Articles | Volume 20, issue 23
https://doi.org/10.5194/acp-20-15461-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-15461-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
11 Dec 2020
Research article | Highlight paper |
| 11 Dec 2020
| 11 Dec 2020
Tropical Pacific climate variability under solar geoengineering: impacts on ENSO extremes
Grantham Institute – Climate Change and the Environment, Imperial
College London,
London, United Kingdom
Oeschger Centre for Climate Change Research and Institute of
Geography, University of
Bern, Bern, Switzerland
King Abdullah University of Science and Technology, Thuwal
23955-6900, Kingdom of Saudi Arabia
Peer J. Nowack
Grantham Institute – Climate Change and the Environment, Imperial
College London,
London, United Kingdom
Blackett Laboratory, Department of Physics, Imperial College London, London,
United Kingdom
Data Science Institute, Imperial College London, London, United Kingdom
School of Environmental Sciences, University of East Anglia, Norwich,
United Kingdom
Joanna D. Haigh
Grantham Institute – Climate Change and the Environment, Imperial
College London,
London, United Kingdom
Blackett Laboratory, Department of Physics, Imperial College London, London,
United Kingdom
Long Cao
School of Earth Sciences, Zhejiang University, Hangzhou, China
Luqman Atique
School of Earth Sciences, Zhejiang University, Hangzhou, China
Yves Plancherel
Grantham Institute – Climate Change and the Environment, Imperial
College London,
London, United Kingdom
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Environmental issues arising due to coastal modification and future sea level scenarios are a major environmental hazard facing the Maldives today. Here, we carry out high-resolution tidal modelling of a Maldivian atoll for the first time and show that coastal modification in the island scale is capable of driving large-scale change in the wider atoll basin in a short time, comparable to that of long-term sea level rise scenarios and on par with observations.
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Short summary
Solar geoengineering has been introduced to mitigate human-caused global warming by reflecting sunlight back into space. This research investigates the impact of solar geoengineering on the tropical Pacific climate. We find that solar geoengineering can compensate some of the greenhouse-induced changes in the tropical Pacific but not all. In particular, solar geoengineering will result in significant changes in rainfall, sea surface temperatures, and increased frequency of extreme ENSO events.
Solar geoengineering has been introduced to mitigate human-caused global warming by reflecting...
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