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Nikolay Koldunov

@oceanographer.bsky.social

Oceanographer, climate and ocean modeler, interested in ML for climate and LLMs. Senior scientist at AWI. Working on FESOM2 unstructured ocean model, km-scale climate modelling, data visualisation. More info: https://koldunovn.github.io/

743 Followers  |  897 Following  |  80 Posts  |  Joined: 21.11.2024  |  2.3215

Latest posts by oceanographer.bsky.social on Bluesky

hk25-teams/hk25-DestinE at main ยท digital-earths-global-hackathon/hk25-teams Analysis scripts for the global hackathon. Contribute to digital-earths-global-hackathon/hk25-teams development by creating an account on GitHub.

Access is currently restricted to EU institutes. You can follow instructions and examples here to access the data: github.com/digital-eart...

23.06.2025 20:20 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
From Past to Future - The Central European Floods, 2024 in a Changing Climate.โ€ โ€“ Storm Boris
YouTube video by ECMWF From Past to Future - The Central European Floods, 2024 in a Changing Climate.โ€ โ€“ Storm Boris

DestinEโ€™s just dropped โ€œFrom Past to Futureโ€ videos: km-scale replays of real floods & hurricanes under past, present & +2 ยฐC climates. See exactly how warming reshapes impactsโ€”turning high-res science into must-see visuals. ๐Ÿงช

destine.ecmwf.int/news/storyli...

www.youtube.com/watch?v=5V62...

23.06.2025 10:52 โ€” ๐Ÿ‘ 6    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

New opportunity in our group!

04.04.2025 08:21 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Accelerating Earth Science Discovery via Multi-Agent LLM Systems This Perspective explores the transformative potential of Multi-Agent Systems (MAS) powered by Large Language Models (LLMs) in the geosciences. Users of geoscientific data repositories face challenges...

How will interaction with geophysical data evolve in the age of AI? ๐Ÿค–๐ŸŒ

In our latest preprint, we explore this question - not just conceptually, but with a hands-on prototype using the PANGAEA archive. Check it out!

arxiv.org/abs/2503.05854

11.03.2025 08:32 โ€” ๐Ÿ‘ 6    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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๐Ÿšจ Last chance to submit your application! ๐Ÿšจ

๐ŸŒŠ Scientist in High-Resolution Sea Ice Modeling
๐Ÿ”— jobs.awi.de/Vacancies/19...

๐Ÿง  Scientist in AI-based Emulation for High-Resolution Sea Ice Modeling
๐Ÿ”— jobs.awi.de/Vacancies/19...

Please share! ๐Ÿงชโ„๏ธ๐ŸŒ #ScienceJobs #SeaIce #AI

27.02.2025 07:36 โ€” ๐Ÿ‘ 9    ๐Ÿ” 7    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Wow! :)

26.02.2025 17:42 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Background of world map with grid overlaid. Text: "AIFS operational"

Background of world map with grid overlaid. Text: "AIFS operational"

We have taken our Artificial Intelligence Forecasting System (AIFS) into operations today to run side by side with our physics-based weather forecasts. The #AIFS outperforms traditional models for many measures, at a fraction of energy use. โžก๏ธ www.ecmwf.int/en/about/med...
#AI #MachineLearning

25.02.2025 11:07 โ€” ๐Ÿ‘ 146    ๐Ÿ” 63    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 15

What is the resolution? :)

26.02.2025 09:46 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

One of the greatest things we do in #DestinE is high-resolution storylines, which show how present-day extreme events might unfold in the future. Check out this ECMWF blog post for details on how itโ€™s done! ๐Ÿงช

24.02.2025 11:56 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Alfred Wegener institute is finally here @awiexpedition.bsky.social !!!

19.02.2025 20:48 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
This image is a global visualization of aerosol distributions on September 5, 2020, at 00:00 UTC. It represents different types of aerosols using a color-coded scheme:
	โ€ข	Red represents dust (du), primarily visible over arid regions like the Sahara Desert and extending into the Atlantic.
	โ€ข	Blue indicates sea salt (ss), prominent over the oceans, particularly in stormy regions.
	โ€ข	Green signifies carbonaceous aerosol (ca), which is associated with biomass burning and pollution, visible over regions like the Amazon, Central Africa, and parts of Southeast Asia.
	โ€ข	Yellow shows sulfuric aerosol (su), often linked to volcanic emissions and industrial activity.

The image is overlaid on a world map with latitude and longitude markers. The transparency of the colors varies to indicate concentration levels, with fully transparent areas representing minimal aerosol presence and fully opaque areas representing maximum concentrations. The right-hand legend provides a scale for interpreting the aerosol concentrations in milligrams per square meter.

This image is a global visualization of aerosol distributions on September 5, 2020, at 00:00 UTC. It represents different types of aerosols using a color-coded scheme: โ€ข Red represents dust (du), primarily visible over arid regions like the Sahara Desert and extending into the Atlantic. โ€ข Blue indicates sea salt (ss), prominent over the oceans, particularly in stormy regions. โ€ข Green signifies carbonaceous aerosol (ca), which is associated with biomass burning and pollution, visible over regions like the Amazon, Central Africa, and parts of Southeast Asia. โ€ข Yellow shows sulfuric aerosol (su), often linked to volcanic emissions and industrial activity. The image is overlaid on a world map with latitude and longitude markers. The transparency of the colors varies to indicate concentration levels, with fully transparent areas representing minimal aerosol presence and fully opaque areas representing maximum concentrations. The right-hand legend provides a scale for interpreting the aerosol concentrations in milligrams per square meter.

Preprint summarizing the first results from the nextGEMS project, which prepares several coupled models to run at kilometer scale: egusphere.copernicus.org/preprints/20... ๐Ÿงช

19.02.2025 10:48 โ€” ๐Ÿ‘ 12    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@carbonbrief.org lists our December paper among the most featured 2024 papers, current score 2,644 - top of the charts for @altmetric.com mentions on @bsky.app ๐Ÿคฏ

๐Ÿ“ˆ www.carbonbrief.org/analysis-the...

๐Ÿ”“A free-access reprint link to our paper can be found on Helges website www.awi.de/en/about-us/...

11.02.2025 10:42 โ€” ๐Ÿ‘ 13    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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My wife just won the Bremen Women's Chess Championship 2025 and qualified for the German National Championship! Next stop: Munich! So proud of her!

09.02.2025 16:42 โ€” ๐Ÿ‘ 9    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Yes this time is very warm and practically without snow. But I was happy to see at least some sea ice from the fairy to Suomenlinna :)

07.02.2025 22:11 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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It's always great to visit Helsinki-one of my favorite cities in the world. This time, I caught a glimpse of sea ice, which weโ€™ll be modeling in the @terradt.bsky.social project (by the way, we're hiring!). The project kicked off in Helsinki this week.

07.02.2025 19:37 โ€” ๐Ÿ‘ 9    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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๐Ÿšจ Job Alert! ๐Ÿšจ

Our team is hiring for the @terradt.bsky.social project.

๐ŸŒŠ Scientist in High-Resolution Sea Ice Modeling
๐Ÿ”— jobs.awi.de/Vacancies/19...

๐Ÿง  Scientist in AI-based Emulation for High-Resolution Sea Ice Modeling
๐Ÿ”— jobs.awi.de/Vacancies/19...

Please share! ๐Ÿงชโ„๏ธ๐ŸŒ #ScienceJobs #SeaIce #AI

04.02.2025 09:50 โ€” ๐Ÿ‘ 16    ๐Ÿ” 6    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

This is the description of our km-scale coupled climate model configuration. A lot of details in a thread from @trackow.bsky.social ๐Ÿงช

13.01.2025 09:00 โ€” ๐Ÿ‘ 17    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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New IBCAO (International Bathymetric Chart of the Arctic Ocean) version is out: doi.org/10.1038/s415...

Many of us who study the Arctic now need to update our Arctic Bathymetry posters on our walls! :)

Figure below shows a comparison of versions 4 and 5. ๐Ÿงช๐ŸŒŠ

10.01.2025 13:38 โ€” ๐Ÿ‘ 13    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Great thread from @jhauck.bsky.social with more details on this study ๐Ÿงช

06.01.2025 23:18 โ€” ๐Ÿ‘ 19    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

๐Ÿงช

06.01.2025 19:47 โ€” ๐Ÿ‘ 9    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Increased sunlight and more nutrients in the Arctic Ocean wonโ€™t boost carbon storage as expected :(
๐ŸŒŠ๐Ÿงช #FESOM

Article in Nature Climate Change: www.nature.com/articles/s41...

Press release from AWI: www.awi.de/en/about-us/...

06.01.2025 15:00 โ€” ๐Ÿ‘ 13    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

My book is still out there! Please use, adapt, and help maintain if you find it helpful for teaching!

14.12.2024 19:49 โ€” ๐Ÿ‘ 173    ๐Ÿ” 47    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 0
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Goodbye Washington, it was fun! #AGU24

14.12.2024 14:21 โ€” ๐Ÿ‘ 8    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Leveraging Machine Learning algorithms for improved Arctic sea-ice prediction using the Met Office suite of models | UCL Trees This project leverages advanced satellite remote sensing and machine learning (ML) to improve Arctic sea-ice forecasting. Traditional sea-ice models often develop significant biases in summer, particu...

Join me and the polar team here in UCL Earth Sciences + Met Office on an exciting CASE studentship looking at Leveraging Machine Learning algorithms for improved Arctic sea-ice prediction using the Met Office suite of models โ„๏ธ + ๐Ÿ’ป +๐Ÿ›ฐ๏ธ

www.trees-dla.ac.uk/projects/lev...

13.12.2024 19:33 โ€” ๐Ÿ‘ 3    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Session OS1.1

Exploring the Arctic Ocean? Planning to attend EGU25?

Submit an abstract to our session:"Changes in the Arctic Ocean, Sea Ice, and Subarctic Sea Systems: Observations, Models, and Perspectives" (t.ly/BvM9l)

Spread the word, and you see in Vienna for exciting talks, posters and discussions!

10.12.2024 14:32 โ€” ๐Ÿ‘ 5    ๐Ÿ” 8    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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The Globe in the Smithsonian Museum of Natural History is pretty good, but why the jet colourbar for SST? :)

11.12.2024 02:11 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Our work will also be (remotely) presented at #AGU24 !

agu.confex.com/agu/agu24/me...

Dec 11, 01:30pm - 02:30pm (Central Time)
Dec 12, 07:30am - 08:30am (Central Time)

10.12.2024 10:35 โ€” ๐Ÿ‘ 14    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

How does it work, Thomas? You or Helge will be online all the time?

10.12.2024 10:40 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

๐Ÿงช Link to the #agu24 talk today: agu.confex.com/agu/agu24/me...

10.12.2024 10:36 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I think it belongs to ๐Ÿงช

09.12.2024 21:45 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@oceanographer is following 20 prominent accounts