Correlation Spectrometer (COSPEC) instrument used to measure sulfur dioxide content of volcanic gas plumes.  This view is of the COSPEC mounted in the rear of a fixed-wing aircraft.

Correlation Spectrometer (COSPEC) instrument used to measure sulfur dioxide content of volcanic gas plumes. This view is of the COSPEC mounted in the rear of a fixed-wing aircraft.

Date: Sep 16th, 2007
Volcano(es): Redoubt
Photographer: McGimsey, R. G.
URL: avo.alaska.edu/image/view/13667
Credit: Image courtesy of AVO/USGS.
Use Restriction: Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
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