Atmospheric contribution of gas emissions from Augustine volcano, Alaska during the 2006 eruption

K.A. McGee; M.P. Doukas; R. G. McGimsey; C.A. Neal; R.L. Wessels

doi:10.1029/2007gl032301

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Atmospheric contribution of gas emissions from Augustine volcano, Alaska during the 2006 eruption

K.A. McGee·M.P. Doukas·R. G. McGimsey·C.A. Neal·R.L. Wessels

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Abstract

Airborne surveillance of gas emissions from Augustine for SO 2 , CO 2 and H 2 S showed no evidence of anomalous degassing from 1990 through May 2005. By December 20, 2005, Augustine was degassing 660 td −1 of SO 2 , and ten times that by January 4, 2006. The highest SO 2 emission rate measured during the 2006 eruption was 8650 td −1 (March 1); for CO 2 , 13000 td −1 (March 9), and H 2 S, 8 td −1 (January 19). Thirty‐four SO 2 measurements were made from December 2005 through 2006, with 9 each for CO 2 and H 2 S. Augustine released 1 × 10 6 tonnes of CO 2 to the atmosphere during 2006, a level similar to the output of a medium‐sized natural gas‐fired power plant, and thus was not a significant contributor of greenhouse gas to the atmosphere compared to anthropogenic sources. Augustine released about 5 × 10 5 tonnes of SO 2 during 2006, similar to that released in 1976 and 1986.

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Geophysical Research Letters Article

Source-reported bounding extent: 59.3167251017617° to 59.41993301322722° latitude; -153.58131408691406° to -153.3313751220703° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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K.A. McGee, M.P. Doukas, R. G. McGimsey, C.A. Neal, R.L. Wessels. 2008-02-06. Atmospheric contribution of gas emissions from Augustine volcano, Alaska during the 2006 eruption. https://doi.org/10.1029/2007gl032301

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