Polarstern in Bremerhaven

“But where were the polar bears?” We were all on our way back to the car after visiting AWI’s ice breaker, the Polarstern – and Mattis has learned enough about my work to know that Polarstern equals ice and snow, which apparently equals polar bears. But they were not there. We did, however, see a helicopter, labs, sleeping quarters and even a film with penguins – but no polar bears.

For the past couple of years my work has focused on modeling the the Arctic Ocean biogeochemistry, and this summer I will probably participate in a cruise between Svalbard and Greenland. This area is called the Fram Strait, and it’s one of the main gateways to the Arctic, where AWI has monitored the water for several years to help explain how and why the Arctic Ocean is changing.

So when the Polarstern opened its’ doors for the public this weekend, we waited in line for the kids to see where I will go this summer. We actually had to wait in line for 2.5 hours… But Esben and I took turns in the queue, while the kids went around with the other one to check out the many activities. We saw ROV’s filming and taking samples under water, talked to the scientific divers and decorated a Polarstern bag to bring home with us. And for lunch Runa chose a bratwurst of course, we are after all almost real Germans.

And finally, after going through a metal detector and becoming registered we were allowed inside the Polarstern accompanied by our new friends from the long wait. It was nice to show the kids where I worked the last time I went and where I will be this summer. And we talked about the many different nets and machines, had a look in a microscope, saw the helicopter and even the air balloon, which the kids know from a book at home. Esben noted that the bridge had even more instruments than Jensine does, which is rather impressive, and it was cool for them to see where many of the pictures from the Polarstern have been taken.

It’s been five years since I last went on a cruise on the Polarstern. Back then my work focused on modeling Southern Ocean biogeochemistry, and especially the trace metal iron, and I was lucky to go on a 10-week cruise from Cape Town in South Africa to Punta Arenas in South America. My group was responsible for measuring chlorophyll and particulate organic carbon on the way, while others measured nutrient concentrations, oxygen, salinity, temperature etc.  All in all, it gave an overview of the conditions in the ocean when we were there and helped understand how the physics controls the biology to some degree. Apart from the interesting science, it’s quiet a privilege to go to such a special place as the Southern Ocean, and I am sure the next cruise will be another great experience.

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