"A comparison of SO2 retrieval techniques using mini-UV spectrometers a" by L. A. Henney, L. A. Rodríguez et al.
 

A comparison of SO2 retrieval techniques using mini-UV spectrometers and ASTER imagery at Lascar volcano, Chile

Document Type

Article

Publication Date

3-2012

Department

Department of Geological and Mining Engineering and Sciences

Abstract

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is a useful tool for detecting low quantities of sulfur dioxide at passively degassing volcanoes such as Lascar volcano, Chile. Two mini-UV spectrometers (MUSes) were used to make transects of Lascar volcano's sulfur dioxide plume on December 7, 2004, during a coordinated overpass of ASTER. SO 2 burdens were retrieved using the thermal infrared channels of the acquired ASTER image. This allowed for a direct comparison between the two methods in order to validate the ASTER SO 2 retrieval. The results were extremely encouraging with ASTER deriving SO 2 fluxes within the range of fluxes obtained by the MUSe.

Publication Title

Bulletin of Volcanology

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