文献类型：期刊文献

英文题名：Physical Process Contributions to the Development of a Super Explosive Cyclone Over the Gulf Stream

作者：Zhang, Shuqin[1,2,3,4];Liu, Chunlei[2,4];Xu, Jianjun[2,4];Zhang, Shaojing[1,2];Tang, Ruoying[5];Huang, Zhefan[1];Zheng, Yanzhu[1];Guan, Zhuoqiang[1];Mao, Hongfei[6];Xue, Yufeng[1,2,3,4]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang, Peoples R China;[2]Guangdong Ocean Univ, South China Sea Inst Marine Meteorol, Zhanjiang, Peoples R China;[3]Guangdong Ocean Univ, Key Lab Climate Resources & Environm Continental, Dept Educ Guangdong Prov, Zhanjiang, Peoples R China;[4]CMA GDOU Joint Lab Marine Meteorol, Zhanjiang, Peoples R China;[5]Guangdong Ocean Univ, Coll Coastal Agr Sci, Zhanjiang, Peoples R China;[6]Guangdong Ocean Univ, Coll Ocean Engn, Zhanjiang, Peoples R China

年份：2021

卷号：9

外文期刊名：FRONTIERS IN EARTH SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000715646400001)、、Scopus(收录号：2-s2.0-85118356501)、WOS

语种：英文

外文关键词：super explosive cyclone; Gulf Stream; structure; diagnostic analysis; physical process

外文摘要：Contributions of different physical processes to the development of a super explosive cyclone (SEC) migrating over the Gulf Stream with the maximum deepening rate of 3.45 Bergeron were investigated using the ERA5 atmospheric reanalysis from European Centre for Medium-Range Weather Forecasts (ECMWF). The evolution of the SEC resembled the Shapiro-Keyser model. The moisture transported to the bent-back front by easterlies from Gulf Stream favored precipitation and enhanced the latent heat release. The bent-back front and warm front were dominated by the water vapor convergence in the mid-low troposphere, the cyclonic-vorticity advection in the mid-upper troposphere and the divergence in the upper troposphere. These factors favored the rapid development of the SEC, but their contributions showed significant differences during the explosive-developing stage. The diagnostic results based on the Zwack-Okossi equation suggested that the early explosive development of the SEC was mainly forced by the diabatic heating in the mid-low troposphere. From the early explosive-developing moment to maximum-deepening-rate moment, the diabatic heating, warm-air advection and cyclonic-vorticity advection were all enhanced significantly, their combination forced the most explosive development, and the diabatic heating had the biggest contribution, followed by the warm-air advection and cyclonic-vorticity advection, which is different from the previous studies of ECs over the Northwestern Atlantic. The cross section of these factors suggested that during the rapid development, the cyclonic-vorticity advection was distributed and enhanced significantly in the mid-low troposphere, the warm-air advection was strengthened significantly in the mid-low and upper troposphere, and the diabatic heating was distributed in the middle troposphere.