气候变化领域集成服务门户(CCPortal): Influence of Stratification and Yucatan Current Transport on the Loop Current Eddy Shedding Process

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DOI	10.1029/2020JC016315
	Influence of Stratification and Yucatan Current Transport on the Loop Current Eddy Shedding Process
	Moreles E.; Zavala-Hidalgo J.; Martínez-López B.; Ruiz-Angulo A.
发表日期	2021
ISSN	21699275
卷号	126 期号:1
英文摘要	The effects of stratification and Yucatan Current (YC) transport on the dynamics of the Loop Current (LC) and Loop Current Eddies (LCEs) are studied using a primitive equation, 2½ nonhomogeneous layered model, which reproduces the main dynamical features of the upper ocean circulation in the Gulf of Mexico (GoM). The analysis considers the observed variations in stratification and YC transport, and their expected changes due to climate change. The study is based on a set of long-term simulations considering the combination of seven stratification configurations with seven transport configurations resulting in 49 cases. The LCE shedding period and diameter (LCE metrics) and kinetic energy, eddy kinetic energy, available potential energy, eddy available potential energy, and the energy Burger number (energy metrics) are analyzed. The stratification and transport contribute to the current and future LC and LCE variability, with their dynamics being more sensitive to transport variations than to stratification variations. The LCE detachment is associated with the increase in the mass of the LC and its available potential energy budget, which is a primary determinant for the LC and LCE dynamics and a condition for eddy shedding. For the expected changes due to climate change, the LCE response is contrary: larger stratification causes increments in the LCE metrics and energy metrics, except the energy Burger number that decreases; conversely, smaller transport causes the opposite response. A combined occurrence of increased stratification and reduced transport, as expected with climate change, causes decrements in the LCE metrics and energy in the GoM. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	available potential energy; climate change; Loop Current Eddy shedding; transport of the Yucatan current; upper ocean stratification
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186532
作者单位	Instituto de Ciencias del Mar y Limnología, Unidad Académica Procesos Oceánicos y Costeros, Universidad Nacional Autónoma de México, Mexico City, Coyoacán, Mexico; Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City, Coyoacán, Mexico; Icelandic Meteorological Office, Reykjavík, Iceland
推荐引用方式 GB/T 7714	Moreles E.,Zavala-Hidalgo J.,Martínez-López B.,et al. Influence of Stratification and Yucatan Current Transport on the Loop Current Eddy Shedding Process[J],2021,126(1).
APA	Moreles E.,Zavala-Hidalgo J.,Martínez-López B.,&Ruiz-Angulo A..(2021).Influence of Stratification and Yucatan Current Transport on the Loop Current Eddy Shedding Process.Journal of Geophysical Research: Oceans,126(1).
MLA	Moreles E.,et al."Influence of Stratification and Yucatan Current Transport on the Loop Current Eddy Shedding Process".Journal of Geophysical Research: Oceans 126.1(2021).