The Role of Vertical and Horizontal Wind Shear in the Development of Quasi-tropical Cyclones

被引：0

作者：

Zaripov, R. B. ^{[1
,2
]}

Krupchatnikov, V. N. ^{[3
,4
,5
]}

Pavlyukov, Yu. B. ^{[2
]}

机构：

[1] Hydrometeorol Res Ctr Russian Federat, Bolshoi Predtechenskii per 13, Moscow 123242, Russia

[2] Cent Aerol Observ, Ul Pervomaiskaya 3, Dolgoprudnyi 141700, Moscow oblast, Russia

[3] Russian Acad Sci, Inst Numer Math & Math Geophys, Siberian Branch, Pr Akad Lavrenteva 6, Novosibirsk 630090, Russia

[4] Siberian Reg Res Hydrometeorol Inst, Ul Sovetskaya 30, Novosibirsk 630099, Russia

[5] Russian Acad Sci, Obukhov Inst Atmospher Phys, Pyzhevskii Per 3, Moscow 119017, Russia

来源：

RUSSIAN METEOROLOGY AND HYDROLOGY | 2023年 / 48卷 / 07期

基金：

俄罗斯科学基金会;

关键词：

quasi-tropical cyclones; cumulonimbus clouds; wind shear effects on cumulonimbus clouds; NUMERICAL-SIMULATION; STORMS; WISHE;

D O I：

10.3103/S1068373923070014

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Cloud-resolving modeling has been implemented to investigate a lifecycle of two quasi-tropical cyclones (QTCs) over the Black and Mediterranean seas in September 2005 and 2018. The formation of the Mediterranean QTC under the influence of the PV streamer and the problems of predicting this phenomenon are considered. The influence of the mesocyclone wind system on cumulus convection is studied, while mesocyclone winds are assumed to be axisymmetric for simplicity. It has been found for the largest and most intense QTCs that vertical wind shear may lead to the formation of supercellular storms, but to a rather limited extent and as a result of deviations of mesocyclone currents from the axial symmetry. In small intense QTCs, horizontal wind shear can suppress convection over a certain range of distances from the center of a cyclone, leading to a release of latent heat closer to it.

引用

页码：557 / 566

页数：10

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