Weekly Reports Polarstern

The Expedition PS120 Port Stanley - Bremerhaven

The transit cruise from Port Stanley to Bremerhaven will begin on 02.06.2018 and ends on the 29.06.2019.

The cruise is primarily dedicated to the training of students and the preparation and testing of onboard equipment for the upcoming MOSAIC project. During a “floating summer school” an international group of 25 students from 23 countries will be trained in basic techniques of oceanography and remote sensing on a North-South transect from Port Stanley to Bremerhaven (South North Atlantic Training; SoNoAT). The participants will learn how to take samples, how to process them and deal with the accompanying data. The main water masses between the Atlantic and the North Sea will be characterized in terms of their hydrographic features down to a depth of approx. 500 m and more.

In preparation for the following MOSAIC expeditions sensors will be re-calibrated and configured to fit in the board systems. This should assure the functionality during the MOASIC programme, the scholar will be involved in the sensor testing. Additional to the sensors the medical equipment will be inventoried and updated during this cruise.

A further focus during the transit cruise will be physical and chemical measurements as well as detection of mircoplastics and EDNA. In addition, the students will get an introduction into the physics of the climate system, international climate negotiations and data analyses.

A three-day workshop will be held land based to prepare the scholars in application and usage of programming tools and methods.

The floating summer school is a joint project between the Alfred Wegener Institute Helmholtz-Centre for Polar- and Marine Research, the POGO Centre of Excellence, ATLANTOS and the OCEAN TRAINING PORTAL (OTP). It is funded by the Nippon Foundation / POGO Centre of Excellence and the OTP and supported by REKLIM and PORTWIMS (Portugal Twinning for innovation and excellence in marine science and Earth observation).

Polarstern is scheduled to arrive in Bremerhaven on 29.06.2019 and thus ends the expedition PS120.

PS119 - Weekly Report No. 7 | 20 – 26 May 2019

The expedition‘s stormy

[27. May 2019] 

The rapid changes in weather condition, which hit us last weekend, was exemplaric for the entire week. While were able to achieve the 450th dive of MARUM ROV QUEST (Fig. 2) on the ridge segment E2 of the East Scotia Ridge on Saturday, the storm on Sunday, which we endured in the ailee of Zavodovski Island, showed us that Antarctic winter has started.


PS119 - Weekly Report No. 6 | 13 - 19 May 2019

To the smoking volcano of Saunders Island

[20. May 2019] 

Like last week, we spent the sixth week in the southernmost area of the South Sandwich Plate, from the back-arc spreading ridge of the segments 8 and 9 in the west to the Kemp Caldera. The volcano of Kemp Caldera is part of the collision zone with the South American plate to the East. A look to our expedition logo shows symbolically the spreading ridge on the left and flowing to the right the volcanoes, fore-arc area and subduction zone.


PS119 - Weekly Report No. 5 | 6 - 12 May 2019

White smoker and yellow sulphur of the Kemp Caldera

[14. May 2019] 

On Sunday, 5th May, we arrived at the Kemp Caldera, a prominent crater of volcanic origin at the southern end of the South Sandwich volcanic arc.


PS119 - Weekly Report No. 4 | 29 April - 5 May 2019

Active volcanoes of the South Sandwich Island Arc

[06. May 2019] 

We started the new week on Monday, 29th April, with a long dive to sample smoking chimneys and vent animals in the known hydrothermal field of the segment E2-South. Here we concentrated our efforts on the active vent systems around Dog’s Head, a complex structure consisting of 4 chimneys, which are lined up nicely one after the other, fused on their bases and characterised by single black smoking orifices in 12-15m height.  


PS119 - Weekly Report No. 3 | 23 - 28 April 2019

The East Scotia Ridge – where new seafloor grows

[29. April 2019] 

Despite not neglecting station work and the associated scientific analyses over the Easter days, we were able to celebrate the Easter. At first priority stands a big thanks to the crew of RV Polarstern as they decorated the public areas and canteens to create an Easterly feeling on board.


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