Les îles de Polynésie française face à l’aléa cyclonique

Using retrospective analysis with Geographic Information System methodology (GIS, Mapinfo® Professional version 7.0), the aim of this paper is to contribute to a better understanding of cyclone hazard and cyclone tracks in French Polynesia. The GIS database on cyclones was compiled from non-meteorol...

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Autores principales:	Sébastien Larrue, Thomas Chiron
Formato:	article
Lenguaje:	FR
Publicado:	Éditions en environnement VertigO 2010
Materias:	conical shape cyclone hazard el Niño. French Polynesia mapping tropical cyclone Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/e5a0d63586fa4ab9931ef8f015cc5b73
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spelling	oai:doaj.org-article:e5a0d63586fa4ab9931ef8f015cc5b732021-12-02T10:00:40ZLes îles de Polynésie française face à l’aléa cyclonique1492-844210.4000/vertigo.10558https://doaj.org/article/e5a0d63586fa4ab9931ef8f015cc5b732010-12-01T00:00:00Zhttp://journals.openedition.org/vertigo/10558https://doaj.org/toc/1492-8442Using retrospective analysis with Geographic Information System methodology (GIS, Mapinfo® Professional version 7.0), the aim of this paper is to contribute to a better understanding of cyclone hazard and cyclone tracks in French Polynesia. The GIS database on cyclones was compiled from non-meteorological sources of information, many in the territorial archives of Papeari (Tahiti Island), and meteorological reports. The major meteorological sources used in this paper were the data of Meteo-France French Polynesia and two cyclone databases : (1) the U.S. Naval Pacific Meteorology and Oceanography Center via the Joint Typhoon Warning Center (2005) and the Tropical Cyclone Best-Tracks interface, and (2) the Australian Severe Weather site. On the French Polynesia map in projection WGS 1984, the cyclone tracks of the disturbances were imported and digitized with GIS Mapinfo. The uncertainty concerning the reliability of the data and the cyclone tracks before 1970 restricted our study to the 1970-2009 period. The cyclone track pattern between 1970 and 2009 was identified, showing a “conical shape” between the Society Islands and the Austral Islands where 70 % of the cyclone tracks were observed. The map shows that the islands most at risk from cyclones are the west coasts of the Society Islands and the east coasts of Austral Islands. Recently, cyclone Oli (February 4th, 2010) and his track in the middle of the “conical shape” located in the vinciny of the Society Islands and the Austral archipelago strengthen this trend.Sébastien LarrueThomas ChironÉditions en environnement VertigOarticleconical shapecyclone hazardel Niño.French Polynesiamappingtropical cycloneEnvironmental sciencesGE1-350FRVertigO, Vol 10, Iss 3 (2010)
institution	DOAJ
collection	DOAJ
language	FR
topic	conical shape cyclone hazard el Niño. French Polynesia mapping tropical cyclone Environmental sciences GE1-350
spellingShingle	conical shape cyclone hazard el Niño. French Polynesia mapping tropical cyclone Environmental sciences GE1-350 Sébastien Larrue Thomas Chiron Les îles de Polynésie française face à l’aléa cyclonique
description	Using retrospective analysis with Geographic Information System methodology (GIS, Mapinfo® Professional version 7.0), the aim of this paper is to contribute to a better understanding of cyclone hazard and cyclone tracks in French Polynesia. The GIS database on cyclones was compiled from non-meteorological sources of information, many in the territorial archives of Papeari (Tahiti Island), and meteorological reports. The major meteorological sources used in this paper were the data of Meteo-France French Polynesia and two cyclone databases : (1) the U.S. Naval Pacific Meteorology and Oceanography Center via the Joint Typhoon Warning Center (2005) and the Tropical Cyclone Best-Tracks interface, and (2) the Australian Severe Weather site. On the French Polynesia map in projection WGS 1984, the cyclone tracks of the disturbances were imported and digitized with GIS Mapinfo. The uncertainty concerning the reliability of the data and the cyclone tracks before 1970 restricted our study to the 1970-2009 period. The cyclone track pattern between 1970 and 2009 was identified, showing a “conical shape” between the Society Islands and the Austral Islands where 70 % of the cyclone tracks were observed. The map shows that the islands most at risk from cyclones are the west coasts of the Society Islands and the east coasts of Austral Islands. Recently, cyclone Oli (February 4th, 2010) and his track in the middle of the “conical shape” located in the vinciny of the Society Islands and the Austral archipelago strengthen this trend.
format	article
author	Sébastien Larrue Thomas Chiron
author_facet	Sébastien Larrue Thomas Chiron
author_sort	Sébastien Larrue
title	Les îles de Polynésie française face à l’aléa cyclonique
title_short	Les îles de Polynésie française face à l’aléa cyclonique
title_full	Les îles de Polynésie française face à l’aléa cyclonique
title_fullStr	Les îles de Polynésie française face à l’aléa cyclonique
title_full_unstemmed	Les îles de Polynésie française face à l’aléa cyclonique
title_sort	les îles de polynésie française face à l’aléa cyclonique
publisher	Éditions en environnement VertigO
publishDate	2010
url	https://doaj.org/article/e5a0d63586fa4ab9931ef8f015cc5b73
work_keys_str_mv	AT sebastienlarrue lesilesdepolynesiefrancaisefacealaleacyclonique AT thomaschiron lesilesdepolynesiefrancaisefacealaleacyclonique
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Les îles de Polynésie française face à l’aléa cyclonique

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