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Alfred Wegener Institute @awi.de · 23d

The heart of the new Polarstern ❤️🚢

Together with our shipyard TKMS, we have reached a milestone in the construction of the new Polarstern: the new propulsion unit for the icebreaker has been finalized and the corresponding contracts have been signed.

www.awi.de/en/about-us/...

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Alfred Wegener Institute @awi.de · 27d

Can you spot the Polarstern amid the ice floes of the Arctic? 🧊A satellite image shows, that we are just a pixel amidst ice floes (light grey) and open water (dark). Polarstern appears as a bright spot in the image because it reflects electromagnetic radiation more strongly than its surroundings.

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Alfred Wegener Institute @awi.de · Sep 8

Unique concept for observing Arctic sea ice successfully implemented: AWI scientists were able to study different types of sea ice in parallel during the Polarstern expedition “CONTRASTS.” 🧊

www.awi.de/en/about-us/...

Photo: Evgenii Salganik

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Tessmar-Raible Labs @tessmarraiblelabs.bsky.social · Sep 5

Excited to share that senior postdoc Sören Häfker @awi.de just secured one of the highly competitive @erc.europa.eu ‬ @ercgrantees.bsky.social #ERCStG grants to pioneer work decoding the molecular clockwork driving rhythmicity of krill in the #marine #foodweb! More on BICLOPS here: bit.ly/4lYpBq0

A composite picture showing a microscope image of the North Atlantic krill Calanus finmarchicus (left) and researcher Soeren Haeckel (right)

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Alfred Wegener Institute @awi.de · Sep 4

Johann Klages gave a plenary talk on Antarctic research at #ICP15 in Bangalore, India. A once-in-a-lifetime honor for groundbreaking insights. AWI colleagues from Marine Geology and Marine Biogeochemistry also presented on their diverse projects.👏

Photos: personal

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Alfred Wegener Institute @awi.de · Aug 29

Lukas Weis, who is spending the winter at Neumayer Station III in Antarctica, explains in the AtkaXpress blog how he takes the most beautiful photos of the polar night. #AureliaBorealis

blogs.helmholtz.de/atkaxpress/e...

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Reposted by Alfred Wegener Institute

Remote Sensing of Polar Regions, University of Bremen @polarbremen.bsky.social · Aug 27

Hi! I’m ARIEL, an L-band microwave radiometer 📡, and this is my little buddy Sebastian (the pulka 🛷). Together, we traveled across 3 Arctic ice stations ❄️ to uncover the invisible (aka microwave) secrets of ever-changing summer sea ice and its thickness on the @awi.de CONTRASTS #expedition 🧊.

Smiling Gunnar standing in fron of radiometer on pulka with Polarstern in the background

Radiometer mounted on pulka in foreground, person taking measurements and research vessel Polarstern in the background.

Radiometer mounted on pulka in front of a beautiful fresh sea ice area.

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Remote Sensing of Polar Regions, University of Bremen @polarbremen.bsky.social · Aug 21

Can the color of melt ponds reveal the sea-ice thickness below? 🧊 And can we measure this from #space? 🛰️ On the @awi.de CONTRASTS #expedition, we’re testing this with a 200+ band hyperspectral camera and co-located ice thickness measurements for a large variety of #Arctic ponds.

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Alfred Wegener Institute @awi.de · Aug 21

Our icebreaker Polarstern is currently in the Arctic, where it has met up with our polar aircraft Polar 6 for the second time. The joint measurements enable researchers to place their data in an even broader context.🧊

More information in the Polarstern app:

follow-polarstern.awi.de/blog/21-08-2...

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Reposted by Alfred Wegener Institute

Guido Grosse @grosseguido.bsky.social · Aug 16

A very successful Perma-X campaign is ending now and both the Polar-5 and the team left Inuvik. We are looking forward to analyze a mountain of >30 TB of new data collected to better understand how fast #permafrost thaws and subsides, coasts erode, and lakes and vegetation change. @awi.de

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Dr. Melanie Bergmann @melaniebergma18.bsky.social · Aug 11

@scientistscoa.bsky.social invites you to a press conference:
⏰ Tuesday 12/08/25, 15.30 CEST
📍 INC Press Room XXVII, Building E & online
Seating will be prioritized for media & delegations.
Media can register to join virtually & submit questions: lnkd.in/eW2Mnanz
💻 Live broadcast: lnkd.in/ed99he3j

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Reposted by Alfred Wegener Institute

Dr. Melanie Bergmann @melaniebergma18.bsky.social · Aug 11

🎢 So glad, to be in this #INC5.2 roller coaster journey together again: Annika Jahnke, @ufz.de and I, @awi.de ( @helmholtz.de) accompanying the German delegation and @scientistscoa.bsky.social.
Have we reached a breaking point in the negotiations for a global #PlasticsTreaty?!
🌎 ⚕️ 🌡️ 🐙

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Reposted by Alfred Wegener Institute

Dr. Melanie Bergmann @melaniebergma18.bsky.social · Aug 9

Grateful to civil society who puts itself out in a powerful silent action as delegates enter the stock-taking plenary highlighting the urgent need for an ambitious #PlasticsTreaty for human & planetary health & climate including provisions on #plastic chemicals and production levels. @awi.de

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Alfred Wegener Institute @awi.de · Aug 8

AWI Vice Director Dr. Uwe Nixdorf, has been awarded with the "Council of Managers of National Antarctic Programs" (COMNAP) Medal. 🏆🎉

This international honor recognizes outstanding contributions to the promotion and support of #Antarctic research. Congratulations!

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Dr. Melanie Bergmann @melaniebergma18.bsky.social · Aug 5

The second part of the 5th round of negotiations for a global #PlasticsTreaty (#INC5.2) has started! All hands on deck, let’s do this! May ambition rule: for human and planetary health and our climate ! 💪🌏🐟 #plastic
@awi.de

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Alfred Wegener Institute @awi.de · Jul 22

🧊✈️ On Sunday, Polar 6 launched this year's IceBird summer campaign by flying from Longyearbyen to Station Nord, a Danish military base in Greenland. The mission is to track changes to the sea ice and to support the CONTRASTS expedition aboard the Polarstern research vessel.

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Reposted by Alfred Wegener Institute

Oceans & Sea Ice NPI @oceanseaicenpi.bsky.social · Jul 18

Our team member Dmitry is onboard @awi.de Polarstern on the #CONTRASTS expedition in the #Arctic Ocean. Part of the work is to deploy a number of autonomous systems to track the movement of the #seaice and how it is melting. Data will be made accessible on the @meereisportal.bsky.social data portal

Dmitry and his helpers deploying an upper ocean buoy on the ice.

Sea ice mass balance buoy deployed in the ice.

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Alfred Wegener Institute @awi.de · Jul 16

The new Emmy Noether Group, 'Artemics', at the AWI is investigating how waves stir up the Arctic Ocean. Using advanced climate models, the team aims to investigate how waves that form inside the ocean affect the Arctic sea ice.

www.awi.de/en/about-us/...

Photo: S. Hendricks

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Alfred Wegener Institute @awi.de · Jul 8

What is life like in the darkness of the polar night? The overwintering team at #Neumayer Station III in #Antarctica share their experiences on the #AtkaXpress blog.

blogs.helmholtz.de/atkaxpress/e...

Photo: Lukas Weis

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Alfred Wegener Institute @awi.de · Jul 4

AWI scientists examine 1.2 million-year-old ice: An international research team is currently analyzing the oldest ice core in the world. In January, the research team brought the ice core back from Antarctica. 🧊

Photo: Kerstin Rolfes

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Reposted by Alfred Wegener Institute

Lars Kaleschke @seaice.de · Jul 3

Live view from RV Polarstern 🌊

video.panomax.com/cams/10085/v...

data.meereisportal.de/relaunch/con...

Live data from the RV Polarstern | Data | Meereisportal

The data and image archive of meereisportal.de provides sea ice data of the Arctic and Antarctic. In addition to graphic representations of the underlying verified data and derived data products it is...

data.meereisportal.de

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Reposted by Alfred Wegener Institute

Matthias Wietz @matthiaswietz.bsky.social · Jul 3

Happy to contribute #eDNA sequences from our #Arctic FRAM Observatory to GRUMP, a microbial database covering the world ocean 🌊 many thanks @jedfuhrman.bsky.social & @jcmcnch.bsky.social for the invitation to join!

@awi.de @mpimarinemicrobio.bsky.social @chrbienhold.bsky.social

Jed Fuhrman @jedfuhrman.bsky.social · Jul 2

Please Re-Post. Our global GRUMP microbial ocean database is out in Scientific Data! Unfractionated, single universal PCR, with Archaea, Bacteria, and Eukaryotes all on the same scale with the same denominator. Pole to pole, depths to 6000m. Lots of metadata. www.nature.com/articles/s41...

Characterizing organisms from three domains of life with universal primers from throughout the global ocean - Scientific Data

Scientific Data - Characterizing organisms from three domains of life with universal primers from throughout the global ocean

www.nature.com

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Alfred Wegener Institute @awi.de · Jul 2

Today, the Polarstern sets off for the Arctic: From Tromsø in Norway, our research icebreaker sets off on the "Contrasts" expedition. Over the next two months, the international research team on board wants to investigate why the sea ice is melting and what consequences this has.🧊

Photo: F.Mehrtens

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Reposted by Alfred Wegener Institute

Jan Wehner @jnwhnr.bsky.social · Jun 30

Excited to see first video projects with @awi.de published!

Here you can see simulated past extreme weather events in different climate scenarios to better understand the impact of climate change. More soon! @ecmwf.int

@climatenews.bsky.social
@insideclimatenews.org

ECMWF @ecmwf.int · Jun 23

🌍🌐 What if we could relive past extreme weather events - only this time in a colder or warmer world? That’s exactly what scientists working on the Climate Change Adaptation Digital Twin (Climate DT) of the EU-funded DestinE initiative are doing. Find out more ➡️ destine.ecmwf.int/news/storyli...

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Alfred Wegener Institute @awi.de · Jun 25

The overwintering at the Franco-German research station #AWIPEV in Ny-Ålesund, Svalbard, also celebrated midsummer last weekend! 🥳

Photo: Esther Horvath

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