Volcanic plume above Mount St. Helens detected with GPS
Article first published online: 3 JUN 2011
©2005. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 86, Issue 30, pages 277–281, 26 July 2005
How to Cite
2005), Volcanic plume above Mount St. Helens detected with GPS, Eos Trans. AGU, 86(30), 277–281, doi:10.1029/2005EO300001., , , and (
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
Eruptions can produce not only flows of incandescent material along the slopes of a volcano but also ash plumes in the troposphere [Sparks et al., 1997] that can threaten aircraft flying in the vicinity [Fisher et al., 1997]. To protect aircraft, passengers, and crews, the International Civil Aviation Organization and the World Meteorological Organization created eight Volcanic Ash Advisory Centers (VAAC, http://www.ssd.noaa.gov/VAAC/vaac.html) around the globe with the goal of tracking volcanic plumes and releasing eruption alerts to airports, pilots, and companies. Currently, the VAAC monitoring system is based mostly on the monitoring systems of any local volcano observatories and on real-time monitoring of data acquired by meteorological satellites.