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
🏠 @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
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
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
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
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.
Reposted by Louise Delaigue
Published today in Earth System Science Data: The Global Carbon Budget 2025
essd.copernicus.org/preprints/es...
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
Published today in Earth System Science Data: The Global Carbon Budget 2025
essd.copernicus.org/preprints/es...
essd.copernicus.org/preprints/es...
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 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
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 focus:
🌎 Climate 🐟Biodiversity 🌪️ Hazards & Pollution 🌊 Sustainable Marine Economy 🧊 Arctic changes.
Watch through our eyes here: 🎬 youtu.be/v6MSq2Qi2Sk
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/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
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/watch?v=4iwj...
@oceanicu.bsky.social
@cop30brazil.bsky.social
@ipcc.bsky.social
@horizoneu.bsky.social #REA
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
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...
🌊 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...
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
🌊 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...
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...
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
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
🌊 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
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
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
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
#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
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
Reposted by Louise Delaigue
Surface waves & acoustic waves! Starting new projects... #audiomoth 🧪🌊
October 31, 2025 at 7:04 PM
Surface waves & acoustic waves! Starting new projects... #audiomoth 🧪🌊
🚨 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...
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
🚨 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...
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...
Postdoc update: learning how to say “I don’t know” in increasingly professional ways.
October 30, 2025 at 1:45 PM
Postdoc update: learning how to say “I don’t know” in increasingly professional ways.
Reposted by Louise Delaigue
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"
"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
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
doi.org/10.1038/s415...
#ocean #co2 #coast
*Fabrice Lacroix, Stefan Hagemann, David Marcolino Nielsen, Tatiana Ilyina & Corinna Schrum
October 27, 2025 at 10:14 AM
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
doi.org/10.1038/s415...
#ocean #co2 #coast
*Fabrice Lacroix, Stefan Hagemann, David Marcolino Nielsen, Tatiana Ilyina & Corinna Schrum
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
Today I entered the “maybe if I never finish it, it can never be rejected” phase of academic optimism.
Reposted by Louise Delaigue
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
🔎 #Measurements
📊 #QualityControl and #DataProducts
🌍 #Mapping and #Modelling
🧐 #ScientificAssessments
📝 #PolicyAdvice
Learn more at tricuso.eu/overview/ 💡
@horizoneu.bsky.social #REA
October 22, 2025 at 10:40 AM
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
🔎 #Measurements
📊 #QualityControl and #DataProducts
🌍 #Mapping and #Modelling
🧐 #ScientificAssessments
📝 #PolicyAdvice
Learn more at tricuso.eu/overview/ 💡
@horizoneu.bsky.social #REA
Reposted by Louise Delaigue
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...
📍 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
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...
📍 CEREGE (Aix-en-Provence) | 🗓 Start Jan–Mar 2026 | ⏳ Apply by 31 Oct 2025
See flyer:
nuage.osupytheas.fr/s/ZGcJtgN6Sm...
Off duty, but surrounded by data points 🐟🪼
October 19, 2025 at 6:33 PM
Off duty, but surrounded by data points 🐟🪼
60m deep and the Med Sea doesn’t get enough credit, like ever
🤿🎥 Alex buddy
🤿🎥 Alex buddy
October 17, 2025 at 4:10 PM
60m deep and the Med Sea doesn’t get enough credit, like ever
🤿🎥 Alex buddy
🤿🎥 Alex buddy
🚀 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.
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
🚀 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.
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.
Reposted by Louise Delaigue
#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
Stephanie Henson |@noc.ac.uk
@altagliabue.bsky.social |@liverpooluni.bsky.social
Peter Landschützer |@vliz.be
Sandy Thomalla |CSIR
@horizoneu.bsky.social #REA
October 13, 2025 at 7:24 AM
#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
Stephanie Henson |@noc.ac.uk
@altagliabue.bsky.social |@liverpooluni.bsky.social
Peter Landschützer |@vliz.be
Sandy Thomalla |CSIR
@horizoneu.bsky.social #REA
Reposted by Louise Delaigue
That’s a wrap on GEORGE Technical Forum II! 💥A week of learning, collaboration & exploring new sensors with 32 participants + 11 experts from 11 countries.
Huge thanks to @vliz.be for hosting & to all training partners for the sessions. See you in 2026 for Technical Forum III!
Huge thanks to @vliz.be for hosting & to all training partners for the sessions. See you in 2026 for Technical Forum III!
October 10, 2025 at 11:51 AM
That’s a wrap on GEORGE Technical Forum II! 💥A week of learning, collaboration & exploring new sensors with 32 participants + 11 experts from 11 countries.
Huge thanks to @vliz.be for hosting & to all training partners for the sessions. See you in 2026 for Technical Forum III!
Huge thanks to @vliz.be for hosting & to all training partners for the sessions. See you in 2026 for Technical Forum III!
Coolest thing ever 🤩
This morning we were introduced to the CaPASOS pCO2 sensor by the @exeter.ac.uk team, and then got to build a lite version ourselves to understand how it works. From bubbling the equilibrator to testing calibration with reference gas! 🫧⚗️
cc @george-project.bsky.social
This morning we were introduced to the CaPASOS pCO2 sensor by the @exeter.ac.uk team, and then got to build a lite version ourselves to understand how it works. From bubbling the equilibrator to testing calibration with reference gas! 🫧⚗️
cc @george-project.bsky.social
October 9, 2025 at 10:55 AM
Coolest thing ever 🤩
This morning we were introduced to the CaPASOS pCO2 sensor by the @exeter.ac.uk team, and then got to build a lite version ourselves to understand how it works. From bubbling the equilibrator to testing calibration with reference gas! 🫧⚗️
cc @george-project.bsky.social
This morning we were introduced to the CaPASOS pCO2 sensor by the @exeter.ac.uk team, and then got to build a lite version ourselves to understand how it works. From bubbling the equilibrator to testing calibration with reference gas! 🫧⚗️
cc @george-project.bsky.social
Morning of Day 3 at the @george-project.bsky.social TF II, we looked at the ClearWater pH sensor and how it’s designed for high-precision autonomous ocean pH measurements 🔥
October 9, 2025 at 6:24 AM
Morning of Day 3 at the @george-project.bsky.social TF II, we looked at the ClearWater pH sensor and how it’s designed for high-precision autonomous ocean pH measurements 🔥
Reposted by Louise Delaigue
Some of our ocean’s most iconic species are vanishing — whale sharks, oceanic whitetip sharks, manta and devil rays.
Join us in calling for action. Sign the petition today: only.one/act/cites-2025
#CITESCoP20 #SaveTheMantas
Join us in calling for action. Sign the petition today: only.one/act/cites-2025
#CITESCoP20 #SaveTheMantas
October 8, 2025 at 12:13 PM
Some of our ocean’s most iconic species are vanishing — whale sharks, oceanic whitetip sharks, manta and devil rays.
Join us in calling for action. Sign the petition today: only.one/act/cites-2025
#CITESCoP20 #SaveTheMantas
Join us in calling for action. Sign the petition today: only.one/act/cites-2025
#CITESCoP20 #SaveTheMantas
🧪 Had a great time tinkering with the HydroC CO₂ sensor setup at the @george-project.bsky.social TF II. So cool to see the internal components and how these systems are engineered for high-precision ocean measurements
October 7, 2025 at 3:13 PM
🧪 Had a great time tinkering with the HydroC CO₂ sensor setup at the @george-project.bsky.social TF II. So cool to see the internal components and how these systems are engineered for high-precision ocean measurements