Distribution of hydrogen peroxide over Europe during the BLUESKY aircraft campaign
In this work we present airborne in situ trace gas observations of hydrogen peroxide (H$_2$O$_2$) and the sum of organic hydroperoxides over Europe during the Chemistry of the Atmosphere – Field Experiments in Europe (CAFE-EU, also known as BLUESKY) aircraft campaign using a wet chemical monitoring...
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European Geosciences Union
2022
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ftubkarlsruhe:oai:EVASTAR-Karlsruhe.de:1000149792 2023-06-11T04:15:01+02:00 Distribution of hydrogen peroxide over Europe during the BLUESKY aircraft campaign Hamryszczak, Zaneta T. Pozzer, Andrea Obersteiner, Florian Bohn, Birger Steil, Benedikt Lelieveld, Jos Fischer, Horst 2022-08-11 application/pdf https://publikationen.bibliothek.kit.edu/1000149792 https://publikationen.bibliothek.kit.edu/1000149792/149163418 https://doi.org/10.5445/IR/1000149792 eng eng European Geosciences Union info:eu-repo/semantics/altIdentifier/wos/000828630700001 info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-22-9483-2022 info:eu-repo/semantics/altIdentifier/issn/1680-7316 info:eu-repo/semantics/altIdentifier/issn/1680-7324 https://publikationen.bibliothek.kit.edu/1000149792 https://publikationen.bibliothek.kit.edu/1000149792/149163418 https://doi.org/10.5445/IR/1000149792 https://creativecommons.org/licenses/by/4.0/deed.de info:eu-repo/semantics/openAccess Atmospheric Chemistry and Physics, 22 (14), 9483–9497 ISSN: 1680-7316, 1680-7324 ddc:550 Earth sciences info:eu-repo/classification/ddc/550 doc-type:article Text info:eu-repo/semantics/article article info:eu-repo/semantics/publishedVersion 2022 ftubkarlsruhe https://doi.org/10.5445/IR/100014979210.5194/acp-22-9483-2022 2023-04-23T22:11:48Z In this work we present airborne in situ trace gas observations of hydrogen peroxide (H$_2$O$_2$) and the sum of organic hydroperoxides over Europe during the Chemistry of the Atmosphere – Field Experiments in Europe (CAFE-EU, also known as BLUESKY) aircraft campaign using a wet chemical monitoring system, the HYdrogen Peroxide and Higher Organic Peroxide (HYPHOP) monitor. The campaign took place in May–June 2020 over central and southern Europe with two additional flights dedicated to the North Atlantic flight corridor. Airborne measurements were performed on the High Altitude and LOng-range (HALO) research operating out of Oberpfaffenhofen (southern Germany). We report average mixing ratios for H$_2$O$_2$ of 0.32 ± 0.25, 0.39 ± 0.23 and 0.38 ± 0.21 ppbv in the upper and middle troposphere and the boundary layer over Europe, respectively. Vertical profiles of measured H$_2$O$_2$ reveal a significant decrease, in particular above the boundary layer, contrary to previous observations, most likely due to cloud scavenging and subsequent rainout of soluble species. In general, the expected inverted C-shaped vertical trend with maximum hydrogen peroxide mixing ratios at 3–7 km was not found during BLUESKY. This deviates from observations during previous airborne studies over Europe, i.e., 1.64 ± 0.83 ppb$_v$ during the HOOVER campaign and 1.67 ± 0.97 ppbv during UTOPIHAN-ACT II/III. Simulations with the global chemistry–transport model EMAC partly reproduce the strong effect of rainout loss on the vertical profile of H$_2$O$_2$. A sensitivity study without H$_2$O$_2$ scavenging performed using EMAC confirms the strong influence of clouds and precipitation scavenging on hydrogen peroxide concentrations. Differences between model simulations and observations are most likely due to difficulties in the simulation of wet scavenging processes due to the limited model resolution. Article in Journal/Newspaper North Atlantic KITopen (Karlsruhe Institute of Technologie) Bluesky ENVELOPE(-118.236,-118.236,56.067,56.067) |
institution |
Open Polar |
collection |
KITopen (Karlsruhe Institute of Technologie) |
op_collection_id |
ftubkarlsruhe |
language |
English |
topic |
ddc:550 Earth sciences info:eu-repo/classification/ddc/550 |
spellingShingle |
ddc:550 Earth sciences info:eu-repo/classification/ddc/550 Hamryszczak, Zaneta T. Pozzer, Andrea Obersteiner, Florian Bohn, Birger Steil, Benedikt Lelieveld, Jos Fischer, Horst Distribution of hydrogen peroxide over Europe during the BLUESKY aircraft campaign |
topic_facet |
ddc:550 Earth sciences info:eu-repo/classification/ddc/550 |
description |
In this work we present airborne in situ trace gas observations of hydrogen peroxide (H$_2$O$_2$) and the sum of organic hydroperoxides over Europe during the Chemistry of the Atmosphere – Field Experiments in Europe (CAFE-EU, also known as BLUESKY) aircraft campaign using a wet chemical monitoring system, the HYdrogen Peroxide and Higher Organic Peroxide (HYPHOP) monitor. The campaign took place in May–June 2020 over central and southern Europe with two additional flights dedicated to the North Atlantic flight corridor. Airborne measurements were performed on the High Altitude and LOng-range (HALO) research operating out of Oberpfaffenhofen (southern Germany). We report average mixing ratios for H$_2$O$_2$ of 0.32 ± 0.25, 0.39 ± 0.23 and 0.38 ± 0.21 ppbv in the upper and middle troposphere and the boundary layer over Europe, respectively. Vertical profiles of measured H$_2$O$_2$ reveal a significant decrease, in particular above the boundary layer, contrary to previous observations, most likely due to cloud scavenging and subsequent rainout of soluble species. In general, the expected inverted C-shaped vertical trend with maximum hydrogen peroxide mixing ratios at 3–7 km was not found during BLUESKY. This deviates from observations during previous airborne studies over Europe, i.e., 1.64 ± 0.83 ppb$_v$ during the HOOVER campaign and 1.67 ± 0.97 ppbv during UTOPIHAN-ACT II/III. Simulations with the global chemistry–transport model EMAC partly reproduce the strong effect of rainout loss on the vertical profile of H$_2$O$_2$. A sensitivity study without H$_2$O$_2$ scavenging performed using EMAC confirms the strong influence of clouds and precipitation scavenging on hydrogen peroxide concentrations. Differences between model simulations and observations are most likely due to difficulties in the simulation of wet scavenging processes due to the limited model resolution. |
format |
Article in Journal/Newspaper |
author |
Hamryszczak, Zaneta T. Pozzer, Andrea Obersteiner, Florian Bohn, Birger Steil, Benedikt Lelieveld, Jos Fischer, Horst |
author_facet |
Hamryszczak, Zaneta T. Pozzer, Andrea Obersteiner, Florian Bohn, Birger Steil, Benedikt Lelieveld, Jos Fischer, Horst |
author_sort |
Hamryszczak, Zaneta T. |
title |
Distribution of hydrogen peroxide over Europe during the BLUESKY aircraft campaign |
title_short |
Distribution of hydrogen peroxide over Europe during the BLUESKY aircraft campaign |
title_full |
Distribution of hydrogen peroxide over Europe during the BLUESKY aircraft campaign |
title_fullStr |
Distribution of hydrogen peroxide over Europe during the BLUESKY aircraft campaign |
title_full_unstemmed |
Distribution of hydrogen peroxide over Europe during the BLUESKY aircraft campaign |
title_sort |
distribution of hydrogen peroxide over europe during the bluesky aircraft campaign |
publisher |
European Geosciences Union |
publishDate |
2022 |
url |
https://publikationen.bibliothek.kit.edu/1000149792 https://publikationen.bibliothek.kit.edu/1000149792/149163418 https://doi.org/10.5445/IR/1000149792 |
long_lat |
ENVELOPE(-118.236,-118.236,56.067,56.067) |
geographic |
Bluesky |
geographic_facet |
Bluesky |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Atmospheric Chemistry and Physics, 22 (14), 9483–9497 ISSN: 1680-7316, 1680-7324 |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000828630700001 info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-22-9483-2022 info:eu-repo/semantics/altIdentifier/issn/1680-7316 info:eu-repo/semantics/altIdentifier/issn/1680-7324 https://publikationen.bibliothek.kit.edu/1000149792 https://publikationen.bibliothek.kit.edu/1000149792/149163418 https://doi.org/10.5445/IR/1000149792 |
op_rights |
https://creativecommons.org/licenses/by/4.0/deed.de info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5445/IR/100014979210.5194/acp-22-9483-2022 |
_version_ |
1768371501666402304 |