气候变化领域集成服务门户(CCPortal): Tracers for evaluating computational models of atmospheric transport and oxidation at regional to global scales

CCPortal

DOI	10.1016/j.atmosenv.2020.118074
	Tracers for evaluating computational models of atmospheric transport and oxidation at regional to global scales
	Simmonds P.G.; Palmer P.I.; Rigby M.; McCulloch A.; O'Doherty S.; Manning A.J.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	Atmospheric tracers are effective tools for characterizing dispersion and for testing computational models of atmospheric transport. Atmospheric trace gas measurements are now used widely to infer geographical surface flux distributions. However, robust flux estimates critically rely on well-validated knowledge of atmospheric chemistry, loss processes and transport, without which we are not fully realizing the potential of atmospheric measurements collected on the ground, or from aircraft and satellites. This challenge has taken on renewed importance in the shadow of the Paris Agreement that will likely take advantage of atmospheric trace gas measurements to help improve national and global greenhouse gas emission budgets. We describe a wide range of existing and new potential atmospheric tracers for improving our understanding of atmospheric dispersion. We consider the investigation of atmospheric transport over two scales: (1) short-to-medium length scale (on the order of 1–1000 km) to improve our understanding of convection and boundary layer transport processes, and (2) hemisphere-to-global length scale (on the order of 1000–10,000 km), where large-scale mixing, cross hemisphere transport and stratosphere-troposphere exchange are important. Although we note the possibility of using “tracers of opportunity,” our primary focus is on deliberate-release tracers, and we explore the use of cyclic perfluorocarbons, hydrofluorocarbons, hydrochlorofluorocarbons, hydrofluoroethers and novel tracers of deuterium-substituted halocarbons. We examine how we might exploit existing instrumentation already deployed at remote global monitoring sites as well as requirements for new instrumentation. To guide the discussion, we provide example scenarios for how experiments might be set up, covering regional to global spatial scales for the evaluation and improvement of atmospheric transport models. However, we stress that appropriate three-dimensional modelling studies and preliminary experiments would need to be carried out to determine the specific details of any real-world experiment. © 2020 Elsevier Ltd
关键词	Deliberate-release tracers. Atmospheric transport Dispersion and oxidation
语种	英语
scopus关键词	Atmospheric boundary layer; Boundary layer flow; Budget control; Computation theory; Computational methods; Fluorocarbons; Gas fuel measurement; Greenhouse gases; Tracers; Atmospheric dispersion; Atmospheric measurement; Atmospheric transport model; Boundary layer transport; Evaluation and improvement; Hydrochlorofluorocarbons; Stratosphere-troposphere exchange; Three dimensional modelling; Atmospheric chemistry; 1,2 dichloroethane; anion; chlorofluorohydrocarbon; chloroform; deuterium; dichloromethane; fluorinated hydrocarbon; fluorocarbon; fluoroethane; fluoromethane; halocarbon; hydrofluoroether; industrial chemical; methyl chloride; tracer; atmospheric transport; fluorocarbon; greenhouse gas; halocarbon; oxidation; tracer; atmosphere; atmospheric dispersion; atmospheric transport; boiling point; boundary layer; computer model; controlled study; environmental impact; environmental temperature; molecular weight; oxidation; priority journal; remote sensing; thermodynamics; France; Ile de France; Paris; Ville de Paris; Satellites
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248698
作者单位	School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom; School of GeoSciences, University of Edinburgh, Edinburgh, EH9 3FF, United Kingdom; Meteorological Office, Fitzroy Road, Exeter, Devon EX1 3PB, United Kingdom
推荐引用方式 GB/T 7714	Simmonds P.G.,Palmer P.I.,Rigby M.,et al. Tracers for evaluating computational models of atmospheric transport and oxidation at regional to global scales[J],2021,246.
APA	Simmonds P.G.,Palmer P.I.,Rigby M.,McCulloch A.,O'Doherty S.,&Manning A.J..(2021).Tracers for evaluating computational models of atmospheric transport and oxidation at regional to global scales.ATMOSPHERIC ENVIRONMENT,246.
MLA	Simmonds P.G.,et al."Tracers for evaluating computational models of atmospheric transport and oxidation at regional to global scales".ATMOSPHERIC ENVIRONMENT 246(2021).