Louise Delaigue
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ldelaigue.bsky.social
Louise Delaigue
@ldelaigue.bsky.social
Postdoctoral oceanographer studying the ocean carbon sink 🦈🤿🕹️

🏠 @imev-mer.fr (CNRS-Sorbonne Université) as part of the Horizon Europe @tricuso.bsky.social project

💻 https://louisedelaigue.owlstown.net/
🚀 http://bit.ly/3HWFD5I
Pinned
🌊🤿 I’m Louise, I study how rising anthropogenic CO₂ impacts the ocean’s carbon cycle. My focus is on the marine biological carbon pump and the ocean’s carbon sink.

I recently gave a TEDx talk on deploying robots in the Antarctic Ocean to better constrain the ocean carbon sink 🕹️ youtu.be/mPi08_HC6cg
Reposted by Louise Delaigue
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
January 26, 2026 at 1:38 PM
Reposted by Louise Delaigue
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
January 21, 2026 at 10:20 AM
Reposted by Louise Delaigue
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
January 21, 2026 at 4:40 PM
Reposted by Louise Delaigue
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
January 14, 2026 at 11:11 AM
Reposted by Louise Delaigue
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
January 13, 2026 at 10:20 AM
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
January 13, 2026 at 6:19 AM
Reposted by Louise Delaigue
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
January 12, 2026 at 1:39 PM
Reposted by Louise Delaigue
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
January 5, 2026 at 1:13 PM
Reposted by Louise Delaigue
🔊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
December 18, 2025 at 2:56 PM
Reposted by Louise Delaigue
🌊 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
December 6, 2025 at 5:56 AM
Reposted by Louise Delaigue
Swirly swirly #cartopy #spilhaus #python
December 7, 2025 at 7:33 AM
Reposted by Louise Delaigue
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
December 4, 2025 at 8:02 AM
Reposted by Louise Delaigue
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 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
December 3, 2025 at 1:10 PM
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 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
December 3, 2025 at 8:56 AM
Reposted by Louise Delaigue
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
QC Hackathon 22nd January 2026 – Surface Ocean CO₂ Atlas
www.socat.info
December 3, 2025 at 7:57 AM
Reposted by Louise Delaigue
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
December 1, 2025 at 12:47 PM
Reposted by Louise Delaigue
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.
Réchauffement : peut-on réduire le CO2 océanique ?
lejournal.cnrs.fr
November 17, 2025 at 9:10 AM
Reposted by Louise Delaigue
Published today in Earth System Science Data: The Global Carbon Budget 2025
essd.copernicus.org/preprints/es...
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...
essd.copernicus.org
November 13, 2025 at 3:07 PM
Reposted by Louise Delaigue
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
Our Vision For The Next Decade
YouTube video by National Oceanography Centre
youtu.be
November 4, 2025 at 3:30 PM
Reposted by Louise Delaigue
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
www.youtube.com
November 13, 2025 at 12:24 PM
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...
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...
washington.zoom.us
November 12, 2025 at 9:55 AM
🌊 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...
November 7, 2025 at 4:35 PM
Reposted by Louise Delaigue
🌊 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
Webinars | US CLIVAR
usclivar.org
November 7, 2025 at 4:29 PM
Reposted by Louise Delaigue
#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
November 1, 2025 at 9:56 AM
Reposted by Louise Delaigue
Surface waves & acoustic waves! Starting new projects... #audiomoth 🧪🌊
October 31, 2025 at 7:04 PM