Potentiel de la télédétection pour le suivi et la caractérisation des conditions de sécheresse en milieu méditerranéen

Authors: Beaudin, Isabelle
Advisor: Viau, Alain; Vogt, Jürgen
Abstract: Current techniques for the detection and monitoring of droughts are based on meteorological networks. The small number of stations, often badly located makes these networks poorly representatives of the area they cover. The aim of this study is to evaluate the potential of satellite imagery for the detection, characterization and monitoring of drought conditions in Andalusia, in southern Spain. The satellite imagery used in this study comes from the NOAA 11 AVHRR sensor. Two indices (VCI and TCI) were calculated over 11 km2 areas centered over 11 meteorological stations. These were compared to the SPI, a widely used meteorological index. Correlation analysis between VCI, TCI and SPI show a good relation during drought periods and seem to support the use of satellite imagery for monitoring drought in the Mediterranean region.
Document Type: Mémoire de maîtrise
Issue Date: 2007
Open Access Date: 12 April 2018
Permalink: http://hdl.handle.net/20.500.11794/19063
Grantor: Université Laval
Collection:Thèses et mémoires

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