Interactive comment on “Hydroxyl Radical in/on Illuminated Polar Snow: Formation Rates, Lifetimes, and Steady-State Concentrations” by
نویسنده
چکیده
In this paper, Chen et al. use kinetic analysis of OH p-HBA formation in illuminated snow samples to infer OH photochemical formation rates and steady-state concentrations in (assumed) pristine snow taken from Arctic regions. This work is important and timely: in a rapidly changing and increasingly human-impacted Arctic environment, understanding the contributions to local atmospheric reactivity and oxidation state due to chemistry associated with "pristine" snow and firn air will give a yardstick against which to measure any changes due to human activities.
منابع مشابه
Hydroxyl Radical in/on Illuminated Polar Snow: Formation Rates, Lifetimes, and Steady-State Concentrations
While hydroxyl radical (OH) in the snowpack is likely a dominant oxidant for organic species and bromide, little is known about the kinetics or steady-state concentrations of OH on/in snow 10 and ice. Here we measure the formation rate, lifetime, and concentration of OH for illuminated polar snow samples studied in the laboratory and in the field. Laboratory studies show that OH kinetics and st...
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