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Hydrogen peroxide in the marine boundary layer over the South Atlantic during the OOMPH cruise in March 2007

Fischer, Horst and Pozzer, A. and Schmitt, T. and Jöckel, Patrick and Klippel, T. and Taraborrelli, D. and Lelieveld, Jos (2015) Hydrogen peroxide in the marine boundary layer over the South Atlantic during the OOMPH cruise in March 2007. Atmospheric Chemistry and Physics, 15 (12), pp. 6971-6980. Copernicus Publications. DOI: [10.5194/acp-15-6971-2015] ISSN 1680-7316

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Official URL: http://www.atmos-chem-phys.net/15/6971/2015/

Abstract

In the OOMPH (Ocean Organics Modifying Particles in both Hemispheres) project a ship measurement cruise took place in the late austral summer from 01 to 23 March 2007. The French research vessel Marion Dufresne sailed from Punta Arenas, Chile (70.85�W, 53.12� S), to Réunion island (55.36� E, 21.06� S) across the South Atlantic Ocean. In situ measurements of hydrogen peroxide, methylhydroperoxide and ozone were performed and are compared to simulations with the atmospheric chemistry global circulation model EMAC (ECHAM/MESSy Atmospheric Chemistry). The model generally reproduces the measured trace gas levels, but it underestimates hydrogen peroxide mixing ratios at high wind speeds, indicating too-strong dry deposition to the ocean surface. An interesting feature during the cruise is a strong increase of hydrogen peroxide, methylhydroperoxide and ozone shortly after midnight off the west coast of Africa due to an increase in the boundary layer height, leading to downward transport from the free troposphere, which is qualitatively reproduced by the model.

Item URL in elib:https://elib.dlr.de/96953/
Document Type:Article
Title:Hydrogen peroxide in the marine boundary layer over the South Atlantic during the OOMPH cruise in March 2007
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fischer, HorstMPI Chemie, MainzUNSPECIFIED
Pozzer, A.MPI Chemie, MainzUNSPECIFIED
Schmitt, T.MPI Chemie, MainzUNSPECIFIED
Jöckel, PatrickDLR, IPAUNSPECIFIED
Klippel, T.MPI Chemie, MainzUNSPECIFIED
Taraborrelli, D.MPI Chemie, MainzUNSPECIFIED
Lelieveld, JosMPI Chemie, MainzUNSPECIFIED
Date:2015
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:15
DOI :[10.5194/acp-15-6971-2015]
Page Range:pp. 6971-6980
Publisher:Copernicus Publications
ISSN:1680-7316
Status:Published
Keywords:hydrogen peroxide, ship campaign, Modular Earth Submodel System, MESSy, EMAC, marine boundary layer, South Atlantic
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Jöckel, Dr. Patrick
Deposited On:09 Jul 2015 13:11
Last Modified:02 May 2019 14:04

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