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Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: How forward‐scattering snow and terrain change the Alpine radiation balance with application to solar panels
Authors: Rütte, F.
Kahl, A.
Rohrer, J.
Lehning, M.
et. al: No
DOI: 10.1029/2020JD034333
Published in: Journal of Geophysical Research: Atmospheres
Volume(Issue): 126
Issue: 15
Page(s): e2020JD034333
Issue Date: 2021
Publisher / Ed. Institution: Wiley
ISSN: 2169-897X
Language: English
Subjects: Winterstrom; Photovoltaik; Alpen
Subject (DDC): 621.3: Electrical, communications, control engineering
Abstract: Rough terrain in mid- and high latitudes is often covered with highly reflective snow, giving rise to a very complex transfer of incident sunlight. In order to simplify the radiative transfer in weather and climate models, snow is generally treated as an isotropically reflecting material. We develop a new model of radiative transfer over mountainous terrain, which considers for the first time the forward scattering properties of snow. Combining ground-measured meteorological data and high resolution digital elevation models, we show that the forward scattering peak of snow leads to a strong local redistribution of incident terrain reflected radiation. In particular, the effect of multiple terrain reflections is enhanced. While local effects are large, area-wide albedo is only marginally decreased. In addition, we show that solar panels on snowy ground can clearly benefit from forward scattering, helping to maximize winter electricity production.
Fulltext version: Published version
License (according to publishing contract): CC BY 4.0: Attribution 4.0 International
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Published as part of the ZHAW project: Alpenstrom: Winterstrom-Optimierte PV-Anlagen in den Alpen
Appears in collections:Publikationen Life Sciences und Facility Management

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