Laura Hayes

MODFLOW-2000 and Management-Optimization Models Used to Evaluate Alternative Groundwater-Withdrawal Scenarios on Water Levels in Kingsbury Pond, Upper Charles River Basin, Eastern Massachusetts

An existing, three-dimensional, transient groundwater-flow model of the Upper Charles River Basin, eastern Massachusetts, was modified to evaluate alternative groundwater-withdrawal scenarios on water levels in Kingsbury Pond. The pond is hydraulically connected to the groundwater-flow system, and water levels in the pond fluctuate in response to recharge to the aquifer from precipitation and wastewater return flows through septic systems, to withdrawals from the aquifer at nearby wells, and to precipitation directly on the pond surface. Concerns about the effects of groundwater withdrawals on water levels in the pond prompted an investigation by the U.S. Geological Survey (USGS) in cooperation with the Massachusetts...

Tags: Eastern Massachusetts, Franklin, Massachusetts, Groundwater Model, Hydrology, Hydrology, All tags... InlandWaters, Kingsbury Pond, MODFLOW-2000, Mill River Basin, Mine Brook Basin, Norfolk County, Norfolk, Massachusetts, USGS Science Data Catalog (SDC), Upper Charles River Basin, Water Resources, Water Resources, Wrentham, Massachusetts, environment, geoscientificInformation, groundwater, inlandWaters, management optimization model, usgsgroundwatermodel, Fewer tags

Flood-Inundation Shapefiles and Grids for Lake Champlain in Vermont and New York

Static flood-inundation boundary extents were created for Lake Champlain in Franklin, Chittenden, Addison, Rutland, and Grand Isle Counties in Vermont and Clinton, Essex, and Washington Counties in New York by using recently acquired (2009, 2012, 2014, and 2015) light detection and ranging (lidar) data. The corresponding flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science website at http://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal extent of flooding corresponding to selected water-level elevations (stages) at the USGS lake gage on the Richelieu River (Lake Champlain) at Rouses Point, N.Y. (station number 04295000). In this study, wind and seiche...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Flood Inundation, Lake Champlain, Remote Sensing, USGS Science Data Catalog (SDC), Water Resources

Network Attributes for the High Resolution National Hydrography Dataset (NHD) based initial 3D Hydrography Program Network

See Full Metadata Here This dataset contains the initial 3D Hydrography Program (3DHP) flow network topology which is based on the final High Resolution National Hydrography Dataset (NHD) and a set of mainstem river identifiers based on on the Medium resolution NHDPlus Version 2 (NHDPlusV2). The 3DHP flow network topology and mainstem identifiers contained in this data release add two key pieces of information to the flow table of the National Hydrography Dataset: 1) at every junction, one and only one main upstream and downstream connection have been identified 2) every "in network" flowline has been assigned a mainstem identifier that places it into a hierarchy of rivers and drainage basins. For description...

Categories: Data; Tags: Conterminous US, Hydrology, USGS Science Data Catalog (SDC), environment

Crosswalk Table Between NHDPlus V2.1 and its Accompanying Watershed Boundary Dataset Snapshot of 12-Digit Hydrologic Units

A crosswalk table between NHDPlus version 2.1 flowlines (using the unique field COMID) and the Watershed Boundary Dataset (WBD) 12-digit-hydrologic units (HU-12) is provided for the 48 contiguous United States. The crosswalk table provides a WBD HU-12 assignment for every networked flowline in the NHDPlus. In this way, the network developed for navigation and modeling, NHDPlus, is aligned with accounting units of the WBD HU-12s to the extent possible given the assumptions that were made in creating each. A crosswalk table for NHDPlus isolated sinks was produced by a simple overlay process where the sinks were assigned HU-12 values based on their position relative to the WBD snapshot HU-12s. This table was integrated...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: COMID, HUC12, NHDPlus, USGS Science Data Catalog (SDC), WBD, All tags... flowlines, sinks, Fewer tags

Exceedance Probability and Predictor Data for Uranium and Radon Concentrations in New Hampshire Groundwater

Statewide maps of the probability of exceeding a given concentration of either uranium (U) or radon (Rn) in New Hampshire groundwater (represented as statewide rasters) are the product of statistical analyses and are available here. The dependent variables in these statistical models were either 1) the natural log of Rn concentrations or 2) a dichotomous variable indicating the exceedance of 1 microgram per liter (μg/L) U in groundwater samples. In the case of U, a dichotomous variable was used because of the large number of measured samples below the detection limit. A boosted Regression Tree (BRT) model was selected for the U analysis with an exceedance probability of 1 ug/L because that was near the center of...

Categories: Data; Tags: Groundwater, Hydrologic Position, Hydrology, Information Sciences, National, All tags... New Hampshire, Radon, USGS Science Data Catalog (SDC), United States, Uranium, Water Quality, Water Quality, Water Resources, concentration, probability, Fewer tags