A case study of pyro-convection using transport model and remote sensing data
International audience Summer 2004 saw severe forest fires in Alaska and the Yukon Territory that were mostly triggered by lightning strikes. The area burned (>2.7×10 6 ha) in the year 2004 was the highest on record to date in Alaska. Pollutant emissions from the fires lead to violation of federa...
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ftccsdartic:oai:HAL:hal-00295827v1 2023-05-15T18:48:49+02:00 A case study of pyro-convection using transport model and remote sensing data Damoah, R. Spichtinger, N. Servranckx, R. Fromm, M. Eloranta, E. W. Razenkov, I. A. James, P. Shulski, M. Forster, C. Stohl, A. Department of Ecology Canadian Meteorological Centre (CMC) Environment and Climate Change Canada Naval Research Laboratory (NRL) Department of Physics Madison University of Wisconsin-Madison Hadley Centre for Climate Prediction and Research United Kingdom Met Office Exeter Alaska Climate Research Center University of Alaska Fairbanks (UAF) Norwegian Institute for Air Research (NILU) 2006-01-26 https://hal.archives-ouvertes.fr/hal-00295827 https://hal.archives-ouvertes.fr/hal-00295827/document https://hal.archives-ouvertes.fr/hal-00295827/file/acp-6-173-2006.pdf en eng HAL CCSD European Geosciences Union hal-00295827 https://hal.archives-ouvertes.fr/hal-00295827 https://hal.archives-ouvertes.fr/hal-00295827/document https://hal.archives-ouvertes.fr/hal-00295827/file/acp-6-173-2006.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.archives-ouvertes.fr/hal-00295827 Atmospheric Chemistry and Physics, European Geosciences Union, 2006, 6 (1), pp.173-185 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2006 ftccsdartic 2021-05-30T00:31:41Z International audience Summer 2004 saw severe forest fires in Alaska and the Yukon Territory that were mostly triggered by lightning strikes. The area burned (>2.7×10 6 ha) in the year 2004 was the highest on record to date in Alaska. Pollutant emissions from the fires lead to violation of federal standards for air quality in Fairbanks. This paper studies deep convection events that occurred in the burning regions at the end of June 2004. The convection was likely enhanced by the strong forest fire activity (so-called pyro-convection) and penetrated into the lower stratosphere, up to about 3 km above the tropopause. Emissions from the fires did not only perturb the UT/LS locally, but also regionally. POAM data at the approximate location of Edmonton (53.5° N, 113.5° W) show that the UT/LS aerosol extinction was enhanced by a factor of 4 relative to unperturbed conditions. Simulations with the particle dispersion model FLEXPART with the deep convective transport scheme turned on showed transport of forest fire emissions into the stratosphere, in qualitatively good agreement with the enhancements seen in the POAM data. A corresponding simulation with the deep convection scheme turned off did not result in such deep vertical transport. Lidar measurements at Wisconsin on 30 June also show the presence of substantial aerosol loading in the UT/LS, up to about 13 km. In fact, the FLEXPART results suggest that this aerosol plume originated from the Yukon Territory on 25 June. Article in Journal/Newspaper Alaska Yukon Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Fairbanks Yukon |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Damoah, R. Spichtinger, N. Servranckx, R. Fromm, M. Eloranta, E. W. Razenkov, I. A. James, P. Shulski, M. Forster, C. Stohl, A. A case study of pyro-convection using transport model and remote sensing data |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Summer 2004 saw severe forest fires in Alaska and the Yukon Territory that were mostly triggered by lightning strikes. The area burned (>2.7×10 6 ha) in the year 2004 was the highest on record to date in Alaska. Pollutant emissions from the fires lead to violation of federal standards for air quality in Fairbanks. This paper studies deep convection events that occurred in the burning regions at the end of June 2004. The convection was likely enhanced by the strong forest fire activity (so-called pyro-convection) and penetrated into the lower stratosphere, up to about 3 km above the tropopause. Emissions from the fires did not only perturb the UT/LS locally, but also regionally. POAM data at the approximate location of Edmonton (53.5° N, 113.5° W) show that the UT/LS aerosol extinction was enhanced by a factor of 4 relative to unperturbed conditions. Simulations with the particle dispersion model FLEXPART with the deep convective transport scheme turned on showed transport of forest fire emissions into the stratosphere, in qualitatively good agreement with the enhancements seen in the POAM data. A corresponding simulation with the deep convection scheme turned off did not result in such deep vertical transport. Lidar measurements at Wisconsin on 30 June also show the presence of substantial aerosol loading in the UT/LS, up to about 13 km. In fact, the FLEXPART results suggest that this aerosol plume originated from the Yukon Territory on 25 June. |
author2 |
Department of Ecology Canadian Meteorological Centre (CMC) Environment and Climate Change Canada Naval Research Laboratory (NRL) Department of Physics Madison University of Wisconsin-Madison Hadley Centre for Climate Prediction and Research United Kingdom Met Office Exeter Alaska Climate Research Center University of Alaska Fairbanks (UAF) Norwegian Institute for Air Research (NILU) |
format |
Article in Journal/Newspaper |
author |
Damoah, R. Spichtinger, N. Servranckx, R. Fromm, M. Eloranta, E. W. Razenkov, I. A. James, P. Shulski, M. Forster, C. Stohl, A. |
author_facet |
Damoah, R. Spichtinger, N. Servranckx, R. Fromm, M. Eloranta, E. W. Razenkov, I. A. James, P. Shulski, M. Forster, C. Stohl, A. |
author_sort |
Damoah, R. |
title |
A case study of pyro-convection using transport model and remote sensing data |
title_short |
A case study of pyro-convection using transport model and remote sensing data |
title_full |
A case study of pyro-convection using transport model and remote sensing data |
title_fullStr |
A case study of pyro-convection using transport model and remote sensing data |
title_full_unstemmed |
A case study of pyro-convection using transport model and remote sensing data |
title_sort |
case study of pyro-convection using transport model and remote sensing data |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.archives-ouvertes.fr/hal-00295827 https://hal.archives-ouvertes.fr/hal-00295827/document https://hal.archives-ouvertes.fr/hal-00295827/file/acp-6-173-2006.pdf |
geographic |
Fairbanks Yukon |
geographic_facet |
Fairbanks Yukon |
genre |
Alaska Yukon |
genre_facet |
Alaska Yukon |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.archives-ouvertes.fr/hal-00295827 Atmospheric Chemistry and Physics, European Geosciences Union, 2006, 6 (1), pp.173-185 |
op_relation |
hal-00295827 https://hal.archives-ouvertes.fr/hal-00295827 https://hal.archives-ouvertes.fr/hal-00295827/document https://hal.archives-ouvertes.fr/hal-00295827/file/acp-6-173-2006.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766242115575087104 |