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dc.contributor.authorMorison, Conner
dc.contributor.authorStreeter, Richard
dc.identifier.citationMorison , C & Streeter , R 2022 , ' The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers ' , Volcanica , vol. 5 , no. 2 , pp. 227-248 .
dc.identifier.otherPURE: 280898750
dc.identifier.otherPURE UUID: d3d03cc6-4dd0-4625-b30c-459c2223fd8a
dc.identifier.othercrossref: 10.30909/vol.05.02.227248
dc.identifier.otherORCID: /0000-0003-2261-4540/work/117567683
dc.identifier.otherScopus: 85136951900
dc.description.abstractGrain-size distributions and thicknesses of tephra layers are used to reconstruct characteristics, dynamics, and hazards of explosive volcanic eruptions, but the extent to which the preservation of tephra is influenced by depositional environments is unclear. This paper analyses grain-size distributions and thicknesses of tephra layers produced by the Eyjafjallajökull (2010) and Grímsvötn (2011) eruptions. We collected 110 tephra samples and layer thickness measurements from 86 sites at two locations in southern Iceland. Areas of different vegetation cover have varying capacities to affect rates of tephra erosion, retain fallout, or capture remobilised tephra. The Grímsvötn tephra was somewhat coarser-grained and thicker in areas of birch woodland than in adjacent moss heath, but no comparable differences in the Eyjafjallajökull tephra were observed. The spatial variability (over tens of metres) of median particle-size and layer thickness is low, providing confidence that relatively few samples and measurements may be required to capture fallout characteristics.
dc.rightsCopyright © The Author(s) 2022. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en
dc.subjectVolcanic ashen
dc.subjectEruption source parametersen
dc.subjectGB Physical geographyen
dc.titleThe influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layersen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Geography & Sustainable Developmenten
dc.contributor.institutionUniversity of St Andrews. Bell-Edwards Geographic Data Instituteen
dc.contributor.institutionUniversity of St Andrews. Environmental Change Research Groupen
dc.description.statusPeer revieweden

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