Interactive comment on “Simulating ozone dry deposition at a boreal forest with a multi-layer canopy deposition model” by Putian Zhou et al

This paper presents an analysis of ozone deposition to a Scots pine forest based on a 1D multi-layer chemical transport model. The study includes an implementation of a resistance scheme for ozone deposition into an existing model, simulations for a one-month period and comparisons with measurement data. The results highlight the importance of non-stomatal sinks, both within the forest canopy and at the soil interface, and the role of surface wetness in mediating these fluxes. The topic of the study is highly relevant, as it becoming increasingly evident that ozone deposition to vegetation is controlled by interplay of processes that are difficult to describe by traditional ‘bigleaf’ models. In addition, the high-quality long-term data available provide an improved opportunity for development of more advanced surface exchange models.