SwissRad10 Hourly light availability maps at 10 m resolution over Switzerland

The SwissRad10 dataset contains light availability maps at 10 m and hourly resolution across an entire annual cycle with wall-to-wall coverage across the whole of Switzerland.
Areas below and within 25 m of forests include light availability calculated for both leaf-on and leaf-off canopy structure, and terrain only data is available across the full domain.
The variables sky-view factor and direct-beam transmissivity are both included, allowing estimation of both direct and diffuse light at the ground surface.
The dataset was calculated using the detailed synthetic hemispheric image-based ray-tracing Canopy Radiation Model (CanRad) with the latest airborne lidar and terrain surface data from the swissSURFACE3D dataset.

SwissRad10数据集（SwissRad10 dataset）包含覆盖瑞士全境、全域全覆盖的10米分辨率、逐小时尺度的完整年度光照可达性分布图。针对森林下方及周边25米范围内的区域，数据集同时提供了冠层有叶（leaf-on）与冠层无叶（leaf-off）两种结构下计算得到的光照可达性数据；而全域范围均可获取仅考虑地形因素的光照数据。数据集包含天空可视因子（sky-view factor）与直射光束透过率（direct-beam transmissivity）两项核心变量，可用于估算地表的直射光照与散射光照。本数据集基于精细化的合成半球影像光线追踪冠层辐射模型（Canopy Radiation Model, CanRad），结合瑞士全国地表三维数据集（swissSURFACE3D dataset）的最新机载激光雷达（lidar）与地形表面数据计算生成。