Biogenic halocarbons from the Peruvian upwelling region as tropospheric halogen source

Hepach, Helmke; Quack, Birgit; Tegtmeier, Susann; Engel, Anja; Bracher, Astrid; Fuhlbrügge, Steffen; Galgani, Luisa; Atlas, Elliot L.; Lampel, Johannes; Frieß, Udo; Krüger, Kirstin

doi:https://doi.org/10.5194/acp-16-12219-2016

Articles | Volume 16, issue 18

Atmos. Chem. Phys., 16, 12219–12237, 2016

https://doi.org/10.5194/acp-16-12219-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Biogeochemical processes, tropospheric chemistry and interactions...

Atmos. Chem. Phys., 16, 12219–12237, 2016

https://doi.org/10.5194/acp-16-12219-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 18

Research article 29 Sep 2016

Research article | 29 Sep 2016

Biogenic halocarbons from the Peruvian upwelling region as tropospheric halogen source

Helmke Hepach et al.

Data sets

Biogenic halocarbons from the Peruvian upwelling region during METEOR cruise M91 Helmke Hepach, Birgit Quack, Susann Tegtmeier, Anja Engel, Astrid Bracher, Steffen Fuhlbrügge, Luisa Galgani, Elliot Atlas, Johannes Lampel, Udo Frieß, and Kirstin Krüger https://doi.org/10.1594/PANGAEA.864787

Short summary

We present surface seawater measurements of bromo- and iodocarbons, which are involved in numerous atmospheric processes such as tropospheric and stratospheric ozone chemistry, from the highly productive Peruvian upwelling. By combining trace gas measurements, characterization of organic matter and phytoplankton species, and tropospheric modelling, we show that large amounts of iodocarbons produced from the pool of organic matter may contribute strongly to local tropospheric iodine loading.