{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T04:23:43Z","timestamp":1747196623079,"version":"3.40.5"},"reference-count":28,"publisher":"Public Library of Science (PLoS)","issue":"8","license":[{"start":{"date-parts":[[2024,8,30]],"date-time":"2024-08-30T00:00:00Z","timestamp":1724976000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"The Postgraduate Research and Practice Innovation Program of Jiangsu Province","award":["SJCX23_1818"],"award-info":[{"award-number":["SJCX23_1818"]}]},{"name":"the Postgraduate Research and Practice Innovation Program of Jiangsu Ocean University","award":["KYCX2023-93"],"award-info":[{"award-number":["KYCX2023-93"]}]},{"name":"the Postgraduate Research and Practice Innovation Program of Jiangsu Ocean University","award":["KYCX2023-59"],"award-info":[{"award-number":["KYCX2023-59"]}]},{"name":"Natural Science Foundation of the Jiangsu Higher Education Institutions of China","award":["23KJB170005"],"award-info":[{"award-number":["23KJB170005"]}]},{"DOI":"10.13039\/501100001809","name":"the National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["42306028"],"award-info":[{"award-number":["42306028"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>The unique Tropical cyclone (TC) Fantala appeared in the central Indian Ocean (12.4\u00b0S, 73.5\u00b0E) at 00Z on April 11 in 2016 and moved northwestward along the northeast of Madagascar at 18 Z on April 15. Then, two incomprehensible turnbacks formed a unique TC track. The dynamic mechanisms of the three turnbacks were first studied based on remote sensing and multisource reanalysis data. The results reveal that the wind field with upper divergence and lower convergence promotes the development of Fantala. The anticyclone high pressure on the middle level atmosphere is an important factor for TC turnbacks. On 15 April, the TC made the first turnback to turn northwest due to the southward anticyclone weakened to moving northwest. On 18 April, the TC made the second turnback along the anticyclone edge due to the northern high-pressure and southern low-pressure trough. On 22 April, the TC made the third turnback because the anticyclonic high press center broke into two small independent anticyclonic centers in the southwest and northeast, which created a barrier band and pushed the northern TC to move to the northwest. Meanwhile, the vertical wind shear (VWS) also provides favorable conditions for TC turnbacks. On April 18, the middle atmosphere of the TC was affected by strong easterly shear and weak southerly shear, and the second turnback was completed. On April 22, the middle level environment was affected by strong westerly shear and weak north shear, and the third turnback was completed. Additionally, heat transport from the ocean to the atmosphere provides favorable conditions for TC development. On April 18, The maximum mean latent heat flux over northeastern Madagascar was 112.94 W\/m<jats:sup>2<\/jats:sup>, Tropical Cyclone Heat Potential was 39.05 kJ\/cm<jats:sup>2<\/jats:sup>, and the maximum wind speed at the center of the TC was 155 kts. On April 22, The heat transfer from the equator increased by 18.08 W\/m<jats:sup>2<\/jats:sup> compared with the latent heat on 21 April, the Tropical Cyclone Heat Potential was 33.30 kJ\/cm<jats:sup>2<\/jats:sup>, the maximum wind speed in the TC center was 90 kts, the high PV centerspread down from 850 mb to 900 mb. This study deepens the understanding of track forecasting during the development of a TC.<\/jats:p>","DOI":"10.1371\/journal.pone.0305873","type":"journal-article","created":{"date-parts":[[2024,8,30]],"date-time":"2024-08-30T17:56:03Z","timestamp":1725040563000},"page":"e0305873","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["Tropical cyclone FANTALA\u2019s three turnbacks in the northeast of Madagascar Island"],"prefix":"10.1371","volume":"19","author":[{"given":"Liqiong","family":"Zhang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kequ","family":"Sun","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yulin","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5341-6294","authenticated-orcid":true,"given":"Yuhan","family":"Cao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qi","family":"Feng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yaoyao","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0951-1363","authenticated-orcid":true,"given":"Haibin","family":"L\u00dc","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2024,8,30]]},"reference":[{"key":"pone.0305873.ref001","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1038\/nclimate1410","article-title":"Global trends in tropical cyclone risk","volume":"2","author":"P. 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