Aeolian processes and landforms in the sub-Antarctic: Preliminary observations from Marion Island
Sub-Antarctic Marion Island has a hyperoceanic climate, with cold and wet conditions and consistently strong wind velocities throughout the year. Recent observations recognized the increasing role of aeolian processes as a geomorphic agent, and this paper presents the first data for transport by aeo...
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ftjpolarres:oai:journals.openacademia.net:article/3215 2024-09-09T19:10:46+00:00 Aeolian processes and landforms in the sub-Antarctic: Preliminary observations from Marion Island Hedding, David W. Nel, Werner Anderson, Ryan L. 2015-11-23 application/pdf text/html application/epub+zip application/xml https://polarresearch.net/index.php/polar/article/view/3215 https://doi.org/10.3402/polar.v34.26365 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3215/pdf_56 https://polarresearch.net/index.php/polar/article/view/3215/html_44 https://polarresearch.net/index.php/polar/article/view/3215/_46 https://polarresearch.net/index.php/polar/article/view/3215/xml_43 https://polarresearch.net/index.php/polar/article/view/3215 doi:10.3402/polar.v34.26365 Polar Research; Vol 34 (2015) 1751-8369 Marion Island climate change wind erosion dispersal info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftjpolarres https://doi.org/10.3402/polar.v34.26365 2024-06-20T23:33:17Z Sub-Antarctic Marion Island has a hyperoceanic climate, with cold and wet conditions and consistently strong wind velocities throughout the year. Recent observations recognized the increasing role of aeolian processes as a geomorphic agent, and this paper presents the first data for transport by aeolian processes on a sub-Antarctic island. Data were collected through an intensive and high-resolution measurement campaign at three study sites using Big Spring Number Eight sediment traps and surface sediment samplers in conjunction with an array of climatic and soil logger sensors. Observed aeolian landforms are megaripples, and the data suggest that aeolian processes are also modifying solifluction landforms. The sediment traps and sediment samplers collected wind-blown scoria at all three study sites, and the annual (horizontal) aeolian sediment flux extrapolated from this preliminary data is estimated at 0.36–3.85 kg cm−2 y−1. Importantly, plant material of various species was trapped during the study that suggests the efficiency of wind for the dispersal of plants in this sub-Antarctic environment may be underestimated. This paper advocates long-term monitoring of aeolian processes and that the link between aeolian processes and synoptic climate must be established. Furthermore, wind as a means to disperse genetic material on Marion Island should be investigated.Keywords: Marion Island; climate change; wind; erosion; dispersal.(Published: 23 November 2015)Citation: Polar Research 2015, 34, 26365, http://dx.doi.org/10.3402/polar.v34.26365 Article in Journal/Newspaper Antarc* Antarctic Marion Island Polar Research Polar Research Antarctic Polar Research 34 1 26365 |
institution |
Open Polar |
collection |
Polar Research |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Marion Island climate change wind erosion dispersal |
spellingShingle |
Marion Island climate change wind erosion dispersal Hedding, David W. Nel, Werner Anderson, Ryan L. Aeolian processes and landforms in the sub-Antarctic: Preliminary observations from Marion Island |
topic_facet |
Marion Island climate change wind erosion dispersal |
description |
Sub-Antarctic Marion Island has a hyperoceanic climate, with cold and wet conditions and consistently strong wind velocities throughout the year. Recent observations recognized the increasing role of aeolian processes as a geomorphic agent, and this paper presents the first data for transport by aeolian processes on a sub-Antarctic island. Data were collected through an intensive and high-resolution measurement campaign at three study sites using Big Spring Number Eight sediment traps and surface sediment samplers in conjunction with an array of climatic and soil logger sensors. Observed aeolian landforms are megaripples, and the data suggest that aeolian processes are also modifying solifluction landforms. The sediment traps and sediment samplers collected wind-blown scoria at all three study sites, and the annual (horizontal) aeolian sediment flux extrapolated from this preliminary data is estimated at 0.36–3.85 kg cm−2 y−1. Importantly, plant material of various species was trapped during the study that suggests the efficiency of wind for the dispersal of plants in this sub-Antarctic environment may be underestimated. This paper advocates long-term monitoring of aeolian processes and that the link between aeolian processes and synoptic climate must be established. Furthermore, wind as a means to disperse genetic material on Marion Island should be investigated.Keywords: Marion Island; climate change; wind; erosion; dispersal.(Published: 23 November 2015)Citation: Polar Research 2015, 34, 26365, http://dx.doi.org/10.3402/polar.v34.26365 |
format |
Article in Journal/Newspaper |
author |
Hedding, David W. Nel, Werner Anderson, Ryan L. |
author_facet |
Hedding, David W. Nel, Werner Anderson, Ryan L. |
author_sort |
Hedding, David W. |
title |
Aeolian processes and landforms in the sub-Antarctic: Preliminary observations from Marion Island |
title_short |
Aeolian processes and landforms in the sub-Antarctic: Preliminary observations from Marion Island |
title_full |
Aeolian processes and landforms in the sub-Antarctic: Preliminary observations from Marion Island |
title_fullStr |
Aeolian processes and landforms in the sub-Antarctic: Preliminary observations from Marion Island |
title_full_unstemmed |
Aeolian processes and landforms in the sub-Antarctic: Preliminary observations from Marion Island |
title_sort |
aeolian processes and landforms in the sub-antarctic: preliminary observations from marion island |
publisher |
Norwegian Polar Institute |
publishDate |
2015 |
url |
https://polarresearch.net/index.php/polar/article/view/3215 https://doi.org/10.3402/polar.v34.26365 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Marion Island Polar Research |
genre_facet |
Antarc* Antarctic Marion Island Polar Research |
op_source |
Polar Research; Vol 34 (2015) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3215/pdf_56 https://polarresearch.net/index.php/polar/article/view/3215/html_44 https://polarresearch.net/index.php/polar/article/view/3215/_46 https://polarresearch.net/index.php/polar/article/view/3215/xml_43 https://polarresearch.net/index.php/polar/article/view/3215 doi:10.3402/polar.v34.26365 |
op_doi |
https://doi.org/10.3402/polar.v34.26365 |
container_title |
Polar Research |
container_volume |
34 |
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1 |
container_start_page |
26365 |
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1809826385747771392 |