Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica
Weather forecasting in the Antarctic presents many challenges, with strong wind events (SWEs) often disrupting air and field operations. Here, we study the mechanisms responsible for a SWE (maximum wind speed 22 ms–1) that occurred at the McMurdo/Scott Base region on the Ross Ice Shelf (Antarctica)...
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ftnerc:oai:nora.nerc.ac.uk:521670 2023-05-15T13:41:42+02:00 Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica Chenoli, Sheeba Nettukandy Turner, John Abu Samah, Azizan 2018-11 text http://nora.nerc.ac.uk/id/eprint/521670/ https://nora.nerc.ac.uk/id/eprint/521670/1/1684.pdf http://www.currentscience.ac.in/Volumes/115/09/1684.pdf en eng https://nora.nerc.ac.uk/id/eprint/521670/1/1684.pdf Chenoli, Sheeba Nettukandy; Turner, John orcid:0000-0002-6111-5122 Abu Samah, Azizan. 2018 Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica. Current Science, 115 (9). 1684-1689. https://doi.org/10.18520/cs/v115/i9/1684-1689 <https://doi.org/10.18520/cs/v115/i9/1684-1689> cc_by_nd_4 CC-BY-ND Meteorology and Climatology Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.18520/cs/v115/i9/1684-1689 2023-02-04T19:47:27Z Weather forecasting in the Antarctic presents many challenges, with strong wind events (SWEs) often disrupting air and field operations. Here, we study the mechanisms responsible for a SWE (maximum wind speed 22 ms–1) that occurred at the McMurdo/Scott Base region on the Ross Ice Shelf (Antarctica) over 12–13 October 2003. The study is based on in situ observations, satellite imagery and output from the Antarctic mesoscale prediction system (AMPS) model. The event occurred during the passage of a complex low pressure system that increased the pressure gradient between the northwest Ross Ice Shelf and the continental high, initiating a strong southerly flow. AMPS simulations as well as upper air sounding profiles from McMurdo station showed the involvement of large amplitude vertically propagating mountain waves over the area. The amplification of mountain waves by the self-induced critical level reflected all the energy back towards the surface to generate high downslope winds. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Shelf Ross Ice Shelf Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Ross Ice Shelf McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Scott Base ENVELOPE(166.766,166.766,-77.849,-77.849) Current Science 115 9 1684 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Chenoli, Sheeba Nettukandy Turner, John Abu Samah, Azizan Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica |
topic_facet |
Meteorology and Climatology |
description |
Weather forecasting in the Antarctic presents many challenges, with strong wind events (SWEs) often disrupting air and field operations. Here, we study the mechanisms responsible for a SWE (maximum wind speed 22 ms–1) that occurred at the McMurdo/Scott Base region on the Ross Ice Shelf (Antarctica) over 12–13 October 2003. The study is based on in situ observations, satellite imagery and output from the Antarctic mesoscale prediction system (AMPS) model. The event occurred during the passage of a complex low pressure system that increased the pressure gradient between the northwest Ross Ice Shelf and the continental high, initiating a strong southerly flow. AMPS simulations as well as upper air sounding profiles from McMurdo station showed the involvement of large amplitude vertically propagating mountain waves over the area. The amplification of mountain waves by the self-induced critical level reflected all the energy back towards the surface to generate high downslope winds. |
format |
Article in Journal/Newspaper |
author |
Chenoli, Sheeba Nettukandy Turner, John Abu Samah, Azizan |
author_facet |
Chenoli, Sheeba Nettukandy Turner, John Abu Samah, Azizan |
author_sort |
Chenoli, Sheeba Nettukandy |
title |
Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica |
title_short |
Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica |
title_full |
Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica |
title_fullStr |
Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica |
title_full_unstemmed |
Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica |
title_sort |
effects of vertically propagating mountain waves during a strong wind event over the ross ice shelf, antarctica |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/521670/ https://nora.nerc.ac.uk/id/eprint/521670/1/1684.pdf http://www.currentscience.ac.in/Volumes/115/09/1684.pdf |
long_lat |
ENVELOPE(166.667,166.667,-77.850,-77.850) ENVELOPE(166.766,166.766,-77.849,-77.849) |
geographic |
Antarctic The Antarctic Ross Ice Shelf McMurdo Station Scott Base |
geographic_facet |
Antarctic The Antarctic Ross Ice Shelf McMurdo Station Scott Base |
genre |
Antarc* Antarctic Antarctica Ice Shelf Ross Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf Ross Ice Shelf |
op_relation |
https://nora.nerc.ac.uk/id/eprint/521670/1/1684.pdf Chenoli, Sheeba Nettukandy; Turner, John orcid:0000-0002-6111-5122 Abu Samah, Azizan. 2018 Effects of vertically propagating mountain waves during a strong wind event over the Ross Ice Shelf, Antarctica. Current Science, 115 (9). 1684-1689. https://doi.org/10.18520/cs/v115/i9/1684-1689 <https://doi.org/10.18520/cs/v115/i9/1684-1689> |
op_rights |
cc_by_nd_4 |
op_rightsnorm |
CC-BY-ND |
op_doi |
https://doi.org/10.18520/cs/v115/i9/1684-1689 |
container_title |
Current Science |
container_volume |
115 |
container_issue |
9 |
container_start_page |
1684 |
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1766154163443466240 |