Generalized Empirical Formulas of Threshold Distance to Characterize Cyclone-Cyclone Interactions

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題名:	Generalized Empirical Formulas of Threshold Distance to Characterize Cyclone-Cyclone Interactions
作者:	劉說安;Liou, Yuei-An;Liu, Ji-Chyun;Wu, Meng-Xi;Lee, Yueh-Jyun;Cheng, Chi-Han;Kuei, Ching-Ping;Hong, Rong-Moo
貢獻者:	太空及遙測研究中心
關鍵詞:	Clouds;Cyclone-cyclone interaction;Cyclones;empirical formula;Optical surface waves;Remote sensing;satellite cloud image;Satellites;Tracking;Tropical cyclones;Tropical depressions;Typhoons;Weather forecasting
日期:	2016-06-01
上傳時間:	2026-04-21 14:40:02 (UTC+8)
出版者:	Institute of Electrical and Electronics Engineers Inc.;New York: IEEE
摘要:	摘要： This paper presents a framework of using remote sensing imagery and image processing techniques to analyze the interaction among typhoons or tropical cyclones (TCs) with and without the involvement of mid-tropical depressions (TDs) or tropical storms (TSs). The cyclone-cyclone interaction (named the Fujiwhara effect) could happen when two TCs are located at a distance within 1400 km. However, when there exists a mid-TD between the two TCs even with a distance of more than 1400 km, but usually within a distance of 1500-2700 km, the mid-TD may induce impacts on the two cyclones, defined as a TD-inlaid cyclone-cyclone interaction. The existence of the mid-TD significantly complicates weather forecasting due to difficulty in modeling its influence on the two cyclones. In this paper, we proposed innovative empirical formulas of threshold distance to characterize cyclone-cyclone interactions either with or without the involvement of the TD(s). We generalize empirical formulas for interaction distances between TCs and TD/TS related to current-intensity number, size factor, height difference, and rotation factor. To validate the appropriateness of the generalized empirical formulas, we choose and analyze seven sets of two-typhoon events. It is shown that the generalized formulas successfully predicted the impact of mid inlaid TC/TS quantitatively. The mid-TD's effects on the two cyclones represent a new aspect and a significantly improved understanding for the prediction of more complicated cyclone-cyclone interactions. Note that the empirical formulas are derived from a very small set of events and that they must be verified with a sufficient data set for future practical use. 其他題名： TGRS 出版者： New York: IEEE 出版日期： 2016-06 出處： IEEE Transactions on Geoscience and Remote Sensing, 2016-06, Vol.54 (6), p.3502-3512 資源來源： IEEE Electronic Library (IEL) 版權： Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2016 識別號： ISSN: 0196-2892 識別號： EISSN: 1558-0644 識別號： DOI: 10.1109/TGRS.2016.2519538 識別號： CODEN: IGRSD2
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