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Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative
Lamy, K. and Portafaix, T. and Josse, B. and Brogniez, C. and Godin-Beekmann, S. and Bencherif, H. and Revell, L. and Akiyoshi, H. and Bekki, S. and Hegglin, M. I. and Jöckel, Patrick and Kirner, O. and Liley, B. and Marecal, V. and Morgenstern, O. and Stenke, A. and Zeng, G. and Abraham, N. L. and Archibald, A. T. and Butchart, N. and Chipperfield, M. P. and Di Genova, G. and Deushi, M. and Dhomse, S. S. and Hu, R.-M. and Kinnison, D. and Kotkamp, M. and McKenzie, R. and Michou, M. and O'Connor, F. M. and Oman, L. D. and Pitari, G. and Plummer, D. A. and Pyle, J. A. and Rozanov, E. and Saint-Martin, D. and Sudo, K. and Tanaka, T. Y. and Visioni, D. and Yoshida, K.
(2019)
Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative.
Atmospheric Chemistry and Physics (ACP), 19 (15), pp. 10087-10110.
Copernicus Publications.
doi: 10.5194/acp-19-10087-2019.
ISSN 1680-7316.
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Official URL: https://www.atmos-chem-phys.net/19/10087/2019/ AbstractWe 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∘ N–30∘ 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. Item URL in elib: | https://elib.dlr.de/128762/ |
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Document Type: | Article |
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Title: | Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative |
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Authors: | Authors | Institution or Email of Authors | Author's ORCID iD |
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Lamy, K. | LACy, Laboratoire de l'Atmosphère et des Cyclones (UMR 8105 CNRS, Université de La Réunion, Météo-France), Saint-Denis de La Réunion, France | UNSPECIFIED | Portafaix, T. | LACy, Laboratoire de l'Atmosphère et des Cyclones (UMR 8105 CNRS, Université de La Réunion, Météo-France), Saint-Denis de La Réunion, France | UNSPECIFIED | Josse, B. | Centre National de Recherches Météorologiques (CNRM) UMR 3589, Météo-France/CNRS, Toulouse, France | UNSPECIFIED | Brogniez, C. | Laboratoire d'Optique Atmosphérique (LOA), Université de Lille, Faculté des Sciences et Technologies, Villeneuve d'Ascq, France | UNSPECIFIED | Godin-Beekmann, S. | Laboratoire Atmosphères, Milieux, Observations Spatiales, Service d'Aéronomie (LATMOS), CNRS, Institut Pierre Simon Laplace, Pierre et Marie Curie University, Paris, France | UNSPECIFIED | Bencherif, H. | School of Chemistry and Physics, University of KwaZulu Natal, Durban, South Africa | UNSPECIFIED | Revell, L. | Institute for Atmospheric and Climate Science, ETH Zürich (ETHZ), Zürich, Switzerland | https://orcid.org/0000-0002-8974-7703 | Akiyoshi, H. | National Institute of Environmental Studies (NIES), Tsukuba, Japan | https://orcid.org/0000-0001-6463-9004 | Bekki, S. | Laboratoire Atmosphères, Milieux, Observations Spatiales, Service d'Aéronomie (LATMOS), CNRS, Institut Pierre Simon Laplace, Pierre et Marie Curie University, Paris, France | https://orcid.org/0000-0002-5538-0800 | Hegglin, M. I. | Department of Meteorology, University of Reading, Reading, UK | https://orcid.org/0000-0003-2820-9044 | Jöckel, Patrick | DLR, IPA | https://orcid.org/0000-0002-8964-1394 | Kirner, O. | Steinbuch Centre for Computing, Karlsruhe Institute of Technology, Karlsruhe, Germany | https://orcid.org/0000-0001-5668-6177 | Liley, B. | National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand | https://orcid.org/0000-0002-8844-7928 | Marecal, V. | Centre National de Recherches Météorologiques (CNRM) UMR 3589, Météo-France/CNRS, Toulouse, France | UNSPECIFIED | Morgenstern, O. | National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand | https://orcid.org/0000-0002-9967-9740 | Stenke, A. | Institute for Atmospheric and Climate Science, ETH Zürich (ETHZ), Zürich, Switzerland | https://orcid.org/0000-0002-5916-4013 | Zeng, G. | National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand | https://orcid.org/0000-0002-9356-5021 | Abraham, N. L. | Department of Chemistry, University of Cambridge, Cambridge, UK | https://orcid.org/0000-0003-3750-3544 | Archibald, A. T. | Department of Chemistry, University of Cambridge, Cambridge, UK | https://orcid.org/0000-0001-9302-4180 | Butchart, N. | Met Office Hadley Centre (MOHC), Exeter, UK | UNSPECIFIED | Chipperfield, M. P. | School of Earth and Environment, University of Leeds, Leeds, UK | https://orcid.org/0000-0002-6803-4149 | Di Genova, G. | Department of Physical and Chemical Sciences, Universitá dell'Aquila, L'Aquila, Italy | UNSPECIFIED | Deushi, M. | Meteorological Research Institute (MRI), Tsukuba, Japan | UNSPECIFIED | Dhomse, S. S. | School of Earth and Environment, University of Leeds, Leeds, UK | https://orcid.org/0000-0003-3854-5383 | Hu, R.-M. | Laboratoire Atmosphères, Milieux, Observations Spatiales, Service d'Aéronomie (LATMOS), CNRS, Institut Pierre Simon Laplace, Pierre et Marie Curie University, Paris, France | UNSPECIFIED | Kinnison, D. | National Center for Atmospheric Research (NCAR), Boulder, Colorado, USA | UNSPECIFIED | Kotkamp, M. | National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand | UNSPECIFIED | McKenzie, R. | National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand | UNSPECIFIED | Michou, M. | Centre National de Recherches Météorologiques (CNRM) UMR 3589, Météo-France/CNRS, Toulouse, France | UNSPECIFIED | O'Connor, F. M. | Met Office Hadley Centre (MOHC), Exeter, UK | UNSPECIFIED | Oman, L. D. | National Aeronautics and Space Administration Goddard Space Flight Center (NASA GSFC), Greenbelt, Maryland, USA | UNSPECIFIED | Pitari, G. | Department of Physical and Chemical Sciences, Universitá dell'Aquila, L'Aquila, Italy | UNSPECIFIED | Plummer, D. A. | Environment and Climate Change Canada, Montréal, Canada | UNSPECIFIED | Pyle, J. A. | Department of Chemistry, University of Cambridge, Cambridge, UK | https://orcid.org/0000-0003-3629-9916 | Rozanov, E. | Institute for Atmospheric and Climate Science, ETH Zürich (ETHZ), Zürich, Switzerland | UNSPECIFIED | Saint-Martin, D. | Centre National de Recherches Météorologiques (CNRM) UMR 3589, Météo-France/CNRS, Toulouse, France | https://orcid.org/0000-0002-8478-6914 | Sudo, K. | Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan | https://orcid.org/0000-0002-5013-4168 | Tanaka, T. Y. | Meteorological Research Institute (MRI), Tsukuba, Japan | https://orcid.org/0000-0003-0600-2122 | Visioni, D. | Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA | https://orcid.org/0000-0002-7342-2189 | Yoshida, K. | Meteorological Research Institute (MRI), Tsukuba, Japan | https://orcid.org/0000-0002-2422-5584 |
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Date: | 12 August 2019 |
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Journal or Publication Title: | Atmospheric Chemistry and Physics (ACP) |
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Refereed publication: | Yes |
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Open Access: | Yes |
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Gold Open Access: | Yes |
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In SCOPUS: | Yes |
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In ISI Web of Science: | Yes |
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Volume: | 19 |
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DOI: | 10.5194/acp-19-10087-2019 |
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Page Range: | pp. 10087-10110 |
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Publisher: | Copernicus Publications |
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ISSN: | 1680-7316 |
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Status: | Published |
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Keywords: | ultraviolot radiation, clear-sky, CCMI, EMAC, MESSy, ozone,
chemistry-climate modelling |
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HGF - Research field: | Aeronautics, Space and Transport |
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HGF - Program: | Space |
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HGF - Program Themes: | Earth Observation |
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DLR - Research area: | Raumfahrt |
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DLR - Program: | R EO - Earth Observation |
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DLR - Research theme (Project): | R - Atmospheric and climate research, R - Project Climatic relevance of atmospheric tracer gases, aerosols and clouds |
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Location: |
Oberpfaffenhofen
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Institutes and Institutions: | Institute of Atmospheric Physics > Earth System Modelling |
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Deposited By: |
Jöckel, Dr. Patrick
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Deposited On: | 13 Aug 2019 08:42 |
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Last Modified: | 13 Aug 2019 08:42 |
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