FS Polarstern PS133_2 (GApr17)
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FS Polarstern (06AQ) |
| Cruise identifier | PS133_2 (GApr17) |
| Cruise period | 2022-11-19 — 2022-12-19 |
| Status | Completed |
| Port of departure | Punta Arenas, Chile |
| Port of return | Cape Town, South Africa |
| Purpose | Research |
| Objectives | The main aim of expedition PS133/2 'Island Impact' on board Polarstern is to understand the sources and transport pathways of iron (Fe), other nutrients (both macronutrients and trace elements/metals) and carbon compounds into South Georgia Island shelf waters and further downstream in the Southern Antarctic Circumpolar Current (ACC). We will, therefore, investigate the main Island-derived (shelf) sources of Fe, nutrients and other trace elements including the impact of injection of these compounds by methane bubble ebullition and groundwater seepage. Seeps, groundwater, runoff and sediments may all play a role. Work also includes the study of how methane seepage controls benthic faunal communities as well as material turnover and element fluxes. We further investigate how this local island-derived Fe and other potential Fe sources contribute to the downstream biogeochemistry and ecosystem structure in the Atlantic sector of the Southern Ocean. |
| Chief scientist | Sabine Kasten (Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research) |
| Project | GEOTRACES -Trace elements and their isotopes in the water column |
| Cruise report |  (24.18 MB) |
| Ocean/sea areas | |
| General | South West Atlantic Ocean (limit 20W) Southern Ocean |
| Specific | South Georgia |
| Track charts | (0.42 MB) |
| Data held at BODC | |
| Discrete samples | |
| 28 CTD frame plus rosette sampler | |
| 5 Stand-alone pumps | |
| 9 |
