Calcium, magnesium and total dissolved solids data as well as modeled salinity and mass balance estimates for Lake Powell, 1952-2017

These data were compiled to quantify the role of Lake Powell in modulating salinity and reducing overall salt flux from the Upper Colorado River Basin downstream. In addition, these data were used to infer summertime calcite precipitation in Lake Powell (the major proposed sink for salt within the system). The Lake Powell Calcium Magnesium data contains summertime surface water calcium and magnesium concentrations along three transects that span the two major inflows to Lake Powell and the region of Lake Powell closest to the dam. The Modeled Salinity data was used to compare measured total dissolved solid concentrations at Lees Ferry to the instantaneous flow-weighted concentration of total dissolved solid entering the reservoir at any given time. The NWIS-Weighted Inflow Salinity data was used to compare total dissolved salt concentrations made by the Lake Powell Water Quality Monitoring Program to those inferred from upstream gaged sites contained in the National Water Information System. The WRTDS-Output Mass Balance data presents annual mass balance estimates for total dissolved solids, sulfate, bicarbonate, calcium, and chloride in Lake Powell including raw results from Weighted Regressions on Time, Discharge and Season (WRTDS) modeling and estimates of changes in annual reservoir storage.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:5d9fb8f1e4b036616295018f
metadata_type geospatial
modified 20200827
old-spatial -111.75, 36.7, -109.2, 39.1
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 6fce9f6405556a4e7a2744823304d6f6fb9d387c
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-111.75, 36.7], [-111.75, 39.1], [ -109.2, 39.1], [ -109.2, 36.7], [-111.75, 36.7]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • alkalinity
  • amerigeo
  • amerigeoss
  • arizona
  • bicarbonates
  • calcite
  • calcium
  • chemical-properties
  • chloride
  • ckan
  • colorado-river
  • geo
  • geoss
  • green-river
  • hydrology
  • inlandwaters
  • lake-powell
  • lees-ferry
  • mass-balance
  • national
  • north-america
  • reservoirs
  • salinity
  • san-juan-river
  • san-rafael-river
  • sulfates
  • surface-water-quality
  • total-dissolved-solids
  • united-states
  • usgs-5d9fb8f1e4b036616295018f
  • utah
  • water-chemistry
  • water-resources
  • water-salinity
  • weighted-regressions-on-time-discharge-and-season
  • wrtds
isopen False
license_id notspecified
license_title License not specified
maintainer Bridget R Deemer
maintainer_email bdeemer@usgs.gov
metadata_created 2025-11-21T20:58:47.831578
metadata_modified 2025-11-21T20:58:47.831582
notes These data were compiled to quantify the role of Lake Powell in modulating salinity and reducing overall salt flux from the Upper Colorado River Basin downstream. In addition, these data were used to infer summertime calcite precipitation in Lake Powell (the major proposed sink for salt within the system). The Lake Powell Calcium Magnesium data contains summertime surface water calcium and magnesium concentrations along three transects that span the two major inflows to Lake Powell and the region of Lake Powell closest to the dam. The Modeled Salinity data was used to compare measured total dissolved solid concentrations at Lees Ferry to the instantaneous flow-weighted concentration of total dissolved solid entering the reservoir at any given time. The NWIS-Weighted Inflow Salinity data was used to compare total dissolved salt concentrations made by the Lake Powell Water Quality Monitoring Program to those inferred from upstream gaged sites contained in the National Water Information System. The WRTDS-Output Mass Balance data presents annual mass balance estimates for total dissolved solids, sulfate, bicarbonate, calcium, and chloride in Lake Powell including raw results from Weighted Regressions on Time, Discharge and Season (WRTDS) modeling and estimates of changes in annual reservoir storage.
num_resources 2
num_tags 36
title Calcium, magnesium and total dissolved solids data as well as modeled salinity and mass balance estimates for Lake Powell, 1952-2017