Thomas J Casadevall
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Born of fire: In search of volcanoes in U.S. national parks, four striking examples
Geologic features, particularly volcanic features, have been protected by the National Park Service since its inception. Some volcanic areas were nationally protected even before the National Park Service was established. The first national park, Yellowstone National Park, is one of the most widely known geothermal and volcanic areas in the world...
Walkup, Laura; Casadevall, Thomas; Santucci, Vincent L.
Encounters of aircraft with volcanic ash clouds; A compilation of known incidents, 1953-2009
Information about reported encounters of aircraft with volcanic ash clouds from 1953 through 2009 has been compiled to document the nature and scope of risks to aviation from volcanic activity. The information, gleaned from a variety of published and other sources, is presented in database and spreadsheet formats; the compilation will be updated...
Guffanti, Marianne; Casadevall, Thomas J.; Budding, Karin Volcanic hazards to airports
Volcanic activity has caused significant hazards to numerous airports worldwide, with local to far-ranging effects on travelers and commerce. Analysis of a new compilation of incidents of airports impacted by volcanic activity from 1944 through 2006 reveals that, at a minimum, 101 airports in 28 countries were affected on 171 occasions by...
Guffanti, Marianne C.; Mayberry, Gari C.; Casadevall, Thomas J.; Wunderman, Richard
Compilation of Disruptions to Airports by Volcanic Activity (Version 1.0, 1944-2006)
Volcanic activity has caused significant hazards to numerous airports worldwide, with local to far-ranging effects on travelers and commerce. To more fully characterize the nature and scope of volcanic hazards to airports, we collected data on incidents of airports throughout the world that have been affected by volcanic activity, beginning in...
Guffanti, Marianne; Mayberry, Gari C.; Casadevall, Thomas J.; Wunderman, Richard Preliminary analytical results for a mud sample collected from the LUSI Mud Volcano, Sidoarjo, East Java, Indonesia
On May 29, 2006, mud and gases began erupting unexpectedly from a vent 150 meters away from a hydrocarbon exploration well near Sidoarjo, East Java, Indonesia. The eruption, called the LUSI (Lumpur 'mud'-Sidoarjo) mud volcano, has continued since then at rates as high as 160,000 m3 per day. At the request of the United States Department of State,...
Plumlee, Geoffrey S.; Casadevall, Thomas J.; Wibowo, Handoko T.; Rosenbauer, Robert J.; Johnson, Craig A.; Breit, George N.; Lowers, Heather; Wolf, Ruth E.; Hageman, Philip L.; Goldstein, Harland L.; Anthony, Michael W.; Berry, Cyrus J.; Fey, David L.; Meeker, Gregory P.; Morman, Suzette A.
Volcanic ash - danger to aircraft in the north Pacific
The world's busy air traffic corridors pass over hundreds of volcanoes capable of sudden, explosive eruptions. In the United States alone, aircraft carry many thousands of passengers and millions of dollars of cargo over volcanoes each day. Volcanic ash can be a serious hazard to aviation even thousands of miles from an eruption. Airborne ash can...
Neal, Christina A.; Casadevall, Thomas J.; Miller, Thomas P.; Hendley, James W.; Stauffer, Peter H. Volcanic hazards and aviation safety
An aeronautical chart was developed to determine the relative proximity of volcanoes or ash clouds to the airports and flight corridors that may be affected by volcanic debris. The map aims to inform and increase awareness about the close spatial relationship between volcanoes and aviation operations. It shows the locations of the active volcanoes...
Casadevall, Thomas J.; Thompson, Theodore B.; Ewert, John W.
A compilation of sulfur dioxide and carbon dioxide emission-rate data from Mount St. Helens during 1980-88
Airborne monitoring of Mount St. Helens by the USGS began inMay 1980 for sulfur dioxide emissions and in July 1980 forcarbon dioxide emissions. A correlation spectrometer, orCOSPEC, was used to measure sulfur dioxide in Mount St.Helens' plume. The upward-looking COSPEC was mounted in afixed-wing aircraft and flown below and at right angles to...
McGee, Kenneth A.; Casadevall, Thomas J. Vapor saturation and accumulation in magmas of the 1989-1990 eruption of Redoubt Volcano, Alaska
The 1989–1990 eruption of Redoubt Volcano, Alaska, provided an opportunity to compare petrologic estimates of SO2 and Cl emissions with estimates of SO2 emissions based on remote sensing data and estimates of Cl emissions based on plume sampling. In this study, we measure the sulfur and chlorine contents of melt inclusions and matrix glasses...
Gerlach, Terrance M.; Westrich, Henry R.; Casadevall, Thomas J.; Finnegan, David L.
Volcanic ash and aviation safety; proceedings of the First international symposium on Volcanic ash and aviation safety
Casadevall, Thomas J.
Understanding our fragile environment; Lessons from geochemical studies
An understanding of our fragile environment can begin with a recognition of the importance of certain elements, commonly called "minerals substances" (such as iron and zinc), in the lives of humans and animals and in the soils that support plants. This recognition is well deserved because these elements are essential for the life or optimum health...
Gough, Larry P.; Asher-Bolinder, Sigrid; Balistrieri, Laurie S.; Breit, George N.; Casadevall, Thomas J.; Crock, James G.; Cunningham, Kimberley I.; Duval, Joseph S.; Erdman, James A.; Erickson, Barbara M.; Ficklin, Walter H.; Jackson, Larry L.; Kotra, Rama K.; Leventhal, Joel S.; McNeal, James M.; Miller, William R.; Otton, James K.; Owen, Douglass E.; Plumlee, Geoffrey S.; Reimer, G. Michael; Severson, Ronald C.; Smith, Kathleen S.; Tidball, Ronald R.; Zielinski, Robert A.