Weekly Reports Polarstern

The Expedition PS119 Punta Arenas - Port Stanley

During R/V POLARSTERN cruise PS119 we are planning to investigate hydrothermal vents and potential cold seeps at the Sandwich micro-plate using the remotely operated vehicle (ROV) MARUM-QUEST. The planned research is based on the discovery of unique hydrothermal vent ecosystems at the back-arc spreading East Scotia Ridge as well as at submarine volcanoes of the South Sandwich Island Arc. The overarching theme of the project is to study in a comparative way the geological settings of geofuel emissions at the seafloor with their associated ecological hot spots. In a cross-disciplinary approach, we intend to study aspects of geology, geochemistry, microbiology, symbiont-host relationships as well as eukaryotic biogeography in an international research consortium combining experts in their respective field of sciences. Addition investigations of the South Sandwich volcanoes as well as the distribution of wales are further topics of the research cruise PS119.

PS100 - Weekly Report No. 7 | 29 August - 4 September 2016

The expedition comes to an end

[06. September 2016] 

Today we have completed our research programme at the Knipovich Ridge south of Fram Strait. We are now on the transit toward Tromsø, where we will arrive in the morning of 6 September.

PS100 - Weekly Report No. 6 | 22 - 28 August 2016

At the 79° Glacier

[29. August 2016] 

Yesterday we finished our investigations in the close vicinity of the 79°N glacier. Now R/V Polarstern is exploring the southern end of Westwind Trough on the inner shelf. We had already paid a visit to the outer part of this depression earlier in the expedition.

PS100 - Weekly Report No. 5 | 15 - 21 August 2016

Working in Norske Trog

[23. August 2016] 

Meanwhile R/V Polarstern has worked her way toward the inner shelf of Northeast Greenland. We have reached the transition from Norske Trough to Westwind Trough, which is where the 79°N glacier meets the sea. In this region, sea ice often prevails the whole year round.

PS100 - Weekly Report No. 4 | 8 - 14 August 2016

Back at the Greenland Ice Shelf

[16. August 2016] 

In sunny weather and light sea ice conditions we find ourselves once again on the shelf of Greenland  –this time in Norske Trough. In the beginning of the week we were able to accomplish most of the oceanographic, biological and biogeochemical workload planned along the zonal transect through central Fram Strait along 78°50’N. Subsequently we added to the mooring array deployed along the Greenwich Meridian in the second week of the expedition the southernmost mooring at 78°10’N.

PS100 - Weekly Report No. 3 | 1 - 7 August 2016

Questions about climate change

[08. August 2016] 

After having reached the northernmost point of the expedition at the end of last week, we moved southeastward across the East Greenland Current toward the continental shelf of Northeast Greenland, that we reached at the outlet of Westwind Trough.