Wintertime UAV-based land surface albedo data over forested environments

This data-set contains Land Surface Albedo (LSA) data obtained via a UAV sytem with up and downlooking shortwave radiation sensors, as described in the JGR-Atmospheres paper "Effect of forest canopy structure on wintertime Land Surface Albedo: Evaluating CLM5 simulations with in-situ measurements", by Malle et al. (2021, under review). This publication must be cited when using the data.
Data was collected across a large range of forest structures and solar angles in Switzerland (Davos Laret) and in Finland (Sodankylä). For each waypoint location at each site, data includes measured LSA, incoming SWR, reflected SWR and sunlit snow-view fraction alongside zenith angle, azimuth angle and measurement time (local time). Please refer to the abovementioned article for more detailed explanation.

本数据集包含通过搭载上下视短波辐射传感器的无人机（Unmanned Aerial Vehicle, UAV）系统获取的地表反照率（Land Surface Albedo, LSA）数据，相关研究成果详见Malle等人2021年（审稿中）发表于《Journal of Geophysical Research: Atmospheres》（简称JGR-Atmospheres）的论文《森林冠层结构对冬季地表反照率的影响：利用原位观测评估CLM5模拟结果》。使用本数据集时必须引用该文献。
数据采集覆盖瑞士达沃斯拉雷（Davos Laret）与芬兰索丹屈莱（Sodankylä）的多种森林结构场景与太阳高度角条件。针对每个站点的每个航点位置，数据集包含实测地表反照率、入射短波辐射（Shortwave Radiation, SWR）、反射短波辐射、日照积雪视野占比，以及天顶角、方位角与当地时间的测量时刻。更详细的说明请参阅上述提及的论文。