Celebrating a new #milestone: combining traditional ship-based measurements from #SOCATv2025 with data from #BGC-Argo #floats for a new observation-based #SouthernOcean #carbon sink estimate 🎉 Full story 👇 @ldelaigue.bsky.social @sorbonne-universite.fr @cnrs.fr @vliz.be @horizoneu.bsky.social #REA

A sad day. Jorge Sarmiento, one of the greats in ocean science, passed away today. Jorge was a model leader; thoughtful, compassionate, and an excellent scientist. His leadership of @soccomproject.bsky.social transformed @bgc-argo.bsky.social into a global system.

The Southern Ocean is very impressive, sure. But have you ever locked eyes with a mola mola in the Med Sea on a Saturday morning? 🌊🤿

New preprint out 🌊 As part of @tricuso.bsky.social, we revisit the Southern Ocean CO₂ sink using both ship data (SOCAT) and year-round BGC-Argo floats in the last 20 years 🤖

Always fascinating to see how much personality you can find underwater in the Med Sea — even in 15°C water in March, when your hands are numb 🦞 🎥 Alex P

#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! 🌊

TRICUSO@tricuso.bsky.social · 6mo ago

🌊 Coming up at #OSM26 #TownHall TH13J: The Surface Ocean CO₂ Reference Observing Network ( #SOCONET): Current Status and Future Prospects 💡More information & registration: agu.confex.com/agu/osm26/me... @horizoneu.bsky.social #REA

@pablotrucco.bsky.social can’t wait to see you! You all, come see our #OSM26 session on Tuesday morning 🌊❄️

Pablo Trucco-Pignata@pablotrucco.bsky.social · 5mo ago

On our way to #OceanSciencesMeeting Reviewing the #OSM program on the 🚆 before convening our session on Southern Ocean carbonate chemistry with @ldelaigue.bsky.social and colleagues. Proud to be there representing @tricuso.bsky.social and pushing forward the conversation on SO carbon processes.

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” 😎

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

🌊 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)

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...

pubs.acs.org

🔬 @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)

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 ...

os.copernicus.org

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 🔥

Daniel Sandborn@danielsandborn.bsky.social · 6mo ago

Need an observation-based open-source tool to estimate ocean anthropogenic carbon? - Transit Time Distribution approach - Improved accessibility & flexibility - Updated inventories thru 2500 Our preprint is live! egusphere.copernicus.org/preprints/20... #oceanography #oceancarbon #python

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/...

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...

essd.copernicus.org

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

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/...

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 ...

os.copernicus.org

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

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

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...

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 ...

doi.org

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 👇

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.

oceans-and-fisheries.ec.europa.eu

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

🌊 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...

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.

theconversation.com

Swirly swirly #cartopy #spilhaus #python

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

GEORGE project@george-project.bsky.social · 8mo ago

GEORGE partners nke Instrumentation & LOV have successfully integrated a compact passive acoustic sensor into an Argo float. The work strengthens autonomous ocean observing & ties directly to TRICUSO. Article available from Louise Delaigue et al 2025 (preprint): 👉 https://ow.ly/S9vC50XB7ug

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 🌊🕹️

GEORGE project@george-project.bsky.social · 8mo ago

GEORGE partners nke Instrumentation & LOV have successfully integrated a compact passive acoustic sensor into an Argo float. The work strengthens autonomous ocean observing & ties directly to TRICUSO. Article available from Louise Delaigue et al 2025 (preprint): 👉 https://ow.ly/S9vC50XB7ug

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

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