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Rapid dissipation of a Loop Current eddy due to interaction with a severe Gulf of Mexico hurricane

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العنوان: Rapid dissipation of a Loop Current eddy due to interaction with a severe Gulf of Mexico hurricane
المؤلفون: Chuan-Yuan Hsu, Henry Potter, Steven F. DiMarco
المصدر: Ocean Dynamics. 71:911-922
بيانات النشر: Springer Science and Business Media LLC, 2021.
سنة النشر: 2021
مصطلحات موضوعية: Dynamic height, Current (stream), Oceanography, Water column, Eddy, Anticyclone, Advection, Ocean current, Ocean heat content, Geology
الوصف: Loop Current Eddies (LCEs) are warm-core, anticyclonic rings that shed from the Loop Current and migrate westward providing kinetic and potential energy to the Gulf of Mexico (GoM). Typically, LCEs dissipate through interaction with the western shelf slope, other mesoscale eddies, and diapycnal mixing. Here, we explore a case where a LCE, Eddy Poseidon, encountered Hurricane Harvey in the northwest GoM in August 2017 causing its rapid dissipation. This interaction significantly reduced Poseidon’s areal extent, dynamic height, heat content, and kinetic energy. Using in situ observations and numerical model output, we explore Poseidon’s dissipation and show it was caused by a combination of processes. A rigorous cold wake formed along Poseidon’s east, strong hurricane-induced surface currents transported shelf water towards the eddy on its north and west sides, and heat was lost throughout the water column from Poseidon’s southern edge. Horizontal advection was greatest at the surface and decreased with depth—27% of heat lost from Poseidon occurred in the top 100 m and 47% from the top 200 m.
تدمد: 1616-7228
1616-7341
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::5df47bcb119b7c9217902160f0d16dbd
https://doi.org/10.1007/s10236-021-01471-y
حقوق: CLOSED
رقم الأكسشن: edsair.doi...........5df47bcb119b7c9217902160f0d16dbd
قاعدة البيانات: OpenAIRE
الوصف
تدمد:16167228
16167341