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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Norwegian Polar Institute
2015
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ftdoajarticles:oai:doaj.org/article:6e5c3ccba6c64d65a1fbbbf8b5254dde 2023-05-15T13:40:09+02:00 Aeolian processes and landforms in the sub-Antarctic: preliminary observations from Marion Island David W. Hedding Werner Nel Ryan L. Anderson 2015-11-01T00:00:00Z https://doi.org/10.3402/polar.v34.26365 https://doaj.org/article/6e5c3ccba6c64d65a1fbbbf8b5254dde EN eng Norwegian Polar Institute http://www.polarresearch.net/index.php/polar/article/view/26365/pdf_56 https://doaj.org/toc/1751-8369 1751-8369 doi:10.3402/polar.v34.26365 https://doaj.org/article/6e5c3ccba6c64d65a1fbbbf8b5254dde Polar Research, Vol 34, Iss 0, Pp 1-8 (2015) Marion Island climate change wind erosion dispersal Environmental sciences GE1-350 Oceanography GC1-1581 article 2015 ftdoajarticles https://doi.org/10.3402/polar.v34.26365 2022-12-31T13:24:32Z 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. Article in Journal/Newspaper Antarc* Antarctic Marion Island Polar Research Directory of Open Access Journals: DOAJ Articles Antarctic Polar Research 34 1 26365 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Marion Island climate change wind erosion dispersal Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Marion Island climate change wind erosion dispersal Environmental sciences GE1-350 Oceanography GC1-1581 David W. Hedding Werner Nel Ryan L. Anderson Aeolian processes and landforms in the sub-Antarctic: preliminary observations from Marion Island |
topic_facet |
Marion Island climate change wind erosion dispersal Environmental sciences GE1-350 Oceanography GC1-1581 |
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. |
format |
Article in Journal/Newspaper |
author |
David W. Hedding Werner Nel Ryan L. Anderson |
author_facet |
David W. Hedding Werner Nel Ryan L. Anderson |
author_sort |
David W. Hedding |
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://doi.org/10.3402/polar.v34.26365 https://doaj.org/article/6e5c3ccba6c64d65a1fbbbf8b5254dde |
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, Iss 0, Pp 1-8 (2015) |
op_relation |
http://www.polarresearch.net/index.php/polar/article/view/26365/pdf_56 https://doaj.org/toc/1751-8369 1751-8369 doi:10.3402/polar.v34.26365 https://doaj.org/article/6e5c3ccba6c64d65a1fbbbf8b5254dde |
op_doi |
https://doi.org/10.3402/polar.v34.26365 |
container_title |
Polar Research |
container_volume |
34 |
container_issue |
1 |
container_start_page |
26365 |
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1766128647417102336 |