Filters: partyWithName: Lower Mississippi-Gulf Water Science Center (X) > Types: OGC WMS Layer (X)

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Summary of decadal no-flow fractions and decadal L-moments of nonzero streamflow flow-duration curves for National Hydrography Dataset, Version 2 catchments in the southeastern United States, 1950 - 2010 Censored and uncensored generalized additive models (GAMs) are developed from 955 U.S. Geological Survey streamflow-gaging stations (streamgages) to predict decadal statistics of streamflow. The streamgages are located on streams draining to the Gulf of Mexico. Decadal statistics include no-flow fractions and selected L-moments of nonzero streamflow for six decades (1950s—2000s). These statistics represent metrics of decadal flow-duration curves (dFDCs) derived from about 10 million daily mean streamflows. The L-moments include the mean, coefficient of L-variation, and the third through fifth L-moment ratios. The models are fit using watershed properties such as basin area and slope, decadal precipitation and temperature... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Florida, Gulf Coast, Gulf Coast, Gulf of Mexico, All tags... Hydrology, Louisiana, Mississippi, RESTORE, Southeastern United States, Texas, USGS Science Data Catalog (SDC), environmental flow, network optimization, reference hydrology, streamflow alteration, trend analysis, Fewer tags Map of Study Area and Phytoplankton Taxonomy in Three North Louisiana Reservoirs: Cross Lake, Bayou D'Arbonne Lake, and Poverty Point Reservoir, June 2009-February 2011 This data release includes GIS shapefiles and metadata for location of the study area and phytoplankton taxonomy counts determined by Dr. Russel Rhodes, Faculty Emeritus, Department of Biology, Missouri State University, in three north Louisiana reservoirs: Cross Lake, Bayou D'Arbonne Lake, and Poverty Point Reservoir, June 2009-February 2011. These data and GIS coverages complement and support the findings in the companion report by Tollett and others (in review). Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bayou D'Arbonne Lake, LA, Cross Lake, LA, Hydrology, Louisiana (LA), Phytoplankton, All tags... Phytoplankton taxonomy, Poverty Point Reservoir, LA, USGS Science Data Catalog (SDC), blue-green algae, reservoir, Fewer tags Climate and stage observations and hydrologic model results for Sinking Pond at Arnold Engineering Development Complex, Tennessee This data release includes data-processing scripts, data products, and associated metadata for a study to recalibrate a hydrologic model for Sinking Pond, a 35-hectare seasonally flooded karst depression wetland located at Arnold Engineering Development Complex near Manchester, Tennessee. A hydrologic model for Sinking Pond was originally published by Wolfe and others (2004). That original model used daily climatic inputs from weather stations and was calibrated and validated using daily stage observations from Sinking Pond. These datasets began January 1, 1854 and October 1, 1992 (for climate and stage observations, respectively) and extended through September 30, 2002. Recalibration of the Sinking Pond hydrologic... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC), Water Resources Nutrient loading, flushing rate, and lake morphometry data used to identify trophic states in selected watersheds of the eastern and southeastern United States For State agencies and other water-resources managers, determining which waterbodies to allocate limited funds for protection and restoration while also maximizing cost benefit is challenging. This data release contains trophic state designations determined from secchi depth, and concentrations of chlorophyll a and microcystin at 232 lakes and reservoirs having a surface area of greater than 0.1 square kilometer in watersheds that drain to the Atlantic and eastern Gulf of Mexico coasts of the United States and in watersheds within the Tennessee River Basin. Estimates of nutrient loading (nitrogen and phosphorus, Hoos and others, 2013; Moorman and others, 2014) and flushing rates were combined with waterbody morphometry... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Connecticut, Florida, Georgia, Hydrology, All tags... Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Northeast, Pennsylvania, Phosphorus Loads, Rhode Island, SPARROW, SPAtially Referenced Regressions On Watershed attributes (SPARROW), South Carolina, Southeast, USGS Science Data Catalog (SDC), Vermont, Virginia, Water Quality, Water Resources, West Virginia, algae, blue-green algae, cyanobacteria, eutrophication, harmful algal blooms, microcystin, morphometry, nitrogen eutrophication, nutrient loading, phosphorous, total nitrogen, Fewer tags Topographic channel survey data for selected new culvert installation sites in the East Gulf Coastal Plain of Alabama As part of a cooperative study by the Alabama Department of Transportation (ALDOT) and the U.S. Geological Survey, topographic surveys of stream channel cross-sections, upstream and downstream of selected new culvert installations in the East Gulf Coastal Plain of Alabama, were conducted both before and after culvert construction. This dataset contains raw topographic data used to determine channel measurements for statistical analysis in the associated Scientific Investigations Report, Effects of culvert construction on streams and macroinvertebrate communities at selected sites in the East Gulf Coastal Plain of Alabama, 2010-19 (Pugh and Gill, 2021). To measure the effects that culvert construction may have on... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, East Gulf Coastal Plain, topographic Aerial imagery of selected new culvert installation sites in the East Gulf Coastal Plain of Alabama The Alabama Department of Transportation (ALDOT) and the U.S. Geological Survey (USGS) studied several sites in the northern East Gulf Coastal Plain of Alabama to investigate effects of newly installed box culverts on the natural conditions of the streams they are traversing (Pugh and Gill, 2021). Data collection for the study spanned approximately 10 years and included before-, during-, and after-construction phases of box culvert installations at selected stream sites. The objectives of the project were to (1) assess the degree and extent of changes in geomorphic conditions, suspended-sediment concentrations, turbidity, and benthic macroinvertebrate populations at selected small streams following box culvert installation... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: land-cover, East Gulf Coastal Plain, State of Alabama Biogeochemical data from microcosm experiments to evaluate treatment of acid-rock drainage in selected counties in Tennessee The U.S. Geological Survey, in cooperation with the Tennessee Department of Transportation, conducted an investigation of acid-rock drainage from road cuts in Tennessee during 2014-2015. The Devonian Chattanooga Shale contains disseminated pyrite and is a primary producer of acid-rock drainage (ARD) in Tennessee. One objective of the overall investigation was to attenuate ARD by manipulating the indigenous microbial community through different treatment injections. The scope of the study included establishing flow-through microcosms constructed with shale from the Chattanooga Shale formation rich in pyrite collected from an ARD site in Middle Tennessee. The microcosms were subjected to various treatments and evaluations... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hickman County, USGS Science Data Catalog (SDC), Williamson County, acid-rock drainage, geochemical processes, All tags... geochemistry, microbiology, pyrite, Fewer tags Water withdrawals by source and category in Louisiana Parishes, 2014–2015 Information concerning the availability, use, and quality of water in the 64 parishes of Louisiana is critical for water-supply management. In cooperation with the Louisiana Department of Transportation and Development, the U.S. Geological Survey (USGS) Lower Mississippi-Gulf (LMG) Water Science Center has been collecting, compiling, and publishing water-withdrawal and water-use information on a 5-year basis since 1960. The 5-year reports are available online at https://www.usgs.gov/centers/lmg-water/science/water-use-louisiana?qt-science_center_objects=0#qt-science_center_objects. The most current report is from the year 2015 (https://wise.er.usgs.gov/dp/pdfs/WaterUseinLouisiana_2015.pdf). This data release contains... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC) Potentiometric surface dataset of the Sparta-Memphis aquifer in Arkansas, January 2013 - May 2013 (ver. 1.2, June 2021) The U.S. Geological Survey (USGS), in cooperation with the Arkansas Natural Resources Commission, Arkansas Geological Survey, and the Union County Water Conservation Board, has monitored water levels as a part of an ongoing effort to provide information for management of the Sparta-Memphis aquifer. The USGS has produced reports, at various intervals, to describe groundwater conditions in the Sparta-Memphis aquifer. These datasets provide the locations of and groundwater-level altitudes from 306 wells that were used to construct a potentiometric contour surface of the Sparta-Memphis aquifer. Measurements were made from January through May 2013 and represent synoptic conditions. All wells were cased completely in... Categories: Data; Types: Map Service, OGC WMS Layer; Tags: Arkansas, Mississippi Embayment aquifer system, Sparta-Memphis Sand, USGS Science Data Catalog (SDC), aquifer, All tags... geoscientificInformation, groundwater, groundwater flow, groundwater level, hydrogeology, water resources, water well, Fewer tags Solar radiation for National Hydrography Dataset, version 2 catchments in the southeastern United States, 1950 - 2010 This study is based on contiguous direct normal irradiance information from the National Renewable Energy Laboratory. Specifically, these data represent both 12-month specific average and annual average daily total solar resource averaged over surface cells of 0.1 degrees in both latitude and longitude. Spacing is about 10 kilometers in size. Direct normal irradiance is the amount of solar radiation received per unit area. For more information on direct normal irradiance see Introduction to Micrometeorology (Arya, 2001) or Fundamentals of Atmospheric Physics (Salby, 1996). Following the metadata description by the National Renewable Energy Laboratory, these modeled data are based on hourly radiance images from geostationary... Categories: Data; 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 Trend analysis results for sites used in RESTORE Streamflow alteration assessments Daily streamflow discharge data from 139 streamgages located on tributaries and streams flowing to the Gulf of Mexico were used to calculate mean monthly, mean seasonal, and decile values. Streamgages used to calculate trends required a minimum of 65 years of continuous daily streamflow data. These values were used to analyze trends in streamflow using the Mann-Kendall trend test in the R package entitled “Trends” and a new methodology created by Robert M. Hirsch known as a “Quantile-Kendall” plot. Data were analyzed based on water year using the Mann-Kendall trend test and by climate year using the Quantile-Kendall methodology to: (1) identify regions which are statistically similar for estimating streamflow characteristics;... Categories: Data, Data Release - Revised; Types: Map Service, OGC WMS Layer; 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 Relationship between pond volume and pond stage (volume rating curve) for Sinking Pond This item contains a data file (.csv) and associated metadata document (.xml) for the relationship between pond volume and pond stage (i.e., the volume rating curve) for Sinking Pond. This relationship was used to transform simulated pond volume into simulated pond stage in the Sinking Pond hydrologic model. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arnold Engineering Development Complex, Sinking Pond, Tennessee, environment, hydrology, All tags... inlandWaters, wetland ecosystems, Fewer tags Elevation contours of beach topography and nearshore bathymetry of Lake Superior at Minnesota Point, Duluth, MN, from hydrographic survey August 2019 The elevation contours in this dataset have a 2-foot (ft) interval and were derived from a digital elevation model (DEM) of beach topography and nearshore bathymetry of Lake Superior at Minnesota Point, Duluth, Minnesota. The DEM has a 10-meter (32.8084 ft) cell size and was created from LiDAR data representing beach topography and sonar data representing bathymetry to a distance of approximately 1.3 kilometers (0.8 miles) offshore. LiDAR data were collected August 10, 2019 using a boat-mounted Optech ILRIS scanner and methodology similar to that described by Huizinga and Wagner (2019). Multi-beam sonar data were collected August 7-11, 2019 using an R2Sonic 2024 sonar unit and methodology similar to that described... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, DEM, Duluth, Great Lakes, Hydroacoustic, All tags... LAS, Lake Superior, LiDAR, Southwestern Lake Superior, Superior, XYZ, bathymetry, digital elevation models, elevation, inlandWaters, lidar, limnology, sonar, Fewer tags Bridge-site study data for selected Highway crossings in Mississippi, 2019 The U.S. Geological Survey (USGS) works closely with the Mississippi Department of Transportation (MDOT) to provide information to be used by the MDOT for design of highway-drainage structures. MDOT spends millions of dollars annually for highway construction. Streamflow records, hydrologic analyses of basins, and hydraulic analyses of flooding potential at proposed highway crossings help the MDOT to make more informed decisions on the use of highway construction funding. Flood-frequency and hydraulic characteristics at highway crossings are determined from historical flood-elevation data recovered by the USGS, cross-section data, and correlations with data from nearby gaging stations. Additional streamflow data... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Benton County, Choctaw County, Leake County, Mississippi, Pontotoc County, All tags... Rankin County, USGS Science Data Catalog (SDC), elevation, environment, geoscientificInformation, inlandWaters, location, oceans, transportation, Fewer tags Water-quality and phytoplankton data for Lake Pontchartrain and the western Mississippi Sound associated with operation of the Bonnet Carré Spillway, 2008–2020 The Bonnet Carré Spillway (BCS), located about 28 miles northwest of New Orleans, Louisiana, was constructed in the early 1930s as part of an integrated flood-control system for the lower Mississippi River Plain. The BCS is designed to divert water from the Mississippi River (MSR) into Lake Pontchartrain (LP), which then flows into Lake Borgne and the Mississippi Sound (MS Sound), thus relieving pressure on levees downstream. Opening of the spillway occurs when measured streamflow in the MSR at New Orleans exceeds approximately 1.25 million cubic feet per second, which normally occurs once a year in late spring. In 2019, for the first time, the spillway opened twice in one year; the first opening occurred between... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bay Saint Louis, Mississippi, Bonnet Carré Spillway, Lake Pontchartrain, Louisiana, Mississippi, All tags... Mississippi Sound, Mississippi Sound - Lake Borgne, USGS Science Data Catalog (SDC), Water Quality, algal blooms, algal species composition, harmful algal blooms, water quality, Fewer tags Geospatial data supporting assessments of streamflow alteration to support bay and estuary restoration in the Gulf States This geospatial dataset includes a one-point feature-class shapefile, one-polygon feature-class shapefile, and associated FGDC-compliant metadata to define 193 streamflow and 299 basin characteristics at 1,320 U.S. Geological Survey streamflow gaging stations. Sites included in the dataset either (1) drain to the Gulf of Mexico or (2) are adjacent to watersheds that flow to the Gulf of Mexico and are considered both physiographically similar and valuable for analysis. Drainage area to the sites varies from less than 1 to approximately 67,500 square miles. Data presented describe the streamflow regime (Rossman, 1990; Thompson and Archfield, 2014), climate (Daly and others, 2008), land use and land-use change (Sohl... Categories: Data Release - Revised; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC) Supporting data and model outputs for hydrologic alteration modeling in the Pearl and Pascagoula river basins Anthropogenic hydrologic alteration threatens the health of riverine ecosystems. This study assesses hydrologic alteration in the Pearl and Pascagoula river basins using modeled daily streamflow. Machine learning was used to identify locations that have undergone statistically significant streamflow alteration, quantify the volume of the alteration, and predict alteration using cubist models. Statistically significant alteration was determined by hypothesis testing. The pre- and post-alteration flow duration curves were used to calculate the net change across 60 years. Cubist models were developed for both basins to predict hydrologic alteration and to identify important basin characteristics. This data release... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Florida, Gulf Coast, Hydrology, Louisiana, All tags... Mississippi, RESTORE, Texas, USGS Science Data Catalog (SDC), United States, Water Resources, cubist, hydrologic alteration, machine learning, model tree, southeast, streamflow, streamflow alteration, Fewer tags Imputedsalt_MatLa The dataset entitled “imputedsalt_MatLa” 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, Matagorda-Lavaca Bay, Modeling, All tags... Salinity, Fewer tags Imputedsalt_PanHa The dataset entitled “imputedsalt_PanHa” 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, Florida Panhandle, Gulf of Mexico, Gulf of Mexico, Modeling, All tags... Salinity, Fewer tags Imputedsalt_SanAn The dataset entitled “imputedsalt_SanAn” 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... San Antonio Bay, Fewer tags « 1 2 3 4 5 6 »