OBSERVATIONAL STUDY ON TOTAL OZONE AMOUNT AND ITS VERTICAL PROFILE OVER LHASA IN THE SUMMER OF 1998

Zheng Xiangdong; Tang Jie; Li Weiliang; Zhou Xiuji; Shi Guangyu; Y. Iwasaka

Vol.11, NO.2, 2000

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2000 > 11(2): 173-179

Zheng Xiangdong, Tang Jie, Li Weiliang, et al. Observational study on total ozone amount and its vertical profile over Lhasa in the summer of 1998. J Appl Meteor Sci, 2000, 11(2): 173-179.

Citation:

Zheng Xiangdong, Tang Jie, Li Weiliang, et al. Observational study on total ozone amount and its vertical profile over Lhasa in the summer of 1998. J Appl Meteor Sci, 2000, 11(2): 173-179.

Zheng Xiangdong, Tang Jie, Li Weiliang, et al. Observational study on total ozone amount and its vertical profile over Lhasa in the summer of 1998. J Appl Meteor Sci, 2000, 11(2): 173-179.

Citation:

Zheng Xiangdong, Tang Jie, Li Weiliang, et al. Observational study on total ozone amount and its vertical profile over Lhasa in the summer of 1998. J Appl Meteor Sci, 2000, 11(2): 173-179.

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OBSERVATIONAL STUDY ON TOTAL OZONE AMOUNT AND ITS VERTICAL PROFILE OVER LHASA IN THE SUMMER OF 1998

1.
Department of Geophysics, Peking University, Beijing 100871
2.
Chinese Academy of Meteorological Sciences, Beijing 100081
3.
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029
4.
Nagoya University, Japan

Received Date: 1999-05-12
Rev Recd Date: 1999-07-14
Publish Date: 2000-05-31

Abstract

Abstract

An observational study on total ozone amount and its vertical profile is presented using the measurements taken in Lhasa in the summer of 1998. In combination with other data sets, it is proved that there is a natural "ozone valley" over the Tibetan Plateau. Analyses show that there are errors on total ozone amount between groundbased and satellite ozone measurements. Brewer Umkehr observations demonstrate that the layer with maximum amount of ozone in the stratosphere over Lhasa may exist in altitude ranging from 25 km to 27.5 km in summer, with higher values and narrower width when compared with other regions in the same latitude. But the Umkehr measurements overestimated the tropospheric ozone. Observations of ECC ozonesondes show that there has obvious lower amount of ozone in the troposphere over Lhasa in the summer season.
- Lhasa;
- Total ozone amount;
- Ozone vertical profile

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References(7)

Figures and Tables

图 1 1998年夏季拉萨地区臭氧总量的逐日变化 (a) TOMS观测数据 (b) Brewer观测数据

) 中粗实线为线性拟合趋势y=-0.073x+282.4 (b) 中粗实线为线性拟合趋势y=-0.0820x+282.6)

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图 2 1998年拉萨地区夏季Brewer和TOMS观测所得臭氧总量的统计分析

(图中实线为线性拟合趋势y=0.751x+67.3)

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图 3 1998年拉萨地区夏季臭氧垂直分布观测的5次反演结果及猜测廓线

(a) 6月10日 (b) 6月20日 (c) 7月11日 (d) 7月19日 (e) 8月23日

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图 4 1998年8月11～15日拉萨地区臭氧探空观测的平均分布

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图 5 拉萨地区对流层臭氧的垂直分布与其他站点的比较

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表 1 30°N附近3个站1998年夏季臭氧总量观测结果月平均值 (单位: DU)

表 2 拉萨地区1998年夏季臭氧总量的Brewer、TOMS、ECC探空观测结果对比 (单位: DU)

References

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