Influence of radiation diurnal variation on the rapid intensification process of super Typhoon Rammasun (1409) in the South China Sea
In this study, a sensitivity experiment based on a numerical model is conducted to study the influence of the diurnal variation of radiation on the rapid intensification process of Super Typhoon Rammasun (1409) in the South China Sea. The result shows that changing the radiation process can change t...
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| Format: | Article |
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Frontiers Media S.A.
2022-08-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.940418/full |
| _version_ | 1828439236927291392 |
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| author | Xinghai Zhang Na Wei Na Wei Qian Wang Qian Wang |
| author_facet | Xinghai Zhang Na Wei Na Wei Qian Wang Qian Wang |
| author_sort | Xinghai Zhang |
| collection | DOAJ |
| description | In this study, a sensitivity experiment based on a numerical model is conducted to study the influence of the diurnal variation of radiation on the rapid intensification process of Super Typhoon Rammasun (1409) in the South China Sea. The result shows that changing the radiation process can change the onset time of the rapid intensification process of the typhoon and its maximum intensity. Vertical wind shear is a key factor in the TC rapid intensification influenced by diurnal radiation cycle, and the diurnal variation of radiation process causes obvious diurnal variation in vertical wind shear by changing the thermal difference between sea and land. The oscillation of vertical wind shear promotes the diurnal variation of the typhoon rainband, with an opposite variation trend in the control and sensitivity experiments, affecting the local convective available potential energy and inward transport of entropy and thus influencing the onset time of deep convective in the typhoon inner core region. By changing the establishment of the typhoon warm core (especially the upper-level warm core), deep convections finally affect the rapid intensification of the typhoon. |
| first_indexed | 2024-12-10T20:20:04Z |
| format | Article |
| id | doaj.art-1d67febdabed4585867a89f5576f2198 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-12-10T20:20:04Z |
| publishDate | 2022-08-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Earth Science |
| spelling | doaj.art-1d67febdabed4585867a89f5576f21982022-12-22T01:35:05ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632022-08-011010.3389/feart.2022.940418940418Influence of radiation diurnal variation on the rapid intensification process of super Typhoon Rammasun (1409) in the South China SeaXinghai Zhang0Na Wei1Na Wei2Qian Wang3Qian Wang4China Electronic Technology Group Corporation, Glarun Group Co., Ltd., Nanjing, ChinaNanjing Joint Institute for Atmospheric Sciences, Nanjing, ChinaState Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, ChinaDepartment of Atmospheric and Oceanic Sciences, Fudan University, Shanghai, ChinaNational Meteorological Center, Beijing, ChinaIn this study, a sensitivity experiment based on a numerical model is conducted to study the influence of the diurnal variation of radiation on the rapid intensification process of Super Typhoon Rammasun (1409) in the South China Sea. The result shows that changing the radiation process can change the onset time of the rapid intensification process of the typhoon and its maximum intensity. Vertical wind shear is a key factor in the TC rapid intensification influenced by diurnal radiation cycle, and the diurnal variation of radiation process causes obvious diurnal variation in vertical wind shear by changing the thermal difference between sea and land. The oscillation of vertical wind shear promotes the diurnal variation of the typhoon rainband, with an opposite variation trend in the control and sensitivity experiments, affecting the local convective available potential energy and inward transport of entropy and thus influencing the onset time of deep convective in the typhoon inner core region. By changing the establishment of the typhoon warm core (especially the upper-level warm core), deep convections finally affect the rapid intensification of the typhoon.https://www.frontiersin.org/articles/10.3389/feart.2022.940418/fulldiurnal variationsSouth China seatyphoonrapid intensificationvertical wind shear |
| spellingShingle | Xinghai Zhang Na Wei Na Wei Qian Wang Qian Wang Influence of radiation diurnal variation on the rapid intensification process of super Typhoon Rammasun (1409) in the South China Sea Frontiers in Earth Science diurnal variations South China sea typhoon rapid intensification vertical wind shear |
| title | Influence of radiation diurnal variation on the rapid intensification process of super Typhoon Rammasun (1409) in the South China Sea |
| title_full | Influence of radiation diurnal variation on the rapid intensification process of super Typhoon Rammasun (1409) in the South China Sea |
| title_fullStr | Influence of radiation diurnal variation on the rapid intensification process of super Typhoon Rammasun (1409) in the South China Sea |
| title_full_unstemmed | Influence of radiation diurnal variation on the rapid intensification process of super Typhoon Rammasun (1409) in the South China Sea |
| title_short | Influence of radiation diurnal variation on the rapid intensification process of super Typhoon Rammasun (1409) in the South China Sea |
| title_sort | influence of radiation diurnal variation on the rapid intensification process of super typhoon rammasun 1409 in the south china sea |
| topic | diurnal variations South China sea typhoon rapid intensification vertical wind shear |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.940418/full |
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