Ozone laminae inside the Antarctic vortex produced by poleward filaments
Ozone laminae inside the Antarctic vortex produced by poleward filaments
复制标题
南极涡旋内由极向细丝产生的臭氧层
DOI：
10.1256/qj.03.19
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发表时间：
2003
影响因子：
8.9
通讯作者：
Francisco P. J. Valero
中科院分区：
文献类型：
--
作者：
M. Moustaoui;H. Teitelbaum;Francisco P. J. Valero
在南极臭氧空洞内进行的臭氧探测显示，平流层下部薄层内的局部臭氧增加。这些被称为薄片的结构被解释为从涡旋边缘出现的极向细丝，并将臭氧相对丰富的空气输送到发射探测设备的地理位置上方的高度。结果表明，南极涡旋内部与极地空气混合并不完全隔离。细丝的发育是在等熵局部升高的区域中涡旋边缘附近发生向内断裂之后发生的。结果表明，与这种隆起相关的环流可能会产生极向断裂。该环流的作用由简单的正压模拟支持，其中向极的细丝的发展在真实的圆形未受干扰的涡流中再现。版权所有 © 2003 英国皇家气象学会
Ozone soundings made inside the Antarctic ozone hole exhibit localized ozone increases within thin layers in the lower stratosphere. These structures, called laminae, are explained as poleward filaments emerging from the vortex edge and transporting relatively ozone‐rich air into levels above the geographical site where the sounding equipment has been launched. It is shown that the interior of the Antarctic vortex is not completely isolated with respect to the poleward air mixing. Filament development follows the occurrence of inward breaking near the vortex edge in a region where isentropes are locally uplifted. It is shown that the circulation associated with such uplift may produce the poleward breaking. The role of that circulation is supported by simple barotropic simulations where development of a poleward filament is reproduced in a realistic circular undisturbed vortex. Copyright © 2003 Royal Meteorological Society