Optical properties of the ice cover on Vendyurskoe lake, Russian Karelia (1995-2012)

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Abstract

Solar radiation penetrating the ice is one of the most important factors that determine the functioning of lake ecosystem in late winter. Parameterization of the attenuation of solar radiation in the snow-ice sheet is an essential tool in the study of the light regime of ice-covered lakes. The optical properties of the snow-ice sheet in Vendyurskoe lake, northwestern Russia, are investigated on the basis of long-term field observations (1995-2012). The four-layer approach (snow, white ice, slush and congelation ice) is used to study the attenuation of the downwelling planar irradiance in the snow-ice sheet. The bulk attenuation coefficients for four layers (18.8 m-1 for snow, 6 m-1 for white ice, 3.5 m-1 for slush and 2.1 m-1 for congelation ice) are calculated by the quasi-Newton method. A comparison of observed and calculated values of the irradiance beneath the ice shows that the determined coefficients adequately describe the attenuation of the downwelling irradiance by snow-ice cover.

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Zdorovennova, G., Zdorovennov, R., Palshin, N., & Terzhevik, A. (2013). Optical properties of the ice cover on Vendyurskoe lake, Russian Karelia (1995-2012). Annals of Glaciology, 54(62), 121–124. https://doi.org/10.3189/2013AoG62A179

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