Variations in sand storage measured at monumented cross sections in the Colorado River between Glen Canyon Dam and Lava Falls Rapid, northern Arizona, 1992-99

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Title Variations in sand storage measured at monumented cross sections in the Colorado River between Glen Canyon Dam and Lava Falls Rapid, northern Arizona, 1992-99
Creator Flynn, Marilyn E.; Hornewer, Nancy J.
Subject Sediment control; Sediment transport; Water -- Analysis; Hydrological forecasting; Hydrology; Water -- Air entrainment
Spatial Coverage Colorado River (Wyo.-Utah); Colorado River (Colo.-Mexico); Glen Canyon (Utah and Ariz.); Colorado; Utah; Arizona
Description Bed elevations were measured at 131 monumented cross sections in the Colorado River between Glen Canyon Dam and Lava Falls Rapid from June 1992 to September 1999 to provide data on channel sand storage. This report documents the location of the 131 monumented cross sections, dates of measurements for all cross sections, methods of data collection and processing, and spatial and temporal variation and variability in changes in cross-sectional area for selected cross sections. Additionally, data were analyzed to determine if changes in sediment storage could be related to main channel flow conditions and tributary sediment inputs. Most of the cross sections showed a limited capacity, both in terms of amount and residence time, to store sediment. Data for 83 of the 131 cross sections were comprehensive and complete, and were used for analyses in this report. This data set is referred to as the primary data set. Of these 83 cross sections, 19 had a net gain in stored sediment, 61 had a net loss of stored sediment, and 3 had no change in stored sediment for the period of data collection, excluding data collected during the high release from Glen Canyon Dam in 1996. A subset of the primary data set consisting of the sections downstream from the Paria and Little Colorado Rivers with measurements made on or nearly on the same day, referred to as the matching-date data set, was used to explore the effects of controlled flows and tributary flows on the changes in cross-sectional area. The matching-date data set consists of data from 57 cross sections. Of these 57 cross sections, 1 had a net gain in stored sediment, 55 had a net loss of stored sediment, and 1 had no change in stored sediment. Results of the analysis did not show that changes in cross-sectional area were strongly related to main channel flow conditions or tributary sediment inputs.
Publisher U.S. Geological Survey
Contributors Grand Canyon Monitoring and Research Center
Date 2003
Type Text
Format application/pdf
Digitization Specifications pdf file copied from USGS website (http://water.usgs.gov/pubs/wri/wri034104/). Uploaded into CONTENTdm version 3.7.
Identifier http://water.usgs.gov/pubs/wri/wri034104/
Source Flynn, Marilyn E.; Hornewer, Nancy J., Variations in sand storage measured at monumented cross sections in the Colorado River between Glen Canyon Dam and Lava Falls Rapid, northern Arizona, 1992-99, Tucson, Arizona: U.S. Geological Survey Water-Resources Investigations Report 2003-4104, 39 p.
Language eng
Rights Management Public Domain, Courtesy of the USGS
Holding Institution University of Utah
Metadata Cataloger Kristin Willmore
ARK ark:/87278/s63x85kg
Setname wwdl_er
Date Created 2005-08-10
Date Modified 2005-08-10
ID 1145859
Reference URL https://collections.lib.utah.edu/ark:/87278/s63x85kg
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