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Location Folder Show Tree ROOT _ScienceBase Catalog 3DSC Alaska Science Center (ASC) Alkalic Igneous Centers of the Great Plains and Rocky Mountains: Data in Support of Critical Mineral Resource Studies AMMonitor: Remote wildlife monitoring for adaptive management Amphibian Research and Monitoring Initiative More... Filters Date Range Past year (24) Past month (1) Past week (0) Past day (0) Custom range... To   Search Extensions Citation (1) Shapefile (1) Types Map Service (40) OGC WFS Layer (40) OGC WMS Layer (40) OGC WMS Service (39) Shapefile (3) More... Contacts U.S. Geological Survey - ScienceBase Lower Mississippi-Gulf Water Science Center Sarah M Banks U.S. Geological Survey Virginia L McGuire More... Categories Data (18) Data Release - Revised (1) Publication (1) Tag Types Theme (52) Place (51) Harvest Set (27) USGS Scientific Topic Keyword (14) Tag Schemes USGS Thesaurus (14) None (20) Common geographic areas (12) N/A (4) Geographic Names Information System (GNIS) (3) ISO 19115 Topic Category (13) none (4) More... View Results as: JSON ATOM CSV Browse Folder

F04_wlc161820_Water-level change, spring to spring, 2016-18, 2018-20, 2016-20, Mississippi River Valley alluvial aquifer, in feet This dataset is a point shapefile of wells measured for the potentiometric surface maps of the Mississippi River Valley alluvial aquifer (MRVA) in Spring 2016, 2018, and 2020. The data provided for each well considered in the applicable potentiometric surface map are the water-level date, altitude [relative to the North American vertical datum of 1988 (NAVD88)], a useYYYY code (which is positive if the water level was used in the potentiometric surface map for that year), a use comment (which is populated for water levels not used), and the water-level change values, for 2016-18, 2018-20, and 2016-20 for water levels with positive useYYYY codes for the applicable years. The data provided for each streamgage considered... Tags: Arkansas, Illinois, Kentucky, Louisiana, Mississippi, All tags... Mississippi Alluvial Plain, Mississippi River Delta, Mississippi River Valley alluvial aquifer, Missouri, Tennessee, aquifers, biota, digital elevation models, groundwater, groundwater altitude, groundwater and surface-water interaction, groundwater level, groundwater levels, hydrogeology, inlandWaters, surface-water altitude, water-level change, Fewer tags F03_d2w2020_Depth to water, spring 2020, Mississippi River Valley alluvial aquifer, raster format, in feet This dataset is a raster surface, in feet, of the depth to water, spring 2020, Mississippi River Valley alluvial aquifer (MRVA). The raster cell size is 1,000 meters (3,280.8 ft). The raster was interpolated using (1) depth-to-water (GW_D2W) data from wells and (2) an assumed value of zero for depth to water at streamgages (SW_D2W) because the precise depth to groundwater at the streamgage is not known..The streamgage data is used only when it appears the regional aquifer and surface water are hydrologically connected. Tags: Arkansas, Illinois, Kentucky, Louisiana, Mississippi, All tags... Mississippi Alluvial Plain, Mississippi River Delta, Mississippi River Valley alluvial aquifer, Missouri, Tennessee, aquifers, biota, depth-to-water surface, digital elevation models, groundwater, groundwater altitude, groundwater and surface-water interaction, groundwater level, groundwater levels, hydrogeology, inlandWaters, surface-water altitude, Fewer tags Statistical predictions of groundwater levels and related spatial diagnostics for the Mississippi River Valley alluvial aquifer from the mmlMRVAgen1 statistical machine-learning software A multiple machine-learning model (Asquith and Killian, 2024) implementing Cubist and Random Forest regressions was used to predict monthly mean groundwater levels through time for the available years described in the metadata for the Mississippi River Valley alluvial aquifer (MRVA). The MRVA is the surficial aquifer of the Mississippi Alluvial Plain (MAP), located in the south-central United States. Employing two machine-learning techniques offered the opportunity to generate model and statistical error and covariance between them to estimate total uncertainty. Potentiometric surface predictions were made at the 1-kilometer grid scale using the National Hydrogeologic Grid (Clark and others, 2018). For a full description... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC) Reanalysis of the Medina/Diversion Lake System Water-Budget, with Estimated Recharge to Edwards Aquifer, San Antonio Area, Texas In 2004, a hydrologic water-budget analysis was conducted and the results published in the report, Water-Budget Analysis of Medina and Diversion Lakes and the Medina/Diversion Lake System, With Estimated Recharge to the Edwards Aquifer, San Antonio Area, Texas (SIR 2004-5209)(Slattery and Miller, 2004). This data release contains the hydrologic water-budget data used in a reanalysis of the data as well as the results of the reanalysis. The hydrologic water-budget data used was derived from selected columns of data found in table 5 of the report. The columns of selected data include the time period in which the data were collected, the number of days used to obtain the average groundwater outflow, the standard deviation... Categories: Data; Tags: Medina Lake, USGS Science Data Catalog (SDC), Water Resources, groundwater, recharge, All tags... water-budget, Fewer tags F01_d2w2016 Depth to water, spring 2016, Mississippi River Valley alluvial aquifer, raster format, in feet This dataset is a raster surface, in feet, of the depth to water, spring 2016, Mississippi River Valley alluvial aquifer (MRVA). The raster cell size is 1,000 meters (3,280.8 ft). . The raster was interpolated using (1) depth-to-water (GW_D2W) data from wells and (2) an assumed value of zero for depth to water at streamgages (SW_D2W) because the precise depth to groundwater at the streamgage is not known. The streamgage data is used only when it appears the regional aquifer and surface water are hydrologically connected. Tags: Arkansas, Illinois, Kentucky, Louisiana, Mississippi, All tags... Mississippi Alluvial Plain, Mississippi River Delta, Mississippi River Valley alluvial aquifer, Missouri, Tennessee, aquifers, biota, depth-to-water surface, digital elevation models, groundwater, groundwater altitude, groundwater and surface-water interaction, groundwater level, groundwater levels, hydrogeology, inlandWaters, surface-water altitude, Fewer tags Summary of basin characteristics for National Hydrography Dataset, version 2 catchments in the southeastern United States, 1950 - 2010 This dataset provides numerical and categorical descriptions of 48 basin characteristics for 956 basins with observed streamflow information and 9,314 ungaged basins coinciding with 12-digit hydrologic unit code (HUC12) pour points that drain to the Gulf of Mexico. Characteristics are indexed by National Hydrography Dataset (NHD) version 2 COMID (integer that uniquely identifies each feature in the NHD) and U.S. Geological Survey (USGS) station number for streamflow-gaging station, where applicable. The variables represent mutable and immutable basin characteristics and are organized by characteristic type: physical (5), hydrologic (6), categorical (12), climate (6), landscape alteration (7), and land cover (12).... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Alabama, Arkansas, Basin characteristics, Florida, Georgia, All tags... Gulf Coast, Gulf Coast, Louisiana, Mississippi, RESTORE, Tennessee, Texas, USGS Science Data Catalog (SDC), United States, categorical, network optimization, reference hydrology, streamflow processes, Fewer tags Heuristically-determined geospatial boundary of streams and rivers draining to the Gulf of Mexico in the south-central and southeastern United States, July 2018 Human alteration of waterways has impacted the minimum and maximum streamflow in more than 86% of monitored streams nationally and may be the primary cause for ecological impairment in river and stream ecosystems. Restoration of freshwater inflows can positively affect shellfish, fisheries, habitat, and water quality in streams, rivers, and estuaries. Increasingly, state and local decision makers and Federal agencies are turning their attention to the restoration of flows as part of a holistic approach to restoring water quality and habitat and protecting and replenishing living coastal and marine resources and the livelihoods that depend on them. In 2017, the U.S. Geological Survey (USGS) Lower Mississippi-Gulf... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Florida, Gulf Coast, Gulf Coast, Gulf of Mexico, All tags... Louisiana, Mississippi, RESTORE, Southeastern United States, Texas, USGS Science Data Catalog (SDC), environmental flow, network optimization, reference hydrology, streamflow alteration, trend analysis, Fewer tags Quality Assurance of Water-Level Records from Wells in the Chicot aquifer system in southwestern Louisiana Department of Natural Resources' Strategic Online Natural Resources Information System (SONRIS) The Louisiana Department of Natural Resources’ (LaDNR) Strategic Online Natural Resources Information System (SONRIS) is a repository for recent (1930–present) well information that includes date of completion, well construction, geology, and water level. Well information is provided by the well drillers during the permitting process and is updated regularly by LaDNR. This data set consists of well records that were drilled into or through the Chicot aquifer and associated aquifer units (200-foot sand of Lake Charles area; 500-foot sand of Lake Charles area; 700-foot sand of Lake Charles area; Chicot aquifer system surficial confining unit; Chicot aquifer, lower sand unit; Chicot aquifer, shallow sand unit; Chicot... Tags: Hydrology, USGS Science Data Catalog (SDC) Imputed daily salinity and associated covariates to support statistical modeling for 91 salinity monitoring sites in the northern Gulf of Mexico Imputed salinities from either salinity or specific conductance observations and covariate data in data structures deemed suitable for statistical modeling of salinity in near-coastal environments of the northern Gulf of Mexico are provided for 15 salinity groups. The data herein were created by the 'covardr2formodel.R' script of 'covESTUSAL software' (Asquith and others, 2023), which represents terminal decisions on variable setup and transformations. The design ideal is data downloaded from this data release would be used in some path of “input” within statistical modeling software. Copious documentation of the decision process for data assembly is provided by Asquith and others (2023). Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Estuary, Gulf of Mexico, Gulf of Mexico, Modeling, Salinity, All tags... USGS Science Data Catalog (SDC), Fewer tags Imputedsalt_MissS The dataset entitled “imputedsalt_MissS” holds data structures to be relayed to statistical modeling of salinity in near-coastal environments of the Northern Gulf of Mexico. The content therein is created by the ‘covardr2formodel.R’ script that represents terminal decisions on variable setup and transformations. The design ideal is that the content of this directory would be copied to some path of “input” within a model building repository. The table in this directory would be especially suitable for both (1) formal data releases supporting as needed interpretive publications and (2) simultaneous long-term storage as copies within a model building repository in some specific terminal decisions (variable transforms... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Estuary, Gulf of Mexico, Gulf of Mexico, Mississippi Sound, Modeling, All tags... Salinity, Fewer tags Imputedsalt_GalBa The dataset entitled “imputedsalt_GalBa” holds data structures to be relayed to statistical modeling of salinity in near-coastal environments of the Northern Gulf of Mexico. The content therein is created by the ‘covardr2formodel.R’ script that represents terminal decisions on variable setup and transformations. The design ideal is that the content of this directory would be copied to some path of “input” within a model building repository. The table in this directory would be especially suitable for both (1) formal data releases supporting as needed interpretive publications and (2) simultaneous long-term storage as copies within a model building repository in some specific terminal decisions (variable transforms... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Estuary, Galveston Bay, Gulf of Mexico, Gulf of Mexico, Modeling, All tags... Salinity, Fewer tags Generalized Additive Model This data release provides the data that support the findings in "Characterizing groundwater and surface-water interaction using hydrograph-separation techniques and groundwater-level data throughout the Mississippi Delta" by Killian and others (2019). This child item for the Generalized Additive Model includes GAMobs_0410_error data and metadata with the grid node coordinates in North American Datum of 1983 (NAD 83) and results, including error estimates for the Generalized Additive Model (GAM) used to estimate the difference in groundwater altitudes relative to NAD 83 for April 10th of 1980 and April 10th of 2016. The paper associated with the data release quantifies the spatial and temporal changes in baseflow... Categories: Data; Tags: MAP, Mississippi, Mississippi River Delta, effects of groundwater extraction, groundwater, All tags... groundwater, groundwater and surface-water interaction, groundwater level, groundwater pumping, hydrogeology, mathematical modeling, statistical modeling, Fewer tags (e1) Potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2016, raster format, in feet A potentiometric surface map for spring 2016 was created for the Mississippi River Valley alluvial (MRVA) aquifer, which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. Most of the wells were measured annually or one time, after installation, but some wells were measured more than one time in a year and a small number of wells were measured continually. Streamgages were typically operated continuously. The potentiometric surface map for 2016 was created as part of the U.S. Geological Survey (USGS) Water Availability and Use Science Program to support investigations that characterize... Tags: Arkansas, Illinois, Kentucky, LMG, Louisiana, All tags... Lower Mississippi Gulf Water Science Center, MAP, MRVA aquifer, Mississippi, Mississippi Alluvial Plain, Mississippi Alluvial Plain, Mississippi River Delta, Mississippi River Valley alluvial aquifer, Missouri, Tennessee, U.S. Geological Survey, U.S.Geological Survey, USGS, Water Availability and Use Science Program, aquifers, geoscientificInformation, ground water, groundwater, groundwater altitude, groundwater levels, inlandWaters, potentiometric surface, surface-water altitude, water table, Fewer tags Groundwater levels and other covariates useful for statistical modeling for the Mississippi River Valley Alluvial aquifer, Mississippi Alluvial Plain Groundwater-level data, in conjunction with attendant metadata and covariates (predictor variables) data, for the Mississippi River Valley alluvial aquifer (MRVA) are used to support statistical and process-based numerical modeling. This page represents a collection of groundwater-level data within the expanse of the Mississippi Alluvial Plain (MAP) (Painter and Westerman, 2018) and are derived from well-specific periods of record of discrete measurements and continuous water levels aggregated to daily statistics. The basic data structures are intended also to serve as interpretability standards for use by statistical software such as described by Asquith and Seanor (2019) and Asquith and others (2019). Tags: Arkansas, Louisiana, MAP, MAP, Mississippi, All tags... Mississippi Alluvial Plain, Mississippi Alluvial Plain, Mississippi River Valley Alluvial aquifer, Mississippi River Valley Alluvial aquifer, Missouri, Tennessee, USGS Science Data Catalog (SDC), groundwater, groundwater levels, Fewer tags Datasets used to map the potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2020 A potentiometric-surface map for spring 2020 was created for the Mississippi River Valley alluvial aquifer (MRVA), which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. The location and water-level altitude in feet for these wells and streamgages in spring 2020 are provided in this data release. The interpreted contours and raster of the potentiometric surface are also provided in this data release and in the associated report titled "Potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2020" and available at https://doi.org/10.3133/sim3478/. Tags: USGS Science Data Catalog (SDC) (c) Surface-water altitude data, from streamgages, considered for the potentiometric surface map, Mississippi River Valley alluvial aquifer, spring 2016 A potentiometric surface map for spring 2016 was created for the Mississippi River Valley alluvial (MRVA) aquifer, which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. Most of the wells were measured annually or one time, after installation, but some wells were measured more than one time in a year and a small number of wells were measured continually. Streamgages were typically operated continuously. The potentiometric surface map for 2016 was created as part of the U.S. Geological Survey (USGS) Water Availability and Use Science Program to support investigations that characterize... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Illinois, Kentucky, LMG, Louisiana, All tags... Lower Mississippi Gulf Water Science Center, MAP, MRVA aquifer, Mississippi, Mississippi Alluvial Plain, Mississippi Alluvial Plain, Mississippi River Delta, Mississippi River Valley alluvial aquifer, Missouri, Tennessee, U.S. Geological Survey, U.S.Geological Survey, USGS, Water Availability and Use Science Program, aquifers, geoscientificInformation, ground water, groundwater, groundwater levels, inlandWaters, potentiometric surface, surface-water altitude, water table, Fewer tags Observed and modeled daily streamflow values for 74 U.S. Geological Survey streamgage locations in the Trinity and Mobile-Tombigbee River basins in the southeast United States: 2000--2009 The data and R scripts contained in this data release are provided as support for a manuscript titled, "Copula theory as a generalized framework for flow-duration curve based streamflow estimates in ungaged and partially gaged catchments" (Worland and others, 2019) submitted to Water Resources Research. The dv_input.csv contains the measured daily streamflow values for 37 streamgages in the Mobile-Tombigbee River Basin, 4-digit hydrologic unit code (HUC4) 0316, and 37 gages in the Trinity River Basin, HUC4 codes 1201, 1202, 1203, and 1204. The coord_input.csv contains the coordinates and the basin area (squared meters) for the gages in each basin. The R scripts generate daily streamflow estimates using 16 different... Categories: Data; Tags: Alabama, Gulf Coast, Hydrology, Louisiana, Mississippi, All tags... QPPQ, Texas, USGS Science Data Catalog (SDC), copula, regionalization, Fewer tags Geospatial extent of the study area and additional geospatial buffer for Mobile and Perdido bays contributing watersheds in the southeastern United States The U.S. Geological Survey (USGS) Lower Mississippi-Gulf Water Science Center (LMGWSC) in collaboration with the U.S. Environmental Protection Agency and funded through the Resources and Ecosystems, Sustainability, Tourist, Opportunities, and Revived Economies of the Gulf Coast States Act (RESTORE Act) are conducting a multiyear multistate study to analyze the alteration and trends of streamflow delivery to the Gulf of Mexico; the results of of which are used in an OASIS model decision support tool (Hazen and Sawyer, New York, NY, USA). To fully develop the OASIS model, a geospatial polyline boundary delineating the Mobile and Perdido bays OASIS streamflow prediction model study area was created. The spatial extent... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Georgia, Gulf Coast, Lousiana, Mississippi, All tags... RESTORE, USGS Science Data Catalog (SDC), environmental flow, reference hydrology, streamflow alteration, Fewer tags Imputedsalt_TamBa The dataset entitled “imputedsalt_TamBa” holds data structures to be relayed to statistical modeling of salinity in near-coastal environments of the Northern Gulf of Mexico. The content therein is created by the ‘covardr2formodel.R’ script that represents terminal decisions on variable setup and transformations. The design ideal is that the content of this directory would be copied to some path of “input” within a model building repository. The table in this directory would be especially suitable for both (1) formal data releases supporting as needed interpretive publications and (2) simultaneous long-term storage as copies within a model building repository in some specific terminal decisions (variable transforms... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Estuary, Gulf of Mexico, Gulf of Mexico, Modeling, Salinity, All tags... Tampa Bay-Port Charlotte, Fewer tags (b) Groundwater altitude data, from driller-measured wells, considered for the potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2016 A potentiometric surface map for spring 2016 was created for the Mississippi River Valley alluvial (MRVA) aquifer, which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. Most of the wells were measured annually or one time, after installation, but some wells were measured more than one time in a year and a small number of wells were measured continually. Streamgages were typically operated continuously. The potentiometric surface map for 2016 was created as part of the U.S. Geological Survey (USGS) Water Availability and Use Science Program to support investigations that characterize... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Illinois, Kentucky, LMG, Louisiana, All tags... Lower Mississippi Gulf Water Science Center, MAP, MRVA aquifer, Mississippi, Mississippi Alluvial Plain, Mississippi Alluvial Plain, Mississippi River Delta, Mississippi River Valley alluvial aquifer, Missouri, Tennessee, U.S. Geological Survey, U.S.Geological Survey, USGS, Water Availability and Use Science Program, aquifers, geoscientificInformation, ground water, groundwater, groundwater altitude, groundwater levels, inlandWaters, potentiometric surface, water table, Fewer tags 1 2 3 »