An Assessment of the Relative Importance of Factors Impacting Surface UV Radiation Based on Simulations of the 6th Phase of the Coupled Intercomparison Project
Aerosols, ozone, surface reflectivity, and clouds are, among other factors, important for the modulation of UV radiation levels at the Earth’s surface. In this study, these variables were extracted from climate model integrations that contributed to CMIP6 and from MACC global reanalysis provided by...
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| Format: | Article |
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MDPI AG
2023-08-01
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| Series: | Environmental Sciences Proceedings |
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| Online Access: | https://www.mdpi.com/2673-4931/26/1/119 |
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| author | Anthi Chatzopoulou Kleareti Tourpali Alkiviadis F. Bais Peter Braesicke Roland Ruhnke |
| author_facet | Anthi Chatzopoulou Kleareti Tourpali Alkiviadis F. Bais Peter Braesicke Roland Ruhnke |
| author_sort | Anthi Chatzopoulou |
| collection | DOAJ |
| description | Aerosols, ozone, surface reflectivity, and clouds are, among other factors, important for the modulation of UV radiation levels at the Earth’s surface. In this study, these variables were extracted from climate model integrations that contributed to CMIP6 and from MACC global reanalysis provided by the CAMS. From the 1950s until the end of the 21st century and for various shared socioeconomic pathways considered by CMIP6, we conclude that total ozone will increase globally in 2100 by up to 11% under SSP5–8.5 relative to the 1950s, while under SSP1–2.6, ozone is not projected to recover to pre-ozone depletion levels. AOD at 550 nm shows reductions in 2090–2100 over the Northern Hemisphere of up to −0.38. Compared to CAMS, CMIP6 models show a general overestimation for total ozone of up to 2.5% in extra-polar regions for models with interactive chemistry. This implies systematically lower UV radiation from models based on these projections. |
| first_indexed | 2024-04-24T18:17:51Z |
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| id | doaj.art-3cc94aa73d3e49288a61c5bfc925f302 |
| institution | Directory Open Access Journal |
| issn | 2673-4931 |
| language | English |
| last_indexed | 2024-04-24T18:17:51Z |
| publishDate | 2023-08-01 |
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| series | Environmental Sciences Proceedings |
| spelling | doaj.art-3cc94aa73d3e49288a61c5bfc925f3022024-03-27T13:37:23ZengMDPI AGEnvironmental Sciences Proceedings2673-49312023-08-0126111910.3390/environsciproc2023026119An Assessment of the Relative Importance of Factors Impacting Surface UV Radiation Based on Simulations of the 6th Phase of the Coupled Intercomparison ProjectAnthi Chatzopoulou0Kleareti Tourpali1Alkiviadis F. Bais2Peter Braesicke3Roland Ruhnke4Laboratory of Atmospheric Physics, Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Atmospheric Physics, Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Atmospheric Physics, Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceInstitute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76021 Karlsruhe, GermanyInstitute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76021 Karlsruhe, GermanyAerosols, ozone, surface reflectivity, and clouds are, among other factors, important for the modulation of UV radiation levels at the Earth’s surface. In this study, these variables were extracted from climate model integrations that contributed to CMIP6 and from MACC global reanalysis provided by the CAMS. From the 1950s until the end of the 21st century and for various shared socioeconomic pathways considered by CMIP6, we conclude that total ozone will increase globally in 2100 by up to 11% under SSP5–8.5 relative to the 1950s, while under SSP1–2.6, ozone is not projected to recover to pre-ozone depletion levels. AOD at 550 nm shows reductions in 2090–2100 over the Northern Hemisphere of up to −0.38. Compared to CAMS, CMIP6 models show a general overestimation for total ozone of up to 2.5% in extra-polar regions for models with interactive chemistry. This implies systematically lower UV radiation from models based on these projections.https://www.mdpi.com/2673-4931/26/1/119CMIP6ozonesurface reflectivityaerosolcloud modification factor |
| spellingShingle | Anthi Chatzopoulou Kleareti Tourpali Alkiviadis F. Bais Peter Braesicke Roland Ruhnke An Assessment of the Relative Importance of Factors Impacting Surface UV Radiation Based on Simulations of the 6th Phase of the Coupled Intercomparison Project Environmental Sciences Proceedings CMIP6 ozone surface reflectivity aerosol cloud modification factor |
| title | An Assessment of the Relative Importance of Factors Impacting Surface UV Radiation Based on Simulations of the 6th Phase of the Coupled Intercomparison Project |
| title_full | An Assessment of the Relative Importance of Factors Impacting Surface UV Radiation Based on Simulations of the 6th Phase of the Coupled Intercomparison Project |
| title_fullStr | An Assessment of the Relative Importance of Factors Impacting Surface UV Radiation Based on Simulations of the 6th Phase of the Coupled Intercomparison Project |
| title_full_unstemmed | An Assessment of the Relative Importance of Factors Impacting Surface UV Radiation Based on Simulations of the 6th Phase of the Coupled Intercomparison Project |
| title_short | An Assessment of the Relative Importance of Factors Impacting Surface UV Radiation Based on Simulations of the 6th Phase of the Coupled Intercomparison Project |
| title_sort | assessment of the relative importance of factors impacting surface uv radiation based on simulations of the 6th phase of the coupled intercomparison project |
| topic | CMIP6 ozone surface reflectivity aerosol cloud modification factor |
| url | https://www.mdpi.com/2673-4931/26/1/119 |
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