Today Karolina and others mounted the WhiteRef loaned from FEM (foreground) and our SIF system (background) to start jointly measuring hyperspectral reflectance and passive (sun-induced) fluorescence at Neustift within the frame of her Marie Sklodowska-Curie project COSIF. These measurements will be accompanied within COS/CO2 eddy covariance flux measurements and active chlorophyll fluorescence by means of a moniPAM.