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首页> 外文期刊>Oceanographic Literature Review >Analysis of ozone hole comma events in the south hemisphere and interaction with troposphere by the era interim reanalysis data
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Analysis of ozone hole comma events in the south hemisphere and interaction with troposphere by the era interim reanalysis data

机译：南半球臭氧孔逗号的分析与时期临时再分析数据对流层的互动

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摘要

The formation of ozone (O3) occurs in the lower stratosphere, in the layer above the troposphere, so does a large concentration of energy, which interferes in the temperature profile in practically all the stratosphere. From the 80's very low values of stratospheric ozone on the Antarctic Continent, especially in the months of September and October. This reduction was denominated the "Antarctic ozone hole", which was directly linked to chlorine-fluorocarbons (CFCs), which break down ozone bonds. Thus, this work aims to study the presence of this anomaly in the concentration of stratospheric ozone, when the "hole" extends to South America (SA) and has a "comma" format, as well as its implication in the conditions troposphere. We used 38 years of data between August and November, where we identified 122 low impact events in southern South America, and these events presented a "comma" format about AS. The temperature at 100 hPa (still within the troposphere) had a decrease during the "comma" events, like the zonal wind fields at 100 hPa. To observe the influence of wind in 200 hPa that the Subtropical Jet undergoes a weakening during the events, that reflects in greater amplitudes of Rossby waves. A potential vorticity presents a dipole over the Atlantic in the Rossby wave region, leading to comma events having direct access as stratosphere-troposphere changes, as a tropopause rupture occurs.
机译：臭氧（O3）的形成发生在较低的平流层中，在对流层上方的层中，所以具有大量的能量，其在实际上干扰了温度曲线。从80年代的南极大陆的平流层臭氧值非常低，特别是在9月和10月的月份。这种还原是以“南极臭氧孔”计为单位，其与氯氟碳（CFC）直接连接，该氟碳键分解臭氧键。因此，当“孔”延伸到南美洲（SA）并具有“逗号”格式时，这项工作旨在研究这种异常的浓度，并在南美洲（SA）并具有“逗号”格式，以及对流层条件中的含义。我们在8月至11月之间使用了38年的数据，我们在南美洲识别了122个低影响事件，这些事件呈现了“逗号”格式。在“逗号”事件中，100 HPA（仍然在对流层内）的温度减少，如100 HPA的区域风田。为了观察200 HPA的风力，亚热带射流在事件期间经历弱化，这反映了更大的rossby波的幅度。潜在的漩涡在罗斯比波区的大西洋上呈现偶极子，导致逗号事件作为平流层 - 对流层变化的直接接入，因为对流层次破裂发生。

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