气候变化领域集成服务门户(CCPortal): Improved FTIR retrieval strategy for HCFC-22 (CHClF2); comparisons with in situ and satellite datasets with the support of models; and determination of its long-Term trend above Jungfraujoch

CCPortal

DOI	10.5194/acp-19-12309-2019
	Improved FTIR retrieval strategy for HCFC-22 (CHClF2); comparisons with in situ and satellite datasets with the support of models; and determination of its long-Term trend above Jungfraujoch
	Prignon M.; Chabrillat S.; Minganti D.; O'Doherty S.; Servais C.; Stiller G.; Toon G.C.; Vollmer M.K.; Mahieu E.
发表日期	2019
ISSN	16807316
起始页码	12309
结束页码	12324
卷号	19 期号:19
英文摘要	Hydrochlorofluorocarbons (HCFCs) are the first, but temporary, substitution products for the strong ozonedepleting chlorofluorocarbons (CFCs). HCFC consumption and production are currently regulated under the Montreal Protocol on Substances that Deplete the Ozone Layer and their emissions have started to stabilize or even decrease. As HCFC-22 (CHClF2) is by far the most abundant HCFC in today's atmosphere, it is crucial to continue to monitor the evolution of its atmospheric concentration. In this study, we describe an improved HCFC-22 retrieval strategy from groundbased high-resolution Fourier transform infrared (FTIR) solar spectra recorded at the high-Altitude scientific station of Jungfraujoch, the Swiss Alps, 3580ma.m.s.l. (above mean sea level). This new strategy distinguishes tropospheric and lower-stratospheric partial columns. Comparisons with independent datasets, such as the Advanced Global Atmospheric Gases Experiment (AGAGE) and the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), supported by models, such as the Belgian Assimilation System for Chemical ObErvation (BASCOE) and the Whole Atmosphere Community Climate Model (WACCM), demonstrate the validity of our tropospheric and lower-stratospheric longterm time series. A trend analysis on the datasets used here, now spanning 30 years, confirms the last decade's decline in the HCFC-22 growth rate. This updated retrieval strategy can be adapted for other ozone-depleting substances (ODSs), such as CFC-12. Measuring or retrieving ODS atmospheric concentrations is essential for scrutinizing the fulfilment of the globally ratified Montreal Protocol. © 2019 Author(s).
语种	英语
scopus关键词	atmospheric chemistry; CFC; comparative study; concentration (composition); FTIR spectroscopy; ground-based measurement; hydrofluorocarbon; in situ measurement; Montreal Protocol; ozone depletion; satellite data; stratosphere; troposphere; Bern [Switzerland]; Jungfraujoch; Switzerland
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/144117
作者单位	Institute of Astrophysics and Geophysics, University of Liège, Liège, Belgium; Royal Belgian Institute for Space Aeronomy, Brussels, Belgium; Atmospheric Chemistry Research Group, School of Chemistry, University of Bristol, Bristol, United Kingdom; Karlsruhe Institute of Technology, Karlsruhe, Germany; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Laboratory for Air Pollution and Environmental Technology, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
推荐引用方式 GB/T 7714	Prignon M.,Chabrillat S.,Minganti D.,et al. Improved FTIR retrieval strategy for HCFC-22 (CHClF2); comparisons with in situ and satellite datasets with the support of models; and determination of its long-Term trend above Jungfraujoch[J],2019,19(19).
APA	Prignon M..,Chabrillat S..,Minganti D..,O'Doherty S..,Servais C..,...&Mahieu E..(2019).Improved FTIR retrieval strategy for HCFC-22 (CHClF2); comparisons with in situ and satellite datasets with the support of models; and determination of its long-Term trend above Jungfraujoch.Atmospheric Chemistry and Physics,19(19).
MLA	Prignon M.,et al."Improved FTIR retrieval strategy for HCFC-22 (CHClF2); comparisons with in situ and satellite datasets with the support of models; and determination of its long-Term trend above Jungfraujoch".Atmospheric Chemistry and Physics 19.19(2019).