Publications
USGS scientists have produced numerous publications related to Long Island Sound. Enter a keyword or use the filters below to search for specific topics of interest.
Filter Total Items: 129
Assessing groundwater availability in the Northern Atlantic Coastal Plain aquifer system
The U.S. Geological Survey's Groundwater Resources Program is conducting an assessment of groundwater availability throughout the United States to gain a better understanding of the status of the Nation's groundwater resources and how changes in land use, water use, and climate may affect those resources. The goal of this National assessment is to improve our ability to forecast water availability
Authors
John P. Masterson, Jason P. Pope, Jack Monti, Mark R. Nardi
Source and delivery of nutrients to receiving waters in the Northeastern and Mid-Atlantic regions of the United States
This study investigates nutrient sources and transport to receiving waters, in order to provide spatially detailed information to aid water-resources managers concerned with eutrophication and nutrient management strategies. SPAtially Referenced Regressions On Watershed attributes (SPARROW) nutrient models were developed for the Northeastern and Mid-Atlantic (NE US) regions of the United States to
Authors
Richard B. Moore, Criag M. Johnston, Richard A. Smith, Bryan Milstead
Source and Delivery of Nutrients to Receiving Waters in the Northeastern and Mid-Atlantic Regions of the United States
This study investigates nutrient sources and transport to receiving waters, in order to provide spatially detailed information to aid water‐resources managers concerned with eutrophication and nutrient management strategies. SPAtially Referenced Regressions On Watershed attributes (SPARROW) nutrient models were developed for the Northeastern and Mid‐Atlantic (NE US) regions of the United States to
Authors
R. B. Moore, C. M. Johnston, R. A. Smith, B. Milstead
Estimation of the effects of land use and groundwater withdrawals on streamflow for the Pomperaug River, Connecticut
A precipitation runoff model for the Pomperaug River watershed, Connecticut was developed to address issues of concern including the effect of development on streamflow and groundwater recharge, and the implications of water withdrawals on streamflow. The model was parameterized using a strategy that requires a minimum of calibration and optimization by establishing basic relations between the par
Authors
David M. Bjerklie, J. Jeffrey Starn, Claudia Tamayo
Nitrogen Loads in Groundwater Entering Back Bays and Ocean from Fire Island National Seashore, Long Island, New York
Fire Island is a barrier island that lies south of central Long Island, N.Y. It is about 60 km (37 mi) long and 0.5 km (1/4 mi) wide and is bounded by the Great South Bay, Narrow Bay, and Moriches Bay estuaries to the north; by the Atlantic Ocean to the south; by Fire Island Inlet to the west; and by Moriches Inlet to the east (fig. 1). Fire Island National Seashore (FIIS) encompasses a 42-km (26-
Authors
Christopher Schubert, M. Peter deVries, Anne J. Finch
Determining the effects of dams on subdaily variation in river flows at a whole-basin scale
River regulation can alter the frequency and magnitude of subdaily flow variations causing major impacts on ecological structure and function. We developed an approach to quantify subdaily flow variation for multiple sites across a large watershed to assess the potential impacts of different dam operations (flood control, run-of-river hydropower and peaking hydropower) on natural communities. We u
Authors
J. K. H. Zimmerman, B. H. Letcher, K.H. Nislow, K.A. Lutz, F.J. Magilligan
Nitrogen attenuation in the Connecticut River, northeastern USA; a comparison of mass balance and N2 production modeling approaches
Two methods were used to measure in-stream nitrogen loss in the Connecticut River during studies conducted in April and August 2005. A mass balance on nitrogen inputs and output for two study reaches (55 and 66 km), at spring high flow and at summer low flow, was computed on the basis of total nitrogen concentrations and measured river discharges in the Connecticut River and its tributaries. In a
Authors
T. E. Smith, A.E. Laursen, J. R. Deacon
Estuarine sediment transport by gravity-driven movement of the nepheloid layer, Long Island Sound
Interpretation of sidescan-sonar imagery provides evidence that down-slope gravity-driven movement of the nepheloid layer constitutes an important mode of transporting sediment into the basins of north-central Long Island Sound, a major US East Coast estuary. In the Western Basin, this transport mechanism has formed dendritic drainage systems characterized by branching patterns of low backscatter
Authors
L. J. Poppe, K.Y. McMullen, S.J. Williams, J.M. Crocker, E. F. Doran
Hydrogeologic settings and ground-water flow simulations for regional studies of the Transport of Anthropogenic and Natural Contaminants to public-supply wells - Studies begun in 2001
This study of the Transport of Anthropogenic and Natural Contaminants to public-supply wells (TANC study) is being conducted as part of the U.S. Geological Survey National Water Quality Assessment (NAWQA) Program and was designed to increase understanding of the most important factors to consider in ground-water vulnerability assessments. The seven TANC studies that began in 2001 used retrospectiv
Authors
Suzanne S. Paschke
Nitrogen Loading in Jamaica Bay, Long Island, New York: Predevelopment to 2005
Nitrogen loading to Jamaica Bay, a highly urbanized estuary on the southern shore of western Long Island, New York, has increased from an estimated rate of 35.6 kilograms per day (kg/d) under predevelopment conditions (pre-1900), chiefly as nitrate plus nitrite from ground-water inflow, to an estimated 15,800 kilograms per day as total nitrogen in 2005. The principal point sources are wastewater-t
Authors
Mark J. Benotti, Irene Abbene, Stephen A. Terracciano
Nutrient Loads and Ground-Water Residence Times in an Agricultural Basin in North-Central Connecticut
Nutrient loads from ground-water discharge were studied in Broad Brook Basin, a 15.8-square mile basin in north-central Connecticut, dominated by agricultural activity. Loads were calculated, along with the travel times of ground water from recharge to discharge areas, to estimate the time required for the effects of Best Management Practices (BMPs) to be observed. Most concentrations of nitrogen
Authors
John R. Mullaney
Simulations of Ground-Water Flow and Residence Time near Woodbury, Connecticut
Water withdrawn for public use from glacial stratified deposits in Woodbury, Connecticut, is a mixture of water from different source areas, each having a characteristic water-quality signature. The physical processes leading to this mixture were explored using a numerical model to simulate steady-state ground-water source areas and residence times for a public water-supply well (PSW-1) in Woodbur
Authors
J. Jeffrey Starn, Craig J. Brown