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Louise Delaigue

@ldelaigue.bsky.social
1.3K followers 530 following 107 posts

Postdoctoral oceanographer studying the ocean carbon sink 🦈🤿🕹️ 🏠 @imev-mer.fr (CNRS-Sorbonne Université) as part of the Horizon Europe @tricuso.bsky.social project 💻 louisedelaigue.owlstown.net 🚀 bit.ly/3HWFD5I

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Reposted by Louise Delaigue
Euro-Argo ERIC @euro-argo.eu · 04/09/2026
In July, @george-project.bsky.social joined the 𝟮𝟬𝟮𝟲 𝗠𝗢𝗢𝗦𝗘_𝗚𝗘 𝗰𝗮𝗺𝗽𝗮𝗶𝗴𝗻 in the Med. Sea. A prototype coastal ARVOR-C & 2 BGC #Argofloats were deployed to extend autonomous obs of the Mediterranean & support GEORGE’s work on the ocean carbon system. 👉 www.euro-argo.eu/News-Meeting...
euro-argo.eu
Three Argo floats dive into GEORGE’s second Mediterranean demo mission
European contribution to Argo programme
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TRICUSO @tricuso.bsky.social · 19/08/2026
🔜 Volume 5 of our #newsletter TRICUSO Currents is sailing your way! Don’t miss out and #subscribe today: 📩 tricuso.eu/tricuso-news... @horizoneu.bsky.social #REA
Join our newsletter and stay ahead on stories on milestones reached, latest project updates and event announcements. Subscribe today via the QR code.
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TRICUSO @tricuso.bsky.social · 23/07/2026
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
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Ken Johnson @montereyken.bsky.social · 06/05/2026
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.
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Louise Delaigue @ldelaigue.bsky.social · 02/05/2026
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? 🌊🤿
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Louise Delaigue @ldelaigue.bsky.social · 28/04/2026
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 🤖
essopenarchive.org
The Southern Ocean CO2 sink in an evolving observing system | ESS Open Archive
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Louise Delaigue @ldelaigue.bsky.social · 29/03/2026
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
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Louise Delaigue @ldelaigue.bsky.social · 24/02/2026
#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 🌊
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Louise Delaigue @ldelaigue.bsky.social · 23/02/2026
Don’t forget, our first #OSM26 SOCONET Townhall is today at 12:45 in Hall 3. Come share your thoughts with us! 🌊
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Louise Delaigue @ldelaigue.bsky.social · 22/02/2026
@pablotrucco.bsky.social can’t wait to see you! You all, come see our #OSM26 session on Tuesday morning 🌊❄️
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Louise Delaigue @ldelaigue.bsky.social · 22/02/2026
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” 😎
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Louise Delaigue @ldelaigue.bsky.social · 19/02/2026
Super "pumped" for #OSM26 next week in Glasgow 🌊 let's chat!
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Reposted by Louise Delaigue
GEORGE project @george-project.bsky.social · 11/02/2026
🌊 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)
pubs.acs.org
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...
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GEORGE project @george-project.bsky.social · 11/02/2026
🔬 @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)
os.copernicus.org
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 ...
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GEORGE project @george-project.bsky.social · 11/02/2026
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)
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Louise Delaigue @ldelaigue.bsky.social · 04/02/2026
Goooooold 🔥
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OceanCarbon4Climate @oc4c.bsky.social · 26/01/2026
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/...
essd.copernicus.org
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...
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Reposted by Louise Delaigue
TRICUSO @tricuso.bsky.social · 21/01/2026
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
A winder-equipped float being towed by a ship, with the text reading 'Testing acoustic wind sensors for Southern Ocean deployment'.
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TRICUSO @tricuso.bsky.social · 21/01/2026
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/...
os.copernicus.org
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 ...
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TRICUSO @tricuso.bsky.social · 14/01/2026
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: "Passive acoustic monitoring from profiling floats as a pathway to scalable autonomous observations of global surface wind"
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TRICUSO @tricuso.bsky.social · 13/01/2026
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
Graphic from the new paper: "improved air-sea CO2 flux estimates from sailboat measurements"
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Louise Delaigue @ldelaigue.bsky.social · 13/01/2026
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...
doi.org
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 ...
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Felix Leinemann @felixleinemann.eurosky.social · 12/01/2026
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 👇
oceans-and-fisheries.ec.europa.eu
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.
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Reposted by Louise Delaigue
Surface Ocean CO₂ Atlas @socatco2.bsky.social · 05/01/2026
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...
socat.info
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OceanCarbon4Climate @oc4c.bsky.social · 18/12/2025
🔊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
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Prof Ian Hall @ianhall.bsky.social · 06/12/2025
🌊 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...
theconversation.com
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.
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Julian Mak @jmak1020.bsky.social · 07/12/2025
Swirly swirly #cartopy #spilhaus #python
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TRICUSO @tricuso.bsky.social · 04/12/2025
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
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.
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Euro-Argo ERIC @euro-argo.eu · 03/12/2025
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
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Louise Delaigue @ldelaigue.bsky.social · 03/12/2025
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 🌊🕹️
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Surface Ocean CO₂ Atlas @socatco2.bsky.social · 03/12/2025
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
socat.info
QC Hackathon 22nd January 2026 – Surface Ocean CO₂ Atlas
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Surface Ocean CO₂ Atlas @socatco2.bsky.social · 01/12/2025
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
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.
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CNRS @cnrs.fr · 17/11/2025
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.
lejournal.cnrs.fr
Réchauffement : peut-on réduire le CO2 océanique ?
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Pierre Friedlingstein @pfriedling.bsky.social · 13/11/2025
Published today in Earth System Science Data: The Global Carbon Budget 2025 essd.copernicus.org/preprints/es...
essd.copernicus.org
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...
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National Oceanography Centre @noc.ac.uk · 04/11/2025
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
youtu.be
Our Vision For The Next Decade
YouTube video by National Oceanography Centre
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TRICUSO @tricuso.bsky.social · 13/11/2025
The #recording of the joint OceanICU-TRICUSO #webinar is now available! With #COP30 #Brazil underway, why not take this opportunity to hear directly from #IPCC authors? 👉 www.youtube.com/watch?v=4iwj... @oceanicu.bsky.social @cop30brazil.bsky.social @ipcc.bsky.social @horizoneu.bsky.social #REA
youtube.com
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Louise Delaigue @ldelaigue.bsky.social · 12/11/2025
Today! 🌊 At 16:00 CET (15:00 UTC) I’ll unpack 20 years of shifts in the ocean’s biological carbon pump for the @scor-int.bsky.social WG168 4D-BGC webinar. Join us: washington.zoom.us/meeting/regi...
washington.zoom.us
Welcome! You are invited to join a meeting: 4D-BGC Webinar #5 - Louise Delaigue. After registering, you will receive a confirmation email about joining the meeting.
Presenter: Louise Delaigue (Laboratoire d’Océanographie de Villefranche) Recent advances have improved estimates of marine carbon uptake, but the processes driving spatial and vertical variability in...
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Louise Delaigue @ldelaigue.bsky.social · 07/11/2025
🌊 Feeling the blues of a shifting ocean? Join me next Wednesday, Nov 12 (16:00 CET / 15:00 UTC), for a @scor-int.bsky.social WG168 4D-BGC webinar where I’ll dive into the secret shifts of the ocean’s biological carbon pump in the past two decades 🔗 Register here: washington.zoom.us/meeting/regi...
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US CLIVAR @usclivar.bsky.social · 07/11/2025
🌊 POS Panel Webinar Series: Join us on for a talk by Scott Doney (UVA) on marine carbon dioxide removal (mCDR) methods and what’s needed to ensure their efficacy, safety, and scalability. 📆 Nov 12 at 12pm ET 🔗 usclivar.org/webinars (link in calendar) #mCDR #OceanCarbon
usclivar.org
Webinars | US CLIVAR
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Mark Hopwood @markinchina.bsky.social · 01/11/2025
#AI has changed university education. AI written essays on any topic take minutes and can be quite good. So, I revised all my written assignment formats: Ask all AI engines you use to write an essay on topic X. Critically evaluate which essay is most scientifically accurate. #AcademicChatter
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Gaute Hope @gauteh.bsky.social · 31/10/2025
Surface waves & acoustic waves! Starting new projects... #audiomoth 🧪🌊
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Louise Delaigue @ldelaigue.bsky.social · 31/10/2025
🚨 New preprint alert! 🚨 How does chemistry shape the ocean’s iron cycle? In our new study, we show that the chemical diversity of organic matter controls how iron is stabilized or lost in the subsurface South Pacific Ocean. chemrxiv.org/engage/chemr...
chemrxiv.org
Chemical controls on iron distributions across the subsurface South Pacific Ocean
Iron and nitrogen are the primary nutrients that limit productivity in the ocean. While nitrogen cycling is largely controlled by biology, iron cycling is strongly determined by chemistry because iron...
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Louise Delaigue @ldelaigue.bsky.social · 30/10/2025
Postdoc update: learning how to say “I don’t know” in increasingly professional ways.
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umsonst.bsky.social @umsonst.bsky.social · 27/10/2025
Next worst case: "The Southern Ocean May Be Building Up a Massive Burp" "Results suggest that if anthropogenic emissions decrease and the atmosphere cools, heat stored in the Southern Ocean could be released abruptly in a few hundred years, kicking off a temporary warming period" #climate #Earth
eos.org
The Southern Ocean May Be Building Up a Massive Burp - Eos
Modeled results suggest that if anthropogenic emissions decrease and the atmosphere cools, heat stored in the Southern Ocean could be released abruptly in a few hundred years, kicking off a temporary ...
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Surface Ocean CO₂ Atlas @socatco2.bsky.social · 27/10/2025
Moritz Mathis et al.* explore the mechanisms behind enhanced coastal CO₂ uptake. doi.org/10.1038/s415... #ocean #co2 #coast *Fabrice Lacroix, Stefan Hagemann, David Marcolino Nielsen, Tatiana Ilyina & Corinna Schrum
Fig. 4: Simulated change signal of ocean–atmosphere CO₂ flux during the twentieth century (1991–2010 of hist minus ctrl), shown for the coastal ocean.
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Louise Delaigue @ldelaigue.bsky.social · 24/10/2025
Today I entered the “maybe if I never finish it, it can never be rejected” phase of academic optimism.
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TRICUSO @tricuso.bsky.social · 22/10/2025
TRICUSO’s main objective is to innovate every level of the #Ocean #Carbon #Observation #ValueChain: 🔎 #Measurements 📊 #QualityControl and #DataProducts 🌍 #Mapping and #Modelling 🧐 #ScientificAssessments 📝 #PolicyAdvice Learn more at tricuso.eu/overview/ 💡 @horizoneu.bsky.social #REA
An infographic in a shape of a rounded bottom pyramid, portraying the TRICUSO value chain with information going upwards from measurements, to quality control and data products, to mapping and modelling, then scientific assessments and policy advice as the last step at the top.
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Olivier Sulpis @sulpis.bsky.social · 14/10/2025
Master's internship (6 months) — Mangrove–ocean oxygen dynamics in Senegal 📍 CEREGE (Aix-en-Provence) | 🗓 Start Jan–Mar 2026 | ⏳ Apply by 31 Oct 2025 See flyer: nuage.osupytheas.fr/s/ZGcJtgN6Sm...
nuage.osupytheas.fr
Sujet de M2_MANGO2026.pdf
Nuage - le Nuage de l'OSU Pytheas
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Louise Delaigue @ldelaigue.bsky.social · 19/10/2025
Off duty, but surrounded by data points 🐟🪼
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Louise Delaigue @ldelaigue.bsky.social · 17/10/2025
60m deep and the Med Sea doesn’t get enough credit, like ever 🤿🎥 Alex buddy
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