Phase transitions between tropical, subtropical, and extratropical cyclones: A review from IWTC-10

Phase transitions between tropical, subtropical, and extratropical cyclones: A review from IWTC-10
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热带、亚热带和温带气旋之间的相变:IWTC-10 的回顾

DOI:
10.1016/j.tcrr.2023.11.002
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发表时间:
2023
影响因子:
2.9
通讯作者:
McTaggart-Cowan, Ron
McTaggart-Cowan, Ron
中科院分区:
地球科学4区
文献类型:
--
作者:
Wood, Kimberly;Yanase, Wataru;Beven, Jack;Camargo, Suzana J.;Courtney, Joseph B.;Fogarty, Chris;Fukuda, Junya;Kitabatake, Naoko;Kucas, Matthew;McTaggart-Cowan, Ron

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本审查改编自第十届国际热带气旋研讨会(IWTC-10)的报告,讨论了与气旋类型和相变(温带、副热带和热带)有关的研究结果和业务做法。气旋相空间(CPS)方法被广泛应用于气旋类型和过渡的历史研究和实时评估中,但CPS参数值依赖于输入数据的分辨率,目前尚不存在通用阈值来划分气旋从一种类型转变为另一种类型的时间。对气候变化中的相变的评估突出了温带转变的潜在纬度转移和热带转变的可能性,但对未来趋势的现实预测可能需要能够捕捉气旋暖核的高分辨率模拟。业务气象中心通过CPS参数和其他标准应用不同的方法来进行气旋分类,其中一些方法取决于热带盆地,但这些方法不能完全解决业务分类方面的挑战,以及随后在与这些阶段转变相关的沟通风险方面的挑战。我们建议对发生热带气旋和副热带气旋的所有流域,包括南大西洋和地中海,进行多变量历史评估,以确定是否有可能采取更普遍的气旋分类办法,以满足业务需要。
This review, which was adapted from a Tenth International Workshop on Tropical Cyclones (IWTC-10) report, discusses research findings and operational practices relevant to cyclone types and phase transitions (extratropical, subtropical, and tropical). The cyclone phase space (CPS) method is widely used in both historical investigations and real-time evaluation of cyclone type and transition; however, CPS parameter values depend on input data resolution, and universal thresholds do not currently exist to delineate when a cyclone transitions from one type to another. Assessments of phase transitions in a changing climate highlight potential latitude shifts in extratropical transition and increased potential for tropical transition, but realistic projections of future trends likely require high-resolution simulations that can capture the cyclone warm core.Operational meteorological centers apply varied approaches to cyclone classification via CPS parameters and other criteria, some of which depend on the tropical basin, yet these approaches cannot fully address challenges in operational classification and subsequently in communicating risks associated with these phase transitions. We recommend a multivariate historical assessment of tropical and subtropical cyclones across all basins in which they occur, including the South Atlantic Ocean and the Mediterranean Sea, to identify the potential for a more universal cyclone classification approach that meets operational needs.
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