Short summary of individual campaign in the MBL LP-DOAS: HaloCaVe 2010

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Presentation transcript:

Short summary of individual campaign in the MBL LP-DOAS: HaloCaVe 2010 Observations of Reactive Halogen Species in the Marine Boundary Layer during ship cruises in the Pacific and Atlantic Johannes Lampel, Denis Pöhler, Udo Frieß, Jens Tschritter, Katja Großmann, Martin Horbanski, and Ulrich Platt Short summary of individual campaign in the MBL LP-DOAS: HaloCaVe 2010 CE-DOAS and MAX-DOAS: M91, Peru Short summary of observations of BrO in the MBL during several ship cruises

M91: MAX-DOAS and CE-DOAS

Reanalysis LP-DOAS HaloCaVe 2010 Cape Verde Highly variable BrO concentrations No IO > 0.5ppt Indications of OClO

MAXDOAS halogen observations at Antarctic station of Belgrano (78ºS)

MAXDOAS halogen observations at Antarctic station of Belgrano (78ºS) BrO and NO2 total column Tropospheric BrO Tropospheric IO

MAXDOAS halogen observations at Antarctic station of Belgrano (78ºS) Poster nº 30 Bromine enhancements Associated to ODE (b) With no ODE associated Trajectories coming from Weddell Sea - severe storm and blowing snow (events 2013) - wind under 5m/s (event 2014) Trajectories coming from East along the coast, with 24h residence over Weddell Sea prior reaching the station

Reactive Halogen Species in the Marine Boundary Layer: A global picture observed from ship cruises and coastal measurements Denis Pöhler, Johannes Lampel, Udo Frieß, Jens Tschritter, Katja Großmann, Martin Horbanski, Stefan Schmitt and Ulrich Platt Institute of Environmental Physics, University of Heidelberg Iodine Oxide (IO)

Bromine Oxide (BrO)

Formaldehyde(HCHO)