Characteristics of rapidly intensifying tropical cyclones in the South China Sea, 1980–2016
The differences in the characteristics of the rapid intensification (RI) during the TCs that form in the SCS (referred as local TCs) and that enter the SCS from the western North Pacific (WNP; referred as entering TCs) have not been well studied, which could contribute the inaccuracy of current TC i...
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KeAi Communications Co., Ltd.
2022-06-01
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| Series: | Advances in Climate Change Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674927822000429 |
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| author | Lei Yang Xi Luo Sheng Chen Xiao-Li Zhou Wei-Qiang Wang Dong-Xiao Wang |
| author_facet | Lei Yang Xi Luo Sheng Chen Xiao-Li Zhou Wei-Qiang Wang Dong-Xiao Wang |
| author_sort | Lei Yang |
| collection | DOAJ |
| description | The differences in the characteristics of the rapid intensification (RI) during the TCs that form in the SCS (referred as local TCs) and that enter the SCS from the western North Pacific (WNP; referred as entering TCs) have not been well studied, which could contribute the inaccuracy of current TC intensity forecast in the SCS. In this study, we used TC observations, reanalysis data and model experiments to analyze the RI occurrences during local TCs and entering TCs in 1980–2016. We found that the significant interannual and interdecadal variations in RI occurrences during local eastward-moving TCs were related to the strong intraseasonal oscillation (ISO) over the SCS and the WNP under La Niña conditions. RI during local westward-moving TCs showed insignificant variations as a result of the complex interactions among the monsoon trough, ISO and the large-scale circulation. RI during entering TCs showed strong interdecadal variations, with increased RI after 1997, even though the total number of entering TCs has decreased since 1997, which is a result of a higher number of entering TCs in the northwestern quadrant of the WNP, a stronger ISO and weak vertical windshear over the SCS and east of the Philippines under negative phase of Pacific Decadal Oscillation. The different variations and related mechanisms of RI indicates that distinct forecasting factors should be considered for intensity prediction during local eastward- and westward-moving TCs and entering TCs. |
| first_indexed | 2024-12-12T05:34:06Z |
| format | Article |
| id | doaj.art-3b686a0e2271444c9fb58e8fe49005f0 |
| institution | Directory Open Access Journal |
| issn | 1674-9278 |
| language | English |
| last_indexed | 2024-12-12T05:34:06Z |
| publishDate | 2022-06-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Advances in Climate Change Research |
| spelling | doaj.art-3b686a0e2271444c9fb58e8fe49005f02022-12-22T00:36:13ZengKeAi Communications Co., Ltd.Advances in Climate Change Research1674-92782022-06-01133333343Characteristics of rapidly intensifying tropical cyclones in the South China Sea, 1980–2016Lei Yang0Xi Luo1Sheng Chen2Xiao-Li Zhou3Wei-Qiang Wang4Dong-Xiao Wang5State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China; Corresponding author. State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.School of Marine Science, Sun Yat-sen University, Zhuhai 519082, ChinaState Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, ChinaInstitute of Deep-Sea Science and Engineering, Chinese Academic Science, Sanya 572099, ChinaState Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, ChinaSchool of Marine Science, Sun Yat-sen University, Zhuhai 519082, ChinaThe differences in the characteristics of the rapid intensification (RI) during the TCs that form in the SCS (referred as local TCs) and that enter the SCS from the western North Pacific (WNP; referred as entering TCs) have not been well studied, which could contribute the inaccuracy of current TC intensity forecast in the SCS. In this study, we used TC observations, reanalysis data and model experiments to analyze the RI occurrences during local TCs and entering TCs in 1980–2016. We found that the significant interannual and interdecadal variations in RI occurrences during local eastward-moving TCs were related to the strong intraseasonal oscillation (ISO) over the SCS and the WNP under La Niña conditions. RI during local westward-moving TCs showed insignificant variations as a result of the complex interactions among the monsoon trough, ISO and the large-scale circulation. RI during entering TCs showed strong interdecadal variations, with increased RI after 1997, even though the total number of entering TCs has decreased since 1997, which is a result of a higher number of entering TCs in the northwestern quadrant of the WNP, a stronger ISO and weak vertical windshear over the SCS and east of the Philippines under negative phase of Pacific Decadal Oscillation. The different variations and related mechanisms of RI indicates that distinct forecasting factors should be considered for intensity prediction during local eastward- and westward-moving TCs and entering TCs.http://www.sciencedirect.com/science/article/pii/S1674927822000429Tropical cyclonesRapid intensificationIntraseasonal oscillationPacific Decadal OscillationSouth China SeaWestern North Pacific |
| spellingShingle | Lei Yang Xi Luo Sheng Chen Xiao-Li Zhou Wei-Qiang Wang Dong-Xiao Wang Characteristics of rapidly intensifying tropical cyclones in the South China Sea, 1980–2016 Advances in Climate Change Research Tropical cyclones Rapid intensification Intraseasonal oscillation Pacific Decadal Oscillation South China Sea Western North Pacific |
| title | Characteristics of rapidly intensifying tropical cyclones in the South China Sea, 1980–2016 |
| title_full | Characteristics of rapidly intensifying tropical cyclones in the South China Sea, 1980–2016 |
| title_fullStr | Characteristics of rapidly intensifying tropical cyclones in the South China Sea, 1980–2016 |
| title_full_unstemmed | Characteristics of rapidly intensifying tropical cyclones in the South China Sea, 1980–2016 |
| title_short | Characteristics of rapidly intensifying tropical cyclones in the South China Sea, 1980–2016 |
| title_sort | characteristics of rapidly intensifying tropical cyclones in the south china sea 1980 2016 |
| topic | Tropical cyclones Rapid intensification Intraseasonal oscillation Pacific Decadal Oscillation South China Sea Western North Pacific |
| url | http://www.sciencedirect.com/science/article/pii/S1674927822000429 |
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