The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission: Design, execution, and first results
The NASA Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission was conducted in two 3-week deployments based in Alaska (April 2008) and western Canada (June-July 2008). Its goal was to better understand the factors driving current changes in Arctic atmos...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2010
|
Subjects: | |
Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-660 https://doi.org/10.5194/acp-10-5191-2010 |
id |
ftncar:oai:drupal-site.org:articles_10397 |
---|---|
record_format |
openpolar |
spelling |
ftncar:oai:drupal-site.org:articles_10397 2023-09-05T13:16:30+02:00 The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission: Design, execution, and first results Jacob, D. (author) Crawford, J. (author) Maring, H. (author) Clarke, A. (author) Dibb, J. (author) Emmons, Louisa (author) Ferrare, R. (author) Hostetler, C. (author) Russell, P. (author) Singh, H. (author) Thompson, A. (author) Shaw, G. (author) McCauley, E. (author) Pederson, J. (author) Fisher, Jenny (author) 2010-06-14 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-660 https://doi.org/10.5194/acp-10-5191-2010 en eng Copernicus Publications Atmospheric Chemistry and Physics http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-660 doi:10.5194/acp-10-5191-2010 ark:/85065/d7125t4r Copyright Author(s) 2010. This work is distributed under the Creative Commons Attribution 3.0 License. Text article 2010 ftncar https://doi.org/10.5194/acp-10-5191-2010 2023-08-14T18:41:08Z The NASA Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission was conducted in two 3-week deployments based in Alaska (April 2008) and western Canada (June-July 2008). Its goal was to better understand the factors driving current changes in Arctic atmospheric composition and climate, including (1) influx of mid-latitude pollution, (2) boreal forest fires, (3) aerosol radiative forcing, and (4) chemical processes. The June-July deployment was preceded by one week of flights over California (ARCTAS-CARB) focused on (1) improving state emission inventories for greenhouse gases and aerosols, (2) providing observations to test and improve models of ozone and aerosol pollution. ARCTAS involved three aircraft: a DC-8 with a detailed chemical payload, a P-3 with an extensive aerosol and radiometric payload, and a B-200 with aerosol remote sensing instrumentation. The aircraft data augmented satellite observations of Arctic atmospheric composition, in particular from the NASA A-Train. The spring phase (ARCTAS-A) revealed pervasive Asian pollution throughout the Arctic as well as significant European pollution below 2 km. Unusually large Siberian fires in April 2008 caused high concentrations of carbonaceous aerosols and also affected ozone. Satellite observations of BrO column hotspots were found not to be related to Arctic boundary layer events but instead to tropopause depressions, suggesting the presence of elevated inorganic bromine (5-10 pptv) in the lower stratosphere. Fresh fire plumes from Canada and California sampled during the summer phase (ARCTAS-B) indicated low NOx emission factors from the fires, rapid conversion of NOx to PAN, no significant secondary aerosol production, and no significant ozone enhancements except when mixed with urban pollution. Article in Journal/Newspaper Arctic Alaska OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Canada Atmospheric Chemistry and Physics 10 11 5191 5212 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
The NASA Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission was conducted in two 3-week deployments based in Alaska (April 2008) and western Canada (June-July 2008). Its goal was to better understand the factors driving current changes in Arctic atmospheric composition and climate, including (1) influx of mid-latitude pollution, (2) boreal forest fires, (3) aerosol radiative forcing, and (4) chemical processes. The June-July deployment was preceded by one week of flights over California (ARCTAS-CARB) focused on (1) improving state emission inventories for greenhouse gases and aerosols, (2) providing observations to test and improve models of ozone and aerosol pollution. ARCTAS involved three aircraft: a DC-8 with a detailed chemical payload, a P-3 with an extensive aerosol and radiometric payload, and a B-200 with aerosol remote sensing instrumentation. The aircraft data augmented satellite observations of Arctic atmospheric composition, in particular from the NASA A-Train. The spring phase (ARCTAS-A) revealed pervasive Asian pollution throughout the Arctic as well as significant European pollution below 2 km. Unusually large Siberian fires in April 2008 caused high concentrations of carbonaceous aerosols and also affected ozone. Satellite observations of BrO column hotspots were found not to be related to Arctic boundary layer events but instead to tropopause depressions, suggesting the presence of elevated inorganic bromine (5-10 pptv) in the lower stratosphere. Fresh fire plumes from Canada and California sampled during the summer phase (ARCTAS-B) indicated low NOx emission factors from the fires, rapid conversion of NOx to PAN, no significant secondary aerosol production, and no significant ozone enhancements except when mixed with urban pollution. |
author2 |
Jacob, D. (author) Crawford, J. (author) Maring, H. (author) Clarke, A. (author) Dibb, J. (author) Emmons, Louisa (author) Ferrare, R. (author) Hostetler, C. (author) Russell, P. (author) Singh, H. (author) Thompson, A. (author) Shaw, G. (author) McCauley, E. (author) Pederson, J. (author) Fisher, Jenny (author) |
format |
Article in Journal/Newspaper |
title |
The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission: Design, execution, and first results |
spellingShingle |
The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission: Design, execution, and first results |
title_short |
The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission: Design, execution, and first results |
title_full |
The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission: Design, execution, and first results |
title_fullStr |
The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission: Design, execution, and first results |
title_full_unstemmed |
The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission: Design, execution, and first results |
title_sort |
arctic research of the composition of the troposphere from aircraft and satellites (arctas) mission: design, execution, and first results |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-660 https://doi.org/10.5194/acp-10-5191-2010 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_relation |
Atmospheric Chemistry and Physics http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-660 doi:10.5194/acp-10-5191-2010 ark:/85065/d7125t4r |
op_rights |
Copyright Author(s) 2010. This work is distributed under the Creative Commons Attribution 3.0 License. |
op_doi |
https://doi.org/10.5194/acp-10-5191-2010 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
10 |
container_issue |
11 |
container_start_page |
5191 |
op_container_end_page |
5212 |
_version_ |
1776198055480000512 |