Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event
The role of sea ice in the climate response after the 536 and 540 CE volcanic eruptions hasbeen investigated through MPI-ESM simulations with imposed volcanic forcing. There is aclear response in the Arctic sea-ice cover to the volcanic forcing. The largest sea-ice areaanomalies are found in the sum...
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ftoslouniv:oai:www.duo.uio.no:10852/80591 2023-05-15T14:57:17+02:00 Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event Aukan, Ingvild Sofie Sundby 2020 http://hdl.handle.net/10852/80591 http://urn.nb.no/URN:NBN:no-83683 eng eng http://urn.nb.no/URN:NBN:no-83683 Aukan, Ingvild Sofie Sundby. Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event. Master thesis, University of Oslo, 2020 http://hdl.handle.net/10852/80591 URN:NBN:no-83683 Fulltext https://www.duo.uio.no/bitstream/handle/10852/80591/1/Master_Thesis_final.pdf Master thesis Masteroppgave 2020 ftoslouniv 2020-10-14T22:30:31Z The role of sea ice in the climate response after the 536 and 540 CE volcanic eruptions hasbeen investigated through MPI-ESM simulations with imposed volcanic forcing. There is aclear response in the Arctic sea-ice cover to the volcanic forcing. The largest sea-ice areaanomalies are found in the summer/autumn following each of the eruptions, when it is foundto be up to 1.6*1012m2(24%) larger relative to the mean of the pre-industrial control run.There is a large spatial variability both in the sea-ice response and the surface temperatureanomalies. The strongest surface cooling is found in the Arctic, where the mean temperatureanomaly reaches -4.0oC after each of the eruptions, compared to a minimum of -1.5oC and-2.0oC in the NH mean after the 536 and 540 CE eruptions respectively. A prominent patternof negative temperature anomalies is found along the sea-ice edge. The most anomaloussea-ice cover is found in the Barents Sea and the Labrador Sea. The timing and spatialdistribution of surface temperature anomalies after the eruptions is more consistent withchanges in the sea-ice cover and subsequent modification of ocean currents, than with the decreased insolation directly or the dynamical response of the atmosphere. Master Thesis Arctic Barents Sea Labrador Sea Sea ice Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Barents Sea |
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Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
The role of sea ice in the climate response after the 536 and 540 CE volcanic eruptions hasbeen investigated through MPI-ESM simulations with imposed volcanic forcing. There is aclear response in the Arctic sea-ice cover to the volcanic forcing. The largest sea-ice areaanomalies are found in the summer/autumn following each of the eruptions, when it is foundto be up to 1.6*1012m2(24%) larger relative to the mean of the pre-industrial control run.There is a large spatial variability both in the sea-ice response and the surface temperatureanomalies. The strongest surface cooling is found in the Arctic, where the mean temperatureanomaly reaches -4.0oC after each of the eruptions, compared to a minimum of -1.5oC and-2.0oC in the NH mean after the 536 and 540 CE eruptions respectively. A prominent patternof negative temperature anomalies is found along the sea-ice edge. The most anomaloussea-ice cover is found in the Barents Sea and the Labrador Sea. The timing and spatialdistribution of surface temperature anomalies after the eruptions is more consistent withchanges in the sea-ice cover and subsequent modification of ocean currents, than with the decreased insolation directly or the dynamical response of the atmosphere. |
format |
Master Thesis |
author |
Aukan, Ingvild Sofie Sundby |
spellingShingle |
Aukan, Ingvild Sofie Sundby Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event |
author_facet |
Aukan, Ingvild Sofie Sundby |
author_sort |
Aukan, Ingvild Sofie Sundby |
title |
Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event |
title_short |
Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event |
title_full |
Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event |
title_fullStr |
Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event |
title_full_unstemmed |
Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event |
title_sort |
sea-ice response to the 536/540 ce double volcanic eruption event |
publishDate |
2020 |
url |
http://hdl.handle.net/10852/80591 http://urn.nb.no/URN:NBN:no-83683 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Labrador Sea Sea ice |
genre_facet |
Arctic Barents Sea Labrador Sea Sea ice |
op_relation |
http://urn.nb.no/URN:NBN:no-83683 Aukan, Ingvild Sofie Sundby. Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event. Master thesis, University of Oslo, 2020 http://hdl.handle.net/10852/80591 URN:NBN:no-83683 Fulltext https://www.duo.uio.no/bitstream/handle/10852/80591/1/Master_Thesis_final.pdf |
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1766329366746234880 |