Open AccessRelationship between convective bursts and the rapid intensification of Typhoon Mujigae (2015)
Author(s) -
Tang Xiba,
Ping Fan,
Yang Shuai,
Li Mengxia,
Peng Jing
Publication year - 2018
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl.811
Subject(s) - typhoon , troposphere , climatology , anomaly (physics) , atmospheric sciences , environmental science , potential vorticity , convection , vorticity , meteorology , geology , vortex , physics , condensed matter physics
Typhoon Mujigae was the strongest typhoon in 2015, and underwent an extreme rapid intensification (RI). The RI of Mujigae was reasonably reproduced by a 72‐hr control simulation. By enhancing two updrafts in the eye wall, connective bursts (CBs) were found to have played an important role in the formation of the two warming cores in the middle and upper troposphere, respectively, which triggered and maintained the RI of Typhoon Mujigae. Meanwhile, CBs induced the upper‐tropospheric potential vorticity anomaly and caused the downward transfer of momentum from the upper to the middle troposphere which was also conducive to the RI of the typhoon. Sensitivity tests confirmed our conclusion.