Hydrogeology is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust. The terms groundwater hydrology, geohydrology, and hydrogeology are often used interchangeably.
Saltwater intrusion is the movement of saline water into freshwater aquifers, which can lead to groundwater quality degradation, including drinking water sources, and other consequences. Saltwater intrusion can naturally occur in coastal aquifers, owing to the hydraulic connection between groundwater and seawater. Because saline water has a higher mineral content than freshwater, it is denser and has a higher water pressure. As a result, saltwater can push inland beneath the freshwater. In other topologies, submarine groundwater discharge can push fresh water into saltwater.
A Civil Action is a 1998 American legal drama film written and directed by Steven Zaillian, based on the 1995 book of the same name by Jonathan Harr. Starring John Travolta, Robert Duvall, James Gandolfini, Dan Hedaya, John Lithgow, William H. Macy, Kathleen Quinlan, and Tony Shalhoub, it tells the true story of a court case about environmental pollution that took place in Woburn, Massachusetts in the 1980s. The film and court case revolve around the issue of trichloroethylene, an industrial solvent, and its contamination of a local aquifer. A lawsuit was filed over industrial operations that appeared to have caused fatal cases of leukemia and cancer, as well as a wide variety of other health problems, among the citizens of the city. The case involved is Anne Anderson, et al., v. Cryovac, Inc., et al.. The first reported decision in the case is at 96 F.R.D. 431. Duvall was nominated for the Academy Award for Best Supporting Actor for his performance.
Olgierd Cecil Zienkiewicz was a British academic of Polish descent, mathematician, and civil engineer. He was born in Caterham, England. He was one of the early pioneers of the finite element method. Since his first paper in 1947 dealing with numerical approximation to the stress analysis of dams, he published nearly 600 papers and wrote or edited more than 25 books.
The Sono arsenic filter was invented in 2006 by Abul Hussam, who is a chemistry professor at George Mason University (GMU) in Fairfax, Virginia. It was developed to deal with the problem of arsenic contamination of groundwater. The filter is now in use in Hussam's native Bangladesh.
Abul Hussam is the inventor of the Sono arsenic filter. He is a chemistry professor at George Mason University (GMU) in Fairfax, Virginia, and a member of advisory board at Shahjalal University of Science and Technology.
Ray William Clough,, was Byron L. and Elvira E. Nishkian Professor of structural engineering in the department of civil engineering at the University of California, Berkeley and one of the founders of the finite element method (FEM). His article in 1956 was one of the first applications of this computational method. He coined the term “finite elements” in an article in 1960. He was born in Seattle.
Hydrological optimization applies mathematical optimization techniques to water-related problems. These problems may be for surface water, groundwater, or the combination. The work is interdisciplinary, and may be done by hydrologists, civil engineers, environmental engineers, and operations researchers.
Geoprofessions is a term coined by the Geoprofessional Business Association to connote various technical disciplines that involve engineering, earth and environmental services applied to below-ground (“subsurface”), ground-surface, and ground-surface-connected conditions, structures, or formations. The principal disciplines include, as major categories:
Andrew John Whittle is Edmund K. Turner Professor of Civil and Environmental Engineering and former Head of the Department of Civil & Environmental Engineering at the Massachusetts Institute of Technology. He specializes in Geotechnical Engineering and more particularly in numerical and constitutive modelling.
Groundwater pollution occurs when pollutants are released to the ground and make their way into groundwater. This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution. Groundwater pollution can occur from on-site sanitation systems, landfill leachate, effluent from wastewater treatment plants, leaking sewers, petrol filling stations, hydraulic fracturing (fracking) or from over application of fertilizers in agriculture. Pollution can also occur from naturally occurring contaminants, such as arsenic or fluoride. Using polluted groundwater causes hazards to public health through poisoning or the spread of disease.
Christine A. Shoemaker joined the Department of Industrial Systems Engineering & Management and the Department of Civil and Environmental Engineering as NUS Distinguished Professor on 31 August 2015. Prof Shoemaker obtained her Ph.D. in Mathematics from the University of Southern California supervised by Richard Bellman in Dynamic Programming. Upon her graduation, she joined the School of Civil and Environmental Engineering and later the School of Operations Research and Information Engineering at Cornell University, Ithaca, NY, USA. She was promoted to full Professor in 1985. From 1985 to 1988, Professor Shoemaker was the Chair of the Department of Environmental Engineering at Cornell University. In 2002 Prof. Shoemaker was appointed the Joseph P. Ripley Professor of Engineering at Cornell University, USA. In 2015, Prof. Shoemaker became Distinguished Professor at National University of Singapore, in both Industrial Systems Engineering and Management Department and Civil and Environmental Engineering Department. While in Singapore she has worked with Singapore water agency to apply her global optimization algorithms to improve the selection of parameters for computationally expensive partial differential equation models for lake hydrodynamics and complex multi-species water quality elements.These results used her group’s new parallel algorithms.
Lynn Walter Gelhar is an American civil engineer focusing in hydrology and is currently Professor Emeritus at Massachusetts Institute of Technology. He is recognized for pioneering research in stochastic subsurface hydrology, has leading research in the area of field-scale contaminant transport experiments, and has extensive experience on the hydrologic aspects of nuclear waste disposal.
Numerical Methods for Partial Differential Equations is a bimonthly peer-reviewed scientific journal covering the development and analysis of new methods for the numerical solution of partial differential equations. It was established in 1985 and is published by John Wiley & Sons. The editors-in-chief are George F. Pinder and John R. Whiteman.
The Wellhead Protection Program in the 1986 amendments to the Safe Drinking Water Act requires states to protect underground sources of drinking water from contaminants that may adversely affect human health. More than one-third of the people in the United States depend on groundwater for drinking water. However, residential, municipal, commercial, industrial, and agricultural activities can all contaminate groundwater. In the event of contamination, a community's drinking water supply can develop poor quality or be lost altogether. Groundwater contamination might not be detected for a long period of time and health problems can occur from drinking contaminated water. Cleanup of a contaminated underground source of drinking water may be impossible or so difficult it costs thousands or millions of dollars. The U.S. Congress requiring Wellhead Protection Programs by 42 U.S.C. § 300h–7 in the Safe Drinking Water Act applied the concept that it is better to prevent groundwater contamination than try to remediate it. U.S. Congress by 42 U.S.C. § 300h–7 requires identification of the areas that need implementation of control measures in order to protect public water supply wells from contamination as "wellhead protection areas". Communities can use the police power established by the Tenth Amendment to the U.S. Constitution to enforce zoning and subdivision regulations to protect drinking water sources. Thereby communities can direct development away from areas that would pose a threat to drinking water sources.
Holly Michael is an American hydrogeologist and Associate Professor of geology at the University of Delaware's College of Earth, Ocean, and Environment.
Mary Catherine Hill is an American hydrologist, the winner of the Walter L. Huber Civil Engineering Research Prize and of the Dooge Medal of the International Association of Hydrological Sciences, a Darcy Lecturer for the National Ground Water Association, and Fellow of the American Geophysical Union. After working for many years at the United States Geological Survey, she became a professor of geology at the University of Kansas.
J. Jaime Gómez-Hernández is a Spanish civil engineer specialized in geostatistics and hydrogeology. He is a full professor of hydraulic engineering at the School of Civil Engineering of the Technical University of Valencia. He was conferred the William Christian Krumbein Medal in 2020 from the International Association for Mathematical Geosciences. He also received the 2020 Prince Sultan bin Abdulaziz International Prize for Water in the field of groundwater.
Abhijit Mukherjee is an Indian professor, scientist and currently Professor of Geology and Geophysics and the School of Environmental Science and Engineering of IIT Kharagpur. He has been selected for Shanti Swarup Bhatnagar Prize for Science and Technology in 2020 in the field of Earth Atmosphere Ocean and Planetary Sciences.
Hendrik Marten Haitjema is a Dutch and American engineer and hydrologist, and professor emeritus at Indiana University. He is recipient of the 2017 Keith A. Anderson Award of the National Ground Water Association. He is author of the book Analytic Element Modeling of Groundwater Flow and the widely used computational groundwater flow modeling system GFLOW.
