Interactive comment on “The potential importance of frost flowers, recycling on snow, and open leads for Ozone Depletion Events” by M. Piot and R. von Glasow

Interactive comment on “The potential importance of frost flowers, recycling on snow, and open leads for Ozone Depletion Events” by M. Piot and R. von Glasow

This paper basically follows the title, i.e. it investigates the impact of frost flowers (FF) as an Brsource, recycling of bromine on snow, and the impacts of open leads in the initiation and development of ozone depletion events in the Arctic marine boundary layer. They do this using a sophisticated 1D model with chemistry, microphysics and cloud formation used in a Lagrangian mode and by vary...

The processes influencing ODEs

The potential importance of frost flowers, recycling on snow, and open leads for Ozone Depletion Events M. Piot and R. von Glasow Institute of Environmental Physics, University of Heidelberg, Germany now at: School of Environmental Sciences, University of East Anglia, Norwich, UK Received: 5 March 2007 – Accepted: 19 March 2007 – Published: 2 April 2007 Correspondence to: M. Piot (matthias.piot...

Technical notes: Kinetic data for MISTRA The Potential Importance of Frost Flowers, Recycling on Snow, and Open Leads for Ozone Depletion Events

The potential importance of frost flowers, recycling on snow, and open leads for Ozone Depletion Events

We present model studies with the one-dimensional model MISTRA to investigate the potential role of frost flowers, recycling on snow, and open leads in the depletion of tropospheric ozone in the Arctic spring. In our model, we assumed frost flower aerosols to be the major source of bromine. We show that a major ozone depletion event can be satisfactorily reproduced only if the recycling on snow...

First-year sea-ice contact predicts bromine monoxide (BrO) levels at Barrow, Alaska better than potential frost flower contact

Reactive halogens are responsible for boundarylayer ozone depletion and mercury deposition in Polar Regions during springtime. To investigate the source of reactive halogens in the air arriving at Barrow, Alaska, we measured BrO, an indicator of reactive halogen chemistry, and correlated its abundance with airmass histories derived from meteorological back trajectories and remotely sensed sea i...