Mountain waves launched by convective activity within the boundary layer above mountains

被引：18

作者：

Worthington, RM ^{[1
]}

机构：

[1] Kyoto Univ, RASC, Radio Sci Ctr Space & Atmosphere, Kyoto 6110011, Japan

[2] Univ Colorado, CIRES, Boulder, CO 80309 USA

来源：

BOUNDARY-LAYER METEOROLOGY | 2002年 / 103卷 / 03期

基金：

日本学术振兴会;

关键词：

convection; mountain waves; radar; turbulence;

D O I：

10.1023/A:1014965029602

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Mountain waves are observed in the free atmosphere, even when the mountain boundary layer (the source region of these waves) is neutral or convectively unstable, and filled with convective rolls, revealed by cloud streets. This paper investigates if mountain waves are caused not simply by air flow over mountain ridges, but also by flow over boundary-layer convective activity, similar to convection waves above plains and oceans. Disturbance of stable air flow above mountains by convective activity, mechanical and convective turbulence and rotors, near the ground, could move the effective mountain-wave launching height to higher than the mountain peaks.

引用

页码：469 / 491

页数：23

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