Numerical Simulations of Internal Solitary Wave Evolution Beneath an Ice Keel
The deformation and evolution of internal solitary waves (ISWs) beneath an ice keel can enable potential diapycnal mixing and facilitate upper ocean heat transport, despite a poor understanding of the underlying physics and energetics of ISWs in Polar environments. This study aims to understand the...
Published in: | Journal of Geophysical Research: Oceans |
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Language: | English |
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AMER GEOPHYSICAL UNION
2022
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Online Access: | http://ir.qdio.ac.cn/handle/337002/178157 https://doi.org/10.1029/2020JC017068 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/178157 2023-05-15T14:52:33+02:00 Numerical Simulations of Internal Solitary Wave Evolution Beneath an Ice Keel Zhang, Peiwen Xu, Zhenhua Li, Qun You, Jia Yin, Baoshu Robertson, Robin Zheng, Quanan 2022-02-01 http://ir.qdio.ac.cn/handle/337002/178157 https://doi.org/10.1029/2020JC017068 英语 eng AMER GEOPHYSICAL UNION JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS http://ir.qdio.ac.cn/handle/337002/178157 doi:10.1029/2020JC017068 Arctic ocean Sea ice Warming climate Internal wave Mixing Heat transfer Oceanography LONG-RANGE PROPAGATION SEA-ICE VERTICAL DIFFUSION HEAT FLUXES TIDES BREAKING INSTABILITIES VARIABILITY GENERATION WATER 期刊论文 2022 ftchinacasciocas https://doi.org/10.1029/2020JC017068 2022-06-27T05:46:49Z The deformation and evolution of internal solitary waves (ISWs) beneath an ice keel can enable potential diapycnal mixing and facilitate upper ocean heat transport, despite a poor understanding of the underlying physics and energetics of ISWs in Polar environments. This study aims to understand the dynamic processes and mixing properties during the evolution of ISWs beneath ice keels in the Arctic Ocean using high-resolution, non-hydrostatic simulations. Ice keels can destabilize ISWs through overturning events. Consequently, the initial ISW disintegrates and transfers its energy into secondary smaller-scale waves. During the ISW-ice interaction, ISW-induced turbulent mixing can reach O(10(-3)) W/kg with a magnitude of resultant heat flux of O(10)W/m. Sensitivity experiments demonstrated that the ISW-ice interaction weakened as the ice keel depth decreased, and consequently, the resultant turbulent mixing and upward heat transfer also decreased. The ice keel depth was critical to the evolution and disintegration of an ISW beneath the ice keel, while the approximate ice keel shape had little effect. Our results provide an important but previously overlooked energy source for upper ocean heat transport in the Arctic Ocean. Report Arctic Arctic Ocean Sea ice Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Arctic Arctic Ocean Journal of Geophysical Research: Oceans 127 2 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Arctic ocean Sea ice Warming climate Internal wave Mixing Heat transfer Oceanography LONG-RANGE PROPAGATION SEA-ICE VERTICAL DIFFUSION HEAT FLUXES TIDES BREAKING INSTABILITIES VARIABILITY GENERATION WATER |
spellingShingle |
Arctic ocean Sea ice Warming climate Internal wave Mixing Heat transfer Oceanography LONG-RANGE PROPAGATION SEA-ICE VERTICAL DIFFUSION HEAT FLUXES TIDES BREAKING INSTABILITIES VARIABILITY GENERATION WATER Zhang, Peiwen Xu, Zhenhua Li, Qun You, Jia Yin, Baoshu Robertson, Robin Zheng, Quanan Numerical Simulations of Internal Solitary Wave Evolution Beneath an Ice Keel |
topic_facet |
Arctic ocean Sea ice Warming climate Internal wave Mixing Heat transfer Oceanography LONG-RANGE PROPAGATION SEA-ICE VERTICAL DIFFUSION HEAT FLUXES TIDES BREAKING INSTABILITIES VARIABILITY GENERATION WATER |
description |
The deformation and evolution of internal solitary waves (ISWs) beneath an ice keel can enable potential diapycnal mixing and facilitate upper ocean heat transport, despite a poor understanding of the underlying physics and energetics of ISWs in Polar environments. This study aims to understand the dynamic processes and mixing properties during the evolution of ISWs beneath ice keels in the Arctic Ocean using high-resolution, non-hydrostatic simulations. Ice keels can destabilize ISWs through overturning events. Consequently, the initial ISW disintegrates and transfers its energy into secondary smaller-scale waves. During the ISW-ice interaction, ISW-induced turbulent mixing can reach O(10(-3)) W/kg with a magnitude of resultant heat flux of O(10)W/m. Sensitivity experiments demonstrated that the ISW-ice interaction weakened as the ice keel depth decreased, and consequently, the resultant turbulent mixing and upward heat transfer also decreased. The ice keel depth was critical to the evolution and disintegration of an ISW beneath the ice keel, while the approximate ice keel shape had little effect. Our results provide an important but previously overlooked energy source for upper ocean heat transport in the Arctic Ocean. |
format |
Report |
author |
Zhang, Peiwen Xu, Zhenhua Li, Qun You, Jia Yin, Baoshu Robertson, Robin Zheng, Quanan |
author_facet |
Zhang, Peiwen Xu, Zhenhua Li, Qun You, Jia Yin, Baoshu Robertson, Robin Zheng, Quanan |
author_sort |
Zhang, Peiwen |
title |
Numerical Simulations of Internal Solitary Wave Evolution Beneath an Ice Keel |
title_short |
Numerical Simulations of Internal Solitary Wave Evolution Beneath an Ice Keel |
title_full |
Numerical Simulations of Internal Solitary Wave Evolution Beneath an Ice Keel |
title_fullStr |
Numerical Simulations of Internal Solitary Wave Evolution Beneath an Ice Keel |
title_full_unstemmed |
Numerical Simulations of Internal Solitary Wave Evolution Beneath an Ice Keel |
title_sort |
numerical simulations of internal solitary wave evolution beneath an ice keel |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2022 |
url |
http://ir.qdio.ac.cn/handle/337002/178157 https://doi.org/10.1029/2020JC017068 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_relation |
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS http://ir.qdio.ac.cn/handle/337002/178157 doi:10.1029/2020JC017068 |
op_doi |
https://doi.org/10.1029/2020JC017068 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
127 |
container_issue |
2 |
_version_ |
1766323788004196352 |