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ToolsYang, Zhibin, Jing, Zhao and Zhai, Xiaoming (2023) Energy sinks for lee waves in the northern South China Sea. Journal of Geophysical Research - Oceans, 128 (1). ISSN 2169-9275
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Abstract
Recent observations report a discrepancy between observed energy dissipation rates and lee wave pressure flux predicted by linear theory in the Southern Ocean, raising the possibility that wave energy re-absorption by mean flows may be an important route to wave energy sink. Here we investigate the sink of lee waves in the northern South China Sea in a high-resolution nested model initialized with a synthetically-generated rough topography. Our results indicate that wave dissipation is the dominant sink of lee wave energy, with wave energy re-absorption being of secondary importance. The dominant direction of energy transfer is from mean flows to lee waves through vertical shear and horizontal strain of mean flows. A series of idealized experiments suggest that the weak wave energy re-absorption in the northern South China Sea is primarily due to the large Froude number there.
| Item Type: | Article |
|---|---|
| Additional Information: | Data availability statement: The model configuration files and snapshots are available online (https://doi.org/10.7910/DVN/M2QSGG). |
| Uncontrolled Keywords: | lagrangian filtering,lee waves,nested model,northern south china sea,wave dissipation,wave-mean flow interaction,oceanography,geophysics,geochemistry and petrology,earth and planetary sciences (miscellaneous),space and planetary science ,/dk/atira/pure/subjectarea/asjc/1900/1910 |
| Faculty \ School: | Faculty of Science > School of Environmental Sciences Faculty of Science > School of Natural Sciences |
| UEA Research Groups: | Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 09 Jan 2023 13:32 |
| Last Modified: | 06 Feb 2023 10:30 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/90477 |
| DOI: | 10.1029/2022JC019060 |
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