首页|Diagnostic Study of an Extreme Explosive Cyclone over the Kuroshio/Kuroshio Extension Region

Diagnostic Study of an Extreme Explosive Cyclone over the Kuroshio/Kuroshio Extension Region

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Explosive cyclones(ECs)occur frequently over the Kuroshio/Kuroshio Extension region.The most rapidly intensi-fied EC over the Kuroshio/Kuroshio Extension region during the 42 years(1979-2020)of cold seasons(October-April)was studied to reveal the variations of the key factors at different explosive-developing stages.This EC had weak low-level baroclinic-ity,mid-level cyclonic-vorticity advection,and strong low-level water vapor convergence at the initial explosive-developing stage.The low-level baroclinicity and mid-level cyclonic-vorticity advection increased substantially during the maximum-deepening-rate stage.The diagnostic analyses using the Zwack-Okossi equation showed that diabatic heating was the main contributor to the ini-tial rapid intensification of this EC.The cyclonic-vorticity advection and warm-air advection enhanced rapidly in the middle and up-per troposphere and contributed to the maximum rapid intensification,whereas the diabatic heating weakened slightly in the mid-low troposphere.The relative contribution of the diabatic heating decreased from the initial explosive-developing stage to the maxi-mum-deepening-rate stage due to the enhancement of other factors(the cyclonic-vorticity advection and warm-air advection).Furthermore,the physical factors contributing to this EC varied with the explosive-developing stage.The non-key factors at the initial explosive-developing stage need attention to forecast the rapid intensification.

explosive cyclonediabatic heatingcyclonic-vorticity advectionrapid intensificationthe Kuroshio/Kuroshio Ex-tension region

ZHANG Shuqin、LIAO Qinghua、LIU Chunlei、GAO Xiaoyu、LONG Jingchao、LI Pengyuan、XU Jianjun

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College of Ocean and Meteorology,Guangdong Ocean University,Zhanjiang 524088,China

South China Sea Institute of Marine Meteorology,Guangdong Ocean University,Zhanjiang 524088,China

CMA-GDOU Joint Laboratory for Marine Meteorology,Guangdong Ocean University,Zhanjiang 524088,China

Key Laboratory of Climate,Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province,Guangdong Ocean University,Zhanjiang 524088,China

State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081,China

Department of Marine Meteorology,Ocean-Atmosphere Interaction and Climate Laboratory,Key Laboratory of Physical Oceanography,Ocean University of China,Qingdao 266100,China

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State Key Program of the National Natural Science Foundation of ChinaMajor Program of the National Natural Science Foundation of ChinaYouth Innovative Talents Program of Guangdong Colleges and UniversitiesNatural Science Foundation of ShandongProject of Enhancing School with Innovation of Guangdong Ocean UniversityNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaGuangdong Ocean University Ph.D.Scientific Research Program

42130605722936042022KQNCX026ZR2022MD03823041910642275001422760194220501442275017R19045

2024

10.1007/s11802-023-5707-1

中国海洋大学学报(自然科学英文版)
中国海洋大学

中国海洋大学学报(自然科学英文版)

CSTPCD
影响因子：0.268
ISSN：1672-5182
年,卷(期)：2024.23(3)
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