Patterns of potential sediment erosion in the Pearl River Estuary

Heise, B., Harff, J., Ren, J. and Liang, K. (2010) Patterns of potential sediment erosion in the Pearl River Estuary Journal of Marine Systems, 82 . S62-S82. DOI 10.1016/j.jmarsys.2010.02.006.

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The interrelations between tidal currents and grain size of sediment of the Pearl River Estuary (PRE), South China Sea, have been investigated. The current system has been described by numerical model data for wet and dry seasons. Measured data from samples have been used for the parameterisation of the fades of the uppermost sediments. These data were obtained by a sampling campaign carried out in the frame of the projects SEDPERL (Sedimentary facies and environment of the Pearl River Delta, Zhujiang-River, South China Sea) and PECAI (Pearl River Estuary related sediments as response to Holocene climate change and anthropogenic impact) as well as from local data basis. Based on a comparison of the critical shear velocity derived from sedimentary parameters and shear velocity obtained by modelled current data, erosion frequency, erosion direction, and erosion risk have been determined. (C) 2010 Elsevier B.V. All rights reserved.

Document Type: Article
Keywords: Erosion Erosion-Rose diagram Shear stress velocity Logarithmical velocity profile Pearl River Estuary incipient motion shear-stress bed shear transport waters threshold currents flows
Research affiliation: Kiel University
Refereed: No
DOI etc.: 10.1016/j.jmarsys.2010.02.006
ISSN: 0924-7963
Date Deposited: 22 Dec 2011 05:30
Last Modified: 08 Oct 2012 10:00

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