Did the 2014-15 Holuhraun eruption in Iceland cause surface winter warming in the Arctic? ...
<!--!introduction!--> The 2014-15 Holuhraun eruption in the central highlands of Iceland lasted from late August 2014 to late February 2015 and emitted up to 9.6 Tg of SO 2 , mainly into the lower troposphere. Its effects on aerosol-cloud interactions have been studied extensively but less att...
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| Format: | Conference Object |
| Language: | unknown |
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GFZ German Research Centre for Geosciences
2023
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| Online Access: | https://dx.doi.org/10.57757/iugg23-2244 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018514 |
| Summary: | <!--!introduction!--> The 2014-15 Holuhraun eruption in the central highlands of Iceland lasted from late August 2014 to late February 2015 and emitted up to 9.6 Tg of SO 2 , mainly into the lower troposphere. Its effects on aerosol-cloud interactions have been studied extensively but less attention has been given to other climate impacts. Here we focus on surface climate in the Arctic. We performed two sets of experiments to estimate the climate impacts of this eruption using the Community Earth System Model, version 2.1.3 (CESM2.1.3). In one set, only the atmospheric component was active (CAM6) and the horizontal winds were nudged towards the MERRA-2 reanalysis. For the other set we produced ten ensemble members from free-running, fully-coupled historical simulations. In our model simulations, the eruption lead to the formation of sulphate aerosols which interacted with clouds in the vicinity of the eruption. Since the eruption started in the fall and continued throughout the winter, sunlight was ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
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