1U.S. Geological Survey, Cascades Volcano Observatory, 1300 SE Cardinal Court, Bldg. 10, Suite 100, Vancouver, WA 98683, USA
2U.S. Geological Survey, Reston, Virginia, USA
3Canadian Meteorological Centre, Québec, Canada
4Geophysical Institute, University of Alaska, Fairbanks, USA
5Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Pisa, Pisa, Italy
6Department of Earth Sciences, University of Bristol, England
7Department of Geological and Engineering Sciences, Michigan Technological University, USA
8USGS Alaska Volcano Observatory, Anchorage, AK
9Smithsonian Institution, Washington D.C., USA.
10Air Resources Laboratory, National Oceanic and Atmospheric Administration, Silver Spring, MD
11National Oceanic and Atmospheric Administration, Camp Springs, MD, USA
12Bureau of Meteorology, Darwin, Casuarina, NT, Australia
13Department of Geology, University of South Florida, Tampa, FL, USA