Climatological aspects of cyclogenesis near Adélie Land Antarctica
The Adelie Land coastal region of Antarctica is one of the most prominent cyclogenesis regions in the Southern Hemisphere, and is adjacent to the continent's most intense katabatic wind regime. However, the physical mechanisms responsible for cyclogenesis are not known. A manual analysis of cyc...
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ftncar:oai:drupal-site.org:articles_21498 2023-07-30T03:55:29+02:00 Climatological aspects of cyclogenesis near Adélie Land Antarctica Bromwich, David H. (author) Steinhoff, Daniel F. (author) Simmonds, Ian (author) Keay, Kevin (author) Fogt, Ryan L. (author) 2011-01-15 https://doi.org/10.1111/j.1600-0870.2011.00537.x en eng Tellus A: Dynamic Meteorology and Oceanography--Tellus A: Dynamic Meteorology and Oceanography--1600-0870 articles:21498 ark:/85065/d7rn3bjz doi:10.1111/j.1600-0870.2011.00537.x Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. article Text 2011 ftncar https://doi.org/10.1111/j.1600-0870.2011.00537.x 2023-07-17T18:16:04Z The Adelie Land coastal region of Antarctica is one of the most prominent cyclogenesis regions in the Southern Hemisphere, and is adjacent to the continent's most intense katabatic wind regime. However, the physical mechanisms responsible for cyclogenesis are not known. A manual analysis of cyclogenesis for the 2003-2005 period using output from the Antarctic Mesoscale Prediction System (AMPS) identifies two primary patterns of cyclogenesis near the Adelie Land coast. For "secondary development" cyclones, enhanced low-level cyclonic vorticity and baroclinicity result from the combination of an existing synoptic-scale cyclone to the west, coastal barrier winds and katabatic winds. "Lee cyclogenesis" occurs near 152 degrees E on the cyclonic-shear side of the Adelie Land katabatic jet, where a low-level warm potential temperature anomaly sets up a lee trough that becomes mobile with the arrival of upper-level synoptic-scale forcing. The representation of both "secondary development" and "lee cyclogenesis" cyclones in an automated cyclone-tracking scheme is explored, where it is found that the automated scheme overestimates cyclogenesis for this region. The location of the Antarctic coastal cyclogenesis maximum near Adelie Land is due to the unique juxtaposition of the extraordinary katabatic wind regime and dissipating synoptic-scale cyclones to the west. Article in Journal/Newspaper Adelie Land Antarc* Antarctic Antarctica OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic The Antarctic Tellus A: Dynamic Meteorology and Oceanography 63 5 921 938 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
The Adelie Land coastal region of Antarctica is one of the most prominent cyclogenesis regions in the Southern Hemisphere, and is adjacent to the continent's most intense katabatic wind regime. However, the physical mechanisms responsible for cyclogenesis are not known. A manual analysis of cyclogenesis for the 2003-2005 period using output from the Antarctic Mesoscale Prediction System (AMPS) identifies two primary patterns of cyclogenesis near the Adelie Land coast. For "secondary development" cyclones, enhanced low-level cyclonic vorticity and baroclinicity result from the combination of an existing synoptic-scale cyclone to the west, coastal barrier winds and katabatic winds. "Lee cyclogenesis" occurs near 152 degrees E on the cyclonic-shear side of the Adelie Land katabatic jet, where a low-level warm potential temperature anomaly sets up a lee trough that becomes mobile with the arrival of upper-level synoptic-scale forcing. The representation of both "secondary development" and "lee cyclogenesis" cyclones in an automated cyclone-tracking scheme is explored, where it is found that the automated scheme overestimates cyclogenesis for this region. The location of the Antarctic coastal cyclogenesis maximum near Adelie Land is due to the unique juxtaposition of the extraordinary katabatic wind regime and dissipating synoptic-scale cyclones to the west. |
author2 |
Bromwich, David H. (author) Steinhoff, Daniel F. (author) Simmonds, Ian (author) Keay, Kevin (author) Fogt, Ryan L. (author) |
format |
Article in Journal/Newspaper |
title |
Climatological aspects of cyclogenesis near Adélie Land Antarctica |
spellingShingle |
Climatological aspects of cyclogenesis near Adélie Land Antarctica |
title_short |
Climatological aspects of cyclogenesis near Adélie Land Antarctica |
title_full |
Climatological aspects of cyclogenesis near Adélie Land Antarctica |
title_fullStr |
Climatological aspects of cyclogenesis near Adélie Land Antarctica |
title_full_unstemmed |
Climatological aspects of cyclogenesis near Adélie Land Antarctica |
title_sort |
climatological aspects of cyclogenesis near adélie land antarctica |
publishDate |
2011 |
url |
https://doi.org/10.1111/j.1600-0870.2011.00537.x |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Adelie Land Antarc* Antarctic Antarctica |
genre_facet |
Adelie Land Antarc* Antarctic Antarctica |
op_relation |
Tellus A: Dynamic Meteorology and Oceanography--Tellus A: Dynamic Meteorology and Oceanography--1600-0870 articles:21498 ark:/85065/d7rn3bjz doi:10.1111/j.1600-0870.2011.00537.x |
op_rights |
Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
op_doi |
https://doi.org/10.1111/j.1600-0870.2011.00537.x |
container_title |
Tellus A: Dynamic Meteorology and Oceanography |
container_volume |
63 |
container_issue |
5 |
container_start_page |
921 |
op_container_end_page |
938 |
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1772813710331478016 |