Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (334 KB)

Title: Hyporheic exchange along a river below a dam

Author: Marzadri, Alessandra; Tonina, Daniele; McKean, James A.; Tiedemann, Matt;

Date: 2012

Source: In: Mader, Helmut; Kraml, Julia, eds. Proceedings of the 9th International Symphosium on Ecohydraulics (ISE 2012); Vienna, Austria; 17-21 September 2012. Vienna, Austria: Institute of Water Management, Hydrology and Hydraulic Engineering. Online: http://www.ise2012.boku.ac.at/papers/16945_2.pdf.

Publication Series: Paper (invited, offered, keynote)

Description: Hyporheic exchange is an important mechanism for solute mixing between river waters and shallow groundwater in streambed sediment. The hyporheic zone also provides an important ecotone for benthic species, including macro-invertebrates, microorganisms, and parts of some fish life stages. Most hyporheic analyses are limited in scope and performed at the reach scale. This research investigates hyporheic flow induced by streambed topography at the valley-scale under different flow discharges. We use a pumping model to predict hyporheic exchange along a 37km long reach of the Deadwood River for different flow releases from Deadwood Reservoir and at different discharges from its tributaries. Hyporheic flow is primarily driven by near-bed pressure variations induced by flow and river geometry interaction in gravel bed rivers. We separate the contribution due to small-scale topography, which mainly affects dynamic head variations, and that of large-scale topography, which chiefly controls piezometric head variations. We model the former as head variations due to dune-like bedforms and the latter with the water surface elevation predicted in a 1-dimensional surface water hydraulic model. Superposition of these two energy-head components provides the boundary condition for modeling hyporheic flows, which are solved as Darcy's fluxes. In our study river, the hyporheic model shows that the mean hyporheic fluxes are mainly driven by small-scale streambed topography with limited effects of stream discharge.

Keywords: hyporheic exchange, river waters, groundwater, streambed sediment

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

XML: View XML

Citation:


Marzadri, Alessandra; Tonina, Daniele; McKean, James A.; Tiedemann, Matt. 2012. Hyporheic exchange along a river below a dam. In: Mader, Helmut; Kraml, Julia, eds. Proceedings of the 9th International Symphosium on Ecohydraulics (ISE 2012); Vienna, Austria; 17-21 September 2012. Vienna, Austria: Institute of Water Management, Hydrology and Hydraulic Engineering. Online: http://www.ise2012.boku.ac.at/papers/16945_2.pdf.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.