Observation and analysis of hydrodynamics in a tidal creek at the Chongming Dongtan salt marsh.

Xin, Pei, Jin, Guangqiu, Li, Ling and Song, Zhi-yao (2009) Observation and analysis of hydrodynamics in a tidal creek at the Chongming Dongtan salt marsh.. Shui Kexue Jinzhan (Advances in Water Sciences), 20 1: 74-79.

Author Xin, Pei
Jin, Guangqiu
Li, Ling
Song, Zhi-yao
Title Observation and analysis of hydrodynamics in a tidal creek at the Chongming Dongtan salt marsh.
Journal name Shui Kexue Jinzhan (Advances in Water Sciences)   Check publisher's open access policy
ISSN 1001-6791
Publication date 2009-01
Year available 2009
Sub-type Article (original research)
Volume 20
Issue 1
Start page 74
End page 79
Total pages 6
Place of publication China
Publisher China Water Power Press
Collection year 2010
Language chi
Subject 960503 Ecosystem Assessment and Management of Coastal and Estuarine Environments
090702 Environmental Engineering Modelling
C1
Abstract Based on the multiple observation methods, we conducted a field study at the Chongming Dongtan salt marsh in July 2007. The collected data is analysed systematically in this paper. The observation results show that (1) Time variation of the creek water level at field site is different from that of the coastal sea, which might be affected by the damping of the creek and marsh surface. The rising phase is steeper than the falling phase one. During the ebb period of the creek current, the rise of the local water table is not likely related to the tidal water entering creek. It banks up while the ebb creek water met the rising tidal water. (2) Wind plays an important role in hydrodynamics of the salt marsh1 While the tidal wave is entering inner marsh, the shoreward wind will updrive water table compared with the offshore wind. (3) The creek current velocity is not strongly related to the rate of water level changes in the creek or the rate of the coastal tide fluctuation. And (4) the wetted cross-sectional area of the creek is relatively small, while little water is in the creek. Once the reversal creek current occurs, one creek current velocity surge turns up. Due to the expansion of the wetted cross-sectional area, a creek current velocity surge exhibits as the creesk water spills out to marsh surface. The creek water level descreases slowly during the ebb tide. No creek current velocity surge presents as the marsh surface water flows into the creek. Finally, this paper summarizes the factors affecting hydrodynamics in the salt marsh, and gives the suggestions on the future works.
Keyword Salt marsh
Tidal creek
Observation
Chonming Dongtan salt marsh
Hydrodynamic process
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Civil Engineering Publications
 
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Created: Wed, 07 Apr 2010, 15:24:42 EST by Jeannette Watson on behalf of School of Civil Engineering