热带气象学报2024，Vol.40Issue(1)：40-51,12.DOI:10.16032/j.issn.1004-4965.2024.005
阿拉伯海超级气旋风暴"查帕拉"(2015)快速加强过程中环境场特征
Environmental Characteristics During the Rapid Intensification of Super Cyclonic Storm Chapala(2015)over the Arabian Sea
摘要
Abstract
Based on the best-track data from the Joint Typhoon Warning Center,ERA5 0.25 °×0.25 ° reanalysis data,and NOAA 0.25 °×0.25 ° daily Optimum Interpolation Sea Surface Temperature data,a study was conducted to investigate the environmental characteristics during the rapid intensification of super cyclonic storm Chapala(2015)over the Arabian Sea.The results showed that the warm pool,which was 3.0-3.5℃ warmer than the annual average,provided water vapor and energy for the storm's rapid intensification.The establishment of the subtropical westerly jet on the north side of Chapala and the upper-level outflow channel on the south side were important upper-level forcing conditions for its rapid intensification.The enhancement of high-level divergent wind promoted the mass outflow to form a strong upward motion,accompanied by the rapid growth of rotational wind energy.There was a significant positive potential vorticity anomaly above 150 hPa during the rapid intensification of Chapala,bringing about the strengthening of cyclonic circulation at the lower level.At the same time,there was a significant positive potential vorticity advection inflow at 400 hPa.Thus,positive vorticity increased rapidly in the vertical direction.There was a warm core near 300 hPa,with the vertical convective motion in the inner core reaching the maximum.关键词
查帕拉/快速加强/高空出流/涡度/位涡Key words
Chapala/rapid intensification/upper-level outflow/vorticity/potential vorticity分类
天文与地球科学引用本文复制引用
柳龙生,刘莲,高拴柱..阿拉伯海超级气旋风暴"查帕拉"(2015)快速加强过程中环境场特征[J].热带气象学报,2024,40(1):40-51,12.基金项目
国家自然科学基金项目(41930972) （41930972）
国家重点研发计划(2019YFC1510102、2021YFC3090205)共同资助 （2019YFC1510102、2021YFC3090205）
