Stratospheric impact of the Chisholm pyrocumulonimbus eruption: 2. Vertical profile perspective
Extreme pyrocumulonimbus (pyroCb) blowups that pollute the stratosphere have been documented on at least five occasions. However, the frequency of these events is still uncertain. One published pyroCb case study, the Chisholm Fire in May 2001, was restricted to the convective phase and its immediate...
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-694 https://doi.org/10.1029/2007JD009147 |
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ftncar:oai:drupal-site.org:articles_6361 2023-10-01T03:54:12+02:00 Stratospheric impact of the Chisholm pyrocumulonimbus eruption: 2. Vertical profile perspective Fromm, M. (author) Shettle, E. (author) Fricke, K. (author) Ritter, C. (author) Trickl, T. (author) Giehl, H. (author) Gerding, M. (author) Barnes, J. (author) O'Neill, M. (author) Massie, Steven (author) Blum, U. (author) McDermid, I. (author) Leblanc, T. (author) Deshler, T. (author) 2008-04-17 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-694 https://doi.org/10.1029/2007JD009147 en eng American Geophysical Union Journal of Geophysical Research-Atmospheres http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-694 doi:10.1029/2007JD009147 ark:/85065/d7h1326s An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union. PyroCb Stratosphere Smoke Text article 2008 ftncar https://doi.org/10.1029/2007JD009147 2023-09-04T18:26:46Z Extreme pyrocumulonimbus (pyroCb) blowups that pollute the stratosphere have been documented on at least five occasions. However, the frequency of these events is still uncertain. One published pyroCb case study, the Chisholm Fire in May 2001, was restricted to the convective phase and its immediate aftermath. Here and in a companion paper we describe the stratospheric impact of the Chisholm pyroCb. The companion paper focuses on nadir satellite views of the plume. This paper synthesizes a broad array of space-, balloon-, and ground-based profile measurements. The Chisholm pyroCb, which we identify as the singular cause of stratospheric aerosol increase in northern spring/summer of 2001, created a doubling of the zonal average aerosol optical depth in the lowermost stratosphere. The meridional spread of the plume was from the tropics (20°N) to the high Arctic (79°N) within the first month. The stratospheric Chisholm smoke became a hemispheric phenomenon in midlatitudes and northern tropics and persisted for at least 3 months. A size-resolved particle concentration profile over Laramie, Wyoming, indicated a lower stratospheric aerosol with a twofold to threefold increase in volume of particles with radii between 0.3 and 0.6 μm. We also find evidence of localized warming in the air masses of four of the lidar-measured smoke layers. This work contains the first reported stratospheric smoke layers measured by lidar at Ny Ålesund, Esrange, Kühlungsborn, Garmisch-Partenkirchen, Boulder, and Mauna Loa. In addition, the first detection of smoke-enhanced aerosol extinction at near IR wavelengths by the Halogen Occultation Experiment (HALOE) is introduced. Article in Journal/Newspaper Arctic Ny Ålesund Ny-Ålesund OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Esrange ENVELOPE(21.117,21.117,67.883,67.883) Ny-Ålesund Journal of Geophysical Research 113 D8 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
topic |
PyroCb Stratosphere Smoke |
spellingShingle |
PyroCb Stratosphere Smoke Stratospheric impact of the Chisholm pyrocumulonimbus eruption: 2. Vertical profile perspective |
topic_facet |
PyroCb Stratosphere Smoke |
description |
Extreme pyrocumulonimbus (pyroCb) blowups that pollute the stratosphere have been documented on at least five occasions. However, the frequency of these events is still uncertain. One published pyroCb case study, the Chisholm Fire in May 2001, was restricted to the convective phase and its immediate aftermath. Here and in a companion paper we describe the stratospheric impact of the Chisholm pyroCb. The companion paper focuses on nadir satellite views of the plume. This paper synthesizes a broad array of space-, balloon-, and ground-based profile measurements. The Chisholm pyroCb, which we identify as the singular cause of stratospheric aerosol increase in northern spring/summer of 2001, created a doubling of the zonal average aerosol optical depth in the lowermost stratosphere. The meridional spread of the plume was from the tropics (20°N) to the high Arctic (79°N) within the first month. The stratospheric Chisholm smoke became a hemispheric phenomenon in midlatitudes and northern tropics and persisted for at least 3 months. A size-resolved particle concentration profile over Laramie, Wyoming, indicated a lower stratospheric aerosol with a twofold to threefold increase in volume of particles with radii between 0.3 and 0.6 μm. We also find evidence of localized warming in the air masses of four of the lidar-measured smoke layers. This work contains the first reported stratospheric smoke layers measured by lidar at Ny Ålesund, Esrange, Kühlungsborn, Garmisch-Partenkirchen, Boulder, and Mauna Loa. In addition, the first detection of smoke-enhanced aerosol extinction at near IR wavelengths by the Halogen Occultation Experiment (HALOE) is introduced. |
author2 |
Fromm, M. (author) Shettle, E. (author) Fricke, K. (author) Ritter, C. (author) Trickl, T. (author) Giehl, H. (author) Gerding, M. (author) Barnes, J. (author) O'Neill, M. (author) Massie, Steven (author) Blum, U. (author) McDermid, I. (author) Leblanc, T. (author) Deshler, T. (author) |
format |
Article in Journal/Newspaper |
title |
Stratospheric impact of the Chisholm pyrocumulonimbus eruption: 2. Vertical profile perspective |
title_short |
Stratospheric impact of the Chisholm pyrocumulonimbus eruption: 2. Vertical profile perspective |
title_full |
Stratospheric impact of the Chisholm pyrocumulonimbus eruption: 2. Vertical profile perspective |
title_fullStr |
Stratospheric impact of the Chisholm pyrocumulonimbus eruption: 2. Vertical profile perspective |
title_full_unstemmed |
Stratospheric impact of the Chisholm pyrocumulonimbus eruption: 2. Vertical profile perspective |
title_sort |
stratospheric impact of the chisholm pyrocumulonimbus eruption: 2. vertical profile perspective |
publisher |
American Geophysical Union |
publishDate |
2008 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-694 https://doi.org/10.1029/2007JD009147 |
long_lat |
ENVELOPE(21.117,21.117,67.883,67.883) |
geographic |
Arctic Esrange Ny-Ålesund |
geographic_facet |
Arctic Esrange Ny-Ålesund |
genre |
Arctic Ny Ålesund Ny-Ålesund |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund |
op_relation |
Journal of Geophysical Research-Atmospheres http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-694 doi:10.1029/2007JD009147 ark:/85065/d7h1326s |
op_rights |
An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2007JD009147 |
container_title |
Journal of Geophysical Research |
container_volume |
113 |
container_issue |
D8 |
_version_ |
1778521615787622400 |