气候变化领域集成服务门户(CCPortal): Three-dimensional simulation of stratospheric gravitational separation using the NIES global atmospheric tracer transport model

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DOI	10.5194/acp-19-5349-2019
	Three-dimensional simulation of stratospheric gravitational separation using the NIES global atmospheric tracer transport model
	Belikov D.; Sugawara S.; Ishidoya S.; Hasebe F.; Maksyutov S.; Aoki S.; Morimoto S.; Nakazawa T.
发表日期	2019
ISSN	16807316
起始页码	5349
结束页码	5361
卷号	19 期号:8
英文摘要	A three-dimensional simulation of gravitational separation, defined as the process of atmospheric molecule separation under gravity according to their molar masses, is performed for the first time in the upper troposphere and lower stratosphere. We analyze distributions of two isotopes with a small difference in molecular mass (13C16O2 (Mi = 45) and 12C16O2 (Mi = 44)) simulated by the National Institute for Environmental Studies (NIES) chemical transport model (TM) with a parameterization of molecular diffusion. The NIES model employs global reanalysis and an isentropic vertical coordinate and uses optimized CO2 fluxes. The applicability of the NIES TM to the modeling of gravitational separation is demonstrated by a comparison with measurements recorded by high-precision cryogenic balloon-borne samplers in the lower stratosphere. We investigate the processes affecting the seasonality of gravitational separation and examine the age of air derived from the tracer distributions modeled by the NIES TM.We find a strong relationship between age of air and gravitational separation for the main climatic zones. The advantages and limitations of using age of air and gravitational separation as indicators of the variability in the stratosphere circulation are discussed. © 2019 Author(s).
语种	英语
scopus关键词	atmospheric chemistry; atmospheric circulation; atmospheric transport; carbon flux; parameterization; stratosphere; three-dimensional modeling; tracer
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/144467
作者单位	Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810, Japan; Division of Science Education, Miyagi University of Education, Sendai, 980-0845, Japan; Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8569, Japan; Center for Global Environmental Research, National Institute for Environmental Studies, Tsukuba, 305-8506, Japan; Center for Atmospheric and Oceanic Studies, Tohoku University, Sendai, 980-8578, Japan; Center for Environmental Remote Sensing, Chiba University, Chiba, 263-8522, Japan
推荐引用方式 GB/T 7714	Belikov D.,Sugawara S.,Ishidoya S.,et al. Three-dimensional simulation of stratospheric gravitational separation using the NIES global atmospheric tracer transport model[J],2019,19(8).
APA	Belikov D..,Sugawara S..,Ishidoya S..,Hasebe F..,Maksyutov S..,...&Nakazawa T..(2019).Three-dimensional simulation of stratospheric gravitational separation using the NIES global atmospheric tracer transport model.Atmospheric Chemistry and Physics,19(8).
MLA	Belikov D.,et al."Three-dimensional simulation of stratospheric gravitational separation using the NIES global atmospheric tracer transport model".Atmospheric Chemistry and Physics 19.8(2019).