Articles | Volume 18, issue 5
https://doi.org/10.5194/acp-18-3485-2018
https://doi.org/10.5194/acp-18-3485-2018
Research article
 | 
09 Mar 2018
Research article |  | 09 Mar 2018

Temporally delineated sources of major chemical species in high Arctic snow

Katrina M. Macdonald, Sangeeta Sharma, Desiree Toom, Alina Chivulescu, Andrew Platt, Mike Elsasser, Lin Huang, Richard Leaitch, Nathan Chellman, Joseph R. McConnell, Heiko Bozem, Daniel Kunkel, Ying Duan Lei, Cheol-Heon Jeong, Jonathan P. D. Abbatt, and Greg J. Evans

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Cited articles

AMAP: Acidifying pollutants, Arctic haze, and acidification in the Arctic, Arctic Monitoring and Assessment Programme, Oslo, Norway, 2006.
AMAP: Black carbon and ozone as Arctic climate forcers, Arctic Monitoring and Assessment Programme, Oslo, Norway, 2015.
AMAP: Snow, water, ice and permafrost in the Arctic (SWIPA), Arctic Monitoring and Assessment Programme, Oslo, Norway, 2017.
Andreae, M. O. and Merlet. P.: Emission of trace gases and aerosols from biomass burning, Global Biogeochem. Cy., 15, 955–966, https://doi.org/10.1029/2000GB001382, 2001.
Barrett, T. E., Robinson, E. M., Usenko, S., and Sheesley, R. J.: Source contributions to wintertime elemental and organic carbon in the western Arctic based on radiocarbon and tracer apportionment, Environ. Sci. Technol., 49, 11631–11639, https://doi.org/10.1021/acs.est.5b03081, 2015.
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Short summary
The sources of key contaminants in Arctic snow may be an important factor in understanding the rapid climate changes observed in the Arctic. Fresh snow samples collected frequently through the winter season were analyzed for major constituents. Temporally refined source apportionment via positive matrix factorization in conjunction with FLEXPART suggested potential source characteristics and locations. The identity of these sources and their relative contribution to key analytes is discussed.
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