TY - JOUR AU - Florent Domine PY - 2017// TI - Can We Monitor Snow Properties on Sea Ice to Investigate Its Role in Tropospheric Ozone Depletion? KW - Arctic bromine ozone snow troposphere N2 - In the lower troposphere over the Arctic Ocean, ozone is often destroyed in spring by chemical chain reactions involving the reactive bromine species Br and BrO. The role of surface snow in generating reactive bromine has been suspected, but many details of the processes not understood. Using unique data such as BrO concentrations from instruments on buoys, Burd et al. (2017, https://doi.org/10.1002/2017JD026906) observed that the snowmelt onset date often coincides with the end of the reactive bromine season. They proposed that the decrease in snow-specific surface area and/or the occurrence of liquid water in snow induced by melting dramatically slows the rate of surface reactions generating bromine, indicating that the physical state of the snow is critical for bromine generation. Their suggestion is discussed, and a method to test it using novel instrumentation recently available is proposed. SN - 2169-8996 SN - 2169-8996 UR - http://dx.doi.org/10.1002/2017JD027676 N1 - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=7464), last updated on Wed, 03 Jul 2024 21:39:13 +0200 ID - FlorentDomine2017 ER -