Significant extra‐tropical anomalies in the lead up to the Black Saturday fires
ABSTRACT Black Saturday ( BS ), 7 February 2009, is recognized as Australia's most severe bushfire event on record. The meteorology that day, although extreme, was typical of southeast Australian bushfire events, characterized by gusty northerly winds before a cool change brought strong souther...
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crwiley:10.1002/joc.4387 2024-06-02T07:58:30+00:00 Significant extra‐tropical anomalies in the lead up to the Black Saturday fires Fiddes, Sonya L. Pezza, Alexandre B. Renwick, James Australian Research Council 2015 http://dx.doi.org/10.1002/joc.4387 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.4387 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Fjoc.4387 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.4387 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 36, issue 2, page 1011-1018 ISSN 0899-8418 1097-0088 journal-article 2015 crwiley https://doi.org/10.1002/joc.4387 2024-05-03T11:55:55Z ABSTRACT Black Saturday ( BS ), 7 February 2009, is recognized as Australia's most severe bushfire event on record. The meteorology that day, although extreme, was typical of southeast Australian bushfire events, characterized by gusty northerly winds before a cool change brought strong southerly winds and a dramatic temperature drop. This study investigates a range of extra‐tropical atmospheric (pressure, temperatures) and oceanic temperature anomalies that occurred on or leading up to BS . Results show several parameters were within the top 5% or were record breaking for the satellite era. Of particular note are the anomalies that occurred over the Antarctic region, having the strongest signal and appearing in unison with the pre‐ BS heatwave. We suggest that a combination of a warm polar ocean and an enhanced mid‐latitude thermal contrast in the Indian Ocean aided in triggering sub‐polar blocking and an intense cyclone, which brought the catastrophic cold front on BS . Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library Antarctic Indian The Antarctic International Journal of Climatology 36 2 1011 1018 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT Black Saturday ( BS ), 7 February 2009, is recognized as Australia's most severe bushfire event on record. The meteorology that day, although extreme, was typical of southeast Australian bushfire events, characterized by gusty northerly winds before a cool change brought strong southerly winds and a dramatic temperature drop. This study investigates a range of extra‐tropical atmospheric (pressure, temperatures) and oceanic temperature anomalies that occurred on or leading up to BS . Results show several parameters were within the top 5% or were record breaking for the satellite era. Of particular note are the anomalies that occurred over the Antarctic region, having the strongest signal and appearing in unison with the pre‐ BS heatwave. We suggest that a combination of a warm polar ocean and an enhanced mid‐latitude thermal contrast in the Indian Ocean aided in triggering sub‐polar blocking and an intense cyclone, which brought the catastrophic cold front on BS . |
author2 |
Australian Research Council |
format |
Article in Journal/Newspaper |
author |
Fiddes, Sonya L. Pezza, Alexandre B. Renwick, James |
spellingShingle |
Fiddes, Sonya L. Pezza, Alexandre B. Renwick, James Significant extra‐tropical anomalies in the lead up to the Black Saturday fires |
author_facet |
Fiddes, Sonya L. Pezza, Alexandre B. Renwick, James |
author_sort |
Fiddes, Sonya L. |
title |
Significant extra‐tropical anomalies in the lead up to the Black Saturday fires |
title_short |
Significant extra‐tropical anomalies in the lead up to the Black Saturday fires |
title_full |
Significant extra‐tropical anomalies in the lead up to the Black Saturday fires |
title_fullStr |
Significant extra‐tropical anomalies in the lead up to the Black Saturday fires |
title_full_unstemmed |
Significant extra‐tropical anomalies in the lead up to the Black Saturday fires |
title_sort |
significant extra‐tropical anomalies in the lead up to the black saturday fires |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1002/joc.4387 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.4387 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Fjoc.4387 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.4387 |
geographic |
Antarctic Indian The Antarctic |
geographic_facet |
Antarctic Indian The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
International Journal of Climatology volume 36, issue 2, page 1011-1018 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.4387 |
container_title |
International Journal of Climatology |
container_volume |
36 |
container_issue |
2 |
container_start_page |
1011 |
op_container_end_page |
1018 |
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1800741865482354688 |