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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >OBSERVATIONS OF OZONE STRUCTURES IN THE ARCTIC POLAR VORTEX
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OBSERVATIONS OF OZONE STRUCTURES IN THE ARCTIC POLAR VORTEX

机译：北极极涡中臭氧结构的观测

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Lidar and balloon measurements at the new observatory, AStrO (80.05 degrees N, 86.42 degrees W), near Eureka, in the Canadian Arctic, have revealed laminations inside the ozone layer both inside and outside the polar vortex. These observations have been conducted by the lidar group of the Institute for Space and Terrestrial Science during February-March 1993 and the winters of 1993-1994 and 1994-1995. Observations of the vortex edge region were obtained as it passed over Eureka, revealing ozone profiles rich in structure. This paper discusses the observed ozone structures and their relationship to vortex filaments, the vortex edge structure, low-ozone pockets, motion of the vortex edge region in the ozone profiles, and observed temperatures. Complementing the observations are back trajectories, potential vorticity maps, and Lagrangian domain-filling potential vorticity trajectories. The relations of magnitude and thickness of the laminations to their positions relative to the vortex are revealed by presenting data as a function of potential vorticity. Mechanisms for the formation and transport of the laminae are discussed, as well as their role as a possible exchange mechanism of air masses across the polar vortex boundary. From observations of the laminations and their relation to potential vorticity, it is suggested that motion of the vortex, sometimes associated with warmings, is involved in the formation of laminations, which are subsequently advected as filamentary structures. [References: 41]
机译：在加拿大北极圈尤里卡附近的新天文台AStrO（北纬80.05度，北纬86.42度）的激光雷达和气球测量表明，极涡内部和外部的臭氧层内部都存在着叠层。这些观测是由空间与地球科学研究所的激光雷达小组在1993年2月至3月以及1993-1994年和1994-1995年冬季进行的。涡旋边缘区域越过尤里卡（Eureka）时获得了观测，显示出富含结构的臭氧剖面。本文讨论了观测到的臭氧结构及其与涡流丝，涡流边缘结构，低臭氧层，臭氧剖面中涡流边缘区域的运动以及观测到的温度之间的关系。与观测值互补的是后向轨迹，潜在涡度图和拉格朗日域填充潜在涡度轨迹。叠片的大小和厚度与其相对于涡旋的位置的关系通过将数据呈现为潜在涡旋的函数来揭示。讨论了层流形成和传输的机制，以及它们作为跨极涡旋边界的气团可能的交换机制的作用。从对叠片及其与潜在涡度的关系的观察中可以看出，有时与变暖有关的涡旋运动参与了叠片的形成，其随后被平移为丝状结构。 [参考：41]

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