文献类型：期刊文献

英文题名：Impacts of Intraseasonal Oscillations on Tropical Cyclone Rapid Intensification in the Northwestern Pacific During Winter

作者：Chen, Chaodong[1];Ling, Zheng[1,2];He, Hailun[3];Zhang, Tianyu[1]

机构：[1]Guangdong Ocean Univ, Key Lab Climate Resources & Environm Continental S, Dept Educ Guangdong Prov, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[2]Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 528315, Peoples R China;[3]Minist Nat Resources, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Peoples R China

年份：2025

卷号：17

期号：7

外文期刊名：REMOTE SENSING

收录：SCI-EXPANDED(收录号：WOS:001464304200001)、、EI(收录号：20251518221110)、Scopus(收录号：2-s2.0-105002279998)、WOS

基金：This study was jointly funded by the National Natural Science Foundation of China (Grant no. 42476219 and 42227901); Independent research project of Southern Ocean Laboratory (Grant number SML2022SP301); Innovative Team Plan for Department of Education of Guangdong Province (No. 2023KCXTD015); Guangdong Science and Technology Plan Project (Observation of Tropical marine environment in Yuexi); Guangdong Ocean University Scientific Research Program (Grant number 060302032106).

语种：英文

外文关键词：intraseasonal oscillation; tropical cyclones; rapid intensification; northwestern Pacific

外文摘要：In winter, the northwestern Pacific (NWP) is affected by two atmospheric intraseasonal oscillations (ISOs), the Madden-Julian oscillation (MJO) and the quasi-biweekly oscillation (QBWO). Using observational data and global reanalysis products, the present study investigates the impact of ISOs on the rapid intensification (RI) of tropical cyclones (TCs) in the NWP. The results indicate that both the MJO and QBWO can affect the frequency, occurrence location, intensification rate, and duration of TCRI. More (fewer) RI events occur in the convective (non-convective) phases of the MJO and the QBWO, when the main RI region is dominated by the convective (non-convective) signals of the ISOs. Additionally, the modulation of RI frequency by the MJO is much stronger than that by the QBWO. With the eastward (westward) propagation of the convective signals of the MJO (QBWO), the RI occurrence location shows a clear eastward (westward) shift. Further analysis shows that the low-level relative vorticity and mid-level relative humidity play a major role in the modulation of ISOs on RI frequency and location. To RI intensify rate and RI duration, the effects of the MJO and QBWO are relatively weak. The combined effects of the MJO and QBWO on TCRI are also discussed in this study. These findings underscore the important role of both the MJO and QBWO in modulating the TCRI.