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Phosphorus, nitrogen, carbon, calcium, pH, and dissolved oxygen data from incubations of Colorado River water and sediment and associated ambient river water measurements

Metadata Updated: October 28, 2023

Lake Powell retains most of the phosphorus that it receives, leading to downstream phosphorus limitation. These data were compiled to examine controls on phosphorus cycling below Lake Powell in the Colorado River and from storm inputs from the Paria River. Objectives of our study were to determine how several forms of phosphorus, both organic and inorganic, were cycled under varying dissolved oxygen concentrations and pH, reflecting the range of values observed in the river over the years. These data represent nitrogen, phosphorus, calcium, and carbon concentrations, water quality parameters (pH, dissolved oxygen, temperature), sediment composition, total protein, and extracellular enzyme activity (alkaline phosphatase). Additionally, these data contain some previously unpublished longer term continuous pH data from the Colorado River. These data were primarily collected in the summer of 2021, before, during, and immediately following incubations of three different sediment types with Colorado river water. Sediment and overlying water for incubations were collected at one time point from three sites: the Paria River near the confluence with the Colorado River, the Colorado River approximately 23 river kilometers below Glen Canyon Dam, and the Colorado River near its inflow to Lake Mead at the Pearce Ferry boat ramp. Data were collected by the Southwest Biological Science Center-Grand Canyon Monitoring and Research Center researchers. These ambient river water and sediment data can be used to describe chemical and biological conditions in the river and data from bottle incubations can be used to examine how changing laboratory conditions affect nutrient availability and cycling.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date July 19, 2023
Metadata Updated Date October 28, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date July 19, 2023
Metadata Updated Date October 28, 2023
Publisher U.S. Geological Survey
Identifier USGS:638a77c2d34ed907bf79090e
Data Last Modified 20230629
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id cd9f904d-fc9f-4bc3-af05-3f4ba150e3dc
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -114.02379,35.740126,-111.476798,36.965854
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 29e01ce2021d468822a0d2649d8645d210eb7e3917170e85054b0d46385e095f
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -114.02379, 35.740126, -114.02379, 36.965854, -111.476798, 36.965854, -111.476798, 35.740126, -114.02379, 35.740126}

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