Theoretical study of solar light reflectance from vertical snow surfaces 1Institute of Applied Mathematics, Miuuskaya Sq. 4, 125047, Moscow, Russia
05 Apr 2013
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
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.