Large-Amplitude Internal Solitary Waves Observed in the Northern South China Sea: Properties and Energetics
| Autor: | Yiing Jang Yang, Barry Ma, Frank S. Henyey, Ren-Chieh Lien |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Journal of Physical Oceanography. 44:1095-1115 |
| ISSN: | 1520-0485 0022-3670 |
| DOI: | 10.1175/jpo-d-13-088.1 |
| Popis: | Five large-amplitude internal solitary waves (ISWs) propagating westward on the upper continental slope in the northern South China Sea were observed in May–June 2011 with nearly full-depth measurements of velocity, temperature, salinity, and density. As they shoaled, at least three waves reached the convective breaking limit: along-wave current velocity exceeded the wave propagation speed C. Vertical overturns of ~100 m were observed within the wave cores; estimated turbulent kinetic energy was up to 1.5 × 10−4 W kg−1. In the cores and at the pycnocline, the gradient Richardson number was mostly KE nor the subsurface maximum of the along-wave velocity for shoaling ISWs, but does simulate the total energy and the wave shape. Including the background shear in the model results in the formation of a surface trapped core. |
| Databáze: | OpenAIRE |
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