气象2026，Vol.52Issue(1)：16-28,13.DOI:10.7519/j.issn.1000-0526.2025.053001
超强台风"摩羯"强度异常变化特征及成因
Characteristics and Causes of the Anomalous Change in the Intensity of Super Typhoon Yagi
摘要
Abstract
Based on the station observation,sounding data,FY-4B satellite images,Doppler weather radar data and ERA5 reanalysis data,the characteristics and causes of the anomalous change in the intensity of Super Typhoon Yagi in 2024 are analyzed.It is found that Typhoon Yagi is the stongest landfalling au-tumn typhoon in China since 1981,and it maintained super typhoon level(SuperTY)in the South China Sea for 64 h,making it the longest-lasting super typhoon in the region.Typhoon Yagi experienced three rapid intensification(RI)processes.In one of these processes,it reached the level of extreme rapid inten-sification(ERI),with its 12 h and 24 h intensity increase amplitudes being the highest in the South China Sea since 1981.The robust southwestern monsoon supplied abundant moisture for the typhoon develop-ment,while the stable subtropical high and continental airflow transported convectively unstable air masses from land toward the typhoon's core,which enhanced the atmospheric potential instability near the typhoon circulation.Meanwhile,the weakened environmental vertical wind shear and favorable upper-level outflow conditions collectively facilitated the RI and the sustained peak intensity.The sea surface tempera-ture in the northern South China Sea exceeded 30℃,1-2℃ above normal,providing substantial latent heat flux to the atmosphere.During Yagi's RI,a significant increase in kinetic energy within the ty-phoon's domain was observed.The primary driver of this kinetic energy growth was a sharp rise in kinetic energy production.Moreover,the vertical and horizontal kinetic energy transports also contributed a lot.关键词
台风"摩羯"/超强台风/快速增强/南海/季风/副热带高压/动能收支Key words
Typhoon Yagi/super typhoon/rapid intensification(RI)/South China Sea/monsoon/sub-tropical high/kinetic energy budget分类
天文与地球科学引用本文复制引用
杨国杰,韩浦城,程正泉,龚月婷,韦凯华,沙天阳..超强台风"摩羯"强度异常变化特征及成因[J].气象,2026,52(1):16-28,13.基金项目
广东气象联合基金重点项目(2024B1515520002)、国家自然科学基金项目(42475015)和中国气象局重点创新团队(CMA2023ZD07)共同资助 （2024B1515520002）
