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DOI | 10.5194/acp-19-10087-2019 |
Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative | |
Lamy, Kevin1; 39;Connor, Fiona M.2 | |
2019-08-12 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:15页码:10087-10110 |
文章类型 | Article |
语种 | 英语 |
国家 | France; South Africa; Switzerland; New Zealand; Japan; England; Germany; Italy; USA; Canada |
英文摘要 | We have derived values of the ultraviolet index (UVI) at solar noon using the Tropospheric Ultraviolet Model (TUV) driven by ozone, temperature and aerosol fields from climate simulations of the first phase of the Chemistry-Climate Model Initiative (CCMI-1). Since clouds remain one of the largest uncertainties in climate projections, we simulated only the clear-sky UVI. We compared the modelled UVI climatologies against present-day climatological values of UVI derived from both satellite data (the OMI-Aura OMUVBd product) and ground-based measurements (from the NDACC network). Depending on the region, relative differences between the UVI obtained from CCMI/TUV calculations and the ground-based measurements ranged between - 5.9 % and 10.6 %. We then calculated the UVI evolution throughout the 21st century for the four Representative Concentration Pathways (RCPs 2.6, 4.5, 6.0 and 8.5). Compared to 1960s values, we found an average increase in the UVI in 2100 (of 2 %-4 %) in the tropical belt (30 degrees N-30 degrees S). For the mid-latitudes, we observed a 1.8 % to 3.4 % increase in the Southern Hemisphere for RCPs 2.6, 4.5 and 6.0 and found a 2.3 % decrease in RCP 8.5. Higher increases in UVI are projected in the Northern Hemisphere except for RCP 8.5. At high latitudes, ozone recovery is well identified and induces a complete return of mean UVI levels to 1960 values for RCP 8.5 in the Southern Hemisphere. In the Northern Hemisphere, UVI levels in 2100 are higher by 0.5 % to 5.5 % for RCPs 2.6, 4.5 and 6.0 and they are lower by 7.9 % for RCP 8.5. We analysed the impacts of greenhouse gases (GHGs) and ozone-depleting substances (ODSs) on UVI from 1960 by comparing CCMI sensitivity simulations (1960-2100) with fixed GHGs or ODSs at their respective 1960 levels. As expected with ODS fixed at their 1960 levels, there is no large decrease in ozone levels and consequently no sudden increase in UVI levels. With fixed GHG, we observed a delayed return of ozone to 1960 values, with a corresponding pattern of change observed on UVI, and looking at the UVI difference between 2090s values and 1960s values, we found an 8 % increase in the tropical belt during the summer of each hemisphere. Finally we show that, while in the Southern Hemisphere the UVI is mainly driven by total ozone column, in the Northern Hemisphere both total ozone column and aerosol optical depth drive UVI levels, with aerosol optical depth having twice as much influence on the UVI as total ozone column does. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000480463900001 |
WOS关键词 | REPRESENTATIVE CONCENTRATION PATHWAYS ; ABSORPTION CROSS-SECTIONS ; OZONE RETURN DATES ; SOLAR UV-RADIATION ; STRATOSPHERIC OZONE ; SATELLITE MEASUREMENTS ; TROPOSPHERIC OZONE ; MIDDLE ATMOSPHERE ; PART 1 ; VERSION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185948 |
专题 | 地球科学 |
作者单位 | 1.Univ La Reunion, Lab Atmosphere & Cyclones, LACy, Meteo France,UMR CNRS 8105, St Denis, La Reunion, France; 2.CNRM UMR 3589, Meteo France, CNRS, Toulouse, France; 3.Univ Lille, Fac Sci & Technol, LOA, Villeneuve Dascq, France; 4.Pierre & Marie Curie Univ, Inst Pierre Simon Laplace, Serv Aeron LATMOS, Lab Atmospheres Milieux Observat Spatiales,CNRS, Paris, France; 5.Univ KwaZulu Natal, Sch Chem & Phys, Durban, South Africa; 6.ETH Zurich ETHZ, Inst Atmospher & Climate Sci, Zurich, Switzerland; 7.Bodeker Sci, Christchurch, New Zealand; 8.Univ Canterbury, Sch Phys & Chem Sci, Christchurch, New Zealand; 9.Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan; 10.Univ Reading, Dept Meteorol, Reading, Berks, England; 11.Deutsch Zentrum Luft & Raumfahrt DLR, Inst Phys Atmosphare, Oberpfaffenhofen, Germany; 12.Karlsruhe Inst Technol, Steinbuch Ctr Comp, Karlsruhe, Germany; 13.Natl Inst Water & Atmospher Res NIWA, Wellington, New Zealand; 14.Univ Cambridge, Dept Chem, Cambridge, England; 15.Natl Ctr Atmospher Sci, Cambridge, England; 16.Met Off Hadley Ctr, Exeter, Devon, England; 17.Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England; 18.Univ Aquila, Dept Phys & Chem Sci, Laquila, Italy; 19.Meteorol Res Inst, Tsukuba, Ibaraki, Japan; 20.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 21.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 22.Environm & Climate Change Canada, Montreal, PQ, Canada; 23.World Radiat Ctr, Phys Meteorol Observatorium Davos, Davos, Switzerland; 24.Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi, Japan; 25.Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14853 USA |
推荐引用方式 GB/T 7714 | Lamy, Kevin,39;Connor, Fiona M.. Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(15):10087-10110. |
APA | Lamy, Kevin,&39;Connor, Fiona M..(2019).Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(15),10087-10110. |
MLA | Lamy, Kevin,et al."Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.15(2019):10087-10110. |
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