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Remote energy sources for mixing in the Indonesian Seas
Citation
Pang, C and Nikurashin, M and Pena-Molino, B and Sloyan, BM, Remote energy sources for mixing in the Indonesian Seas, Nature Communications, 13 Article 6535. ISSN 2041-1723 (2022) [Refereed Article]
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Copyright Statement
© 2022. The Authors. This article is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) License (https://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
DOI: doi:10.1038/s41467-022-34046-6
Abstract
The role of the Indonesian Seas in climate is attributed to the intense mixing observed throughout the region. Mixing cools the surface temperature and hence modifies the atmospheric convection centered over the region. Mixing also controls the heat exchange between the Pacific and Indian Oceans by transforming water-mass properties while they transit through the region. Mixing in the Indonesian Seas has long been identified to be driven locally by tides. Here we show that the observed mixing can also be powered by the remotely generated planetary waves and eddies. We use a regional ocean model to show that the Indonesian Seas are a sink of the energy generated in the Indian and Pacific Oceans. We estimate that 1.7 GW of the remotely generated energy enters the region across all straits. The energy flux is surface intensified and characterized by a convergence, implying dissipation and mixing, within the straits and along topography. Locally, energy convergence associated with this process is comparable in magnitude to tidal energy dissipation, which dominates the deep ocean.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | mixing, Indonesian Seas, eddies, Kelvin waves, Rossby waves, energy flux |
| Research Division: | Earth Sciences |
| Research Group: | Oceanography |
| Research Field: | Physical oceanography |
| Objective Division: | Environmental Policy, Climate Change and Natural Hazards |
| Objective Group: | Understanding climate change |
| Objective Field: | Climate change models |
| UTAS Author: | Pang, C (Mr Chengyuan Pang) |
| UTAS Author: | Nikurashin, M (Dr Maxim Nikurashin) |
| ID Code: | 154157 |
| Year Published: | 2022 |
| Funding Support: | Australian Research Council (DP210100643) |
| Deposited By: | Oceans and Cryosphere |
| Deposited On: | 2022-11-04 |
| Last Modified: | 2022-12-02 |
| Downloads: | 1 View Download Statistics |
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