brajard.bsky.social
Julien Brajard
@brajard.bsky.social
280 followers 78 following 30 posts
Senior Researcher at the Nansen Center in Bergen. Working with machine learning, Earth System modeling, and data assimilation.
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · 10d
NB: small error in the right row of figures 8 and 9.
brajard.bsky.social
Julien Brajard @brajard.bsky.social · 10d
Conditional Flow matching is a very efficient generative AI concept, close to diffusion models. Here is a wonderful and visual explanation of how it works!
dl.heeere.com/conditional-...
A Visual Dive into Conditional Flow Matching | ICLR Blogposts 2025
Conditional flow matching (CFM) was introduced by three simultaneous papers at ICLR 2023, through different approaches (conditional matching, rectifying flows and stochastic interpolants). <br/> The m...
dl.heeere.com
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jul 12
We have 2 positions open at the Nansen Environmental and Remote Sensing Center (NERSC), one in data assimilation (same group as mine) and one in the ocean modelling group.

Application deadline: 18th August

www.jobbnorge.no/en/available...

www.jobbnorge.no/en/available...
Researcher Position in Data Assimilation&nbsp; (281670) | Nansen Environmental and Remote Sensing Center
Job title: Researcher Position in Data Assimilation&nbsp; (281670), Employer: Nansen Environmental and Remote Sensing Center, Deadline: Monday, August 18, 2025
www.jobbnorge.no
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jul 12
Interested in working in a world-leading and motivating research group, located in one of the most beautiful places on Earth?
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Julien Brajard @brajard.bsky.social · Jun 16
Well done guys! But I don’t think I was part of the team 😉
brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jun 10
The call is open to all researcher working in a French institution.
The links for the videocall:
📅 Wednesday, June 11, 2025 – 4:00 PM (Paris time)
cnrs.zoom.us/j/9818976076...

📅 Thursday, June 12, 2025 – 12:30 PM (Paris time)
univ-lille-fr.zoom.us/j/9520884409...
Join our Cloud HD Video Meeting
Zoom is the leader in modern enterprise cloud communications.
cnrs.zoom.us
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jun 10
Join the PNTS committee during one of the upcoming videoconferences to ask your questions and learn more about the program:

📅 Wednesday, June 11, 2025 – 4:00 PM (Paris time)
🔗 Join via Zoom (CNRS)

📅 Thursday, June 12, 2025 – 12:30 PM (Paris time)
🔗 Join via Zoom (Lille University)
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jun 10
The program is open to French researchers—including non-permanent staff—and offers funding for project development in these areas.

📢 Learn more and apply here (deadline: 5 Sept. 2025): programmes.insu.cnrs.fr/pnts/appel_o...
Appel à projets en cours - Programmes de l'INSU
L’appel à projets PNTS 2026 est ouvert sur Sigap du 1er juin 2025 au 5 septembre 2025, 17h (heure de Paris). Fichier attaché Taille Texte de l’appel à projets PNTS 2026 907 Ko Dossier scientifique PNT...
programmes.insu.cnrs.fr
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jun 10
🚨 Call for Proposals – PNTS Program 🇫🇷

The PNTS (Programme National de Télédétection Spatiale) supports researchers developing algorithms and validation procedures for remote sensing data across diverse domains: ocean, atmosphere, continental surfaces, and solid Earth.
Appel à projets en cours - Programmes de l'INSU
L’appel à projets PNTS 2026 est ouvert sur Sigap du 1er juin 2025 au 5 septembre 2025, 17h (heure de Paris). Fichier attaché Taille Texte de l’appel à projets PNTS 2026 907 Ko Dossier scientifique PNT...
programmes.insu.cnrs.fr
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Reposted by Julien Brajard
leapstc.bsky.social
LEAP-STC @leapstc.bsky.social · Jun 3
Please join us for a Summer'25 Lecture in #Climate #Data Science w/TOBIAS FINN @ecoledesponts.bsky.social!

📅 THIS THURSDAY || 6/5/25
🕛 12p EST
📍 @columbiaseas.bsky.social Innovation Hub/Zoom
💻 RSVP: www.eventbrite.com/e/1363524320...

#LEAPEducation #community #physics #climatemodel #AI #ML
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Apr 29
📢 New CFP: Special Collection in EDS!

Calling for work exploring the convergence between #data-driven methodologies (#AI, #machinelearning) and physical modeling for Earth system science, building upon an upcoming workshop #EGU25 (@egu.eu).

ℹ️ How to submit: bit.ly/3Eq4WLV
📅 Deadline: 31 Oct 2025
EDS Special Collection on Connecting Data-Driven and Physical Approaches
EDS Special Collection on Connecting Data-Driven and Physical Approaches
bit.ly
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Apr 29
And if you are looking for a venue to publish your work, please consider the following
@envdatascience.bsky.social
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Julien Brajard @brajard.bsky.social · Apr 29
The Copernicus Marine Service and the European Digital Twin of the Ocean
Orals | Thu, 01 May, 14:00–18:00 (CEST) Room L2
Posters on site | Attendance Thu, 01 May, 10:45–12:30 (CEST)
meetingorganizer.copernicus.org/EGU25/sessio...
Session OS4.7
meetingorganizer.copernicus.org
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Apr 29
Machine Learning for Ocean Science
Orals | Thu, 01 May, 08:30–12:30 (CEST), 14:00–15:45 (CEST) Room -2.41/42
Posters on site | Attendance Thu, 01 May, 16:15–18:00 (CEST)
meetingorganizer.copernicus.org/EGU25/sessio...
@rachelfurner.bsky.social @redouanelg.bsky.social @aida-alvera.bsky.social
Session ITS1.2/OS4.8
meetingorganizer.copernicus.org
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Apr 29
If you are at EGU, you can check out those two sessions related to machine learning 🤖 and the ocean 🌊
@egu.eu #egu25
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Reposted by Julien Brajard
blackhc.bsky.social
Andreas Kirsch @blackhc.bsky.social · Jan 7
Ever wondered why presenting more facts can sometimes *worsen* disagreements, even among rational people? 🤔

It turns out, Bayesian reasoning has some surprising answers - no cognitive biases needed! Let's explore this fascinating paradox quickly ☺️
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Reposted by Julien Brajard
neccton.bsky.social
NECCTON Project @neccton.bsky.social · Mar 6
At the NECCTON Annual Meeting in Trieste, we unveiled co-designed case studies that are reshaping fisheries management and marine conservation. Fresh tools & ideas are setting our oceans on a new course. Learn more: neccton.eu/case-studies @copernicusmarine.bsky.social @plymouthmarine.bsky.social
NECCTON Case Studies
NECCTON will be working in collaboration with a range of stakeholders to supporting fisheries management and biodiversity conservation through development and exploitation of NECCTON tools and product...
neccton.eu
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jan 10
can you please add me?
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Reposted by Julien Brajard
climformatics.bsky.social
Climate Informatics @climformatics.bsky.social · Jan 7
[3 days:] 📚🌍 Submit to #CI2025 and have a chance to publish in @cambridgeup.bsky.social "Environmental Data Science" #OpenAccess #Science

2025.climateinformatics.com.br
Climate Informatics 2025
Hosted by IBM Research Brazil at _Centro Cultural Fundação Getúlio Vargas (FGV)_ from **April 28 to 30, 2025**.
2025.climateinformatics.com.br
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jan 7
In this last session, we are honored to have Julie Deshayes as solicited speaker.
@rachelfurner.bsky.social @aida-alvera.bsky.social @redouanelg.bsky.social
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jan 7
If you are developing or using an original machine learning algorithm for the ocean, this is where you can go: "Machine Learning for Ocean Science" meetingorganizer.copernicus.org/EGU25/sessio...
Session ITS1.2/OS4.8
meetingorganizer.copernicus.org
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jan 7
If you develop new products or models for the ocean, please consider the session "The Copernicus Marine Service and the European Digital Twin of the Ocean " meetingorganizer.copernicus.org/EGU25/sessio...
Session OS4.7
meetingorganizer.copernicus.org
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brajard.bsky.social
Julien Brajard @brajard.bsky.social · Jan 7
Happy New Year 2025!🌍
To start well the year, please consider submitting an abstract to EGU. #EGU25
@eurogeosciences.bsky.social
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Julien Brajard @brajard.bsky.social · Dec 2
These diffusion models are incredibly versatile!
aida-alvera.bsky.social
Aida Alvera-Azcárate @aida-alvera.bsky.social · Dec 2
🌊 We have a new paper! 🥳: Ensemble reconstruction of missing satellite data using a denoising diffusion model: application to chlorophyll a concentration in the Black Sea, by Barth et al (including @brajard.bsky.social 😀)

os.copernicus.org/articles/20/...
Ensemble reconstruction of missing satellite data using a denoising diffusion model: application to chlorophyll a concentration in the Black Sea
Abstract. Satellite observations provide a global or near-global coverage of the World Ocean. They are however affected by clouds (among others), which severely reduce their spatial coverage. Differen...
os.copernicus.org
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Julien Brajard @brajard.bsky.social · Nov 29
Only 3 days left to submit an abstract to the Living Planet Symposium!
brajard.bsky.social
Julien Brajard @brajard.bsky.social · Nov 20
The Living Planet Symposium 2025 conference will take place 23–27 June 2025 in Vienna, Austria! 🌍
🔔 Abstract submission deadline: 1 December 2024
I warmly invite you to contribute to our session:
D.02.04 Machine Learning for Earth System Observation and Prediction
https://www.registration.lps25.esa.int/PresentationPortal/Account/Login?ReturnUrl=%2FPresentationPortal%2Fliving-planet-2025%2Fabstract-submission💡
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