Analysis of strong wind events around Adelie Land, East Antarctica
Strong wind events at Dumont d'Urville (DdU), an East Antarctic coastal station, and Dome C, an interior station, were studied to determine if the wind along the Adelie Land coast increases with the approach of the depression from the west of the site or after its passage to the east of it. The...
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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ftdoajarticles:oai:doaj.org/article:2f2fa35c1207472c84a1e7704155e367 2023-05-15T13:04:13+02:00 Analysis of strong wind events around Adelie Land, East Antarctica G. Mastrantonio G. Schayes S. Argentini J. Naithani 2003-06-01T00:00:00Z https://doi.org/10.4401/ag-3411 https://doaj.org/article/2f2fa35c1207472c84a1e7704155e367 EN eng Istituto Nazionale di Geofisica e Vulcanologia (INGV) http://www.annalsofgeophysics.eu/index.php/annals/article/view/3411 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X doi:10.4401/ag-3411 1593-5213 2037-416X https://doaj.org/article/2f2fa35c1207472c84a1e7704155e367 Annals of Geophysics, Vol 46, Iss 2 (2003) strong wind events cyclones Dumont d'Urville Antarctica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 article 2003 ftdoajarticles https://doi.org/10.4401/ag-3411 2022-12-31T12:47:50Z Strong wind events at Dumont d'Urville (DdU), an East Antarctic coastal station, and Dome C, an interior station, were studied to determine if the wind along the Adelie Land coast increases with the approach of the depression from the west of the site or after its passage to the east of it. The events for the year 1993 were studied using synoptic observations, mean sea level pressure charts and composite infrared satellite images. It was found that the winds are enhanced with the approach of a depression from the west towards the DdU coast. The wind increases in response to the decreasing pressure at the coastal site and increasing downslope pressure difference (dp). The wind starts decreasing once the system moves to the east of DdU and the pressure at DdU starts building up, as reported in some earlier studies. The response of wind to the approaching depression is not the same for all the events but depends on the downslope pressure difference and the movement of the depression that is often conditioned by the presence of a blocking high to the northeast. The wind comes down if the system starts penetrating inland due to the presence of the high pressure ridge to the northeast and decreasing dp. It is observed that the winds at Dome C increase to as high as 17 m s-1 with the inland penetration of the depression. Article in Journal/Newspaper Adelie Land Antarc* Antarctic Antarctica East Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic East Antarctica Dumont d'Urville ENVELOPE(140.017,140.017,-66.667,-66.667) Dumont-d'Urville ENVELOPE(140.013,140.013,-66.667,-66.667) Annals of Geophysics 46 2 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
strong wind events cyclones Dumont d'Urville Antarctica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
strong wind events cyclones Dumont d'Urville Antarctica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 G. Mastrantonio G. Schayes S. Argentini J. Naithani Analysis of strong wind events around Adelie Land, East Antarctica |
topic_facet |
strong wind events cyclones Dumont d'Urville Antarctica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
description |
Strong wind events at Dumont d'Urville (DdU), an East Antarctic coastal station, and Dome C, an interior station, were studied to determine if the wind along the Adelie Land coast increases with the approach of the depression from the west of the site or after its passage to the east of it. The events for the year 1993 were studied using synoptic observations, mean sea level pressure charts and composite infrared satellite images. It was found that the winds are enhanced with the approach of a depression from the west towards the DdU coast. The wind increases in response to the decreasing pressure at the coastal site and increasing downslope pressure difference (dp). The wind starts decreasing once the system moves to the east of DdU and the pressure at DdU starts building up, as reported in some earlier studies. The response of wind to the approaching depression is not the same for all the events but depends on the downslope pressure difference and the movement of the depression that is often conditioned by the presence of a blocking high to the northeast. The wind comes down if the system starts penetrating inland due to the presence of the high pressure ridge to the northeast and decreasing dp. It is observed that the winds at Dome C increase to as high as 17 m s-1 with the inland penetration of the depression. |
format |
Article in Journal/Newspaper |
author |
G. Mastrantonio G. Schayes S. Argentini J. Naithani |
author_facet |
G. Mastrantonio G. Schayes S. Argentini J. Naithani |
author_sort |
G. Mastrantonio |
title |
Analysis of strong wind events around Adelie Land, East Antarctica |
title_short |
Analysis of strong wind events around Adelie Land, East Antarctica |
title_full |
Analysis of strong wind events around Adelie Land, East Antarctica |
title_fullStr |
Analysis of strong wind events around Adelie Land, East Antarctica |
title_full_unstemmed |
Analysis of strong wind events around Adelie Land, East Antarctica |
title_sort |
analysis of strong wind events around adelie land, east antarctica |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
publishDate |
2003 |
url |
https://doi.org/10.4401/ag-3411 https://doaj.org/article/2f2fa35c1207472c84a1e7704155e367 |
long_lat |
ENVELOPE(140.017,140.017,-66.667,-66.667) ENVELOPE(140.013,140.013,-66.667,-66.667) |
geographic |
Antarctic East Antarctica Dumont d'Urville Dumont-d'Urville |
geographic_facet |
Antarctic East Antarctica Dumont d'Urville Dumont-d'Urville |
genre |
Adelie Land Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Adelie Land Antarc* Antarctic Antarctica East Antarctica |
op_source |
Annals of Geophysics, Vol 46, Iss 2 (2003) |
op_relation |
http://www.annalsofgeophysics.eu/index.php/annals/article/view/3411 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X doi:10.4401/ag-3411 1593-5213 2037-416X https://doaj.org/article/2f2fa35c1207472c84a1e7704155e367 |
op_doi |
https://doi.org/10.4401/ag-3411 |
container_title |
Annals of Geophysics |
container_volume |
46 |
container_issue |
2 |
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1766354911943983104 |