@oceanographer profile picture
Nikolay Koldunov @oceanographer
Joined June 2009
  • Tweets 895
  • Following 563
  • Followers 1,426
104 Photos and videos
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Nikolay Koldunov@oceanographer
23 Nov 2024
Elon Musk killed scientific Twitter. I am moving to bsky.app/profile/oceanograph…
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Qiang Wang@QiangWang_AWI
27 Nov 2024
The eastern Arctic Ocean became warmer with weakened stratification in the 2010s, the so-called "atlantification". This paper compares different hypotheses, showing that sea ice decline was the main driver, while natural variability played smaller role. science.org/doi/10.1126/scia…

Recent emergence of Arctic atlantification dominated by climate warming

Arctic atlantification emerged with contributions from natural variability, but climate change was the primary driver.

science.org
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🌊 PostDoc in Numerical Ocean Modelling (f/m/d) 🌊 Join AWI to study energy transfers & numerical mixing in dense ocean currents using high-res models (MITgcm, FESOM2). Shape the future of ocean dynamics! 📍 Bremerhaven 🔗 Details: jobs.awi.de/Vacancies/1859/D…
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🚨 Freshwater bottleneck in the Arctic? 🌊 A Beaufort Gyre freshwater release shifts to a buffer zone near Greenland, delaying Arctic freshwater flow to the North Atlantic. Implications for ocean stratification, salinity anomalies, & AMOC? Read in Nature Geoscience:
Qiang Wang@QiangWang_AWI
20 Nov 2024
We found an Arctic freshwater anomaly has shifted to a buffer zone just behind the doors leading to the North Atlantic. A "natural experiment" is getting set up. New observations in the North Atlantic in coming years can be used to test diff. hypothesis! doi.org/10.1038/s41561-024-0…
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Qiang Wang@QiangWang_AWI
20 Nov 2024
We found an Arctic freshwater anomaly has shifted to a buffer zone just behind the doors leading to the North Atlantic. A "natural experiment" is getting set up. New observations in the North Atlantic in coming years can be used to test diff. hypothesis! doi.org/10.1038/s41561-024-0…
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Marylou Athanase@MarylouAthanase
14 Nov 2024
Our latest @AWI_Media paper is now featured on the front page of @CommsEarth !🎉👇
Nature Portfolio
@NaturePortfolio
13 Nov 2024
A paper in @CommsEarth presents an automated system that unveils the climate change signal of the day in near-real-time storylines. The system suggests that storm Boris deposited about 9% more rain due to human-induced warming. go.nature.com/3AzEj5i
This is figure 1, which shows the storylines of the extreme rainfall of the September 2024 storm Boris.

ALT This is figure 1, which shows the storylines of the extreme rainfall of the September 2024 storm Boris.
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🌧️ Storm “Boris” dumped 9% more rain due to global warming, fueling floods in Europe. AWI’s new ‘storyline’ simulations reveal: what if Boris hit in a world without climate change? Press release: awi.de/en/about-us/service/p…

Marylou Athanase@MarylouAthanase
8 Nov 2024
🌧️Extreme rainfall: how much is due to climate change? For Sep. 2024 Storm Boris, a substantial amount. At @AWI_Media, we find this using a new & relatable near-real-time system which unveils the “climate change signal of the day” for (extreme) weather: doi.org/10.1038/s43247-024-0…
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Planning my bike trip with #OpenAI #ChatGPT search function. It gets information on the weather, and then I can use it to analyse conditions day by day. Not sure about the quality so far, but certainly promising. One more of my startup ideas is dead :)
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Had a fantastic time collaborating with colleagues from @ECMWF on this study! 🚀 This marks a significant first step toward integrating AI-driven weather forecasting models into climate research. Exciting times ahead! 🌍🔍 #Climate #AI #WeatherForecast
Thomas Rackow 🧊@thomas_rackow
11 Oct 2024
Can #AI-based weather forecasting models (trained on present-day data) provide skillful forecasts also in different colder and warmer states of the climate system? Our new preprint @arxiv explores this question: doi.org/10.48550/arXiv.2409.… Here is what we found so far (🧵1/6)
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Nikolay Koldunov retweeted
Thomas Rackow 🧊@thomas_rackow
11 Oct 2024
Can #AI-based weather forecasting models (trained on present-day data) provide skillful forecasts also in different colder and warmer states of the climate system? Our new preprint @arxiv explores this question: doi.org/10.48550/arXiv.2409.… Here is what we found so far (🧵1/6)

ECMWF@ECMWF
11 Oct 2024
🌍🌐 Can AI transform climate science? A new preprint paper led by ECMWF and @AWI_Media tested AI based models in various climate conditions. Results suggest that AI models can skilfully forecast weather in current, past, and future climates! Learn more ➡ destine.ecmwf.int/news/ai-ba…
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Francisco J. Doblas-Reyes@DoblasReyes
10 Oct 2024
Interested in a four-year research contract with few strings attached? If you work or know of an early-career scientist working on remote sensing applications, have a look at this vacancy bsc.es/join-us/job-opportuni… @BSC_CNS @icreacommunity @ICMCSIC @la_UPC

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ECMWF@ECMWF
11 Sep 2024
🌍🌐 ECMWF's @thomas_rackow explores the topic of km-scale as a key aspect of #DestinE digital twins, highlighting features of new km-scale models like those in @nextgems_eu. Find out more about the various benefits with visual examples ️ ➡️ destine.ecmwf.int/video/km-s…
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Never thought I would see the Aurora in Northern Germany...
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High-resolution (9km in atmosphere, 4-25km ocean) projections of climate change for the 2090s and other decades. A joint effort by teams from the IBS Center for Climate Physics and @AWI_Media #FESOM egusphere.copernicus.org/pre…
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Another attempt at using SAM 2 from @AIatMeta on ocean data, this time focusing on the Gulf Stream from AVISO SSH observations. It’s amazing how ease of use (thanks to a great UI) encourages experimentation.
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Tracking some ocean eddies with SAM 2. :) Data from #FESOM2 1-km simulation of the Arctic Ocean.
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Amazing work! Congratulations to the team on getting it published in Nature!
Stephan Hoyer
@shoyer
22 Jul 2024
I'm incredibly proud to share NeuralGCM, our new AI and physics based approach to weather and climate modeling with state-of-the-art accuracy, published today in @Nature: nature.com/articles/s41586-0…
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Job offer (ML/AI) 🌊🌍 We’re developing AI model for ocean & climate research. Work on training AI models on exascale HPC systems, and evaluating climate predictions. Be part of a team making a global impact! 🌐🔬 2 Positions: jobs.awi.de/Vacancies/1720/D… jobs.awi.de/Vacancies/1721/D…
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Ryan Abernathey
@rabernat
18 Jul 2024
Such cool work from the amazing folks at @carbonplanorg! This makes it much easier to visualize multiscale @zarr_dev data in the browser.
Pangeo@pangeo_data
17 Jul 2024
New blog post! medium.com/pangeo/zarr-pyram…
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Giuseppe Zappa@giu_zappa
3 Jul 2024
I have a 12-month research scientist position in Bologna (ricercatore a tempo determinato) to work with me and @oloapinivad on understanding the risk of extreme European river floods with the Unprecedented Simulated Extreme Ensemble (UNSEEN) approach. Deadline 22 July! @CnrIsac
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