RAMSES radiometer are stand-alone and highly integrated hyperspectral radiometer for the UV, VIS and/or UV/VIS spectral range. On RV Heincke 1 Ramses-ACC-VIS irradiance sensor is installed on the foremast to measure downwelling solar irradiance. On the portside as well as on the starboard side of the foremast two Ramses-ARC Radiance sensors are installed, respectively. One of the Ramses-ARC sensors on each side is looking downwards the water surface while the other one looks upwards towards the sky. | 
