Weekly Reports Polarstern

The Expedition PS122/1A - PS122/6 - MOSAIC

Expedition PS122 - MOSAIC

Dear reader of the Polarstern weekly reports,

In this place you are used to find the Weekly Reports from the Polarstern Expeditions.

During the MOSAIC Expedition there will be no weekly reports, but you may keep yourself informed on the Polarstern blog


Polarstern blog

MOSAiC Expedition



PS108 - Weekly Report No. 1. | 22 - 28 August 2017

Expedition „ROBEX-DM“

[31. August 2017] 

On Tuesday August 22 at 19:00 POLARSTERN left Tromsö with an unusual freight on board into direction of Svalbard. Unusual, because 10 of the 40 scientists on board are space experts and special are also the new and innovative robotic systems, which should improve our capabilities in deep-sea research. The new technologies include 3 different types of benthic crawler, each designed for its specific scientific purpose on the bottom of the sea, a glider for water column studies, unmanned aerial vehicles (UAVs) to support AUV operations under sea ice and an...

PS107 - Wochenbericht Nr. 3 | 7. - 13. August 2017

Long-term investigations & catching micro plastics

[14. August 2017] 

We finished our scientific program in the western Fram-Strait at the East-Greenland slope and went back to our main research area of the long-term observatory LTER-HAUSGARTEN – west off Svalbard. Like every summer here we realize an extensive sampling program from the sea-surface through the water column down to the seafloor. Here we are analyzing at almost twenty stations within water depth between 200 m and 5500 m seawater, plankton is caught, deep-sea sediments are sampled and photos and videos from the seafloor were made. By a...

PS107, 2nd weekly report | 31 July - 6 August 2017

How to find an eddy

[07. August 2017] 

On HAUSGARTEN cruises we typically study and sample the oceanographic conditions and the biological communities on a relatively large scale. Consecutive stations are often separated by 20-40 km or more. However, many important processes and physical-biological interactions take place on much smaller spatial scales. In order to show how new measurement and sampling techniques capable of achieving a high horizontal resolution in combination with interdisciplinary cooperation can study such small scale processes, we decided to launch a complementary...

PS107 - Weekly Report No. 1 | 23 - 30 July 2017

Finally, we are let loose

[31. July 2017] 

In the late afternoon of June 23rd we (48 scientists, engineers, technicians and students from eleven nations) departed from Tromsø and enjoyed the marvellous weather. The sun was shining from a blue sky while POLARSTERN passed the fjords towards the North-Atlantic. Finally, we are let loose.

PS106/2 - Weekly Report No. 9 | 16 - 23 July 2017

Week 9: Fish!

[20. July 2017] 

As soon as we reached the more open marginal sea ice zone in the Barents Sea east of Svalbard, we could finally start fishing with the bottom trawl. Most parts of our area of investigation had a closed pack-ice cover reaching far south onto the Svalbard and Barents Sea shelves.