李小婷,田文寿,谢飞,张如华,雒佳丽,梁靖琳. 2019. 第二类ENSO和平流层准两年振荡对冬季北半球平流层臭氧的联合调制作用[J]. 气象学报, (0):-, doi:10.11676/qxxb2019.028
第二类ENSO和平流层准两年振荡对冬季北半球平流层臭氧的联合调制作用
Joint impacts of ENSO Modoki and QBO on stratospheric ozone in winter in Northern Hemisphere
投稿时间:2018-07-12  修订日期:2018-09-19
DOI:10.11676/qxxb2019.028
中文关键词:  ENSO Modoki,平流层准两年振荡(QBO),北半球平流层臭氧,联合调制作用
英文关键词:ENSO Modoki, Quasi-biennial Oscillation (QBO), Stratospheric ozone in the Northern Hemisphere, Joint impacts
基金项目:国家自然科学基金(41575038,41630421)
作者单位E-mail
李小婷 兰州大学大气科学学院 lixt2016@lzu.edu.cn 
田文寿 兰州大学大气科学学院 wstian@lzu.edu.cn 
谢飞 北京师范大学全球变化与地球系统科学研究院 xiefei@bnu.edu.cn 
张如华 兰州大学大气科学学院 zhangrh17@lzu.edu.cn 
雒佳丽 兰州大学大气科学学院 luojl@lzu.edu.cn 
梁靖琳 兰州大学大气科学学院 liangjl17@lzu.edu.cn 
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中文摘要:
      利用观测和再分析资料通过合成分析方法,研究了第二类ENSO(ENSO Modoki)和平流层准两年振荡(QBO)对冬季北半球平流层臭氧的独立影响和两者对臭氧的联合调制作用。研究表明,冬季北半球平流层臭氧在El Ni?o Modoki年增加,而在La Ni?a Modoki年减少;QBO东风位相(EQBO)年份,冬季北半球平流层臭氧增加,西风位相(WQBO)结果则相反。相比之下,冬季北半球中、高纬度平流层臭氧异常对QBO活动的响应明显小于其对ENSO活动的响应。进一步研究发现,EQBO会加强El Ni?o Modoki事件引起的冬季北半球平流层臭氧的增加,而减弱La Ni?a Modoki事件造成的平流层臭氧的减少。在WQBO位相下,El Ni?o Modoki事件仅导致冬季北半球平流层臭氧含量少量增加,而La Ni?a Modoki事件期间臭氧会大幅度减少。因此,EQBO会加强El Ni?o Modoki事件对冬季北半球平流层臭氧的影响,而减弱La Ni?a Modoki事件对冬季北半球平流层臭氧的影响。WQBO会减弱El Ni?o Modoki而加强La Ni?a Modoki 事件对冬季北半球平流层臭氧的影响。
英文摘要:
      According to composite analysis, the independent and joint impacts of the second kind of El Ni?o-Southern Oscillation (ENSO Modoki) and Quasi-biennial Oscillation (QBO) on stratospheric ozone in the Northern Hemisphere (NH) in winter were investigated by using observed ozone data and reanalysis data. The analysis reveals that the stratospheric ozone in the NH in winter increased during El Ni?o Modoki events but decreased during La Ni?a Modoki events. Stratospheric ozone in the NH in winter increased in the east wind phase of QBO (EQBO) and decreased in the west wind phase of QBO (WQBO). In contrast, the stratospheric ozone anomalies in middle and high latitudes caused by ENSO activity was evidently larger than that related to QBO phases. Further analysis have found that during the EQBO phase the stratospheric ozone anomalies in the NH were amplified in El Ni?o Modoki events but reduced in La Ni?a Modoki events. During WQBO phases, the El Ni?o Modoki events only weakly increased the stratosphere ozone concentration in the NH in winter, while the ozone concentration was greatly reduced during the La Ni?a Modoki events. Therefore, EQBO enhanced the effect of El Ni?o Modoki events on stratospheric ozone in the NH, but weakened the effect of La Ni?a Modoki events. WQBO weakened the effect of El Ni?o Modoki on stratospheric ozone in the NH, and vice versa for the effect of La Ni?a Modoki events.
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