Fate of volcanic ash: Aggregation and fallout
While suspended in Earth's atmosphere, fine ash influences radiative transfer, weather, and climate (e.g., Newhall and Self, 1982). Sulfate aerosol, also in volcanic ash clouds, dominates atmospheric effects, having stratospheric residence times of months to years (Robock, 2000), so large erupt...
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ftmichigantuniv:oai:digitalcommons.mtu.edu:geo-fp-1014 2023-05-15T16:09:33+02:00 Fate of volcanic ash: Aggregation and fallout Rose, William I. Durant, Adam J. 2011-08-19T07:00:00Z https://digitalcommons.mtu.edu/geo-fp/13 https://doi.org/10.1130/focus092011.1 unknown Digital Commons @ Michigan Tech https://digitalcommons.mtu.edu/geo-fp/13 http://dx.doi.org/10.1130/focus092011.1 Department of Geological and Mining Engineering and Sciences Publications Earth Sciences Engineering Geology Mining Engineering Other Engineering text 2011 ftmichigantuniv https://doi.org/10.1130/focus092011.1 2022-01-23T10:31:51Z While suspended in Earth's atmosphere, fine ash influences radiative transfer, weather, and climate (e.g., Newhall and Self, 1982). Sulfate aerosol, also in volcanic ash clouds, dominates atmospheric effects, having stratospheric residence times of months to years (Robock, 2000), so large eruptions may have widespread consequences (Robock et al., 2009). During the eruptions in Iceland (Eyjafjallajökull in 2010, and Grimsvötn in 2011), and Chile (Puyehue-Cordon Caulle in 2011), operational ash-cloud forecast models have over-estimated far-field atmospheric ash concentrations compared to aircraft and satellite observations (Schumann et al., 2011; Stohl et al., 2011). These models do not account for fine-ash (<63 μm) particle aggregation, which results in under-prediction of proximal fine-ash sedimentation and over-prediction of distal (hundreds to thousands of kilometers) fine-ash sedimentation. This oversight can result in the closure of airspace, that would otherwise be safe. Text Eyjafjallajökull Iceland Michigan Technological University: Digital Commons @ Michigan Tech Schumann ENVELOPE(-73.691,-73.691,-71.641,-71.641) Geology 39 9 895 896 |
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Michigan Technological University: Digital Commons @ Michigan Tech |
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Earth Sciences Engineering Geology Mining Engineering Other Engineering |
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Earth Sciences Engineering Geology Mining Engineering Other Engineering Rose, William I. Durant, Adam J. Fate of volcanic ash: Aggregation and fallout |
topic_facet |
Earth Sciences Engineering Geology Mining Engineering Other Engineering |
description |
While suspended in Earth's atmosphere, fine ash influences radiative transfer, weather, and climate (e.g., Newhall and Self, 1982). Sulfate aerosol, also in volcanic ash clouds, dominates atmospheric effects, having stratospheric residence times of months to years (Robock, 2000), so large eruptions may have widespread consequences (Robock et al., 2009). During the eruptions in Iceland (Eyjafjallajökull in 2010, and Grimsvötn in 2011), and Chile (Puyehue-Cordon Caulle in 2011), operational ash-cloud forecast models have over-estimated far-field atmospheric ash concentrations compared to aircraft and satellite observations (Schumann et al., 2011; Stohl et al., 2011). These models do not account for fine-ash (<63 μm) particle aggregation, which results in under-prediction of proximal fine-ash sedimentation and over-prediction of distal (hundreds to thousands of kilometers) fine-ash sedimentation. This oversight can result in the closure of airspace, that would otherwise be safe. |
format |
Text |
author |
Rose, William I. Durant, Adam J. |
author_facet |
Rose, William I. Durant, Adam J. |
author_sort |
Rose, William I. |
title |
Fate of volcanic ash: Aggregation and fallout |
title_short |
Fate of volcanic ash: Aggregation and fallout |
title_full |
Fate of volcanic ash: Aggregation and fallout |
title_fullStr |
Fate of volcanic ash: Aggregation and fallout |
title_full_unstemmed |
Fate of volcanic ash: Aggregation and fallout |
title_sort |
fate of volcanic ash: aggregation and fallout |
publisher |
Digital Commons @ Michigan Tech |
publishDate |
2011 |
url |
https://digitalcommons.mtu.edu/geo-fp/13 https://doi.org/10.1130/focus092011.1 |
long_lat |
ENVELOPE(-73.691,-73.691,-71.641,-71.641) |
geographic |
Schumann |
geographic_facet |
Schumann |
genre |
Eyjafjallajökull Iceland |
genre_facet |
Eyjafjallajökull Iceland |
op_source |
Department of Geological and Mining Engineering and Sciences Publications |
op_relation |
https://digitalcommons.mtu.edu/geo-fp/13 http://dx.doi.org/10.1130/focus092011.1 |
op_doi |
https://doi.org/10.1130/focus092011.1 |
container_title |
Geology |
container_volume |
39 |
container_issue |
9 |
container_start_page |
895 |
op_container_end_page |
896 |
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1766405411475292160 |