Weekly Reports Polarstern

The Expedition PS102 from Bremerhaven to Cape Town

The transit cruise from Bremerhaven via Las Palmas to Cape Town (South Africa) will begin on 12.11.2016 and is split into two cruise legs: Bremerhaven to Las Palmas (PS102.1, Chief Scientist K. Wiltshire) and Las Palmas to Cape Town (PS102.2, Chief Scientist K. Wiltshire). Both legs are dedicated to the training of students. During a “floating summer school” an international group of 25 students will be trained in basic techniques of oceanography and remote sensing on a North-South transect from Bremerhaven to Cape Town (North South Atlantic Training; NoSoAT). The participants will learn how to take samples, how to process them and deal with the accompanying data. The main water masses between the North Sea and Cape Town will be characterized in terms of their hydrographic features down to a depth of approx. 500 m. A further focus during the transit cruise will be physical and chemical measurements for energy and material exchange between ocean and atmosphere (OCEANET). In addition, the students will get an introduction into the physics of the climate system, international climate negotiations and the law of the sea and its impacts on marine research activities. The floating summer school is a joint project between the Alfred Wegener Institute, the POGO Centre of Excellence and the Irish Strategic Marine Alliance for Research & Training (SMART) program. It is funded by the Nippon Foundation / POGO Centre of Excellence andsupported by REKLIM.

During the transit cruise from Bremerhaven to Las Palmas hydro acoustic measuring units are tested and calibrated. Polarstern is scheduled to arrive in Cape Town on 12.12.2016 and thus ends the expedition PS102.

PS102 - Weekly Report No. 2 | 20 - 27 November 2016

Working near the Equator

[29. November 2016] 

In the past week we have been travelling from 30° N towards the Equator and it has been getting steadily warmer with each mile traversed.

PS102 - Weekly Report No. 1 | 12 - 20 November 2016

Bound for Cape Town

[25. November 2016] 

When one spends hours in the winch room deploying rosette and CTD to 4900 m depth.  one has a lot of time to deliberate the passing of the first expedition week at sea, even though one is concentrating hard with the winch driver making sure the sampling bottle releases are at the right depths.

PS101 – Weekly Report No. 5 | 16. October - 23. October 2016

Homebound through the ice.

[24. October 2016] 

During the sixth week of expedition PS101 we are making our way home through the ice. A FRAM “superbuoy” station needs to be rescued before we leave the ice.

PS101 - Weekly Report No. 5 | 09. October - 16. October 2016

Discovering the ice-covered Arctic deep-sea: Of robots, minerals and microbes

[19. October 2016] 

The fifth week of expedition PS101 has made significant progress in the study of hot vents and seamounts under the ice-covered seas. The under ice robot NUI samples the seafloor.

PS101 – Weekly Report No. 4 | 2 October - 9 October 2016

New tools and concepts to observe the changing Arctic Ocean

Fig. 1: Newly grown sea ice (greyish areas) forming between old floes, which survived the previous summer melt.
[11. October 2016] 

Expedition PS101 tests, deploys and recovers several new types of instrumentation for the observation of ice, ocean and seafloor processes in the Central Arctic. A main aim is to observe and analyse the changes in the sea ice cover, and its causes and consequences for ocean and life.