Soot-doped natural snow and its albedo - results from field experiments

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http://hdl.handle.net/10138/172963

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Svensson , J , Virkkula , A , Meinander , O , Kivekäs , N , Hannula , H-R , Järvinen , O , Peltoniemi , J I , Gritsevich , M , Heikkila , A , Kontu , A , Neitola , K , Brus , D , Dagsson-Waldhauserova , P , Anttila , K , Vehkamäki , M , Hienola , A , De Leeuw , G & Lihavainen , H 2016 , ' Soot-doped natural snow and its albedo - results from field experiments ' , Boreal Environment Research , vol. 21 , no. 5-6 , pp. 481-503 .

Title: Soot-doped natural snow and its albedo - results from field experiments
Author: Svensson, Jonas; Virkkula, Aki; Meinander, Outi; Kivekäs, Niku; Hannula, Henna-Reetta; Järvinen, Onni; Peltoniemi, Jouni I.; Gritsevich, Maria; Heikkila, Anu; Kontu, Anna; Neitola, Kimmo; Brus, David; Dagsson-Waldhauserova, Pavla; Anttila, Kati; Vehkamäki, Marko; Hienola, Anca; De Leeuw, Gerrit; Lihavainen, Heikki
Contributor: University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Chemistry
University of Helsinki, Department of Physics
Date: 2016
Language: eng
Number of pages: 23
Belongs to series: Boreal Environment Research
ISSN: 1239-6095
URI: http://hdl.handle.net/10138/172963
Abstract: Soot has a pronounced effect on the cryosphere and experiments are still needed to reduce the associated uncertainties. This work presents a series of experiments to address this issue, with soot being deposited onto a natural snow surface after which the albedo changes were monitored. The albedo reduction was the most pronounced for the snow with higher soot content, and it was observed immediately following soot deposition. Compared with a previous laboratory study the effects of soot on the snow were not as prominent in outdoor conditions. During snowmelt, about 50% of the originally deposited soot particles were observed to remain at the snow surface. More detailed experiments are however needed to better explain soot's effect on snow and to better quantify this effect. Our albedo versus soot parameterization agreed relatively well with previously published relationships.
Subject: LIGHT-ABSORBING IMPURITIES
BLACK-CARBON
ELEMENTAL CARBON
SPECTRAL ALBEDO
ICE
RAINWATER
AEROSOLS
GLACIER
MELT
114 Physical sciences
1172 Environmental sciences
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