1Institute of Applied Mathematics, Miuuskaya Sq. 4, 125047, Moscow, Russia
2Institute of Environmental Physics, Bremen University, O. Hahn Allee 1, 28334 Bremen, Germany
Received: 27 Jul 2012 – Published in The Cryosphere Discuss.: 01 Oct 2012
Abstract. The influence of horizontal and vertical inhomogeneity of snow surfaces on solar light reflectance is studied using the radiative transfer theory (RTT). We compared 1-D RTT and 2-D RTT and found that large errors are produced if the 1-D RTT is used for the calculation of the snow reflection function (and, therefore, also in the retrievals of the snow grain radii) in 2-D measurement geometries. Such 2-D geometries are common in the procedures for the determination of the effective snow grain radii using near-infrared photography and spectroscopy of vertical snow walls. In particular, we have considered three cases for the numerical calculations: (1) the case with no black film; (2) the case with a black film at the pit's bottom; (3) the case with a black film at the pit's bottom and also at one of the vertical snow walls.
Revised: 12 Mar 2013 – Accepted: 15 Mar 2013 – Published: 05 Apr 2013
Citation: Nikolaeva, O. V. and Kokhanovsky, A. A.: Theoretical study of solar light reflectance from vertical snow surfaces, The Cryosphere, 7, 657-666, doi:10.5194/tc-7-657-2013, 2013.