Mechanism of Generation an Updraft Helicity due to Inhomogeneous Friction on the Underlying Surface

被引：1

作者：

Ingel, L. Kh. ^{[1
,3
]}

Makosko, A. A. ^{[2
,3
]}

机构：

[1] Typhoon Res & Prod Assoc, Obninsk 249038, Kaluga Oblast, Russia

[2] Russian Acad Sci, Moscow 000000, Russia

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

来源：

DOKLADY EARTH SCIENCES | 2022年 / 507卷 / SUPPL 3期

关键词：

inhomogeneous drag; underlying surface; atmospheric boundary layer; vertical motions; helicity; analytical model; BOUNDARY-LAYER;

D O I：

10.1134/S1028334X22601626

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Inhomogeneous friction on the underlying surface leads to horizontal divergence, vertical motions, and helicity generation. The significance of this mechanism is assessed by the analytical model that allows one to establish some general patterns and estimate the amplitudes of the corresponding perturbations depending on the values of the parameters. In particular, the possibility of generating noticeable vertical motions and a contribution to helicity that goes far beyond the boundary layer is shown.

引用

页码：S431 / S435

页数：5

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