Title of dataset: Equivalent black carbon aerosol measured over the Southern Ocean in the austral summer of 2016/2017, during the Antarctic Circumnavigation Expedition. Data files: ACESPACE_equivalent_black_carbon_aerosol.csv File header date_time [UTC]: Date and time of the end of each five-minute time interval in the ISO 8601 format YYYY-MM-DDThh:mm:ss+00:00 [UTC] latitude [degN]: Average latitude of the ship on which the measurements took place, during the five-minute time interval [decimal degrees North] longitude [degE]: Average longitude of the ship on which the measurements took place, during the five-minute time interval [decimal degrees East] equivalent_black_carbon [ng/m^3]: Equivalent black carbon (eBC) averaged over five-minute intervals [nano grams per cubic metre] NaN NaN values denote missing values because of e.g., ship exhaust contamination, maintenance, instrument failure or signal noise levels exceeding 200 ng/m^3.