Sequential sampling of Volatile Organic Compounds (VOCs) and atmospheric oxidation products in the Sor Rondane Mountains, East-Antarctica
Antarctica is considered the most pristine environment on Earth. However, a detailed understanding of present-day atmospheric transport pathways of particles and volatile organic compounds (VOC) from source to deposition in Antarctica and the atmospheric reactions they undergo is essential to docume...
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European Geosciences Union
2022
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ftunivgent:oai:archive.ugent.be:8748208 2023-06-11T04:06:25+02:00 Sequential sampling of Volatile Organic Compounds (VOCs) and atmospheric oxidation products in the Sor Rondane Mountains, East-Antarctica Van Overmeiren, Preben Delcloo, Andy De Causmaecker, Karen Mangold, Alexander Demeestere, Kristof Van Langenhove, Herman Walgraeve, Christophe 2022 application/pdf https://biblio.ugent.be/publication/8748208 http://hdl.handle.net/1854/LU-8748208 https://doi.org/10.5194/egusphere-egu22-12072 https://biblio.ugent.be/publication/8748208/file/8756655 eng eng European Geosciences Union https://biblio.ugent.be/publication/8748208 http://hdl.handle.net/1854/LU-8748208 http://dx.doi.org/10.5194/egusphere-egu22-12072 https://biblio.ugent.be/publication/8748208/file/8756655 Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess EGU General Assembly 2022, Abstracts Earth and Environmental Sciences conference info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion 2022 ftunivgent https://doi.org/10.5194/egusphere-egu22-12072 2023-05-10T22:55:30Z Antarctica is considered the most pristine environment on Earth. However, a detailed understanding of present-day atmospheric transport pathways of particles and volatile organic compounds (VOC) from source to deposition in Antarctica and the atmospheric reactions they undergo is essential to document biogeochemical cycles. Atmospheric composition plays an important role in present and near-future climate change. Airborne particles can serve as cloud condensation and ice nuclei and have therefore a strong influence on cloud formation and thus also on precipitation. This is of interest in Antarctica, since precipitation is the only source of mass gain to the Antarctic ice sheet which is expected to become the dominant contributor to global sea level rise in the 21st century. VOCs and their atmospheric oxidation products, secondary organic aerosols (SOA’s) can play an important role in this cloud formation process. However, current knowledge on VOCs and on the interaction between clouds, precipitation and aerosols in the Antarctic is still limited, both from direct observations and from regional climate models. VOCs are traditionally sampled using axial thermal desorption sampling tubes containing a sorbent such as Tenax TA in a passive or active (pumped) fashion. While with passive sampling it is possible to sample over longer periods of time, up to a year in clean air conditions, the temporal information is lost. Because of uncertainties on the sample rate, which is driven by diffusion, obtaining precise air concentrations with passive sampling can be difficult. To sample VOC’s and oxidations products unsupervised and in a remote environment such as Antarctica a new active sequential sorbent tube autosampler was developed and deployed at the atmospheric observatory of the Princess Elisabeth Antarctic research station (71.95° S, 23.35° E, 1390 m asl). The autosampler collected samples from December 2019 to October 2020 and from January 2021 to June 2021. The obtained data is also used to complement and interpret ... Conference Object Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ghent University Academic Bibliography Antarctic East Antarctica Sor Rondane Mountains ENVELOPE(25.000,25.000,-72.000,-72.000) Sor-Rondane ENVELOPE(25.000,25.000,-72.000,-72.000) The Antarctic |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences |
spellingShingle |
Earth and Environmental Sciences Van Overmeiren, Preben Delcloo, Andy De Causmaecker, Karen Mangold, Alexander Demeestere, Kristof Van Langenhove, Herman Walgraeve, Christophe Sequential sampling of Volatile Organic Compounds (VOCs) and atmospheric oxidation products in the Sor Rondane Mountains, East-Antarctica |
topic_facet |
Earth and Environmental Sciences |
description |
Antarctica is considered the most pristine environment on Earth. However, a detailed understanding of present-day atmospheric transport pathways of particles and volatile organic compounds (VOC) from source to deposition in Antarctica and the atmospheric reactions they undergo is essential to document biogeochemical cycles. Atmospheric composition plays an important role in present and near-future climate change. Airborne particles can serve as cloud condensation and ice nuclei and have therefore a strong influence on cloud formation and thus also on precipitation. This is of interest in Antarctica, since precipitation is the only source of mass gain to the Antarctic ice sheet which is expected to become the dominant contributor to global sea level rise in the 21st century. VOCs and their atmospheric oxidation products, secondary organic aerosols (SOA’s) can play an important role in this cloud formation process. However, current knowledge on VOCs and on the interaction between clouds, precipitation and aerosols in the Antarctic is still limited, both from direct observations and from regional climate models. VOCs are traditionally sampled using axial thermal desorption sampling tubes containing a sorbent such as Tenax TA in a passive or active (pumped) fashion. While with passive sampling it is possible to sample over longer periods of time, up to a year in clean air conditions, the temporal information is lost. Because of uncertainties on the sample rate, which is driven by diffusion, obtaining precise air concentrations with passive sampling can be difficult. To sample VOC’s and oxidations products unsupervised and in a remote environment such as Antarctica a new active sequential sorbent tube autosampler was developed and deployed at the atmospheric observatory of the Princess Elisabeth Antarctic research station (71.95° S, 23.35° E, 1390 m asl). The autosampler collected samples from December 2019 to October 2020 and from January 2021 to June 2021. The obtained data is also used to complement and interpret ... |
format |
Conference Object |
author |
Van Overmeiren, Preben Delcloo, Andy De Causmaecker, Karen Mangold, Alexander Demeestere, Kristof Van Langenhove, Herman Walgraeve, Christophe |
author_facet |
Van Overmeiren, Preben Delcloo, Andy De Causmaecker, Karen Mangold, Alexander Demeestere, Kristof Van Langenhove, Herman Walgraeve, Christophe |
author_sort |
Van Overmeiren, Preben |
title |
Sequential sampling of Volatile Organic Compounds (VOCs) and atmospheric oxidation products in the Sor Rondane Mountains, East-Antarctica |
title_short |
Sequential sampling of Volatile Organic Compounds (VOCs) and atmospheric oxidation products in the Sor Rondane Mountains, East-Antarctica |
title_full |
Sequential sampling of Volatile Organic Compounds (VOCs) and atmospheric oxidation products in the Sor Rondane Mountains, East-Antarctica |
title_fullStr |
Sequential sampling of Volatile Organic Compounds (VOCs) and atmospheric oxidation products in the Sor Rondane Mountains, East-Antarctica |
title_full_unstemmed |
Sequential sampling of Volatile Organic Compounds (VOCs) and atmospheric oxidation products in the Sor Rondane Mountains, East-Antarctica |
title_sort |
sequential sampling of volatile organic compounds (vocs) and atmospheric oxidation products in the sor rondane mountains, east-antarctica |
publisher |
European Geosciences Union |
publishDate |
2022 |
url |
https://biblio.ugent.be/publication/8748208 http://hdl.handle.net/1854/LU-8748208 https://doi.org/10.5194/egusphere-egu22-12072 https://biblio.ugent.be/publication/8748208/file/8756655 |
long_lat |
ENVELOPE(25.000,25.000,-72.000,-72.000) ENVELOPE(25.000,25.000,-72.000,-72.000) |
geographic |
Antarctic East Antarctica Sor Rondane Mountains Sor-Rondane The Antarctic |
geographic_facet |
Antarctic East Antarctica Sor Rondane Mountains Sor-Rondane The Antarctic |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
op_source |
EGU General Assembly 2022, Abstracts |
op_relation |
https://biblio.ugent.be/publication/8748208 http://hdl.handle.net/1854/LU-8748208 http://dx.doi.org/10.5194/egusphere-egu22-12072 https://biblio.ugent.be/publication/8748208/file/8756655 |
op_rights |
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/egusphere-egu22-12072 |
_version_ |
1768378386220056576 |