TITLE:
Mesocyclone Evolution and Differences between Isolated and Embedded Supercells
AUTHORS:
Xiuguang Diao, Qian Shi, Houfu Zhou
KEYWORDS:
Evolution; Differences; Mesocyclones; Isolated and Embedded Supercells
JOURNAL NAME:
Atmospheric and Climate Sciences,
Vol.3 No.3A,
July
22,
2013
ABSTRACT:
A total of 61 supercells with mesocyclones lasting
for at least 6 volume scans were investigated. These storm parameters and mesocyclone parameters were
counted and compared to determine the salient differences between isolated supercells and embedded supercells in different regions. The results showed that the
mesocyclone parameters had different evolution characteristics in three stages
of mesocyclone. The storm parameters, mesocyclone parameters and severe weather
phenomenon had significantly differences between isolated supercells and
embedded supercells. The mesocyclone parameter differences determined the differences
in the reflectivity structure and weather phenomenon. The higher base and top
of mesocyclone for isolated supercells indicated that the isolated supercells
had higher maximum reflectivity, maximum reflectivity height, cell-based
vertically integrated liquid and top of storm cell, and significantly higher
probability of hail or large hail than the embedded supercells. The descending
lower base of mesocyclone at its mature stage in the region of Jianghuai Plain
indicated that the supercells in this region had a higher probability of mesocyclone-induced
tornado.