Filters: Tags: Colorado River (X) > Categories: Data Release - Revised (X)

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Limnology data from Lake Powell, desert southwest USA (ver. 2.0, Sept. 2023) These data were compiled as part of a long-term (1964 - 2022) water quality monitoring program at Lake Powell. Objectives of our study were to release a consistent record of long-term water quality data. The 58-year limnology dataset captures some water quality parameters (temperature, salinity, major ions, total suspended solids) from reservoir filling to present day. It also contains a 38-year record of secchi depth, and a ~30-year record of nutrients, phytoplankton, and zooplankton assemblages. The data were collected from various sites within the Lake Powell reservoir and the Glen Canyon dam. Regular monthly sampling occurred at three sites near the dam and reservoir-wide sampling was generally conducted quarterly,... Categories: Data, Data Release - Revised; Tags: Arizona, Aztec Creek, Bridge Creek, Cathedral Canyon, Clear Creek, All tags... Colorado River, Dark Canyon, Davis Gulch, Dreissena bugensis, Escalante River, Face Canyon, Glen Canyon, Glen Canyon Dam, Glen Canyon National Recreation Area, Gunsight Canyon, Labyrinth Canyon, Lake Powell, Last Chance Canyon, Lees Ferry, Navajo Canyon, Rainbow Bridge, Red Canyon, Rock Creek Canyon, San Juan River, Sheep Canyon, USGS Science Data Catalog (SDC), Upper Colorado River Basin, Utah, Wahweap Bay, Warm Creek Bay, Warm Creek Bay Alternate, West Canyon, arid reservoir, chlorophyll a, data release, discrete sample, dissolved oxygen, field inventory and monitoring, field monitoring stations, inlandWaters, invasive bivalve, invasive species, laboratory methods, limnology, long-term ecological monitoring, long-term trends, major ions, nutrients, oxygen content (water), phytoplankton, plankton, profiles, reservoir, salinity, secchi depth, site visit, station location, total suspended solids, turbidity, water chemistry, water quality, water sampling, water temperature, zooplankton, Fewer tags Analysis of Escherichia coli, total recoverable iron, and dissolved selenium concentrations and loads for selected 303(d) listed segments in the Grand Valley, western Colorado, 1980–2018 (ver. 3.0, August 2021) The U.S. Geological Survey (USGS), in cooperation with the Grand Valley Drainage District and the Colorado Water Conservation Board, conducted a loading analysis for selected constituents and tributaries to the Colorado River in the Grand Valley, western Colorado, using data from 1991 to 2018, to characterize concentrations, stream loading, and load reductions for Escherichia coli, total recoverable iron, and dissolved selenium for stream segments on the State of Colorado 303(d) list of impaired waters. Escherichia coli, total recoverable iron, and dissolved selenium concentrations and streamflow data were compiled from the Water Quality Portal (WQP). The data were submitted to the WQP by the USGS, Colorado Department... Categories: Data Release - Revised; Tags: Colorado, Colorado River, E. coli, Grand Valley, Mesa County, All tags... USGS Science Data Catalog (SDC), environment, load analysis, selenium, streams, total maximum daily load, total recoverable iron, water quality, Fewer tags Southwestern Riparian Plant Trait Matrix, Colorado River, Grand Canyon, Arizona (ver. 2.0, January 2022) Trait-based approaches to vegetation analyses are becoming more prevalent in studies of riparian vegetation dynamics, including responses to flow regulation, groundwater pumping, and climate change. These analyses require species trait data compiled from the literature and floras or original field measurements. Gathering such data makes trait-based research time intensive at best and impracticable in some cases. To support trait-based analysis of vegetation along the Colorado River through Grand Canyon, a data set of 20 biological traits and ecological affinities for 179 species occurring in that study area was compiled. This diverse flora shares species with many riparian areas in the western USA and includes species... Categories: Data, Data Release - Revised; Tags: Arizona, Botany, Coconino County, Colorado River, Ecological tolerances, All tags... Ecology, Ecology, Freshwater Ecosystems, Functional traits, Geography, Grand Canyon National Park, Information Sciences, Lees Ferry, Mohave County, Riparian plant species, Southwestern United States, USGS Science Data Catalog (SDC), United States, Vascular Plants, Fewer tags Water Quality Data from Select Spring and Stream Sites and Water and Sediment Quality Data from the Colorado River and Major Tributaries in Grand Canyon, Northern Arizona (ver. 2.0, April 2024) This USGS Data Release represents water and sediment quality data collected in the Grand Canyon region of northern Arizona. There are 4 separate datasets associated with this Data Release: Water quality data from major Colorado River tributary monitoring sites in and near Grand Canyon from 2015 through 2022. Sediment quality data from the Colorado River and major tributary monitoring sites in and near Grand Canyon from 2015 through 2022. Water quality results from spring and stream sites in Grand Canyon that were sampled by U.S. National Park Service personnel in 2016 and 2017. Time series water quality results from select spring sites in Grand Canyon that were sampled using a Minisipper autosampler. Filtered... Categories: Data Release - Revised; Tags: Colorado River, Grand Canyon, Sediment Chemistry, Sediment Quality, U.S. National Park Service, All tags... USGS SW Monitoring Sites, USGS Science Data Catalog (SDC), Water Chemistry, Water Quality, breccia pipe, Fewer tags