Monitoring Of Coarse Sediment Inputs To The Colorado River In Grand Canyon

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Title Monitoring Of Coarse Sediment Inputs To The Colorado River In Grand Canyon
Creator Webb, Robert H.; Griffiths, Peter G.
Subject Sediment control; Sediments (Geology); Organic compounds; Debris avalanches
Spatial Coverage Colorado River (Colo.-Mexico); Colorado River (Wyo.-Utah); Colorado; Grand Canyon (Ariz.); Arizona; Utah
Description Coarse sediment (particles with an intermediate diameter greater than 64 mm) affects the primary components of the Colorado River ecosystem. The deposition of coarse sediment at tributary junctures builds large debris fans that constrict the river and form rapids. Debris fans, and the debris bars that develop below rapids, provide stable substrate for aquatic organisms, notably the alga Cladophora glomerata. The pool above and recirculating eddy below the debris fan effectively trap fine sediment for storage on the bed or in sand bars. Debris fans and debris bars form the fan-eddy complex that attracts humpback chub (Gila cypha), an endangered species. Monitoring the input of coarse sediment to the Colorado River ecosystem and its long-term redistribution by the river is critical to the understanding and management of these valued resources. This fact sheet presents an overview of methods for monitoring coarse sediment input and redistribution in Grand Canyon. These methods are discussed more thoroughly in Melis (1997), Melis and others (1994, 1997), and Webb and others (1999a, 1999b, 2000).
Publisher U.S. Geological Survey
Date 2001
Type Text
Format application/pdf
Digitization Specifications pdf file copied from USGS website (http://water.usgs.gov/pubs/fs/FS-019-01/). Uploaded into CONTENTdm version 3.7.
Identifier http://water.usgs.gov/pubs/fs/FS-019-01/
Source Webb, Robert H.; Griffiths, Peter G., Monitoring Of Coarse Sediment Inputs To The Colorado River In Grand Canyon, Tucson, Arizona: U.S. Geological Survey Fact Sheet 019-01, 4 p.
Language eng
Rights Management Public Domain, Courtesy of the USGS
Holding Institution University of Utah
Metadata Cataloger Kristin Willmore
ARK ark:/87278/s67h1hh5
Setname wwdl_er
Date Created 2005-08-10
Date Modified 2005-08-10
ID 1145889
Reference URL https://collections.lib.utah.edu/ark:/87278/s67h1hh5
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