气象科学2023，Vol.43Issue(6)：761-771,11.DOI:10.12306/2023jms.0010
夏季南亚高压对其邻近UTLS区域臭氧分布的影响
Influence of South Asia high on ozone in the UTLS region during summer
摘要
Abstract
Based on the ERA5 high-resolution monthly average reanalysis data provided by the European Centre for Medium-Range Weather Forecasts(ECMWF),the influence of the South Asia High(SAH)on the ozone distribution in the upper troposphere and lower stratosphere during June to August in summer for 30 years from 1991 to 2020 was analyzed.Results show that the ERA5 data can clearly depict the monthly variation and oscillation characteristics of SAH from June to August,and also can well reflect the corresponding low ozone values as a recognized phenomenon.Furthermore,ERA5 data can also reveal a strong link between the range and intensity variation of ozone lows and SAH.When the SAH is anomalously strong(weak),the ozone lows in the neighboring areas strengthen(weaken),and when the center of the SAH oscillates,the low center of the ozone zonal deviation also changes,and this change is more pronounced when the SAH is strong.However,this connection is complex and its correlation varies from month to month.The effect of SAH on ozone concentration is mainly related to the air transport in the troposphere,and the location and extent of the low center of ozone corresponds to the low region of the potential vorticity and the negative values of the potential temperature zonal deviation.关键词
南亚高压/臭氧/ERA5再分析资料/合成分析Key words
SAH/ozone/ERA5 reanalysis data/composite analysis分类
天文与地球科学引用本文复制引用
王佳晨,陈丹,郭栋..夏季南亚高压对其邻近UTLS区域臭氧分布的影响[J].气象科学,2023,43(6):761-771,11.基金项目
国家自然科学基金资助项目(42322503 （）
42175069 （）
91837311 （）
41305038) （）
