Simulation and Observations of Stratospheric Aerosols from the 2009 Sarychev Volcanic Eruption
©2011 by the American Geophysical Union. We used a general circulation model of Earth's climate to conduct simulations of the 12-16 June 2009 eruption of Sarychev volcano (48.1°N, 153.2°E). The model simulates the formation and transport of the stratospheric sulfate aerosol cloud from the erupt...
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ftcolostateunidc:oai:mountainscholar.org:20.500.11919/673 2023-05-15T18:09:20+02:00 Simulation and Observations of Stratospheric Aerosols from the 2009 Sarychev Volcanic Eruption Kravitz, B. Robock, A. Bourassa, A. Deshler, Terry Wu, D. Mattis, I. Finger, F. Hoffmann, A. Ritter, C. Bitar, L. Duck, T. J. Barnes, J. E. 2011-09-30 application/pdf https://hdl.handle.net/20.500.11919/673 https://doi.org/10.1029/2010JD015501 English eng eng University of Wyoming. Libraries Faculty Publications - Atmospheric Science https://hdl.handle.net/20.500.11919/673 doi:10.1029/2010JD015501 Atmospheric Science Faculty Publications Aerosol clouds Aerosol concentration Aerosol optical depths Data source Decay rate Earth's climate General circulation model High Latitudes In-situ measurement Limb scatter measurements Low latitudes Mt. Pinatubo Northern Hemispheres Optical depth Optical spectrograph Removal rate Stratospheric aerosols Stratospheric circulations Sulfate aerosols Volcanic eruptions Wyoming Atmospheric aerosols Atmospheric movements Atmospherics Climate models Earth (planet) Optical radar Particle size Sulfur dioxide Thermography (imaging) Upper atmosphere Volcanoes Computer simulation accuracy assessment aerosol altitude atmospheric modeling backscatter concentration (composition) data set latitude lidar magnitude mathematical analysis measurement method Northern Hemisphere numerical model observational method OSIRIS spatial distribution stratosphere volcanic cloud volcanic eruption Central Luzon Kuril Islands Luzon Matua Mount Pinatubo Philippines Russian Federation Sakhalin Sarychev Volcano Zambales Pinatubo Engineering Journal contribution 2011 ftcolostateunidc https://doi.org/20.500.11919/673 https://doi.org/10.1029/2010JD015501 2021-07-14T20:17:47Z ©2011 by the American Geophysical Union. We used a general circulation model of Earth's climate to conduct simulations of the 12-16 June 2009 eruption of Sarychev volcano (48.1°N, 153.2°E). The model simulates the formation and transport of the stratospheric sulfate aerosol cloud from the eruption and the resulting climate response. We compared optical depth results from these simulations with limb scatter measurements from the Optical Spectrograph and Infrared Imaging System (OSIRIS), in situ measurements from balloon-borne instruments lofted from Laramie, Wyoming (41.3°N, 105.7°W), and five lidar stations located throughout the Northern Hemisphere. The aerosol cloud covered most of the Northern Hemisphere, extending slightly into the tropics, with peak backscatter measured between 12 and 16 km in altitude. Aerosol concentrations returned to near-background levels by spring 2010. After accounting for expected sources of discrepancy between each of the data sources, the magnitudes and spatial distributions of aerosol optical depth due to the eruption largely agree. In conducting the simulations, we likely overestimated both particle size and the amount of SO2 injected into the stratosphere, resulting in modeled optical depth values that were a factor of 2-4 too high. Modeled optical depth due to the eruption shows a peak too late in high latitudes and too early in low latitudes, suggesting a problem with stratospheric circulation in the model. The model also shows a higher decay rate in optical depth than is observed, showing an inaccuracy in stratospheric removal rates in some seasons. The modeled removal rate of sulfate aerosols from the Sarychev eruption is higher than the rate calculated for aerosols from the 1991 eruption of Mt. Pinatubo. Other Non-Article Part of Journal/Newspaper Sakhalin Digital Collections of Colorado (Colorado State University) Journal of Geophysical Research 116 D18 |
institution |
Open Polar |
collection |
Digital Collections of Colorado (Colorado State University) |
op_collection_id |
ftcolostateunidc |
language |
English |
topic |
Aerosol clouds Aerosol concentration Aerosol optical depths Data source Decay rate Earth's climate General circulation model High Latitudes In-situ measurement Limb scatter measurements Low latitudes Mt. Pinatubo Northern Hemispheres Optical depth Optical spectrograph Removal rate Stratospheric aerosols Stratospheric circulations Sulfate aerosols Volcanic eruptions Wyoming Atmospheric aerosols Atmospheric movements Atmospherics Climate models Earth (planet) Optical radar Particle size Sulfur dioxide Thermography (imaging) Upper atmosphere Volcanoes Computer simulation accuracy assessment aerosol altitude atmospheric modeling backscatter concentration (composition) data set latitude lidar magnitude mathematical analysis measurement method Northern Hemisphere numerical model observational method OSIRIS spatial distribution stratosphere volcanic cloud volcanic eruption Central Luzon Kuril Islands Luzon Matua Mount Pinatubo Philippines Russian Federation Sakhalin Sarychev Volcano Zambales Pinatubo Engineering |
spellingShingle |
Aerosol clouds Aerosol concentration Aerosol optical depths Data source Decay rate Earth's climate General circulation model High Latitudes In-situ measurement Limb scatter measurements Low latitudes Mt. Pinatubo Northern Hemispheres Optical depth Optical spectrograph Removal rate Stratospheric aerosols Stratospheric circulations Sulfate aerosols Volcanic eruptions Wyoming Atmospheric aerosols Atmospheric movements Atmospherics Climate models Earth (planet) Optical radar Particle size Sulfur dioxide Thermography (imaging) Upper atmosphere Volcanoes Computer simulation accuracy assessment aerosol altitude atmospheric modeling backscatter concentration (composition) data set latitude lidar magnitude mathematical analysis measurement method Northern Hemisphere numerical model observational method OSIRIS spatial distribution stratosphere volcanic cloud volcanic eruption Central Luzon Kuril Islands Luzon Matua Mount Pinatubo Philippines Russian Federation Sakhalin Sarychev Volcano Zambales Pinatubo Engineering Kravitz, B. Robock, A. Bourassa, A. Deshler, Terry Wu, D. Mattis, I. Finger, F. Hoffmann, A. Ritter, C. Bitar, L. Duck, T. J. Barnes, J. E. Simulation and Observations of Stratospheric Aerosols from the 2009 Sarychev Volcanic Eruption |
topic_facet |
Aerosol clouds Aerosol concentration Aerosol optical depths Data source Decay rate Earth's climate General circulation model High Latitudes In-situ measurement Limb scatter measurements Low latitudes Mt. Pinatubo Northern Hemispheres Optical depth Optical spectrograph Removal rate Stratospheric aerosols Stratospheric circulations Sulfate aerosols Volcanic eruptions Wyoming Atmospheric aerosols Atmospheric movements Atmospherics Climate models Earth (planet) Optical radar Particle size Sulfur dioxide Thermography (imaging) Upper atmosphere Volcanoes Computer simulation accuracy assessment aerosol altitude atmospheric modeling backscatter concentration (composition) data set latitude lidar magnitude mathematical analysis measurement method Northern Hemisphere numerical model observational method OSIRIS spatial distribution stratosphere volcanic cloud volcanic eruption Central Luzon Kuril Islands Luzon Matua Mount Pinatubo Philippines Russian Federation Sakhalin Sarychev Volcano Zambales Pinatubo Engineering |
description |
©2011 by the American Geophysical Union. We used a general circulation model of Earth's climate to conduct simulations of the 12-16 June 2009 eruption of Sarychev volcano (48.1°N, 153.2°E). The model simulates the formation and transport of the stratospheric sulfate aerosol cloud from the eruption and the resulting climate response. We compared optical depth results from these simulations with limb scatter measurements from the Optical Spectrograph and Infrared Imaging System (OSIRIS), in situ measurements from balloon-borne instruments lofted from Laramie, Wyoming (41.3°N, 105.7°W), and five lidar stations located throughout the Northern Hemisphere. The aerosol cloud covered most of the Northern Hemisphere, extending slightly into the tropics, with peak backscatter measured between 12 and 16 km in altitude. Aerosol concentrations returned to near-background levels by spring 2010. After accounting for expected sources of discrepancy between each of the data sources, the magnitudes and spatial distributions of aerosol optical depth due to the eruption largely agree. In conducting the simulations, we likely overestimated both particle size and the amount of SO2 injected into the stratosphere, resulting in modeled optical depth values that were a factor of 2-4 too high. Modeled optical depth due to the eruption shows a peak too late in high latitudes and too early in low latitudes, suggesting a problem with stratospheric circulation in the model. The model also shows a higher decay rate in optical depth than is observed, showing an inaccuracy in stratospheric removal rates in some seasons. The modeled removal rate of sulfate aerosols from the Sarychev eruption is higher than the rate calculated for aerosols from the 1991 eruption of Mt. Pinatubo. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Kravitz, B. Robock, A. Bourassa, A. Deshler, Terry Wu, D. Mattis, I. Finger, F. Hoffmann, A. Ritter, C. Bitar, L. Duck, T. J. Barnes, J. E. |
author_facet |
Kravitz, B. Robock, A. Bourassa, A. Deshler, Terry Wu, D. Mattis, I. Finger, F. Hoffmann, A. Ritter, C. Bitar, L. Duck, T. J. Barnes, J. E. |
author_sort |
Kravitz, B. |
title |
Simulation and Observations of Stratospheric Aerosols from the 2009 Sarychev Volcanic Eruption |
title_short |
Simulation and Observations of Stratospheric Aerosols from the 2009 Sarychev Volcanic Eruption |
title_full |
Simulation and Observations of Stratospheric Aerosols from the 2009 Sarychev Volcanic Eruption |
title_fullStr |
Simulation and Observations of Stratospheric Aerosols from the 2009 Sarychev Volcanic Eruption |
title_full_unstemmed |
Simulation and Observations of Stratospheric Aerosols from the 2009 Sarychev Volcanic Eruption |
title_sort |
simulation and observations of stratospheric aerosols from the 2009 sarychev volcanic eruption |
publisher |
University of Wyoming. Libraries |
publishDate |
2011 |
url |
https://hdl.handle.net/20.500.11919/673 https://doi.org/10.1029/2010JD015501 |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_source |
Atmospheric Science Faculty Publications |
op_relation |
Faculty Publications - Atmospheric Science https://hdl.handle.net/20.500.11919/673 doi:10.1029/2010JD015501 |
op_doi |
https://doi.org/20.500.11919/673 https://doi.org/10.1029/2010JD015501 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
D18 |
_version_ |
1766181825990885376 |