Southwest Biological Science Center

U.S. Geological Survey
Data Series 251
Version 1.0

Water-Temperature Data for the Colorado River and Tributaries Between Glen Canyon Dam and Spencer Canyon, Northern Arizona, 1988–2005

By Nicholas Voichick and Scott A. Wright


photo of two workers wearing life belts standing on the rocks as the water flows past them.  One person holds an instrument about half a meter long
Photograph of the east bank of the Colorado River near river mile 61. The Yellow Springs Instruments multiparameter instrument shown in the center of the photograph is protected from abrasion inside of a perforated plastic sleeve and deployed in the river using coated steel cable (from figure 4).


The regulation of flow of the Colorado River by Glen Canyon Dam began in 1963. This resulted in significant changes to the downstream ecosystem of the Colorado River in Grand Canyon, contributing to the initiation of the Glen Canyon Environmental Studies program in 1982, followed by establishment of the Glen Canyon Dam Adaptive Management Program in 1996. This report describes a water-temperature dataset collected through these programs for the reach of the Colorado River and selected tributaries between Glen Canyon Dam and Spencer Canyon (approximately 261 river miles) in northern Arizona from 1988 to 2005. The primary purposes of the report are to summarize the methods of data collection, processing, and editing; to present summary statistics; and to make the data described in the report available.

Download this report as a 28-page PDF file (ds-251.pdf; 880 kB).

Download the hourly-temperature data as a .zip compressed file. This file opens into a folder that contains 22 Excel .xls files (; 18.7 MB compressed; 129 MB uncompressed)

For questions about the content of this report, contact Nicholas Voichick

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