Next Article in Journal
The Effects of Surface Debris Diversion Devices on River Hydrodynamic Conditions and Implications for In-Stream Hydrokinetic Development
Previous Article in Journal
Rainfall Enhances Vegetation Growth but Does the Reverse Hold?
Article Menu

Export Article

Open AccessArticle
Water 2014, 6(7), 2144-2163;

Seasonal Accumulation and Depletion of Local Sediment Stores of Four Headwater Catchments

Sierra Nevada Research Institute at the University of California, Merced, 5200 N Lake Rd., Merced, CA 95343, USA
Author to whom correspondence should be addressed.
Received: 1 May 2014 / Revised: 8 July 2014 / Accepted: 8 July 2014 / Published: 23 July 2014
Full-Text   |   PDF [2002 KB, uploaded 9 June 2015]   |  


Seasonal turbidity patterns and event-level hysteresis analysis of turbidity verses discharge in four 1 km2 headwater catchments in California’s Sierra Nevada indicate localized in-channel sediment sources and seasonal accumulation-depletion patterns of stream sediments. Turbidity signals were analyzed for three years in order to look at the relationships between seasonal turbidity trends, event turbidity patterns, and precipitation type to stream sediment production and transport. Seasonal patterns showed more turbidity events associated with fall and early to mid- winter events than with peak snow-melt. No significant turbidity patterns emerged for periods of snow melt vs. rain. Single event hysteresis loops showed clockwise patterns were dominant suggesting local sediment sources. In successive discharge events, the largest turbidity spike was often associated with the first but not necessarily the largest discharge event-indicating seasonal depletion of local sediment stores. In multi-peaked discharge events, hysteresis loops shifted from clockwise to linear or random patterns suggesting that localized sediment stores are being used up and sufficient flow energy must be reached to start entraining the more consolidated bank/bed sediment or that dominant sediment sources may be shifting to less localized areas such as hill slopes. A conceptual model with phases of accumulation and transport is proposed. View Full-Text
Keywords: hysteresis; sediment; snowmelt; storm event; turbidity hysteresis; sediment; snowmelt; storm event; turbidity

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Martin, S.E.; Conklin, M.H.; Bales, R.C. Seasonal Accumulation and Depletion of Local Sediment Stores of Four Headwater Catchments. Water 2014, 6, 2144-2163.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top