Tidal-scale hydrodynamics within mangrove swamps

被引：77

作者：

Mazda Y. ^{[1
]}

Kobashi D. ^{[2
]}

Okada S. ^{[3
]}

机构：

[1] School of Marine Science and Technology, Tokai University, Shizuoka 424-8610, 3-20-1, Shimizu-Orido

[2] Coastal Studies Institute, Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge

[3] Marine Science Department, Nippon Marine Enterprises, Ltd., C/O JAMSTEC, Yokohama, Kanagawa 237-0061, 2-15, Natsushima

来源：

Wetlands Ecology and Management | 2005年 / 13卷 / 6期

关键词：

Drag force; Eddy viscosity; Hydrodynamics; Mangrove; Reynolds Number; Tidal flow;

D O I：

10.1007/s11273-005-0613-4

中图分类号：

学科分类号：

摘要：

Both the drag force and the horizontal eddy viscosity play a dominant role in the tidal-scale hydrodynamics in mangrove wetlands. Using field observations and basic fluid mechanics laws, the drag coefficient and the coefficient of dynamic eddy viscosity are found to be predictable as a function of the Reynolds Number based on the characteristic length scale of the vegetation. The characteristic length scale of the vegetation varies greatly with vegetation species, vegetation density and tidal elevation. Both these coefficients decrease with increasing values of the Reynolds Number. At the low range of the Reynolds Number both these coefficients reach much higher values than those typical of vegetation-poor estuaries and rivers. Consequently, the tidal flow within mangrove areas depends to a large degree upon the submerged vegetation density that varies with the tidal stage. These findings may be applied also in other vegetated tidal wetlands, including salt marshes. © Springer 2005.

引用

页码：647 / 655

页数：8

共 27 条

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