期刊
CRYOSPHERE
卷 8, 期 3, 页码 991-995出版社
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/tc-8-991-2014
关键词
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资金
- Academy of Finland (A4-project)
- Nordic Center of Excellence (NCoE)
- EU Life+ project Mitigation of Arctic warming by controlling European black carbon emissions, MACEB [LIFE09 ENV/FI/000572]
- Nordic Top Research Initiative Cryosphere-atmosphere interactions in a changing Arctic climate (CRAICC)
Climatic effects of black carbon (BC) deposition on snow have been proposed to result from reduced snow albedo and increased melt due to light-absorbing particles. In this study, we hypothesize that BC may decrease the liquid-water retention capacity of melting snow, and present our first data, where both the snow density and elemental carbon content were measured. In our experiments, artificially added light-absorbing impurities decreased the density of seasonally melting natural snow. No relationship was found in case of natural non-melting snow. We also suggest three possible processes that might lead to lower snow density.
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