Limits of downstream hydraulic geometry

Research Article| October 01, 2004 Limits of downstream hydraulic geometry Ellen Wohl Ellen Wohl 1Department of Geosciences, Colorado State University, Fort Collins, Colorado 80523, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Ellen Wohl 1Department of Geosciences, Colorado State University, Fort Collins, Colorado 80523, USA Publisher: Geological Society of America Received: 15 Apr 2004 Revision Received: 24 Jun 2004 Accepted: 29 Jun 2004 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2004) 32 (10): 897–900. https://doi.org/10.1130/G20738.1 Article history Received: 15 Apr 2004 Revision Received: 24 Jun 2004 Accepted: 29 Jun 2004 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Ellen Wohl; Limits of downstream hydraulic geometry. Geology 2004;; 32 (10): 897–900. doi: https://doi.org/10.1130/G20738.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Adjustments to flow width, depth, and velocity in response to changes in discharge are commonly characterized by using downstream hydraulic geometry relationships. The spatial limits of these relationships within a drainage basin have not been systematically quantified. Where the erosional resistance of the channel substrate is sufficiently large, hydraulic driving forces presumably will be unable to adjust channel form. Data sets from 10 mountain rivers in the United States, Panama, Nepal, and New Zealand are used in this study to explore the limits of downstream hydraulic geometry relationships. Where the ratio of stream power to sediment size (Ω/D84) exceeds 10,000 kg/s3, downstream hydraulic geometry is well developed; where the ratio falls below 10,000 kg/s3, downstream hydraulic geometry relationships are poorly developed. These limitations on downstream hydraulic geometry have important implications for channel engineering and simulations of landscape change. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.