Louise Delaigue
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ldelaigue.bsky.social
Louise Delaigue
@ldelaigue.bsky.social
1.2K followers 530 following 95 posts
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
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ldelaigue.bsky.social
Louise Delaigue @ldelaigue.bsky.social · Aug 20
🌊🤿 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
tricuso.bsky.social
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.
December 4, 2025 at 8:02 AM
Reposted by Louise Delaigue
euro-argo.eu
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.bsky.social GEORGE project @george-project.bsky.social · 2d
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
ldelaigue.bsky.social
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.bsky.social GEORGE project @george-project.bsky.social · 2d
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
socatco2.bsky.social
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
socatco2.bsky.social
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.
December 1, 2025 at 12:47 PM
Reposted by Louise Delaigue
cnrs.fr
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
pfriedling.bsky.social
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
noc.ac.uk
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
tricuso.bsky.social
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
ldelaigue.bsky.social
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
ldelaigue.bsky.social
🌊 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
usclivar.bsky.social
🌊 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
markinchina.bsky.social
#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
gauteh.bsky.social
Surface waves & acoustic waves! Starting new projects... #audiomoth 🧪🌊
October 31, 2025 at 7:04 PM
ldelaigue.bsky.social
🚨 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...
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...
chemrxiv.org
October 31, 2025 at 12:05 PM
ldelaigue.bsky.social
Postdoc update: learning how to say “I don’t know” in increasingly professional ways.
October 30, 2025 at 1:45 PM
Reposted by Louise Delaigue
umsonst.bsky.social
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
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 ...
eos.org
October 27, 2025 at 5:43 PM
Reposted by Louise Delaigue
socatco2.bsky.social
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.
October 27, 2025 at 10:14 AM
ldelaigue.bsky.social
Today I entered the “maybe if I never finish it, it can never be rejected” phase of academic optimism.
October 24, 2025 at 11:48 AM
Reposted by Louise Delaigue
tricuso.bsky.social
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.
October 22, 2025 at 10:40 AM
Reposted by Louise Delaigue
sulpis.bsky.social
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...
Sujet de M2_MANGO2026.pdf
Nuage - le Nuage de l'OSU Pytheas
nuage.osupytheas.fr
October 14, 2025 at 6:14 AM
ldelaigue.bsky.social
Off duty, but surrounded by data points 🐟🪼
October 19, 2025 at 6:33 PM
ldelaigue.bsky.social
60m deep and the Med Sea doesn’t get enough credit, like ever

🤿🎥 Alex buddy
October 17, 2025 at 4:10 PM
ldelaigue.bsky.social
🚀 New preprint alert!

As part of the @tricuso.bsky.social project, we deployed a profiling float equipped with a passive acoustic sensor and showed that wind speed can be retrieved from subsurface ambient noise with good agreement to buoy observations.
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 ...
egusphere.copernicus.org
October 14, 2025 at 1:13 PM
Reposted by Louise Delaigue
tricuso.bsky.social
#Register now for the joint #webinar of TRICUSO and @oceanicu.bsky.social where we will be unpacking the #IPCC: tricuso.eu/tricuso-ocea...

Stephanie Henson |@noc.ac.uk
@altagliabue.bsky.social |@liverpooluni.bsky.social
Peter Landschützer |@vliz.be
Sandy Thomalla |CSIR

@horizoneu.bsky.social #REA
IPCC: What is it all about? Register now for our first joint project webinar! Thursday, 6th of November at 2 pm CET. With panellists Stephanie Henson from NOC, Alessandro Tagliabue from the University of Liverpool, Peter Landschützer from VLIZ and Sandy Thomalla from CSIR
October 13, 2025 at 7:24 AM