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Filters Date Range Past year (2) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Martin A Briggs U.S. Geological Survey, Hydrogeophysics Branch Frederick D Day-Lewis Kamini Singha Courtney R Scruggs More... Tag Types Theme (23) Place (23) Harvest Set (3) Label (1) Tag Schemes Geographic Names Information System (18) ISO 19115 Topic Category (23) The National Map Collection Thesaurus (18) The National Map Product Format Thesaurus (18) USGS Thesaurus (5) Geographic Names Information Systems (2) The National Map Product Extent Thesaurus (18) More... View Results as: JSON ATOM CSV

USGS 1:31680-scale Quadrangle for Sandwich, MA 1943 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:31680-scale Quadrangle for Sandwich, MA 1938 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:24000-scale Quadrangle for Sandwich, MA 1957 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:31680-scale Quadrangle for Sandwich, MA 1943 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:24000-scale Quadrangle for Sandwich, MA 1957 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:62500-scale Quadrangle for Sandwich, IL 1950 USGS Historical Quadrangle in GeoPDF. Tags: 15 x 15 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 15 x 15 Minute Map Series, IL, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags Bulk electrical conductivity data Tracking changes in bulk electrical conductivity (EC) during tracer tests in saturated sediments allows for direct observation of both mobile and less-mobile pore space exchange dynamics. Electrode arrays made up of four stainless steel rods (insulated with the exception of exposed 0.5 cm tips) were installed vertically at depths of interest and apparent electrical resistivity data (the inverse of bulk EC) were collected using a Wenner configuration with an AGI SuperSting R8 meter. The Bulk EC data are described and listed within the files below. Controlled, downward flow experiments were conducted in Dual-domain porosity apparatus (DDPA). Downward flow rates ranged from 1.2 to 1.4 m/d in DDPA1 and at 1 m/d, 3 m/d,... Tags: Groundwater, Inland Waters, Massachusetts, Sandwich, Snake Pond, All tags... Surface Water, environment, geophysics, geophysics, geoscientificInformation, groundwater, hydrogeology, hydrology, inlandWaters, measurement, seepage, tracer, Fewer tags USGS 1:25000-scale Quadrangle for Sandwich, MA 1972 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:31680-scale Quadrangle for Sandwich, MA 1943 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags MODFLOW2005 groundwater-flow model used to simulate water-supply pumping scenarios near the Hyannis Ponds Wildlife Management Area, Barnstable, Massachusetts The U.S. Geological Survey, in cooperation with the Town of Barnstable, Massachusetts, modified an existing numerical, steady-state regional MODFLOW-2005 groundwater-flow model to evaluate changes in water levels from a reference condition (2015) for nine pumping and wastewater return flow scenarios prepared by the Hyannis Water System. The three-dimensional, steady-state groundwater-flow model used to simulate water level changes is a modified and recalibrated version of an existing model that was used to simulate the potential effects of sea-level rise on groundwater levels of the Sagamore and Monomoy freshwater lenses of the Cape Cod aquifer (Walter and others, 2016) (https://doi.org/10.3133/sir20165058). Two... Tags: Barnstable, Bourne, Brewster, Cape Cod, Chatham, All tags... Dennis, Environment, Falmouth, Geoscientific Information, Groundwater, Groundwater Model, Harwich, Inland Waters, Inland Waters, MODFLOW-2005, Mashpee, Massachusetts, Monomoy lens, NSDI, Orleans, Sagamore lens, Saltwater Intrusion, Sandwich, USGS Science Data Catalog (SDC), Yarmouth, usgsgroundwatermodel, Fewer tags USGS 1:24000-scale Quadrangle for Sandwich, MA 1939 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Preliminary, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:31680-scale Quadrangle for Sandwich, MA 1943 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:31680-scale Quadrangle for Sandwich, MA 1940 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Preliminary, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:62500-scale Quadrangle for Sandwich, IL 1950 USGS Historical Quadrangle in GeoPDF. Tags: 15 x 15 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 15 x 15 Minute Map Series, IL, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:24000-scale Quadrangle for Sandwich, MA 1957 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags Electrical geophysical data collected in the shallow sediments of Snake Pond, Cape Cod, USA Quantification of mobile/less-mobile porosity dynamics at the sediment/water interface is critical to predicting contaminant storage, release, and transformation processes. Zones in groundwater flow-through lakes where lake water recharges the aquifer can strongly control aquifer water quality. Less-mobile porosity has previously been characterized in aquifers using flow path scale (10's of m+) tracer injections which are analyzed using numerical models. Methodology was recently developed to couple geoelectric measurements (bulk electrical conductivity, EC), which are directly sensitive to less-mobile ionic tracer exchange processes, with pumped fluid EC tracer data over time. If the fluid EC concentration history... Tags: Groundwater, Groundwater and Streamflow Information Program, InlandWaters, Massachusetts, Sandwich, All tags... Snake Pond, Surface Water, USGS Science Data Catalog (SDC), environment, geophysics, geophysics, geoscientificInformation, groundwater, hydrogeology, hydrology, inlandWaters, measurement, seepage, tracer, Fewer tags Fluid electrical conductivity data When water is pumped slowly from saturated sediment-water inteface sediments, the more highly connected, mobile porosity domain is prefferentially sampled, compared to less-mobile pore spaces. Changes in fluid electrical conductivity (EC) during controlled downward ionic tracer injections into interface sediments can be assumed to represent mobile porosity dynamics, which are therefore distinguished from less-mobile porosity dynamics that is measured using bulk EC geoelectrical methods. Fluid EC samples were drawn at flow rates similar to tracer injection rates to prevent inducing preferential flow. The data were collected using a stainless steel tube with slits cut into the bottom (USGS MINIPOINT style) connected... Tags: Groundwater, Inland Waters, Massachusetts, Sandwich, Snake Pond, All tags... Surface Water, environment, geophysics, geophysics, geoscientificInformation, groundwater, hydrogeology, hydrology, inlandWaters, measurement, seepage, tracer, Fewer tags USGS 1:62500-scale Quadrangle for Sandwich, IL 1948 USGS Historical Quadrangle in GeoPDF. Tags: 15 x 15 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 15 x 15 Minute Map Series, IL, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags USGS 1:25000-scale Quadrangle for Sandwich, MA 1972 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, Downloadable Data, GeoPDF, GeoTIFF, Historical Topographic Maps, All tags... Historical Topographic Maps 7.5 x 7.5 Minute Map Series, MA, Map, Sandwich, imageryBaseMapsEarthCover, Fewer tags MODFLOW-2005 and MODPATH used to simulate the hydrologic system and transport of contaminants near Joint Base Cape Cod, Western Cape Cod, Massachusetts The U.S. Geological Survey, in cooperation with the Air Force Civil Engineer Center, developed a numerical, steady-state regional model, using MODFLOW-2005, to evaluate current (2010) conditions and the potential effects of future (2030) groundwater withdrawals on water levels, streamflows, hydraulic gradients, and advective transport near the Joint Base Cape Cod (JBCC). Two numerical models were used in this analysis. An existing two-dimensional (one layer) model (termed the “coast model”), developed as part of a previous investigation of the potential effects of sea-level rise on the Cape Cod aquifer system (https://doi.org/10.3133/sir20165058), simulates the position of the freshwater/saltwater interface by using... Tags: Bourne, Cape Cod, Falmouth, Groundwater, Groundwater Model, All tags... InlandWaters, Joint Base Cape Cod, MODFLOW2005, MODPATH, Mashpee, Massachusetts, NSDI, Sagamore lens, Saltwater Intrusion, Sandwich, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, usgsgroundwatermodel, Fewer tags 1 2 »