Item talk:Q47819

ORCID:

 '@context': http://schema.org
 '@id': https://orcid.org/0000-0002-4795-1992
 '@reverse':
   creator:
     '@id': https://doi.org/10.3390/atmos11101038
     '@type': CreativeWork
     identifier:
       '@type': PropertyValue
       propertyID: doi
       value: 10.3390/atmos11101038
     name: Comparing Simulations of Umbrella-Cloud Growth and Ash Transport with
       Observations from Pinatubo, Kelud, and Calbuco Volcanoes
 '@type': Person
 address:
   '@type': PostalAddress
   addressCountry: US
 familyName: Mastin
 givenName: Larry
 mainEntityOfPage: https://orcid.org/0000-0002-4795-1992

USGS Staff Profile:

 '@context': https://schema.org
 '@type': Person
 affiliation:
 - '@type': Organization
   name: Fellow, Geological Society of America
 - '@type': Organization
   name: Member, American Geophysical Union
 - '@type': Organization
   name: Member, International Association of Volcanology and Chemistry of the Earth's
     Interior (IAVCEI)
 - '@type': Organization
   name: Member, American Meteorological Society
 - '@type': Organization
   name: Member, American Association
 award:
 - '2018: Fellow, Geological Society of America'
 description:
 - '@type': TextObject
   abstract: Physical Volcanologist with the Cascades Volcano Observatory
   additionalType: short description
 - '@type': TextObject
   abstract: I have spent much of my career working to understand, assess, and mitigate
     the hazards of volcanic ash.
   additionalType: staff profile page introductory statement
 - '@type': TextObject
   abstract: "To understand the nature of the hazard, I have studied tephra deposits\
     \ in the field and designed experiments to generate volcanic ash in the laboratory.\
     \  I also develop and use models that simulate the ascent of magma in conduits,\
     \ rise of ash in volcanic plumes, and downwind movement of ash clouds.  I have\
     \ been involved in the development and application of several models that simulate\
     \ these processes.I have worked with emergency managers, Volcanic Ash Advisory\
     \ Centers, and specialists from more than a dozen volcano observatories around\
     \ the world to improve the accuracy of volcanic ash forecasts, both for aviation\
     \ safety and for ground-based communities.  From 2010-2020 I served as co-chair\
     \ of the World Meteorological Organization\u2019s Volcanic Ash Scientific Advisory\
     \ Group, an expert panel dedicated to advising Volcanic Ash Advisory Centers\
     \ on the science and practice of volcanic ash-cloud detection and forecasting.My\
     \ professional life began as a mud logger working on the North Slope of Alaska\
     \ in 1980-81.  While studying for my master\u2019s degree at Stanford in 1982-84,\
     \ I worked part time for the Tectonophysics branch of the USGS in Menlo Park,\
     \ California, where I assisted with hydraulic fracturing stress measurements,\
     \ and studied the growth of fractures and the development of breakouts, i.e.\
     \ stress-induced zones of failure, around boreholes in sandstone.My Ph.D. work\
     \ at Stanford, from 1984-1988, under Professor David Pollard, involved field\
     \ and laboratory study of the growth of surface faults above a shallow dike\
     \ in Long Valley Caldera, California.   A second half of this study focused\
     \ on how the dike heated groundwater that erupted to produce several large explosion\
     \ craters, the Inyo Craters, north of the town of Mammoth Lakes.After completing\
     \ my Ph.D., I worked from 1988-1990 as a post-doctoral researcher in the Geophysics\
     \ Institute at the University of Karlsruhe, Germany.  My tasks included compiling\
     \ data for the European part of a World Stress Map project, and examining the\
     \ state of stress at a deep drillhole site in northern Bavaria.At the Cascades\
     \ Volcano Observatory, from 1990 through the late 2000s, I concentrated on the\
     \ role of water in the style and timing of eruptions.  This work involved, for\
     \ example, an examination of correlations between rainfall and gas explosions\
     \ at Mount St. Helens; on the conditions that produced explosive phreatomagmatic\
     \ eruptions at Kilauea, and effects of turbulent water-magma mixing on eruptive\
     \ style.Since the late 2000s, I have been involved primarily in volcanic ash\
     \ hazards, as described above."
   additionalType: personal statement
 - '@type': TextObject
   abstract: "2021: \u201CComparing the hazards of wildfire smoke and volcanic ash\
     \ in the Pacific Northwest\u201D, invited talk in the Cascadia Wildfire and\
     \ Urban Smoke seminar series, sponsored by Portland State University and the\
     \ Cascadia Innovation Corridor Iniative  (search for it on YouTube)"
   additionalType: staff profile page abstract
 - '@type': TextObject
   abstract: "2020: \u201CProtecting air travel from volcanic ash in the coming decade\u201D\
     , invited talk V08-15 at 2020 American Geophysical Union Fall Meeting."
   additionalType: staff profile page abstract
 - '@type': TextObject
   abstract: "2016: \u201CForecasting Ashfall Impacts from a Yellowstone Supereruption\u201D\
     , USGS Menlo Park Public Lecture, May 26, 2016, https://www.usgs.gov/media/videos/forecasting-ashfall-impacts-a-yellowstone-supereruption"
   additionalType: staff profile page abstract
 email: lgmastin@usgs.gov
 hasCredential:
 - '@type': EducationalOccupationalCredential
   name: 1988 Ph.D. Geomechanics, Stanford University
 - '@type': EducationalOccupationalCredential
   name: 1984 M.S. Engineering Geology, Stanford University
 - '@type': EducationalOccupationalCredential
   name: 1980 B.S. Geology, University of California, Davis (cum Laude)
 hasOccupation:
 - '@type': OrganizationalRole
   affiliatedOrganization:
     '@type': Organization
     name: Cascades Volcano Observatory
     url: https://www.usgs.gov/observatories/cvo
   roleName: Physical Volcanologist
   startDate: '2024-05-12T16:16:10.131891'
 identifier:
 - '@type': PropertyValue
   propertyID: GeoKB
   value: https://geokb.wikibase.cloud/entity/Q47819
 - '@type': PropertyValue
   propertyID: ORCID
   value: 0000-0002-4795-1992
 jobTitle: Physical Volcanologist
 knowsAbout:
 - '@type': Thing
   additionalType: self-claimed expertise
   name: Volcanic Ash Hazards
 - '@type': Thing
   additionalType: self-claimed expertise
   name: Explosive Eruptions
 - '@type': Thing
   additionalType: self-claimed expertise
   name: Ash and Aviation
 - '@type': Thing
   additionalType: self-claimed expertise
   name: Volcanic Ash Clouds
 - '@type': Thing
   additionalType: self-claimed expertise
   name: Volcanic Ash
 memberOf:
   '@type': OrganizationalRole
   member:
     '@type': Organization
     name: U.S. Geological Survey
   name: staff member
   startDate: '2024-05-12T16:16:10.128703'
 name: Larry G. Mastin, Ph.D.
 url: https://www.usgs.gov/staff-profiles/larry-g-mastin