Weekly Reports Polarstern
The Expedition PS116 Bremerhaven - Las Palmas - Cape Town
PS116 is the first leg of the Antarctic season 2018/19. Polarstern will leave its port of registry, Bremerhaven, on 10 November 2018 and arrive in Cape Town, South Africa, on 11 December 2018. An intermediate port call will take place o 18 November 2018 in Las Palmas, Canary Islands. Here, the majority of the scientific crew will leave the ship. In addition, six more colleagues will join the cruise. Polarstern will remain in the port of Las Palmas for three days in order to carry out 3D photo and Laser imaging of the ship’s interior. Ship time will be allocated for calibration of the echosounding systems by means of a sound velocity profiler and deployment of the underway-CTD (section Bremerhaven – Las Palmas). After leaving Las Palmas, a combined launch and recovery system (LARS) and depressor system will be tested. Furthermore, five floats will be deployed on the journey to Cape Town.
Scientific activities during PS116 comprise three different field of activities: training of early career scientists at the echosounding system of Polarstern (Leg Bremerhaven – Las Palmas), scientific en-route measurements and sampling, and activities and maintenance of logistics and IT department.
In detail, the scientific activities during PS116 will consist of:
POLMAR-TRAIN: Education and training of Master students of the University of Bremen, Department of Geosciences, and doctoral candidates from AWI, in geophysical methods at the echosounding systems (multibeam echosounder Atlas Hydrosweep DS3 and sediment echosounder Parasound P70)
Plankton genomics: Determination of plankton communities along a longitudinal gradient across the Atlantic Ocean by means of taxonomy and DNA-metabarcoding
OCEANET: Atmospheric measurements (physical parametres, aerosols) by means of remote sensing and LIDAR technique. Validation of ESA satellite Aeolus by ground-comparison profiles, ship-track permitting.
COSMIC-RAYS: Determination of cosmic rays along a longitudinal gradient across the Atlantic Ocean
NISAAA: Determination of the isotopic composition of nitrogen in ammonium and ammonia over the Atlantic Ocean
Testing of a depressor system
Identification of working processes in view of the development of a comprehensive safety concept for scientific work on board
Installation of software and hardware components in preparation for the drift experiment MOSAiC