Louise Delaigue

#OSM26 this morning: Southern Ocean carbon sink in focus with @tricuso.bsky.social people ❄️

If you like your oceans cold and your carbon budgets complicated, this is the place. Come hear about all the Southern Ocean is doing to the global carbon cycle before most people finish their first coffee 🌊

Don’t forget, our first #OSM26 SOCONET Townhall is today at 12:45 in Hall 3. Come share your thoughts with us! 🌊

@pablotrucco.bsky.social can’t wait to see you!

You all, come see our #OSM26 session on Tuesday morning 🌊❄️

In Glasgow for #OSM26. Was promised rain all week. Day one: pure sun. Scotland, behaving ☀️

This week’s forecast just upgraded itself to: “awesome week for the first European OSM” 😎

There’s a communication kit in the presenter reminder emails! It’s a link to Canva.

Super "pumped" for #OSM26 next week in Glasgow 🌊 let's chat!

Autonomous Sensor for In Situ Measurements of Total Alkalinity in the Ocean Total alkalinity (TA) is one of the measurable parameters that characterize the oceanic carbonate system. A high temporal and spatial frequency in TA data can lead to better measurements, modeling, an...

🌊 Allisson Schaap et al. (2025) developed a submersible Total Alkalinity sensor capable of autonomous, direct measurements at full ocean depth.

Read the article: pubs.acs.org/doi/10.1021/...

@noc.ac.uk (3/3)

Passive acoustic monitoring from profiling floats as a pathway to scalable autonomous observations of global surface wind Abstract. Wind forcing plays a pivotal role in driving upper-ocean physical and biogeochemical processes, yet direct wind observations remain sparse in many regions of the global ocean. While passive ...

🔬 @ldelaigue.bsky.social et al. (2026) demonstrated how passive acoustic sensors mounted on biogeochemical #Argo floats can retrieve surface wind speed from hundreds of metres below the ocean surface.

Read the article: os.copernicus.org/articles/22/...

@euro-argo.eu @tricuso.bsky.social (2/3)

Happy International Day of Women and Girls in Science! Female scientists, technicians & engineers are fundamental in making GEORGE a success.

Today, we highlight the incredible work led by female scientists from the GEORGE community. ⬇️ (1/3)

Goooooold 🔥

Decadal and spatially complete global surface chlorophyll-a data record from satellite and BGC-Argo observations Abstract. Decadal-scale satellite-based climate data records of chlorophyll-a (chl-a), an essential climate variable, are now readily available at high accuracy and precision. These data are being ext...

New article in ESSD from @oc4c.bsky.social folk Dan, Gemma, Shubha and Jamie

'Decadal and spatially complete global surface chlorophyll-a data record from satellite and BGC-Argo observations'
essd.copernicus.org/articles/18/...

A winder-equipped float being towed by a ship, with the text reading 'Testing acoustic wind sensors for Southern Ocean deployment'.

What is small but has BIG potential to better understand air-sea processes? #Acoustic #wind #sensors!

Partners @euro-argo.eu & @cnrs.fr in collaboration with sister project @george-project.bsky.social have kicked off a new trial.

Special thanks to @velalab.bsky.social

@horizoneu.bsky.social #REA

Passive acoustic monitoring from profiling floats as a pathway to scalable autonomous observations of global surface wind Abstract. Wind forcing plays a pivotal role in driving upper-ocean physical and biogeochemical processes, yet direct wind observations remain sparse in many regions of the global ocean. While passive ...

Interested in learning more about the advancements in acoustic wind sensors? Read the new article in EGU’s Ocean Science from @ldelaigue.bsky.social et al.: os.copernicus.org/articles/22/...

Graphic from the new paper: "Passive acoustic monitoring from profiling floats as a pathway to scalable autonomous observations of global surface wind"

New paper from TRICUSO colleagues & co-authors on how passive #acoustic #sensors on #biogeochemical profiling #floats can retrieve surface #wind speed from hundreds of meters below the #ocean surface.

os.copernicus.org/articles/22/...

@horizoneu.bsky.social #REA
@sorbonne-universite.fr

Graphic from the new paper: "improved air-sea CO2 flux estimates from sailboat measurements"

New #paper by TRICUSO’s Jacqueline Behncke @geomarkiel.bsky.social & Peter Landschützer @vliz.be demonstrates how integrating #sailboat #data improves estimates of #ocean #carbon uptake

Read the full article, published by @science.org: www.science.org/doi/10.1126/...

@horizoneu.bsky.social #REA

Thanks 🙏🌊

Passive acoustic monitoring from profiling floats as a pathway to scalable autonomous observations of global surface wind Abstract. Wind forcing plays a pivotal role in driving upper-ocean physical and biogeochemical processes, yet direct wind observations remain sparse in many regions of the global ocean. While passive ...

New paper published today! 🎉
Can you “hear” the wind from 1000 m depth? Turns out: yes.
As part of @tricuso.bsky.social and @george-project.bsky.social, we demonstrate passive acoustic wind estimates from BGC-Argo floats, a step toward global, autonomous wind observations. 🌊🎧
doi.org/10.5194/os-2...

Commission seeks feedback on EU ocean policy The European Commission has launched a call for evidence to shape the European Ocean Act, planned for adoption in 2026.

As announced #EUOceanPact, @ec.europa.eu is collecting input to shape its future legislative proposal for a European #OceanAct 🇪🇺🌊📜 - until 09/02

Key features:
🌊🗺️ strengthen #maritimespatialplanning
🔭🛰️ structure 🇪🇺 #OceanObservation governance
🐙🐟🦪🌿 enhance marine protection
✂️🔢 simplify reporting

👇

Leticia Barbero and Denis Pierrot, supported by the NOAA Global Ocean Monitoring and Observing program, are holding a workshop on taking pCO₂ General Oceanics from ships on 10-12 March 2026 in Miami, Florida.

Full details: socat.info/wp-content/u...

🔊New GRL Publication from the Columbia team

'Sensitivity of Ocean Carbon Sink Estimates to Rare Observations' - link here 👉 shorturl.at/YjTl0

Read more from our website👉 shorturl.at/PvLpj
#OC4C

What our missing ocean float revealed about Antartica’s melting glaciers Our ocean float spent years adrift in the Antarctic ocean and beneath massive ice shelves. What it found will help us estimate global sea-level rise.

🌊 Serendipity often drives science forward.

A “lost” Argo float drifted under Antarctica’s ice shelves and resurfaced with a warning: warm water is creeping under major glaciers like Denman and Totten.

What’s at risk? Up to 5 m of global sea-level rise.

theconversation.com/what-our-mis...

Swirly swirly #cartopy #spilhaus #python

Title of the new blog by Lucie Knor. Big questions, great hopes: First impressions from an Early Career Researcher. Accompanied with a profile picture of Lucie Knor in the a TRICUSO-branded compass.

Discover TRICUSO from the perspective of #EarlyCareerResearcher Lucie Knor: her highlights and hopes for the integration of #citizenscience to expand the capacity of #ocean #carbon #observation in the #SouthernOcean 🔍🌊

tricuso.eu/blogs/blog-l...

@geomarkiel.bsky.social
@horizoneu.bsky.social #REA

Dr @ldelaigue.bsky.social from Euro-Argo ERIC member LOV tells you more about the compact passive acoustic sensor newly integrated into a PROVOR CTS5 BGC-ARGO profiler, as part of @george-project.bsky.social.
Read the full article 👇
#Argofloats #OceanScience #BGCfloat

Check out the new blogpost by @george-project.bsky.social on our prototype deployment from earlier this year! Acoustic wind sensing on a profiling float 🌊🕹️

NEW DATE!!

SOCAT QCers, save the date! On 22nd January 2026 we will hold a SOCAT secondary data quality control (QC) hackathon. This will run for 24 hours starting at 00:00 UTC.

Everyone will have the chance to chat and exchange about QC issues while QCing data sets.

www.socat.info/hackathon26

Figure 7Long-term trend G of surface pCO2 from the monthly mappings and the climatology construction (Eq. 1). Areas where the long-term trend is not significant are cross-hatched. In the southern Baltic Sea, a significant increase of +1.4 µatm yr−1 is obtained from the observations. Selected parts of the northern Baltic proper, the Åland Sea, and the Gulf of Finland give a similar increase of +1.5 µatm yr−1, while the western and eastern Gotland Basin show no significant long-term trend.

Henry Bittig et al.* present extrapolated maps of surface ocean CO₂ in the Baltic Sea.

doi.org/10.5194/essd...

#ocean #baltic #co2

*Erik Jacobs, Thomas Neumann, Gregor Rehder

Réchauffement : peut-on réduire le CO2 océanique ?

Face à l’urgence climatique, les techniques d’élimination du CO₂ dissous dans l’océan suscitent espoirs autant qu’inquiétudes. Comment procéder ? Quelles règles se donner ? Qui doit décider ? Les éclairages du biogéochimiste Olivier Sulpis, chargé d’évaluer ces méthodes.

Global Carbon Budget 2025 Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate is critical to bette...

Published today in Earth System Science Data: The Global Carbon Budget 2025
essd.copernicus.org/preprints/es...

YouTube video by National Oceanography Centre Our Vision For The Next Decade

We’re proud to launch our new 10-year strategy: by deepening our knowledge of the ocean, we help every living thing on our planet flourish.

Our focus:
🌎 Climate 🐟Biodiversity 🌪️ Hazards & Pollution 🌊 Sustainable Marine Economy 🧊 Arctic changes.

Watch through our eyes here: 🎬 youtu.be/v6MSq2Qi2Sk