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Filters Date Range Past year (1) Past month (1) Past week (0) Past day (0) Custom range... To   Search Types ArcGIS REST Map Service (2) ArcGIS Service Definition (2) Downloadable (2) Map Service (2) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Rebecca M Gorney Mark C Marvin-DiPasquale Water Resources Craig A Stricker New York Water Science Center More... Categories Data (2) Tag Types Theme (2) Place (2) USGS Scientific Topic Keyword (1) Harvest Set (2) CMS Non-theme Topics (1) CMS Themes (1) CMS Topics (1) Tag Schemes Project Keywords (1) USGS Thesaurus (1) Marine Realms Information Bank (MRIB) , USGS Thesaurus (1) Project Lakes (1) Common Geographic Areas (1) ISO 19115 Topic Category (1) None (1) More... View Results as: JSON ATOM CSV

Data for Biogeochemical and Physical Processes Controlling Mercury Methylation and Bioaccumulation in Lake Powell, Glen Canyon National Recreation Area, Utah and Arizona, 2014-2015 This dataset includes the field measurements and laboratory analyses of surface water, seston, and sediment collected from Lake Powell, within Glen Canyon National Recreation area (GLCA), during high flow (May-June 2014) and low flow (August 2015) conditions. The study area includes 12-13 sampling sites that follow a transect spanning the entire length of the reservoir from the Colorado River inflow to the Glen Canyon dam, as well as the San Juan River arm, the Escalante River arm and West Canyon. Bed sediment samples were analyzed for mercury speciation, methylmercury production and degradation rates, total reduced sulfur, iron speciation, organic content, and 16S rRNA gene templates as a proxy for microbial abundances.... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Environmental Health, Geochemistry, Lake Powell, Glen Canyon National Recreation Area, Utah and Arizona, USGS Science Data Catalog (SDC), Water Resources, All tags... aquatic ecosystems, bioaccumulation, biogeochemistry, limnology, mercury, reservoir, Fewer tags Vertical Profiles of Water Quality and Phytoplankton Data from Five Lakes in the Adirondack Park, New York State, 2021 This data release contains phytoplankton data and vertical profile measurements of water quality and light in oligotrophic (low nutrient) lakes within the Adirondack Park, New York State. Data were collected between June and October 2021 at five lakes. Four lake locations (Nearshore, Open Water, Layer, Bloom) were sampled representing one of four sample types (Bottom Sediment, Surface Water, Bloom Material, Layer). Water-quality field parameters (water temperature, dissolved-oxygen concentration and percent saturation, pH, specific conductance, turbidity, chlorophyll fluorescence, phycocyanin fluorescence, and fluorescent dissolved organic material) were measured at each sampling location from the surface to the... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Adirondack Park, Algal concentration, Blue Mountain Lake, Blue-green algae, Brant Lake, All tags... Chlorophyll-a, Contaminants, HABS, Cyanobacteria, Dissolved Oxygen, East Caroga Lake, Freshwater Ecosystems, Friends Lake, Harmful Algal Bloom, Limnology, New York, PAR, Phycocyanin, QW_ADK, Specific Conductance, Surface-Water Quality Monitoring, Turbidity, USGS Science Data Catalog (SDC), United States, Vertical Profile, Water Quality, Water Quality, Water Temperature, West Caroga Lake, algae, algal blooms, biota, elevation, freshwater (surface), hazards, inlandWaters, lake ecosystems, limnology, pH, phycology, phytoplankton, Fewer tags