Living in the Shadow of a Volcano
Mt Erebus is the only active volcano on Ross Island. Though it is currently passively degassing, englacial tephrostratigraphy proves that there have been large eruptions in the past, with enough energy to throw out 4m sized blocks and have ash travel ~200 km away from the source. The potential for a...
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ftunivcanter:oai:ir.canterbury.ac.nz:10092/14080 2023-05-15T18:07:24+02:00 Living in the Shadow of a Volcano Gilles, Janina 2017 application/pdf http://hdl.handle.net/10092/14080 English en eng http://hdl.handle.net/10092/14080 All Rights Reserved Theses / Dissertations 2017 ftunivcanter 2022-09-08T13:38:42Z Mt Erebus is the only active volcano on Ross Island. Though it is currently passively degassing, englacial tephrostratigraphy proves that there have been large eruptions in the past, with enough energy to throw out 4m sized blocks and have ash travel ~200 km away from the source. The potential for a future large eruption poses a threat to the two stations located at the tip of Hut Point Peninsula (McMurdo Station and Scott Base), and the surrounding environment. A Strombolian eruption style, the most common style at Mt Erebus, produces hazards such as tephra fall, ballistics, and lahars. Using modelling software (ArcGIS and Tephra2) these hazards were mapped and have been shown to pose little direct threat to Scott Base due to its location on the Peninsula and distance away from the volcano. In a strong eruption scenario with high winds, the simulated tephra fall showed it reaching Scott Base with a maximum thickness of 0.05-1 cm. Despite this negligible impact on Scott Base, tephra fall and other hazards can injure personnel on the volcano and have a significant effect on the natural environment by changing the albedo of the snow and releasing aerosols into the atmosphere. Other/Unknown Material Ross Island University of Canterbury, Christchurch: UC Research Repository Hut Point ENVELOPE(166.850,166.850,-77.767,-77.767) Hut Point Peninsula ENVELOPE(166.850,166.850,-77.767,-77.767) McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Ross Island Scott Base ENVELOPE(166.766,166.766,-77.849,-77.849) |
institution |
Open Polar |
collection |
University of Canterbury, Christchurch: UC Research Repository |
op_collection_id |
ftunivcanter |
language |
English |
description |
Mt Erebus is the only active volcano on Ross Island. Though it is currently passively degassing, englacial tephrostratigraphy proves that there have been large eruptions in the past, with enough energy to throw out 4m sized blocks and have ash travel ~200 km away from the source. The potential for a future large eruption poses a threat to the two stations located at the tip of Hut Point Peninsula (McMurdo Station and Scott Base), and the surrounding environment. A Strombolian eruption style, the most common style at Mt Erebus, produces hazards such as tephra fall, ballistics, and lahars. Using modelling software (ArcGIS and Tephra2) these hazards were mapped and have been shown to pose little direct threat to Scott Base due to its location on the Peninsula and distance away from the volcano. In a strong eruption scenario with high winds, the simulated tephra fall showed it reaching Scott Base with a maximum thickness of 0.05-1 cm. Despite this negligible impact on Scott Base, tephra fall and other hazards can injure personnel on the volcano and have a significant effect on the natural environment by changing the albedo of the snow and releasing aerosols into the atmosphere. |
format |
Other/Unknown Material |
author |
Gilles, Janina |
spellingShingle |
Gilles, Janina Living in the Shadow of a Volcano |
author_facet |
Gilles, Janina |
author_sort |
Gilles, Janina |
title |
Living in the Shadow of a Volcano |
title_short |
Living in the Shadow of a Volcano |
title_full |
Living in the Shadow of a Volcano |
title_fullStr |
Living in the Shadow of a Volcano |
title_full_unstemmed |
Living in the Shadow of a Volcano |
title_sort |
living in the shadow of a volcano |
publishDate |
2017 |
url |
http://hdl.handle.net/10092/14080 |
long_lat |
ENVELOPE(166.850,166.850,-77.767,-77.767) ENVELOPE(166.850,166.850,-77.767,-77.767) ENVELOPE(166.667,166.667,-77.850,-77.850) ENVELOPE(166.766,166.766,-77.849,-77.849) |
geographic |
Hut Point Hut Point Peninsula McMurdo Station Ross Island Scott Base |
geographic_facet |
Hut Point Hut Point Peninsula McMurdo Station Ross Island Scott Base |
genre |
Ross Island |
genre_facet |
Ross Island |
op_relation |
http://hdl.handle.net/10092/14080 |
op_rights |
All Rights Reserved |
_version_ |
1766179498222419968 |