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Vertical characteristics of ozone variation over the Arctic Chukchi Sea region in 1999

【标题】Vertical characteristics of ozone variation over the Arctic Chukchi Sea region in 1999

【Title】Vertical characteristics of ozone variation over the Arctic Chukchi Sea region in 1999

【作者】 周立波; 刘宇; 邹畏捍

【Author】 Zhou Libo ; Liu Yu ; Zou Han

【期刊】极地研究

【Journal】

【期刊年份】2002

【卷】13

【期】

【关键词】 ozonesonds; TOMS; tropopause; synoptic system

【Keywords】 ozonesonds; TOMS; tropopause; synoptic system

【摘要】In 1999 summer, Chinese Arctic Research Expedition operated the Chukchi Sea. On Chinese icebreaker Xuelong, we made many high resolution ozonesonds measurements. During the period from August 18 to 24, a synoptic scale observation was taken at 75°N, 160°W. Using the above data, together with TOMS total ozone and NCEP circulation data, we showed that atmospheric ozone amount experienced a high-low-high variation, with low-high-low tropopause altitude. Correlation analysis showed a close relation between the total ozone and ozone below 13 km, while the variation of the maximum concentration at about 20 km didn't show any relation to the column ozone. In 500 hPa height maps, there was also the weak-strong-weak southwesterly pattern. Therefore we suggested that the synoptic system might be responsible to a low ozone advection during this ozone variation.

【Abstract】In 1999 summer, Chinese Arctic Research Expedition operated the Chukchi Sea. On Chinese icebreaker Xuelong, we made many high resolution ozonesonds measurements. During the period from August 18 to 24, a synoptic scale observation was taken at 75°N, 160°W. Using the above data, together with TOMS total ozone and NCEP circulation data, we showed that atmospheric ozone amount experienced a high-low-high variation, with low-high-low tropopause altitude. Correlation analysis showed a close relation between the total ozone and ozone below 13 km, while the variation of the maximum concentration at about 20 km didn't show any relation to the column ozone. In 500 hPa height maps, there was also the weak-strong-weak southwesterly pattern. Therefore we suggested that the synoptic system might be responsible to a low ozone advection during this ozone variation.

【基金/项目】

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