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.

PS113 - Weekly Report No. 5| 4th -10th June 2018

The Final Strai(gh)t

[11. June 2018] 

On 5th June after leaving Las Palmas on Gran Canaria we again reduced our speed for 5 hours so that we could tow the Triaxus/topAWI for one final test.  Thereupon followed a final comparison station with CTD and the optical measurements package. Thereafter, we were supposed to head to Bremerhaven with all haste and without further ado.


PS113 - Weekly Report No. 4 | 28th May - 3rd June 2018

The Tropical North Atlantic: Cold in the Water, Dust in the Sky

[04. June 2018] 

The whole week long we sailed in the North-east Trade Wind zone under skies with only a few clouds, but with strong head-winds for Polarstern. By crossing the northern tropic, the Tropic of Cancer, at 23° 26’ 05” North during the night of  31st May to 1st June we have left the Tropics and are again in the Subtropics. Although we have been moving through the Tropics and Subtropics, the water and air surrounding us with temperatures of around 20°C have been relatively cool, 10° colder than the daytime temperatures in much of Germany.  That...


PS113 - Weekly Report No. 3 | 21st - 27th May 2018

Cruising through the Blue

[28. May 2018] 

After entering the Tropics in the Southeast Trade Wind region and sailing under cloudless skies, the second half of the week was largely cloudy with frequent rainfall. We had arrived in the Inter-Tropical Convergence Zone, in which the air masses transported by the Southeast Trade Winds and their northern hemispheric counterpart, the Northeast Trade Winds, rise up and produce thick clouds reaching high into the atmosphere.


PS113 - Weekly Report No. 2 | 14th-20th May (Whit Sunday) 2018

Whitsun Excursion with a Towed System

[23. May 2018] 

Since crossing the Tropic of Capricorn at 23° 26’ 05” South on Thursday this week travelling north we find ourselves, according to the astronomical definition, in the Tropics. The weather is what you would expect; water and air temperature lie between 26 and 27°C. Since we have also arrived in the zone of the SE Trade Winds there is a stiff and steady breeze and by day the sun shines from a sky with few clouds into deep blue ocean water.


PS113 - Weekly report No. 1 | 7 – 13 May 2018

Leaving Punta Arenas

[14. May 2018] 

On our arrival on 5th and 6th May the weather in Punta Arenas in Chile showed an unexpectedly pleasant side with scattered clouds, temperature just under 10°C and hardly any wind – unexpected, because here in the Southern Hemisphere it is now autumn and the climate at the southern extremity of Chile is harsh anyway. On 7th May the cruise participants were brought on board the Polarstern at anchor offshore by a harbour launch.


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