An Unmanned Aerial System (UAS) for concurrent measurements of solar-induced chlorophyll fluorescence and hyperspectral reflectance toward improving crop monitoring

•A novel unmanned aerial system with bi-hemispherical spectral acquisition.•Simultaneous solar-induced chlorophyll fluorescence and hyperspectral reflectance.•Emulates and correlates well with a tower system, enabling synergistic application.•Characterizes seasonal and diurnal dynamics of crop photosynthetic activity.