Fred D Tillman

Supplemental Discrete Dissolved-Solids Data and Monthly Mean Dissolved-Solids Data for Lower Colorado River (1928-2016)

Monthly Mean Dissolved-Solids Concentration and Monthly Mean Dissolved-Solids Load Data Flow weighted monthly mean dissolved-solids concentrations (mg/L) data and monthly mean dissolved-solids load data from 1928-2016 were computed by USGS using raw data from the Bureau of Reclamation. These data were computed by USGS for all of the seven sites (listed below). Colorado River above Imperial Dam, AZ-CA, 09429490 (1976-2016) Colorado River at Lees Ferry, AZ, 09380000 (1947-2016) Colorado River at Northern International Boundary, above Morelos Dam, AZ, 09522000 (1961-2016) Colorado River below Hoover Dam, AZ-NV, 09421500 (1948-2016) Colorado River near Cisco, UT, 09180500 (1928-2016) Green River at Green River,...

Tags: USGS Science Data Catalog (SDC), Water Quality, Water Resources

SWB Model Results – Projected Climate Data – Monthly Results for Alluvial Basins in Arizona

This USGS Data Release represents Soil-Water Balance (SWB) groundwater infiltration modeling results for the alluvial basins in Arizona. The data release was produced in compliance with 'open data' requirements as a way to make the scientific data associated with USGS research efforts and publications available to the public. This dataset comprises SWB model results for the alluvial basins in Arizona summarized on a monthly basis, and there are 4 separate datafiles associated with this Data Release: SWB model results for the alluvial basins in Arizona of actual evapotranspiration (AET), summarized on a monthly basis from 1950 through 2099 SWB model results for the alluvial basins in Arizona of potential evapotranspiration...

SWB Model Results – Projected Climate Data – Monthly Results for LCRB in the U.S.

This USGS Data Release represents Soil-Water Balance (SWB) groundwater infiltration modeling results for the Lower Colorado River Basin (LCRB). The data release was produced in compliance with 'open data' requirements as a way to make the scientific data associated with USGS research efforts and publications available to the public. This dataset comprises SWB model results for the LCRB within the United States (US) summarized on a monthly basis, and there are 4 separate datafiles associated with this Data Release: SWB model results for the LCRB in the US of actual evapotranspiration (AET), summarized on a monthly basis from 1950 through 2099 SWB model results for the LCRB in the US of potential evapotranspiration...

Water Quality Data from Select Spring and Stream Sites in Grand Canyon, Northern Arizona

This USGS Data Release represents water and sediment quality data collected in the Grand Canyon region of northern Arizona. This dataset comprises water quality results from spring and stream sites in Grand Canyon that were sampled through a cooperative effort by U.S. National Park Service (NPS) personnel during 2016 and 2017. NPS personnel collected water samples from spring and stream sites in Grand Canyon. Water samples were filtered using a syringe and 0.45 µm filter and preserved with nitric acid. Filtered and preserved samples were analyzed by the USGS Geology, Geophysics, and Geochemistry Science Center Laboratory for a suite of elements using inductively coupled plasma - mass spectrometry (ICP-MS) methods...

Categories: Data

SWB Model Results – Projected Climate Data – Monthly Results for Grand Canyon Region

This USGS Data Release represents Soil-Water Balance (SWB) groundwater infiltration modeling results for the Grand Canyon region. The data release was produced in compliance with 'open data' requirements as a way to make the scientific data associated with USGS research efforts and publications available to the public. This dataset comprises SWB model results for the Grand Canyon region summarized on a monthly basis, and there are 4 separate datafiles associated with this Data Release: SWB model results for the Grand Canyon region of actual evapotranspiration (AET), summarized on a monthly basis from 1950 through 2099 SWB model results for the Grand Canyon region of potential evapotranspiration (PET), summarized...