气候变化领域集成服务门户(CCPortal): Seasonal characteristics of trace gas transport into the extratropical upper troposphere and lower stratosphere

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DOI	10.5194/acp-19-7073-2019
	Seasonal characteristics of trace gas transport into the extratropical upper troposphere and lower stratosphere
	Inai Y.; Fujita R.; Machida T.; Matsueda H.; Sawa Y.; Tsuboi K.; Katsumata K.; Morimoto S.; Aoki S.; Nakazawa T.
发表日期	2019
ISSN	16807316
起始页码	7073
结束页码	7103
卷号	19 期号:10
英文摘要	To investigate the seasonal characteristics of trace gas distributions in the extratropical upper troposphere and lower stratosphere (ExUTLS) as well as stratosphere-troposphere exchange processes, origin fractions of air masses originating in the stratosphere, tropical troposphere, midlatitude lower troposphere (LT), and high-latitude LT in the ExUTLS are estimated using 10-year backward trajectories calculated with European Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim data as the meteorological input. Time series of trace gases obtained from ground-based and airborne observations are incorporated into the trajectories, thus reconstructing spatiotemporal distributions of trace gases in the ExUTLS. The reconstructed tracer distributions are analyzed with the origin fractions and the stratospheric age of air (AoA) estimated using the backward trajectories. The reconstructed distributions of SF6 and CO2 in the ExUTLS are linearly correlated with those of AoA because of their chemically passive behavior and quasi-stable increasing trends in the troposphere. Distributions of CH4, N2O, and CO are controlled primarily by chemical decay along the transport path from the source region via the stratosphere and subsequent mixing of such stratospheric air masses with tropospheric air masses in the ExUTLS. © Author(s) 2019.
语种	英语
scopus关键词	air mass; atmospheric chemistry; spatial distribution; stratosphere; trace gas; trend analysis; troposphere; weather forecasting
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144376
作者单位	Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan; Department of Physics, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom; National Institute for Environmental Studies, Center for Global Environmental Research, Tsukuba, 305-8506, Japan; Meteorological Research Institute, Department of Climate and Geochemistry Research, Tsukuba, 305-0052, Japan; Takachiho Chemical Industrial Co. Ltd., Tokyo, 194-0004, Japan; Global Environment and Marine Department, Japan Meteorological Agency, Tokyo, 100-8122, Japan
推荐引用方式 GB/T 7714	Inai Y.,Fujita R.,Machida T.,et al. Seasonal characteristics of trace gas transport into the extratropical upper troposphere and lower stratosphere[J],2019,19(10).
APA	Inai Y..,Fujita R..,Machida T..,Matsueda H..,Sawa Y..,...&Nakazawa T..(2019).Seasonal characteristics of trace gas transport into the extratropical upper troposphere and lower stratosphere.Atmospheric Chemistry and Physics,19(10).
MLA	Inai Y.,et al."Seasonal characteristics of trace gas transport into the extratropical upper troposphere and lower stratosphere".Atmospheric Chemistry and Physics 19.10(2019).