期刊
JOURNAL OF PHYSICAL OCEANOGRAPHY
卷 46, 期 7, 页码 2049-2061出版社
AMER METEOROLOGICAL SOC
DOI: 10.1175/JPO-D-15-0227.1
关键词
Circulation; Dynamics; Atmosphere-ocean interaction; Turbulence; Wave breaking; Waves; oceanic; Wind waves; Physical Meteorology and Climatology; Air-sea interaction
类别
资金
- Office of Naval Research under the Radiance in a Dynamic Ocean (RaDyO) DRI under the NOPP DRI Improving Wind Wave Predictions: Global to Regional Scales'' [N00014-06-1-0372, N00014-11-1-0168, N00014-06-1-0047, N00014-11-1-0054, N00014-10-1-0390]
- National Science Foundation [OCE-1537890]
- Directorate For Geosciences
- Division Of Ocean Sciences [1537890] Funding Source: National Science Foundation
A spectral framework for quantifying the geometric/kinematic and dynamic/energetic properties of breaking ocean waves was proposed by Phillips in 1985. Phillips assumed a constant breaking strength coefficient to link the kinematic/geometric breaking crest properties to the associated excess energy and momentum fluxes from the waves to the upper ocean. However, a scale-dependent (spectral) breaking strength coefficient is needed, but is unavailable from measurements. In this paper, the feasibility of a parametric mean effective breaking strength coefficient valid for a wide range of sea states is investigated. All available ocean breaking wave datasets were analyzed and complemented with wave model behavior. Robust evidence is found supporting a single linear parameter relationship between the effective breaking strength and wave age or significant wave steepness. Envisaged applications for the effective breaking strength are described.
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