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| DOI | 10.1016/j.atmosres.2024.107292 |
| Increase in western North Pacific tropical cyclone intensification rates and their northwestward shifts | |
| 发表日期 | 2024 |
| ISSN | 0169-8095 |
| EISSN | 1873-2895 |
| 起始页码 | 301 |
| 卷号 | 301 |
| 英文摘要 | The tropical cyclone intensification rates (TCIRs) over the western North Pacific (WNP) are investigated on the basis of 6-hourly atmospheric and oceanic reanalyses and TC best track data from 1982 to 2020. Results indicate that 24-h-TCIRs over the WNP have increased remarkably by similar to 17.2% in the past four decades. A remarkable difference before and after the changepoint 2004 is detected in 24-h TCIRs over the WNP basin. The correlation between the TCIR and sea surface temperature (SST) during 2005-2020 shows a significant positive correlation over the western Pacific. Composite analyses of atmospheric and oceanic environments between P1 (1982-2004) and P2 (2005-2020) suggest greater contributions of the underlying SST and relative vorticity (VORT) than those of vertical wind shear (VWS) and mid-tropospheric relative humidity (RH) to TCIR increase. The maximum potential intensity (MPI) has increased since the 1980s, with a significant change from P1 to P2, which further demonstrates that the environmental fields since 2004 are more favorable for TC intensification. At the same time, TCIR geolocation shows a northwestward shift over the TC-active region bounded by 10 degrees similar to 25 degrees N, 125 degrees similar to 150 degrees E since 2004, which is possibly modulated by the interdecadal difference of steering flow and ocean state. This study may provide inspirations to clarify the mechanisms of WNP-TCIR interdecadal increase for general TC intensity forecast. |
| 英文关键词 | Climate change; Tropical cyclone; Intensification rate; Environmental fields; Western North Pacific |
| 语种 | 英语 |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:001189048000001 |
| 来源期刊 | ATMOSPHERIC RESEARCH
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/298418 |
| 作者单位 | National University of Defense Technology - China; Nanjing University of Information Science & Technology; National University of Defense Technology - China |
| 推荐引用方式 GB/T 7714 | . Increase in western North Pacific tropical cyclone intensification rates and their northwestward shifts[J],2024,301. |
| APA | (2024).Increase in western North Pacific tropical cyclone intensification rates and their northwestward shifts.ATMOSPHERIC RESEARCH,301. |
| MLA | "Increase in western North Pacific tropical cyclone intensification rates and their northwestward shifts".ATMOSPHERIC RESEARCH 301(2024). |
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