This dataset contains the hydrographic bottle data collected with the ship based CTD rosette during the cruise PS124 - COSMUS (Continental Shelf Multidisciplinary Flux Study). The CTD is an SBE911plus with 24 bottles, 12 liters each. The CTD/Rosette was equipped with duplicate sensors for temperature, salinity, and oxygen, and one sensor each for pressure, substance fluorescence Chl. a, and beam transmission. An altimeter was mounted to monitor the distance to the seafloor. The CTD profile data, the cruise report as well as publications using this data are linked below.