12 Cruise Report, RV ATAIR, Cruise 067I033-1, Bremerhaven – Thybor?n – Aberdeen, 23 Jul – 15 Aug 2024 raw data was done using the BSH software Seasave_Start that internally calls the SBE-soft- ware SeaSave, version 7.26.7.121, and the data conversion software (from binary into ASCII) SBEDataProcessing, version 7.26.7.129. Device Serial Number Calibration Date CTD main housing with pressure sensor, SBE9plus 09P56228-1005, S6 20 Mar 2019 deckunit, SBE11plus 11P29178-0620, N1 --- temperature sensor 1, SBE3T, part of TC1 5254 29 Jun 2023 temperature sensor 2, SBE3T, part of TC2 5278 29 Jun 2023 conductivity sensor 1, SBE4C, part of TC1 3691 29 Jun 2023 conductivity sensor 2, SBE4C, part of TC2 3694 29 Jun 2023 oxygen sensor, SBE43 0153 16 Apr 2022 pump 1, SBE5 10061 --- pump 2, SBE5 10062 --- dual-wavelength sensor, WET Labs ECO-AFL/FL, fluorescence 4738 15 Jan 2018 dual-wavelength sensor, WET Labs ECO, turbidity 4738 15 Jan 2018 supplementary termperature sensor installed at the height of the Niskin bottles, SBE35 078 04 Jul 2016 altimeter, Valeport VA500 81276 11 Dec 2013 carousel water sampler with 12 positions for Niskin bottles, SBE32 3256228-0814, K7 --- Table 5.1. Overview on CTD-related sensors or water sampler devices used during cruise 067I033-1. The CTD sensor package consisted of a primary and a secondary pair of temperature (T) and conductivity (C) sensors that were each connected to a particular pump and the main CTD housing carrying a pressure sensor. A through-flow oxygen sensor was connected to the pri- mary T/C sensor pair. In addition, a dual-wavelength sensor of type WetlabECO delivering simultaneously fluorescence and turbidity data was attached to and powered by the CTD sys- tem. The distance to the sea bottom was estimated from an altimeter of type Valeport VA500. Inlets of the two T/C sensor pairs were soaked in distilled water before the start and after the