TY  - JOUR
PY  - 1994//
TI  - Storm surge mitigation through vegetation canopies
JO  - Natural hazards
A1  - Danard, M. B.
A1  - Murty, T. S.
SP  - 155
EP  - 166
VL  - 9
IS  - 1-2
N2  - The paper of Reid and Whitaker (1976) on the effects of a vegetation canopy on flow of water is re-examined. Their assumptions on the equality of various drag coefficients are replaced by more realistic calculations. A new method for calculating wind stress on water is presented for the case when the vegetation extends above the water surface. For the case of vanishingly small water depth, it is shown that the horizontal stress is approximately constant in the vertical. This results in a diagnostic relationship for the water current as a function of the wind stress and bottom roughness. A new expression for the vertically averaged frictional force per unit mass is derived on the assumption that the friction velocity varies linearly with height. The vertical rate of change of friction velocity depends on the mean water current, the wind stress, the bottom roughness, and the water depth. This work has a possible application in the mitigation of storm surges.<p /> <p>Language: en</p>
LA  - en
SN  - 0921-030X
UR  - http://dx.doi.org/10.1007/BF00662596
ID  - ref1
ER  -