Cruise Report, RV ATAIR, Cruise 067I033-1, Bremerhaven – Thybor?n – Aberdeen, 23 Jul – 15 Aug 2024 3
Table of Contents
1. Summary ........................................................................................................................ 4
2. Participants ..................................................................................................................... 5
3. Purpose of the Cruise & Research Objectives ................................................................ 6
4. Narrative of the Cruise .................................................................................................... 9
5. Scientific Tools & Methods ............................................................................................ 11
5.1 Overview .............................................................................................................. 11
5.2 CTD Sensor Unit & Water Sampler Setup ............................................................ 11
5.3 Water Sampling with respect to Salinity ................................................................ 14
5.4 Water Sampling with respect to Density ............................................................... 14
5.5 Near-Realtime Processing of CTD Data ............................................................... 15
5.6 Post-Cruise Processing of CTD Data ................................................................... 16
5.7 Secchi Disc, Chlorophyll-a & Phytoplankton Sampling ......................................... 21
5.8 Water Sampling with respect to Dissolved Inorganic Carbon & Alkalinity .............. 25
5.9 Water sampling with respect to Trace Metal, Mercury, Nutrient & Lead Analysis .. 25
5.10 Water sampling with respect to Microplastics ....................................................... 26
5.11 Water sampling with respect to Tritium ................................................................. 27
6. Oceanographic Conditions in Summer 2024 ................................................................. 29
7. Underway Measurements ............................................................................................. 36
7.1 Ship’s Meteorological Station ............................................................................... 36
7.2 Thermosalinograph & Fluororescence/Turbidity ................................................... 38
7.3 Perfomance of the Vessel-Mounted Acoustic Doppler Current Profiler ................. 44
7.4 Deployments of Surface Drifters ........................................................................... 47
8. Data Availability & Sample Storage............................................................................... 51
9. References ................................................................................................................... 53
10. Acknowledgments .......................................................................................................... 54
11. Station List ..................................................................................................................... 55
