NDLI: The spatial extent of thermal anomalies at Lascar Volcano

Content Provider	IEEE Xplore Digital Library
Author	Murphy, S.W. de Souza Filho, C.R. Oppenheimer, C.
Copyright Year	2010
Description	Author affiliation: Department of Geography, University of Cambridge, UK (Oppenheimer, C.) \|\| Instituto de Geosciências, Universidade Estadual de Campinas, Brazil (Murphy, S.W.; de Souza Filho, C.R.)
Abstract	Láscar volcano (Chile) has undergone at least 4 vulcanian eruptions and other smaller events between May 2000 and April 2009. Multispectral, thermal infrared images taken during this time by ASTER are used to calculate surface temperatures. The spatial extent and intesity of thermal anomalies are interpreted as varying due to fluctuations in the quantity and temperature of gas being emitted from active fumarole sites. The volcano continues to show a different relationship between thermal radiance and eruptive behaviour to that observed before 1993, the year of the volcano's greatest historical eruption, indicating that a change in degassing style has persisted since that time. Monitoring the size of thermal anomalies is shown to provide a new perspective for observing and interpreting volcanic processes and may be useful in future predictive models.
Starting Page	1557
Ending Page	1560
File Size	315305
Page Count	4
File Format	PDF
ISBN	9781424495658
ISSN	21537003
e-ISBN	9781424495665
e-ISBN	9781424495641
DOI	10.1109/IGARSS.2010.5652858
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Volcanoes Pixel Temperature sensors Temperature distribution Temperature measurement Land surface temperature Monitoring Temperature Volcano Spatial
Content Type	Text
Resource Type	Article

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