Hydrologic Modeling

Possible changes in temperature and precipitation over the next several decades may have implications for New England’s agricultural community, such as changing plant water availability and crop yield variability. The U.S. Geological Survey, in cooperation with the U.S. Department of Agriculture and the University of Maine, is predicting the potential hydrological effects based on these climatic...

The Applied Hydrology Branch provides hydrologic data, research, and tools to water resource managers, stakeholders and policy makers that inform critical water management decisions throughout New England. This branch is divided into the Hydrology and Hydraulics Section, Water Quality Networks Section, Connecticut Water Quality Monitoring Section, and Massachusetts/Rhode Island Water Quality...

The Hydrologic Interpretive Branch collaborates with stakeholders to design, execute, and publish scientific studies that address issues associated with water resources at local, regional, and national scales. This branch has three sections that focus on watershed and urban hydrology, integrated modeling of hydrologic systems, and the development of new statistical and geospatial tools.

The U.S. Geological Survey (USGS), in cooperation with the Town of Falmouth, is simulating the potential effects of proposed changes to wastewater return flow on the freshwater system in Falmouth, Massachusetts, using an existing regional groundwater flow model.

The U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency (EPA), is developing tools and methods to help assess the fate and transport of anthropogenic and geologically sourced contaminants in the water cycle at waste sites throughout the nation.

The U.S. Geological Survey (USGS) is supporting the U.S. Environmental Protection Agency (EPA) in assessing facilities nationwide that have historically produced per- and polyfluoroalkyl substances (PFAS) or used them in chemical manufacturing processes. In collaboration with EPA subcontractors, USGS is providing subject-matter expertise in PFAS fate and transport in the vadose zone and...

The natural environment and manmade infrastructure must be considered when characterizing hydrology and water quality in urban watersheds. This requirement is critical in stormwater management, which considers water flowing above ground and below ground through stormwater networks. The U.S. Geological Survey (USGS), with support from the U.S. Environmental Protection Agency (EPA), is expanding its...

The Water Cycle Center is a cooperation between U.S. Geological Survey and academic partners in the Northeast that studies complete water cycles and watersheds, from mountaintops to shorelines, concentrating on freshwater ecosystems. This research advances the understanding of processes that determine water availability and is needed to best address future water resource challenges.

The U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency and the New Hampshire Department of Environmental Services, is conducting advanced site characterization activities at the Savage Municipal Water Supply Superfund site in Milford, New Hampshire, and implementing new remediation efforts based on USGS science and tools.

The U.S. Geological Survey (USGS) developed a tool that uses a chemical budget approach to help determine which fractures in a fracture zone may be dominating the water chemistry of open boreholes in bedrock aquifers. The tool uses a Monte Carlo approach and measured concentrations of anthropogenic contaminants to simulate many different scenarios and predict the most likely source direction of...

The U.S. Geological Survey, New England Water Science Center, in collaboration with the U.S. Environmental Protection Agency (EPA), is modeling seasonal nutrient loads to Long Island Sound (LIS). Nutrients that originate from within the 41,867-square-mile section of the LIS watershed that is north of the Sound include both point (specific) and nonpoint (widespread) sources. Dynamic modeling of the...

The U.S. Geological Survey (USGS) and the University of Massachusetts at Amherst (UMass Amherst), in cooperation with the Massachusetts Department of Environmental Protection (MassDEP), began a series of studies in 2019 to develop a GIS-based hydraulic modeling tool and to provide preliminary culvert designs for stream-crossing replacement projects in Massachusetts on USGS StreamStats.