Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE
We report on chemical aircraft measurements in pollution plumes transported into the European sector of the Arctic from forest fires and urban sources in North America and Siberia. Our observations were part of the POLARCAT subproject GRACE (Greenland Aerosol and Chemistry Experiment (GRACE) perform...
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ftdlr:oai:elib.dlr.de:67216 2024-05-19T07:33:12+00:00 Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE Roiger, Anke Schlager, Hans Arnold, Frank Lichtenstern, Michael Stock, Paul Scheibe, Monika Schäfler, Andreas 2010-06-11 https://elib.dlr.de/67216/ unknown Roiger, Anke und Schlager, Hans und Arnold, Frank und Lichtenstern, Michael und Stock, Paul und Scheibe, Monika und Schäfler, Andreas (2010) Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE. IPY Oslo Science conference, 2010-12-08 - 2010-12-12, Oslo. Atmosphärische Spurenstoffe Konferenzbeitrag NonPeerReviewed 2010 ftdlr 2024-04-25T00:19:03Z We report on chemical aircraft measurements in pollution plumes transported into the European sector of the Arctic from forest fires and urban sources in North America and Siberia. Our observations were part of the POLARCAT subproject GRACE (Greenland Aerosol and Chemistry Experiment (GRACE) performed in July 2008 using the DLR Falcon research aircraft. Data were sampled during 16 flights covering altitudes up to 12 km in order to study the pathways, dispersion and chemical processing of pollution during long-range transport into the Arctic. We found that the entire free troposphere above 4 km was strongly polluted and detected more than 30 distinct pollution plumes with enhanced CO and NOy mixing ratios of up to 300 and 1.5 nmol/mol (ppbv), respectively. According to FLEXPART analysis, the plumes were sampled after transport times of 5-10 days from Canadian fires and 10-15 days from Siberian fires. Interestingly, an anthropogenic pollution plume originating from East Asia was sampled in the lowermost stratosphere at an altitude of 11.3 km after being transported over the North pole. We will discuss differences in the chemical composition of the probed pollution plumes (e.g. in the ozone mixing ratios) dependent on the source region and transport history. Simulations with a photochemical model, CiTTyCAT, were used to study the chemical evolution in the pollution plumes during transport from the measurement area to Europe. Conference Object Arctic Arctic Greenland North Pole Siberia German Aerospace Center: elib - DLR electronic library |
institution |
Open Polar |
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German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
unknown |
topic |
Atmosphärische Spurenstoffe |
spellingShingle |
Atmosphärische Spurenstoffe Roiger, Anke Schlager, Hans Arnold, Frank Lichtenstern, Michael Stock, Paul Scheibe, Monika Schäfler, Andreas Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE |
topic_facet |
Atmosphärische Spurenstoffe |
description |
We report on chemical aircraft measurements in pollution plumes transported into the European sector of the Arctic from forest fires and urban sources in North America and Siberia. Our observations were part of the POLARCAT subproject GRACE (Greenland Aerosol and Chemistry Experiment (GRACE) performed in July 2008 using the DLR Falcon research aircraft. Data were sampled during 16 flights covering altitudes up to 12 km in order to study the pathways, dispersion and chemical processing of pollution during long-range transport into the Arctic. We found that the entire free troposphere above 4 km was strongly polluted and detected more than 30 distinct pollution plumes with enhanced CO and NOy mixing ratios of up to 300 and 1.5 nmol/mol (ppbv), respectively. According to FLEXPART analysis, the plumes were sampled after transport times of 5-10 days from Canadian fires and 10-15 days from Siberian fires. Interestingly, an anthropogenic pollution plume originating from East Asia was sampled in the lowermost stratosphere at an altitude of 11.3 km after being transported over the North pole. We will discuss differences in the chemical composition of the probed pollution plumes (e.g. in the ozone mixing ratios) dependent on the source region and transport history. Simulations with a photochemical model, CiTTyCAT, were used to study the chemical evolution in the pollution plumes during transport from the measurement area to Europe. |
format |
Conference Object |
author |
Roiger, Anke Schlager, Hans Arnold, Frank Lichtenstern, Michael Stock, Paul Scheibe, Monika Schäfler, Andreas |
author_facet |
Roiger, Anke Schlager, Hans Arnold, Frank Lichtenstern, Michael Stock, Paul Scheibe, Monika Schäfler, Andreas |
author_sort |
Roiger, Anke |
title |
Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE |
title_short |
Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE |
title_full |
Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE |
title_fullStr |
Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE |
title_full_unstemmed |
Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE |
title_sort |
impact of biomass burning and anthropogenic emissions on the chemical composition of the summertime arctic troposphere - aircraft observations during polarcat-grace |
publishDate |
2010 |
url |
https://elib.dlr.de/67216/ |
genre |
Arctic Arctic Greenland North Pole Siberia |
genre_facet |
Arctic Arctic Greenland North Pole Siberia |
op_relation |
Roiger, Anke und Schlager, Hans und Arnold, Frank und Lichtenstern, Michael und Stock, Paul und Scheibe, Monika und Schäfler, Andreas (2010) Impact of Biomass Burning and Anthropogenic Emissions on the Chemical Composition of the summertime Arctic Troposphere - Aircraft Observations during POLARCAT-GRACE. IPY Oslo Science conference, 2010-12-08 - 2010-12-12, Oslo. |
_version_ |
1799471302780649472 |