Drag force due to vegetation in mangrove swamps

@article{Mazda1997DragFD,
  title={Drag force due to vegetation in mangrove swamps},
  author={Yoshihiro Mazda and E. Wolanski and B. King and A. Sase and Daisuke Ohtsuka and M. Magi},
  journal={Mangroves and Salt Marshes},
  year={1997},
  volume={1},
  pages={193-199}
}
Field studies of tidal flows in largely pristine mangrove swamps suggestthat the momentum equation simplifies to a balance between the water surfaceslope and the drag force. The controlling parameter is the vegetation lengthscale LE, which is a function of the projected area ofmangrove vegetation and the volume of the vegetation. The value ofLE varies greatly with mangrove species and water depth. It isfound that the drag coefficient is related to the Reynolds number Re definedusing LE. The… Expand
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References

SHOWING 1-10 OF 10 REFERENCES
Analysis of Flow through Vegetation
The Manning n value is quantitatively evaluated for flow in heavily vegetated channels. Momentum analysis shows that the composite n value as a function of flow depth is dependent on the bottomExpand
Tidal asymmetry in mangrove creeks
We model the dynamics of a tidal creek — mangrove swamp system. In the creek, a tidal asymmetry prevails. The ebb flow dominance at spring tides helps flush out the coarse sediment from the creek.Expand
Overland flow in wetlands: vegetation resistance.
Emergent wetland vegetation frequently provides most of the resistance to flow of surface water. Stems are typically spaced many diameters apart. Therefore, fluid friction should be computed fromExpand
Hydrodynamics of a tidal creek-mangrove swamp system.
TLDR
It is shown that a net down-stream longitudinal current through mangrove swamps exists and is responsible for rapidly carrying away organic detritus to the ocean, thereby enhancing the export of nutrients from mangroves swamps. Expand
Flume observations on flow dynamics in Zostera marina (eelgrass) beds
Flow dynamics in Zostera marina L. (eelgrass) were studied in a large seawater flume. Velocity and turbulence intensity profiles were measured at 3 free-stream flow velocities (5. 10 and 20 cm S-'),Expand
Tidal export of particulate organic matter from a Northern Australian mangrove system
Particulate carbon and nitrogen exports from a north Queensland mangrove system are estimated. Mangrove litter, flushed by tidal action at a rate of 10 kg C ha −1 day −1 , represents the majorExpand
A preliminary evaluation of wave attenuation by four species of seagrass
TLDR
Seagrasses are approximately equal to saltmarshes in reducing wave energy on a unit distance basis, but only when water depth is scaled to plant size. Expand
Arrangement of Swamp Forests and Landforms of the Alluvial Plain in the Lower Nakama River, Iriomote Island, Ryukyu Archipelago, Japan
The alluvial plain along the lower Nakama River on Iriomote Island can be divided from the shore landward into the following four sections: 1) a section consisting of the estuary, the coast of whichExpand
Introduction of fluid mechanics
A fluid is a substance in which the constituent molecules are free to move relative to each other. Conversely, in a solid, the relative positions of molecules remain essentially fixed underExpand
The Ecology of Mangroves