PhD from the Massachusetts Institute of Technology. He is also a registered professional engineer. Dr. Moglen’s research focuses on the hydrologic modeling of land use and climate change. He is an officer and active member of several technical committee with the Environmental and Water Resources Institute (EWRI) of the American Society of Civil Engineers (ASCE). Dr. Moglen is the author of a recent textbook on open channel flow.


Joseph Nimmich

Maritime Awareness Subject Matter Expert

Booz Allen Hamilton

Nimmich_j-asst at

Joseph L. Nimmich joined Booz Allen Hamilton as a Senior Executive Advisor in April 2017.  Prior to this, he served as Deputy Administrator of the Federal Emergency Management Agency (FEMA) (2014-17) where he focused on strengthening and institutionalizing the Agency's business architecture to achieve the FEMA mission, including actively modernizing information technology systems, instituting data analytics to enable evidence-based decision making, enhancing communication, and building a broader and more diverse workforce.  Nimmich further played an instrumental role in establishing and facilitating several Agency governance structures to provide FEMA's program offices with a practical and collaborative approach to identify inefficiencies and gaps in decision making, the ability to make decisions strategically and transparently, and in a manner that benefited the organization as a whole.  Between 2013-14 Nimmich was the Associate Administrator for the Office of Response and Recovery, responsible for directing the Response, Recovery, and Logistics Directorates, as well as the Office of Federal Disaster Coordination.  He coordinated and synchronized all of FEMA Headquarters' operational response activities during major disasters and/or emergency activations.

He served in the U.S. Coast Guard for more than 33 years, retiring as a Rear Admiral in 2010.  His assignments included the First Coast Guard District, based in Boston, Massachusetts, where he was responsible for all Coast Guard operations across eight states in the northeast and 2,000 miles of coastline from the U.S.-Canadian border to northern New Jersey.  Nimmich earned an MBA from the Stern School of Business at New York University, and holds a master's degree in Strategic Studies from the U.S. Army War College.  He received his B.S. History and Government from the U.S. Coast Guard Academy.


David Tarboton


Utah State University, Civil and Environmental Engineering, Utah Water Research Laboratory

dtarb at

David Tarboton is a professor of Civil and Environmental Engineering, Utah Water Research Laboratory, Utah State University.  His research focuses on advancing the capability for hydrologic prediction by developing models that take advantage of new information and process understanding enabled by new technology.  He is principal investigator for the National Science Foundation project for the development of HydroShare, a collaborative environment for sharing hydrologic data and models operated by the Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI).  He has developed a number of models and software packages including the TauDEM hydrologic terrain analysis and channel network extraction package and Utah Energy Balance snowmelt model.  He has been on the faculty at USU for 28 years where he teaches Hydrology and Geographic Information Systems in Water Resources. 


Thomas Torgersen

Program Officer, Hydrologic Sciences


ttorgers at

Thomas Torgersen has served as the lead Program Officer for the NSF program in Hydrologic Sciences since 2010.  In that capacity, he directs a competitive external research program across the spectrum of current questions across the Hydrologic Sciences and its sister sciences.  From 2010 to 2014, Dr. Torgersen Chaired the NSF program in “Water Sustainability and Climate” that investigated the complexity of water systems with a program investment of approximately $75M. This effort involved three directorates and USDA/NIFA. Since 2015, Dr. Torgersen has been co-chair of the NSF cross-Directorate initiative in “Innovation at the Nexus of Food, Energy and Water systems” which involved seven NSF Directorates as well as the USDA/NIFA coordination.  This $80M program of research investigated the complexity of the F&E&W coupled system of systems including modeling, cyberinfrastructure and design, technical and social “solutions” as well as education, outreach and training.   He represents NSF on several government committees including SWAQ.  During his academic career, Dr. Torgersen spent 25 as faculty at the University of Connecticut and has over 90 peer-reviewed publications across the scope of isotope dating of groundwater; surface water processes, limnology, oceanography, and paleoclimate.  He served over 17 years as an editor for various journals including Water Resources Research, Reviews of Geophysics and has served as a consultant for IAEA.


Dwane Young

Chief, Water Data Integration Branch

EPA Office of Water

Young.Dwane at

Dwane has worked with EPA since 2005, and has worked on environmental data management systems in both the Office of Water and the Office of Solid Waste and Emergency Response.  Dwane has also served as the Federal Liaison to the Western States Water Council. Dwane led the initial development of the Water Quality Exchange (WQX) for EPA, played a key role in the development of EPA’s Clean Water Act Integrated Reporting systems, oversaw the implementation of updates to the RCRAInfo system, and has extensive experience with assisting partners in sharing water quality data.  Dwane has a degree in Fisheries and Wildlife Management from Utah State University.  He has spent the last seventeen years working on environmental data management systems.

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