Measurements and Modeling of Optical-Equivalent Snow Grain Sizes under Arctic Low-Sun Conditions. - Evelyn Jäkel; Tim Carlsen; Andre Ehrlich; Manfred Wendisch; Michael Schäfer; Sophie Rosenburg; Konstantina Nakoudi; Marco Zanatta; Gerit Birnbaum; Veit Helm; Andreas Herber; Larysa Istomina; et al. (Remote. Sens., 2021)