V32A:
Twenty-Five Years of Science from the 1991 Mount Pinatubo Volcano Eruption I

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Session ID#: 18210

Session Description:
The 1991 eruption of Pinatubo Volcano in the Philippines was one of the
largest volcanic eruptions of the 20th Century and spawned research in
many disciplines.For example, in the 25 years since the eruption,
volcanologists substantially improved understanding of how strain,
magmatic gases, and groundwater produce the distinctive patterns of
unrest that foretold Pinatubo’s eruption.Atmospheric scientists
discovered that winter warming (a forced positive mode of the Arctic
Oscillation) follows large, sulfate-rich tropical explosive eruptions,
that volcanic eruptions increase the probability of an El Niño in the
following year and affect the Atlantic Multidecadal Oscillation, and
they have quantified the effects of volcanic aerosols on ozone
depletion.On its 25th anniversary, we invite papers that emphasize new
insights arising from the Pinatubo eruption and its aftermath, in
volcanology, volcano-seismology, geochemistry, fluvial and watershed
processes, plume transport, effects on ozone, radiative forcing, and
climate response.
Primary Convener:  Alan Robock, Rutgers University, Department of Environmental Sciences, New Brunswick, United States
Conveners:  Christopher G Newhall, Mirisbiris Garden and Nature Center, Albay, Philippines, Florian Max M Schwandner, Jet Propulsion Laboratory, Pasadena, CA, United States and Allegra N. LeGrande, NASA Goddard Institute for Space Studies, New York, NY, United States
Chairs:  Florian Max M Schwandner, Jet Propulsion Laboratory, Pasadena, CA, United States and Alan Robock, Rutgers University, Department of Environmental Sciences, New Brunswick, United States
OSPA Liaison:  Alan Robock, Rutgers University, Department of Environmental Sciences, New Brunswick, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • GC - Global Environmental Change
Index Terms:

1616 Climate variability [GLOBAL CHANGE]
8408 Volcano/climate interactions [VOLCANOLOGY]
8428 Explosive volcanism [VOLCANOLOGY]
8488 Volcanic hazards and risks [VOLCANOLOGY]

Abstracts Submitted to this Session:

Key Lessons and New Directions from Pinatubo 1991 (Invited) (119998)
John S Pallister, USGS Cascades Volcano Observatory, Vancouver, WA, United States and Christopher G Newhall, Mirisbiris Garden and Nature Center, Santo Domingo, Philippines
The 1991 Eruption of Mt. Pinatubo: Changes in Climate and Atmospheric Chemistry- Lesson Learned and Questions Left Unanswered (Invited) (119199)
Owen B Toon, University of Colorado at Boulder, Boulder, CO, United States
Modern Day Re-analysis of Pinatubo SO2 Injection, Cloud dispersion and Stratospheric Aerosols (129100)
Pawan K Bhartia, NASA Goddard Space Flight Center, Earth Sciences Division- Atmospheres MC614, Greenbelt, MD, United States, Nickolay Anatoly Krotkov, NASA Goddard Space Flight Center, Greenbelt, United States, Valentina Aquila, Johns Hopkins University, Earth and Planetary Science, Baltimore, MD, United States, Eric J Hughes, University of Maryland College Park, College Park, MD, United States, Can Li, UMD ESSIC, College Park, MD, United States and Bradford L Fisher, Science Systems and Applications, Inc., Lanham, United States
Hydrological sensitivity of volcanically disturbed watersheds—a lesson reinforced at Pinatubo (142858)
Jon J Major and R.J. Janda, USGS Cascades Volcano Observatory, Vancouver, WA, United States
Pinatubo Lake Chemistry and Degassing 1991-2010 (144441)
Christopher G Newhall1,2, Florian Max M Schwandner2,3, Bruce W Christenson4, Cami A Apfelbeck5,6, Maria Carmencita Balbas Arpa7,8, Ramil Vaquilar7,9 and Ericson Bariso7, (1)Mirisbiris Garden and Nature Center, Albay, Philippines, (2)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (3)Jet Propulsion Laboratory, Pasadena, CA, United States, (4)GNS Science, Lower Hutt, New Zealand, (5)University of Washington Seattle Campus, Earth and Space Sciences, Seattle, WA, United States, (6)Water Resources Division, Bainbridge Island, WA, United States, (7)Philippine Institute of Volcanology and Seismology, Quezon City, Philippines, (8)Massey University, Palmeston North, New Zealand, (9)Saudi Aramco, Abqaiq, Saudi Arabia
Simulation of the Pinatubo Impact on the Red Sea Using Coupled Regional Ocean/Atmosphere Modeling System (168306)
Sergey Osipov and Georgiy L Stenchikov, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
The August 1991 Cerro Hudson Volcanic Eruption: A Re-analysis of SO2 Release Twenty-Five Years Later from a New TOMS Perspective (151960)
Bradford L Fisher1, Nickolay Anatoly Krotkov2, Pawan K Bhartia3, Georgina Miles4, David P Haffner1, Simon A Carn5 and Peter Leonard6, (1)Science Systems and Applications, Inc., Lanham, United States, (2)NASA Goddard Space Flight Center, Greenbelt, United States, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)Rutherford Appleton Laboratory, Didcot, United Kingdom, (5)Michigan Technological University, Department of Geological and Mining Engineering & Sciences, Houghton, MI, United States, (6)ADNET Systems, Inc., Lanham, MD, United States
Modeling Climate Impacts of the 1783-1784 Laki Eruption in Iceland (181394)
Brian Zambri, Rutgers University New Brunswick, New Brunswick, NJ, United States, Alan Robock, Rutgers University, Department of Environmental Sciences, New Brunswick, United States, Anja Schmidt, University of Cambridge, Department of Chemistry, Cambridge, United Kingdom and Michael J Mills, National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States

See more of: Volcanology, Geochemistry and Petrology