dc.contributor.author | Aukan, Ingvild Sofie Sundby | |
dc.date.accessioned | 2020-10-12T23:45:46Z | |
dc.date.available | 2020-10-12T23:45:46Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Aukan, Ingvild Sofie Sundby. Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event. Master thesis, University of Oslo, 2020 | |
dc.identifier.uri | http://hdl.handle.net/10852/80591 | |
dc.description.abstract | 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. | eng |
dc.language.iso | eng | |
dc.subject | | |
dc.title | Sea-ice Response to the 536/540 CE Double Volcanic Eruption Event | eng |
dc.type | Master thesis | |
dc.date.updated | 2020-10-12T23:45:45Z | |
dc.creator.author | Aukan, Ingvild Sofie Sundby | |
dc.identifier.urn | URN:NBN:no-83683 | |
dc.type.document | Masteroppgave | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/80591/1/Master_Thesis_final.pdf | |