| 青藏高原春季不同地区臭氧和大气温度变化趋势的差异性 |
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| 引用本文： | 王晴,黄富祥,夏学齐.青藏高原春季不同地区臭氧和大气温度变化趋势的差异性[J].气候变化研究进展,2020,16(6):706-713. |
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| 作者姓名： | 王晴 黄富祥 夏学齐 |
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| 作者单位： | 中国地质大学(北京)地球科学与资源学院,北京 100083;中国气象局国家卫星气象中心,北京 100081;中国气象局国家卫星气象中心,北京 100081;中国气象局中国遥感卫星辐射测量和定标重点开放实验室,北京 100081;中国地质大学(北京)地球科学与资源学院,北京 100083 |
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| 基金项目： | 国家自然科学基金(41675031);国家自然科学基金(41275035) |
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| 摘 要： | 利用1979—2018年太阳后向散射紫外辐射计SBUV(/2)星下点臭氧遥感资料,结合ERA-Interim和MERRA-2大气温度再分析资料,考察青藏高原区域内拉萨和共和两地春季臭氧和大气温度变化趋势的差异性。结果表明拉萨和共和两个地区的臭氧和大气温度逆转趋势均发生于1999年。对比2008年以来青藏高原整体臭氧总量变化速率（4.5 DU/(10 a)),拉萨臭氧总量变化更快,为5.9 DU/(10 a),共和相对较慢,仅为3.7 DU/(10 a);同时,1999年以来拉萨和共和春季下平流层（100~30 hPa）大气温度分别以0.5~1.4℃/(10 a)和0.01~0.9℃/(10 a)速率增加,上对流层(250~175 hPa)大气温度分别以0.2~1.5℃/(10 a)和0.2~1.2℃/(10 a)速率降低。与2008年以来高原整体大气温度变化相比较,均慢于高原下平流层（125~70 hPa) 1~2℃/(10 a)的增温速率,快于高原上对流层（225~175 hPa）0.4~1.1℃/(10 a)的降温速率。两地臭氧与大气温度的相关系数和回归系数计算结果表明,拉萨和共和两个地区1999年以来春季臭氧恢复速率的不同是导致两地同期下平流层-上对流层温度逆转速率差异的重要因子之一。
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| 关 键 词： | 臭氧总量 臭氧廓线 大气温度 变化趋势 |
| 收稿时间： | 2019-09-05 |
| 修稿时间： | 2019-10-22 |
The differences in the trends of ozone and atmospheric temperature in spring over the Tibetan Plateau |
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| WANG Qing,HUANG Fu-Xiang,XIA Xue-Qi.The differences in the trends of ozone and atmospheric temperature in spring over the Tibetan Plateau[J].Advances in Climate Change,2020,16(6):706-713. |
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| Authors: | WANG Qing HUANG Fu-Xiang XIA Xue-Qi |
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| Institution: | 1.School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China2 National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China3 Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration, Beijing 100081, China |
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| Abstract: | Based on the ozone remote sensing data of SBUV(/2), combined with ERA-Interim and MERRA-2 reanalysis data, the trends of ozone and atmospheric temperature in Lhasa and Gonghe were investigated in spring during 1979-2018. The results show that the reversal trend of ozone and atmospheric temperature in Lhasa and Gonghe both occurred in 1999. Compared with the overall ozone changing rate of the Tibetan Plateau after 2008 (4.5 DU/(10 a)), the rate of Lhasa is faster, which is 5.9 DU/(10 a), and the rate of Gonghe is relatively slow, which is 3.7 DU/(10 a). Since 1999, the atmospheric temperature in the lower stratosphere (100-30 hPa) in Lhasa and Gonghe in spring have increased with the rates of 0.5-1.4℃/(10 a) and 0.01-0.9℃/(10 a), respectively, while the atmospheric temperature in the upper troposphere (250-175 hPa) have decreased with the rates of 0.2-1.5℃/(10 a) and 0.2-1.2℃/(10 a), respectively. Compared with the overall atmospheric temperature change of the plateau in 2008, the temperature increase rate is slower than that of the lower stratosphere (125-70 hPa, 1-2℃/(10 a)), and faster than that of the upper troposphere (225-175 hPa, 0.4-1.1℃/(10 a)). In view of the correlation coefficient and regression coefficient between the temperature and ozone, the different recovery rates of ozone in Lhasa and Gonghe in spring after 1999 may lead to the different rates of stratospheric-tropospheric temperature reversal in the same period. |
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| Keywords: | Total ozone Vertical ozone profiles Atmospheric temperature Trends |
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