Crater Lake Temperature Changes of the 2005 Eruption of Santa Ana Volcano, El Salvador, Central America

A sudden eruption at Santa Ana occurred on 1 October 2005, producing an ash-and-gas plume to a height in excess of 10 km above the volcano. Several days before, thermal infrared images of the crater provided precursory signals of the eruption. A significant increase in the extent and intensity of th...

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Bibliographic Details
Published in:Pure and applied geophysics 2007-12, Vol.164 (12), p.2507-2522
Main Authors: Hernández, P. A., Pérez, N. M., Varekamp, J. C., Henriquez, B., Hernández, A., Barrancos, J., Padrón, E., Calvo, D., Melián, G.
Format: Article
Language:English
Subjects:
Central America
Craters
El Salvador
Geophysics
Infrared imagery
Lakes
Mathematical analysis
Plumes
Surface temperature
Volcanic eruptions
Volcanoes
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Summary:A sudden eruption at Santa Ana occurred on 1 October 2005, producing an ash-and-gas plume to a height in excess of 10 km above the volcano. Several days before, thermal infrared images of the crater provided precursory signals of the eruption. A significant increase in the extent and intensity of the fumarolic field inside the crater rim and of the surface temperature of the crater's lake was observed. Changes in energy input was also estimated to explain the increase in lake temperature based on energy/mass balance calculations.[PUBLICATION ABSTRACT]
ISSN:0033-4553
1420-9136
DOI:10.1007/s00024-007-0275-7