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Location Folder Show Tree ROOT _ScienceBase Catalog __USGS Lower Mississippi-Gulf Water Science Center @ Bathymetric Surveys @ Bridge-Sites Studies @ Flood Inundation Maps @ Groundwater Quality and Quantity @ Lake and Reservoir Studies More... Filters Date Range Past year (10) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (1) Types ArcGIS REST Map Service (26) Downloadable (26) Map Service (26) OGC WFS Layer (4) OGC WMS Layer (4) More... Contacts Benjamin V Miller U.S. Geological Survey - ScienceBase Benjamin V Miller U.S. Geological Survey, Southeast Region Water Resources More... Categories Data (26) Collection (2) Tag Types Theme (23) Place (23) USGS Scientific Topic Keyword (10) Harvest Set (15) Tag Schemes None (17) USGS Thesaurus (19) Common geographic areas (6) ISO 19115 Topic Category (12) Places (1) Cooperators (4) USGS Thesaurus Groundwater (1) More... View Results as: JSON ATOM CSV Browse Folder

Seepage investigation and dye tracing to characterize base flow stream behavior in Big Creek watershed, Newton County, Arkansas This data release pertains to a seepage investigation and dye tracing study conducted in the Big Creek watershed of Newton County, Arkansas. The seepage dataset includes geospatial files of discharge measurement points and zero-flow observations along with vector lines delineating losing and gaining stream reaches. The dye tracing dataset consists of geospatial files of monitoring sites, dye injection location, and dye flow paths. Hydrologic systems in karst environments have a high degree of interconnectivity between surface water and groundwater systems. Because of this interconnectivity, activities which occur on the surface in karst environments have a direct impact on the water quality and quantity of karst... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Arkansas, Big Creek, Buffalo National River, Buffalo River, Hydrology, All tags... Left Fork Big Creek, Newton County, Ozarks, USGS Science Data Catalog (SDC), Water Resources, dye tracing, fluorescent dye, freshwater ecosystems, groundwater, groundwater, groundwater and surface-water interaction, groundwater tracing, hydrogeology, karst, karst, karst areas, karst hydrology, seepage investigation, seepage run, seepage studies, springs (hydrographic), Fewer tags Annual average quick-flow runoff across the CONUS, 2000-2013 This dataset includes 800m resolution long-term average estimates of the contributions to the quick-flow runoff component of the water budget over the time period from 2000-2013 and annual estimates for the individual years. These estimates were developed with a new empirical regression for surface runoff data generated from a USGS-developed hydrograph separation program (PART) run on streamflow data from 1434 gaged watersheds as a function of surficial geology type (USGS), precipitation (PRISM), and soil hydraulic conductivity (STATSGO). Irrigated water quantities reported in the 2000, 2005, and 2010 USGS Water Use datasets are also incorporated as effective additional precipitation. The contributing input datasets... Categories: Collection, Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Woodbury, Tennessee Karst Groundwater Dye Tracing Water Year 2022 Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to contamination due to the inherent connectivity between surface water and groundwater systems in karst systems. A partnership between the U.S. Geological Survey (USGS) and Tennessee Department of Conservation (TDEC) was formed to investigate karst spring systems across the state utilizing fluorescent groundwater tracing, particularly in areas where these resources may be used as drinking water sources. In fall 2021, USGS and TDEC staff identified possible vulnerabilities or complexities that may exist within karst spring systems... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Cannon County, Cavender Branch, Doolittle Branch, Dye Trace, East Fork of the Stones River, All tags... Eastern Highland Rim, Hydrogeology, Hydrology, Karst, Parchcorn Hollow, Short Mountain, Springs, TDEC, Tennessee, Tennessee, Tennessee Department of Environment and Conservation, WOODBURY TENNESSEE DYE TRACING SPRINGS CAVES KARST GEOLOGY HYDROLOGY, Woodbury, Woodbury Water Department, caves, caves, dye tracing, dye tracing, groundwater, groundwater and surface-water interaction, groundwater flow, groundwater tracing, hydrogeology, karst, karst, karst, karst hydrology, karst hydrology, karst topography, Fewer tags Cowan, Tennessee Karst Groundwater Dye Tracing Water Year 2022 Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to contamination due to the inherent connectivity between surface water and groundwater systems in karst systems. A partnership between the U.S. Geological Survey (USGS) and Tennessee Department of Conservation (TDEC) was formed to investigate karst spring systems across the state utilizing fluorescent groundwater tracing, particularly in areas where these resources may be used as drinking water sources. In fall 2021, USGS and TDEC staff identified possible vulnerabilities or complexities that may exist within karst spring systems... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Boiling Fork Creek, COWAN TENNESSEE DYE TRACING SPRINGS CAVES KARST GEOLOGY HYDROLOGY, Cowan, Cowan, Cumberland Plateau, All tags... Dye Trace, Franklin County, Hawkins Cove, Hydrogeology, Hydrology, Karst, Sawanee, Springs, TDEC, Tennessee, Tennessee, Tennessee Department of Environment and Conservation, University of the South, caves, caves, dye tracing, dye tracing, groundwater, groundwater and surface-water interaction, groundwater flow, groundwater tracing, hydrogeology, karst, karst, karst, karst hydrology, karst hydrology, karst topography, Fewer tags Hydrogeologic Aquifer Test dataset, Lower Mississippi-Gulf Water Science Center, December 2021 Since the 1940's, commercial, academic and government hydrologists have used aquifer tests to estimate the hydrogeologic properties of an aquifer near test wells. Results from these tests are recorded in various files, databases, reports, and scientific publications. The U.S. Geological Survey (USGS), Lower Mississippi-Gulf Water Science Center (LMG) is aggregating all aquifer test results from Alabama, Arkansas, Louisiana, Mississippi, and Tennessee into a single dataset that is publicly available in a machine-readable format. The LMG-Hydrogeologic Aquifer Test Dataset – December 2021 contains information and results from 690 hydrogeologic aquifer tests. Additionally, this dataset contains 7 attribute tables... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama, Alabama (AL), Aquifer, Aquifer, Aquifer Test, All tags... Aquifer Test, Arkansas, Arkansas, Conductivity, Conductivity, Groundwater, Groundwater, Hydrogeology, Hydrogeology, Louisiana, Louisiana, Lower Mississippi Gulf Water Science Center, Mississippi, Mississippi, Mississippi Alluvial Plain (MAP) Project, Mississippi Alluvial Plain (MAP) Project, Permeability, Permeability, Specific Capacity, Specific Capacity, Storage Coefficient, Storage Coefficient, Tennessee, Tennessee (TN), Transmissivity, Transmissivity, Fewer tags Hydraulic Conductivity and Transmissivity Estimates from Slug Tests in Wells Within the Mississippi Alluvial Plain, Arkansas and Mississippi, 2020 During the spring and summer of 2020, the U.S. Geological Survey, Lower Mississippi – Gulf Water Science Center, conducted single well slug tests on selected wells within the Mississippi Alluvial Plain in Arkansas and Mississippi to estimate hydraulic conductivity (K) and transmissivity (T) values for the aquifers in which the wells are screened. A total of 324 tests were conducted on 48 wells. The computer software AQTESOLV version 4.50.002 (HydroSOLVE, Inc., 2007) was used to interpret the slug test data to estimate K and T values. Mean estimates of K for the 44 wells screened in the Mississippi River Valley alluvial aquifer ranged from 3 to 401 feet per day (ft/day) and mean estimates of T ranged from 285 to... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: 500-Foot Sand Memphis Sand, 500-Foot Sand Memphis Sand, 500-foot Sand, Ar, Arkansas, All tags... Common geographic areas, Conductivity, Groundwataer, Groundwataer, Groundwater, Hydraulic Conductivity, Hydraulic Conductivity, Instantaneous change in head test, Instantaneous change in head test, Memphis Sand, Mississippi, Mississippi Alluvial plain, Mississippi River Valley alluvial aquifer, Mississippi River Valley alluvial aquifer, Mississippi embayment aquifer system, Mississippi embayment aquifer system, Slug Test, Slug Test, Sparta Sand, Sparta Sand, Transmissivity, Transmissivity, USGS Science Data Catalog (SDC), middle Claborne aquifer, middle Claiborne aquifer, middle Claiborne aquifer, Fewer tags Mapping karst groundwater flow paths and delineating recharge areas for springs in the Little Sequatchie and Pryor Cove watersheds, Tennessee The Little Sequatchie River and Pryor Cove Creek watersheds are located in southern Tennessee and drain the eastern escarpment of the Cumberland Plateau to the Sequatchie River. The Little Sequatchie River has the largest drainage area of any Sequatchie River tributary, with over 130 square miles in the topographic confines of the watershed. The hydrology of both watersheds has been largely altered by karst processes which have caused the majority of the streams to sink into the sub-surface, typically at the contact between the Mississippian Pennington Formation and the underlying Mississippian Bangor Limestone. A collaborative project between the U.S. Geological Survey and the U.S. Fish and Wildlife Service began... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Bryant Cove, Coppinger Cove, Cumberland Plateau, Grundy County, Hydrology, All tags... Little Sequatchie River, Marion County, Pryor Cove, Pryor Cove Creek, Sequatchie, Sequatchie Valley, Tennessee, USGS Science Data Catalog (SDC), Water Resources, biota, caves, caves, caves, dye tracing, dye tracing, groundwater, groundwater and surface-water interaction, groundwater flow, groundwater tracing, hydrogeology, karst, karst, karst areas, karst hydrology, karst topography, water cycle, Fewer tags Digital Dataset for the Geomorphology of the Lower Mississippi River Valley in Missouri, Kentucky, Arkansas, Tennessee, Louisiana, and Mississippi A digital dataset of the geomorphology of the Lower Mississippi River Valley in Missouri, Kentucky, Arkansas, Tennessee, Louisiana, and Mississippi was developed from Roger T. Saucier’s “Geomorphology and Quaternary Geologic History of the Lower Mississippi Valley, Volumes I and II” (1994) as part of the Mississippi Alluvial Plain (MAP) Regional Water Availability Study. The maps included in the 1994 reports provide a comprehensive overview of the previously misunderstood alluvial valley geology and characterize twenty-nine Pleistocene and Holocene alluvial deposits, such as point bars, abandoned channels, backswamps, and natural levees. Each map was georeferenced to North American Datum 1983 and projected to USA... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Alluvial Fan, Apron, Arkansas, Arkansas, Arkansas River, All tags... Deweyville Complex, Early Wisconsin Stage, Holocene, Illinois, Illinois, Intermediate Complex, Kentucky, Kentucky, Lacustrine, Late Wisconsin Stage, Louisiana, Louisiana, Mississippi, Mississippi, Mississippi Alluvial Plain, Mississippi Alluvial Plain, Mississippi River, Mississippi River Delta, Mississippi Valley, Missouri, Missouri, Pleistocene, Prairie Complex, Quaternary, Saucier, Tennessee, Tennessee, USGS Science Data Catalog (SDC), abandoned channel, abandoned courses, abandoned deltaic distributaries, alluvial system, backswamp deposit, chenier, delineation, floodbasin deposit, geologic history, geomorphology, geomorphology, inland swamp deposit, interdistributary deposits, lacustrine deltaic deposit, meander scroll, natural levee, point bar, relict beach ridges, relict channel, sand dune field, undifferentiated alluvium, undifferentiated fluvial deposit, undifferentiated paludal deposit, valley train, Fewer tags Tennessee Karst Groundwater Dye Tracing Water Year 2022 Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to contamination due to the inherent connectivity between surface water and groundwater in karst landscapes. A partnership between the U.S. Geological Survey (USGS) and Tennessee Department of Conservation (TDEC) was formed to investigate karst spring systems across the state utilizing fluorescent groundwater tracing, particularly in areas where these resources may be used as drinking water sources. In fall 2021, USGS and TDEC staff identified possible vulnerabilities or complexities that may exist within karst spring systems based... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Boiling Fork Creek, COWAN TENNESSEE KARST SPRING CAVE DYE TRACING TDEC USGS, Cannon County, TN, Cowan, TN, Cumberland Plateau, All tags... Dickson County, TN, East Fork Stones River, Eastern Highland Rim, Franklin County, TN, Jasper, TN, Marion County, TN, Sequatchie River, Sequatchie Valley, TENNESSEE DYE TRACING SPRINGS CAVES KARST GEOLOGY HYDROLOGY, TENNESSEE KARST SPRING CAVE DYE TRACING TDEC USGS, Tennesee Dye Tracing Karst Spring Cave Hydrology, Tennessee, Tennessee Springs Hydrology Geology Dye Tracing, USGS Science Data Catalog (SDC), Vanleer, TN, Western Highland Rim, Woodbury, TN, biota, caves, caves, dye tracing, dye tracing, groundwater, groundwater and surface-water interaction, groundwater tracing, hydrogeology, karst, karst, karst, karst hydrology, karst hydrology, karst tn dye tracing water year 22, karst topography, Fewer tags Vanleer, Tennessee Karst Groundwater Dye Tracing Water Year 2022 Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to contamination due to the inherent connectivity between surface water and groundwater systems in karst systems. A partnership between the U.S. Geological Survey (USGS) and Tennessee Department of Conservation (TDEC) was formed to investigate karst spring systems across the state utilizing fluorescent groundwater tracing, particularly in areas where these resources may be used as drinking water sources. In fall 2021, USGS and TDEC staff identified possible vulnerabilities or complexities that may exist within karst spring systems... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Bear Creek, Cedar Creek, Columbia Caverns, Cumberland River, Dickson County, All tags... Hydrogeology, Hydrology, Karst, Springs, TDEC, Tennessee, Tennessee, Tennessee Department of Environment and Conservation, VANLEER TENNESSEE DYE TRACING SPRINGS CAVES KARST GEOLOGY HYDROLOGY, VANLEER TN SPRINGS CAVE KARST HYDROLOGY GEOLOGY DYE TRACE, Vanleer, Vanleer, Vanleer Fire Department, Vanleer Water Department, Western Highland Rim, Yellow Creek, caves, caves, dye tracing, dye tracing, groundwater, groundwater and surface-water interaction, groundwater flow, groundwater tracing, hydrogeology, karst, karst, karst, karst hydrology, karst hydrology, karst topography, Fewer tags The use of Continuous Resistivity Profiling to Evaluate Geomorphologic Controls on Aquifer Recharge in the Mississippi Alluvial Plain from Money to Steiner, Mississippi, August 2016 to November 2016 In cooperation with more than 10 local, State, and Federal stakeholders, the United States Geological Survey (USGS) is studying the aquifer systems in and near the Mississippi River alluvial plain (https://www2.usgs.gov/water/lowermississippigulf/map/index.html). This data release consists of continuous resistivity profiling (CRP) data collected by the USGS to characterize the electrical properties of geomorphological features in the part of the Mississippi River alluvial plain from Money, Miss. to Steiner, Miss. A total of 68 kilometers of multiple CRP profiles were obtained. The CRP data were collected by using the Ohmmapper TR-5 system (Geometrics, Inc., 2016) to determine if different geomorphological features... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Continuous Resistivity Profiling, Geomorphology, Geophysics, Geophysics, Greenville, All tags... Hydrogeology, Mississippi, Mississippi Alluvial Plain, Mississippi River Delta, Money, Sunflower, USGS Science Data Catalog (SDC), Water Resources, geoscientificInformation, groundwater, hydrogeology, water resource management, Fewer tags Seepage investigation dataset for Big Creek watershed, Newton County, Arkansas This data release pertains to a seepage investigation and dye tracing study conducted in the Big Creek watershed of Newton County, Arkansas. The seepage dataset includes geospatial files of discharge measurement points and zero-flow observations along with vector lines delineating losing and gaining stream reaches. Hydrologic systems in karst environments have a high degree of interconnectivity between surface water and groundwater systems. Because of this interconnectivity, activities which occur on the surface in karst environments have a direct impact on the water quality and quantity of karst groundwater. The Ozark Plateaus Physiographic region (Ozarks) of northern Arkansas and southern Missouri is an extensive... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Arkansas, Big Creek, Buffalo National River, Buffalo River, Left Fork Big Creek, All tags... Newton County, Ozarks, geoscientificInformation, groundwater, groundwater and surface-water interaction, hydrogeology, inlandWaters, karst, karst, karst areas, karst hydrology, karst hydrology, seepage investigation, seepage investigation, seepage run, seepage studies, stream discharge, Fewer tags Hydrogeologic Aquifer Test dataset, Lower Mississippi-Gulf Water Science Center, December 2020 Since the 1940's, commercial, academic and government hydrologists have used aquifer tests to estimate the hydrogeologic properties of an aquifer near test wells. Results from these tests are recorded in various files, databases, reports, and scientific publications. The U.S. Geological Survey (USGS), Lower Mississippi-Gulf Water Science Center (LMG) is aggregating all aquifer test results from Alabama, Arkansas, Louisiana, Mississippi, and Tennessee into a single dataset that is publicly available in a machine-readable format. This dataset contains information and results from 2,245 aquifer tests compiled for aquifers located in Arkansas, Louisiana, and Mississippi. Descriptive statistics for the December 2020... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Aquifer, Aquifer Test, Arkansas, Conductivity, Groundwater, All tags... Hydrogeology, Louisiana, Lower Mississippi-Gulf, Mississippi, Mississippi Alluvial Plain (MAP) Project, Permeability, Specific Capacity, Storage Coefficient, Transmissivity, USGS Science Data Catalog (SDC), Fewer tags Groundwater Quality Data of the Chicot aquifer system This dataset contains digitized groundwater quality data from 435 wells that are screened in the Chicot aquifer system. Reported values of interest included specific conductance, total dissolved solids, and chloride (Cl) concentration; other parameters and major/trace element concentrations were included if reported. Values listed as “NA” or “-9999” represent data that was not reported in the physical dataset. A concentration of 0 ppm or ppb represents a reported concentration of 0 and not a null value. Data were collected from scanned versions of well registration records obtained from the Louisiana Department of Natural Resources. Most well registration records may be accessed through Strategic Online Natural... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Geochemistry, LMG, Louisiana, Mississippi Embayment, USGS Science Data Catalog (SDC), All tags... Water Quality, geochemistry, groundwater, hydrology, water quality, Fewer tags Use of dye-tracing to delineate the recharge area of Manitou Cave, Alabama, towards assessing sensitive stygobiont habitat In 2019, dye tracing investigations were conducted near Manitou Cave in Dekalb County, northeast Alabama. The purpose of the dye tracing was to delineate a recharge area for the stream in Manitou Cave, a 1.7-kilometer-long stream cave and the only known habitat for the Manitou Cavesnail (Antroribus breweri). In 2010, the U.S. Fish and Wildlife Service was petitioned by the Center for Biological Diversity to federally list the Manitou Cavesnail. However, before any listing or vulnerability designation can occur, more knowledge was required, specifically regarding potential threats to the snail. With regards to the Manitou Cavesnail, this required delineating a recharge for the stream in Manitou Cave in order to determine... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama, Antroribus breweri, Aquatic Biology, Dekalb County, Fort Payne, All tags... Hydrology, Lookout Mountain, Lower Mississippi-Gulf, Manitou Cave, Manitou Cave of Alabama, U.S. Fish and Wildlife Service, USGS Science Data Catalog (SDC), Water Resources, Wildlife Biology, biota, cave, cave biota, cave snail, dye tracing, environment, fluorescent dyes, groundwater and surface-water interaction, groundwater flow, groundwater tracing, inlandWaters, karst, karst, karst hydrogeology, karst topography, Fewer tags Dye tracing data related to karst hydrologic processes in carbonate fensters of the western Great Smoky Mountains Dye tracing investigations were conducted in Cades Cove and Tuckaleechee Cove, two carbonate fensters in the western Great Smoky Mountains. These investigations were conducted as part of a two-year study examining the karst hydrology in the carbonate fensters. Main objectives of the dye tracing investigations were to determine resurgences for cave systems, delineate recharge areas for major springs, and to compare travel times from sink (dye injection point) to resurgence (monitoring site) for the two coves. Over the two-year study period (2017-2018), four different rounds of dye injections were completed, and each round had four dye injection locations, with the exception of the fourth round in September 2018,... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Abrams Creek, Appalachian Mountains, Blount County, Cades Cove, Great Smoky Mountains, All tags... Great Smoky Mountains National Park, Hydrology, Lower Mississippi-Gulf, National Park Service, Short Creek, Tennessee, Tuckaleechee Cove, USGS Science Data Catalog (SDC), Water Resources, cave, environment, fenster, fluorescent dyes, geoscientificInformation, groundwater and surface-water interaction, groundwater tracing, hydrogeology, inlandWaters, karst, karst, karst groundwater, karst hydrogeology, karst topography, recharge area, springs, Fewer tags Annual average recharge rates across the CONUS, 2000-2013 This dataset includes 800m resolution long-term average estimates of recharge rates over the time period from 2000-2013 and annual estimates for the individual years. These estimates were developed with new empirical regressions for (1) surface runoff data generated from a USGS-developed hydrograph separation program (PART) run on streamflow data from 1509 gaged watersheds as a function of surficial geology type (USGS), precipitation (PRISM), and soil hydraulic conductivity (STATSGO); and (2) long-term evapotranspiration from water balance estimates at 679 gages as a function of land cover (NLCD), precipitation (PRISM), and maximum, minimum, and mean daily temperature (PRISM). The recharge quantites close the water... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Annual average evapotranspiration rates across the CONUS, 2000-2013 This dataset includes 800m resolution long-term average estimates of evapotranspiration (ET) over the time period from 2000-2013 and annual estimates for the individual years. These estimates were developed with a new empirical regression for long-term water balance ET data at 679 gaged watersheds as a function of land cover (NLCD), precipitation (PRISM), and maximum, minimum, and mean daily temperature (PRISM). A separate map is also included of evapotranspiration estimated over open-water areas from the empirical Meyer 1944 mass transfer equation, as a function of wind speed (gridMET data set, www.climateengine.org), temperature (PRISM), and dewpoint temperature data (PRISM). The annual and long-term average evapotranspiration... Categories: Collection, Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Hydrogeologic Aquifer Test dataset, Lower Mississippi-Gulf Water Science Center, March 2022 Since the 1940's, commercial, academic and government hydrologists have used aquifer tests to estimate the hydrogeologic properties of an aquifer near test wells. Results from these tests are recorded in various files, databases, reports, and scientific publications. The U.S. Geological Survey (USGS), Lower Mississippi-Gulf Water Science Center (LMG) is aggregating all hydrogeologic aquifer test results from Alabama, Arkansas, Louisiana, Mississippi, and Tennessee into a single dataset that is publicly available in a machine-readable format. The hydrogeologic values presented in the Mar2022 edition of the LMG-Hydrogeologic Test Dataset were estimated by Douglas Carlson, PhD, with the Louisiana Geological Survey... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Aquifer, Aquifer Test, Conductivity, Groundwater, Hydrogeology, All tags... Louisiana, Mississippi Alluvial Plain (MAP) Project, Permeability, Specific Capacity, Storage Coefficient, Transmissivity, USGS Science Data Catalog (SDC), Fewer tags Dye tracing dataset for Big Creek watershed, Newton County, Arkansas This data release pertains to a seepage investigation and dye tracing study conducted in the Big Creek watershed of Newton County, Arkansas. The dye tracing dataset consists of geospatial files of monitoring sites, dye injection location, and dye flow paths. Hydrologic systems in karst environments have a high degree of interconnectivity between surface water and groundwater systems. Because of this interconnectivity, activities which occur on the surface in karst environments have a direct impact on the water quality and quantity of karst groundwater. The Ozark Plateaus Physiographic region (Ozarks) of northern Arkansas and southern Missouri is an extensive karst area where many of the karst flow systems are recharged... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Arkansas, Big Creek, Buffalo National River, Buffalo River, Left Fork Big Creek, All tags... Newton County, Ozarks, Searcy County, dye tracing, fluorescent dye, freshwater ecosystems, geoscientificInformation, groundwater, groundwater, groundwater and surface-water interaction, groundwater tracing, hydrogeology, inlandWaters, karst, karst hydrology, seepage studies, springs (hydrographic), Fewer tags 1 2 »