An investigation of momentum exchange parameterizations and atmospheric forcing for the Coastal Mixing and Optics Program
Name
42466460-MIT.pdf
Description
Full printable version
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3.95 MB
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Checksum (MD5)
963ca2d5919fd8d54c8a061cd27a658e
Author(s)
Martin, Michiko J
Advisor(s)
James B. Edson and Steven P. Andreson.
Date Issued
1998
Publisher
Massachusetts Institute of Technology
Abstract
This thesis presents an investigation of the influence of surface waves on momentum exchange. A quantitative comparison of direct covariance friction velocity measurements to bulk aerodynamic and inertial dissipation estimates indicates that both indirect methods systematically underestimate the momentum flux into developing seas. To account for wave-induced processes and yield improved flux estimates, modifications to the traditional flux parameterizations are explored. Modification to the bulk aerodynamic method involves incorporating sea state dependence into the roughness length calculation. For the inertial dissipation method, a new parameterization for the dimensionless dissipation rate is proposed. The modifications lead to improved momentum flux estimates for both methods.
Description
Thesis (S.M.)--Joint Program in Applied Ocean Physics and Engineering (Massachusetts Institute of Technology, Dept. of Ocean Engineering; and the Woods Hole Oceanographic Institution), 1998.
Includes bibliographic references (p. 77-83).
Subjects
/W.H.O.I. Joint Program Review Committee.
MIT Department
M.I.T./W.H.O.I. Joint Program Review Committee.
Massachusetts Institute of Technology. Department of Ocean Engineering
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