Articles | Volume 24, issue 10
https://doi.org/10.5194/acp-24-5863-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-24-5863-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Surface snow bromide and nitrate at Eureka, Canada, in early spring and implications for polar boundary layer chemistry
British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
Kimberly Strong
Department of Physics, University of Toronto, Toronto, ON, Canada
Alison S. Criscitiello
Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada
Marta Santos-Garcia
British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
now at: School of Geosciences, University of Edinburgh, Edinburgh, UK
Kristof Bognar
Department of Physics, University of Toronto, Toronto, ON, Canada
now at: 3v Geomatics Inc., Vancouver, BC, Canada
Xiaoyi Zhao
Air Quality Research Division, Environment and Climate Change Canada, Toronto, ON, Canada
Pierre Fogal
Department of Physics, University of Toronto, Toronto, ON, Canada
Kaley A. Walker
Department of Physics, University of Toronto, Toronto, ON, Canada
Sara M. Morris
NOAA Earth System Research Laboratories, Physical Sciences Laboratory, Boulder, CO, USA
Peter Effertz
Cooperative Institute for Research in Environmental Science – CU Boulder, Boulder, CO, USA
NOAA Earth System Research Laboratories, Global Monitoring Laboratory, Boulder, CO, USA
Data sets
Snow chemical compositions, salinity, surface ozone, BrO and meteorology data at Eureka, Canada in spring of 2018/19 (Version 1.0) Xin Yang and Kimberly Strong https://doi.org/10.5285/5b75a1dc-6f24-43bc-b93a-c1dcf633f12a
Short summary
This study uses snow samples collected from a Canadian high Arctic site, Eureka, to demonstrate that surface snow in early spring is a net sink of atmospheric bromine and nitrogen. Surface snow bromide and nitrate are significantly correlated, indicating the oxidation of reactive nitrogen is accelerated by reactive bromine. In addition, we show evidence that snow photochemical release of reactive bromine is very weak, and its emission flux is much smaller than the deposition flux of bromide.
This study uses snow samples collected from a Canadian high Arctic site, Eureka, to demonstrate...
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