Fabrice Ardhuin
@fabriceardhuin.bsky.social
Earth scientist focusing on wind waves, currents and a few other things.
Reposted by Fabrice Ardhuin
This is the only parody song about geophysical fluid dynamics you’ll ever need:
urldefense.com/v3/__https:/...
urldefense.com/v3/__https:/...
Call Me Charney: A GFD Parody
This was so fun to make!! #lamontdoherty #lamont #atmosphere #science #charney #GFS #vallis #geostrophic #quasigeostrophic #hydrostatic #rossby
urldefense.com
December 12, 2025 at 8:29 PM
This is the only parody song about geophysical fluid dynamics you’ll ever need:
urldefense.com/v3/__https:/...
urldefense.com/v3/__https:/...
Reposted by Fabrice Ardhuin
«Au début, je n’y croyais pas trop» : vieux de 7 000 ans, un mur géant découvert au large de l’île de Sein
«Au début, je n’y croyais pas trop» : vieux de 7 000 ans, un mur géant découvert au large de l’île de Sein
Les scientifiques soulignent que les plus importantes structures mises au jour, remarquées pour la première fois en 2017, «n’ont pas d’équivalent connu en France pour cette période».
www.liberation.fr
December 13, 2025 at 3:42 AM
«Au début, je n’y croyais pas trop» : vieux de 7 000 ans, un mur géant découvert au large de l’île de Sein
Reposted by Fabrice Ardhuin
Want to try an imagine how difficult things could get for us in the EU? (Or elsewhere?) You don't even have to try hard.
If you are responsible for planning, running, maintaining or procuring IT infrastructure of any kind for any organisation, this is essential reading.
ecfr.eu/publication/...
If you are responsible for planning, running, maintaining or procuring IT infrastructure of any kind for any organisation, this is essential reading.
ecfr.eu/publication/...
Get over your X: A European plan to escape American technology
Foreign technology companies cannot be entrusted with meeting Europe’s growing digital needs. This includes American big tech firms. Here’s what Europeans should do…
ecfr.eu
December 11, 2025 at 5:14 PM
Want to try an imagine how difficult things could get for us in the EU? (Or elsewhere?) You don't even have to try hard.
If you are responsible for planning, running, maintaining or procuring IT infrastructure of any kind for any organisation, this is essential reading.
ecfr.eu/publication/...
If you are responsible for planning, running, maintaining or procuring IT infrastructure of any kind for any organisation, this is essential reading.
ecfr.eu/publication/...
Reposted by Fabrice Ardhuin
Scientists Thought Parkinson’s Was in Our Genes. It Might Be in the Water
New ideas about chronic illness could revolutionize treatment, if we take the research seriously.
archive.ph/9KrlB
Wired©️
The Adulteration and Degradation of the Food Supply
tinyurl.com/msza244w
New ideas about chronic illness could revolutionize treatment, if we take the research seriously.
archive.ph/9KrlB
Wired©️
The Adulteration and Degradation of the Food Supply
tinyurl.com/msza244w
December 10, 2025 at 10:23 PM
Scientists Thought Parkinson’s Was in Our Genes. It Might Be in the Water
New ideas about chronic illness could revolutionize treatment, if we take the research seriously.
archive.ph/9KrlB
Wired©️
The Adulteration and Degradation of the Food Supply
tinyurl.com/msza244w
New ideas about chronic illness could revolutionize treatment, if we take the research seriously.
archive.ph/9KrlB
Wired©️
The Adulteration and Degradation of the Food Supply
tinyurl.com/msza244w
Did anybody try that on old seismograms? @sismolise.bsky.social
Also - a new discussion paper by Malte Rehbein about using AI tools to read pen charts of historical river levels: essd.copernicus.org/preprints/es...
Reconstructing Nineteenth-Century River Water Levels with Transformer-Based Computer Vision
Abstract. We convert nineteenth-century Bavarian Danube gauge charts (1826–1894) into daily water-level series referenced to gauge zero through a novel semi-automated workflow combining light document...
essd.copernicus.org
December 8, 2025 at 3:55 PM
Did anybody try that on old seismograms? @sismolise.bsky.social
And all that amazing equatorial current system is barely measured ...
December 8, 2025 at 7:07 AM
And all that amazing equatorial current system is barely measured ...
La mortalité est plus faible pour les vaccinés. "La pandémie de Covid-19 avait causé 7 millions de morts dans le monde, dont 170 000 en France. Combien d’entre eux, à l’instar des frères Bogdanoff, sont morts d’avoir placé leur confiance dans des charlatans criminels «vus à la télé» ?"
Vaccin contre le Covid : l’étude révolutionnaire qui enterre définitivement les accusations des antivax
Vaccin contre le Covid : l’étude révolutionnaire qui enterre définitivement les accusations des antivax
Cinq ans après le début de la vaccination Covid, une étude de grande ampleur compare la mortalité à long terme des vaccinés et non vaccinés. Christian Lehmann, médecin et écrivain, tient la chronique d’une société touchée par les crises.
www.liberation.fr
December 5, 2025 at 12:04 PM
La mortalité est plus faible pour les vaccinés. "La pandémie de Covid-19 avait causé 7 millions de morts dans le monde, dont 170 000 en France. Combien d’entre eux, à l’instar des frères Bogdanoff, sont morts d’avoir placé leur confiance dans des charlatans criminels «vus à la télé» ?"
Reposted by Fabrice Ardhuin
TIL: Someone found piece of the asteroid that killed the dinosaurs in a sediment core from the middle of the Pacific Ocean.
Kyte, F. A meteorite from the Cretaceous/Tertiary boundary. Nature 396, 237–239 (1998). doi.org/10.1038/24322
🌠💥💣
Kyte, F. A meteorite from the Cretaceous/Tertiary boundary. Nature 396, 237–239 (1998). doi.org/10.1038/24322
🌠💥💣
A meteorite from the Cretaceous/Tertiary boundary - Nature
Nature - A meteorite from the Cretaceous/Tertiary boundary
doi.org
December 4, 2025 at 8:49 PM
TIL: Someone found piece of the asteroid that killed the dinosaurs in a sediment core from the middle of the Pacific Ocean.
Kyte, F. A meteorite from the Cretaceous/Tertiary boundary. Nature 396, 237–239 (1998). doi.org/10.1038/24322
🌠💥💣
Kyte, F. A meteorite from the Cretaceous/Tertiary boundary. Nature 396, 237–239 (1998). doi.org/10.1038/24322
🌠💥💣
Reposted by Fabrice Ardhuin
December 4, 2025 at 3:09 PM
Reposted by Fabrice Ardhuin
Using satellite observations and the reanalysis of datasets, @istaresearch.bsky.social researchers have successfully identified a previously unknown cyclic climate pattern.
Learn more about tropics-wide intraseasonal oscillation (TWISO): https://bit.ly/4ovvLzm
Learn more about tropics-wide intraseasonal oscillation (TWISO): https://bit.ly/4ovvLzm
Hidden in Plain Sight
Tropical cyclones can unleash extensive devastation, as recent storms that swept over Jamaica and the Philippines made unmistakably clear. Accurate weather forecasts that buy more time to prepare are ...
bit.ly
December 4, 2025 at 3:52 PM
Using satellite observations and the reanalysis of datasets, @istaresearch.bsky.social researchers have successfully identified a previously unknown cyclic climate pattern.
Learn more about tropics-wide intraseasonal oscillation (TWISO): https://bit.ly/4ovvLzm
Learn more about tropics-wide intraseasonal oscillation (TWISO): https://bit.ly/4ovvLzm
Reposted by Fabrice Ardhuin
🌟OPEN ACCESS🌟📣PRESS RELEASE📣SWOT Satellite Altimetry Observations and Source Model for the Tsunami from the 2025 M 8.8 Kamchatka Earthquake #TSR ⚒️
Press Release: www.seismosoc.org/news/tsunami...
Paper: pubs.geoscienceworld.org/ssa/tsr/arti...
Press Release: www.seismosoc.org/news/tsunami...
Paper: pubs.geoscienceworld.org/ssa/tsr/arti...
December 2, 2025 at 2:01 PM
🌟OPEN ACCESS🌟📣PRESS RELEASE📣SWOT Satellite Altimetry Observations and Source Model for the Tsunami from the 2025 M 8.8 Kamchatka Earthquake #TSR ⚒️
Press Release: www.seismosoc.org/news/tsunami...
Paper: pubs.geoscienceworld.org/ssa/tsr/arti...
Press Release: www.seismosoc.org/news/tsunami...
Paper: pubs.geoscienceworld.org/ssa/tsr/arti...
Reposted by Fabrice Ardhuin
I hope someone draws this wonderful story about Tom Stoppard's Arcadia and the power of the arts to help us see things differently, to the attention of our Education Secretary. Do read it, it will lift your spirits.
December 2, 2025 at 10:59 AM
I hope someone draws this wonderful story about Tom Stoppard's Arcadia and the power of the arts to help us see things differently, to the attention of our Education Secretary. Do read it, it will lift your spirits.
Reposted by Fabrice Ardhuin
Mozambique: Le Royaume-Uni se retire d'un vaste projet gazier de TotalEnergie dans le pays
Mozambique: Le Royaume-Uni se retire d'un vaste projet gazier de TotalEnergie dans le pays
Le gouvernement britannique retire ses financements du projet GNL Mozambique. Une mauvaise nouvelle de plus pour le controversé projet de gaz naturel liquéfié porté par TotalEnergies. C'est un prêt d'un peu plus d'un milliard de dollars qui ne sera pas versé. Trop risqué, a estimé le gouvernement britannique ce 1ᵉʳ décembre.
rfi.my
December 2, 2025 at 3:58 AM
Mozambique: Le Royaume-Uni se retire d'un vaste projet gazier de TotalEnergie dans le pays
The SWOT satellite is a treasure trove of new things, including maps of wave heights.
In Situ Validation of Small‐Scale Spatial Variability in Significant Wave Height Observations From SWOT - Ho - 2025 - Earth and Space Science - Wiley Online Library agupubs.onlinelibrary.wiley.com/doi/10.1029/...
In Situ Validation of Small‐Scale Spatial Variability in Significant Wave Height Observations From SWOT - Ho - 2025 - Earth and Space Science - Wiley Online Library agupubs.onlinelibrary.wiley.com/doi/10.1029/...
In Situ Validation of Small‐Scale Spatial Variability in Significant Wave Height Observations From SWOT
SWOT KaRIn observes significant wave height with root mean square error between 10 and 17 cm against in situ wave measurements SWOT accurately captures small-scale spatial gradients in significan...
agupubs.onlinelibrary.wiley.com
December 1, 2025 at 12:52 PM
The SWOT satellite is a treasure trove of new things, including maps of wave heights.
In Situ Validation of Small‐Scale Spatial Variability in Significant Wave Height Observations From SWOT - Ho - 2025 - Earth and Space Science - Wiley Online Library agupubs.onlinelibrary.wiley.com/doi/10.1029/...
In Situ Validation of Small‐Scale Spatial Variability in Significant Wave Height Observations From SWOT - Ho - 2025 - Earth and Space Science - Wiley Online Library agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Reposted by Fabrice Ardhuin
Key electricity generation points for Q3 2025: The increase in renewable generation in China exceeded that of the rest of the work combined. The drop in Fossil Fuel use in China and India exceeded the increase in Fossil Fuel use for the rest of the world! 🧪🔌💡☀️💨💧🔋
November 30, 2025 at 2:01 AM
Key electricity generation points for Q3 2025: The increase in renewable generation in China exceeded that of the rest of the work combined. The drop in Fossil Fuel use in China and India exceeded the increase in Fossil Fuel use for the rest of the world! 🧪🔌💡☀️💨💧🔋
Reposted by Fabrice Ardhuin
What’s it like doing fieldwork in Antarctica? 🥶 Sarah Shackleton and @blueicedude.bsky.social from @princeton.edu can answer that.
They just found a 6-million-year-old ice core—a key piece to improve our current climate models!
My story for @eos.org
eos.org/articles/new...
They just found a 6-million-year-old ice core—a key piece to improve our current climate models!
My story for @eos.org
eos.org/articles/new...
New Lessons from Old Ice: How We Understand Past (and Future) Heating - Eos
Fragments of blue ice up to 6 million years old—the oldest ever found—offer key insights into Earth’s warming cycles. Researchers are using these ancient data to refine models of our future climate.
eos.org
November 25, 2025 at 9:49 PM
What’s it like doing fieldwork in Antarctica? 🥶 Sarah Shackleton and @blueicedude.bsky.social from @princeton.edu can answer that.
They just found a 6-million-year-old ice core—a key piece to improve our current climate models!
My story for @eos.org
eos.org/articles/new...
They just found a 6-million-year-old ice core—a key piece to improve our current climate models!
My story for @eos.org
eos.org/articles/new...
Reposted by Fabrice Ardhuin
Storm naming is a public safety tool that makes severe weather easier to remember, talk about and follow.
Met Office Head of Warnings and Guidance Holly Clements spoke to @carbonbrief.org all about it ⬇️
Met Office Head of Warnings and Guidance Holly Clements spoke to @carbonbrief.org all about it ⬇️
NEW – Met Office: Ten years of naming UK storms to warn the public | Holly Clements @metoffice.gov.uk
Read here ⬇️
Read here ⬇️
Met Office: Ten years of naming UK storms to warn the public - Carbon Brief
Storm naming is a public safety tool that makes severe weather easier to remember, talk about and follow.
www.carbonbrief.org
November 24, 2025 at 1:32 PM
Storm naming is a public safety tool that makes severe weather easier to remember, talk about and follow.
Met Office Head of Warnings and Guidance Holly Clements spoke to @carbonbrief.org all about it ⬇️
Met Office Head of Warnings and Guidance Holly Clements spoke to @carbonbrief.org all about it ⬇️
Reposted by Fabrice Ardhuin
[1/8] Les travaux du BRGM et de l’université de Neuchâtel sur la source sous-marine de la Vise, au pied de l’étang de Thau, expliquent comment cet aquifère karstique stratégique s’inverse par intrusion saline lors de coups de vent et de sécheresse. #geography #geosciences
Comment préserver la réserve d’eau douce sous l’étang de Thau
A huit reprises depuis les années 1960, de l’eau salée s’est infiltrée dans la source sous-marine de la Vise, contaminant l’aquifère karstique exploité par plusieurs localités.
www.lemonde.fr
November 22, 2025 at 7:09 AM
[1/8] Les travaux du BRGM et de l’université de Neuchâtel sur la source sous-marine de la Vise, au pied de l’étang de Thau, expliquent comment cet aquifère karstique stratégique s’inverse par intrusion saline lors de coups de vent et de sécheresse. #geography #geosciences
Reposted by Fabrice Ardhuin
En CPGE, à la fac, on distribue souvent des supports très structurés. Mais une question reste peu discutée :
👉 quels “blancs” laisse-t-on aux étudiants ?
Pas des trous au hasard, mais des espaces pour réfléchir, conjecturer, s’approprier. Les “blancs” sont une véritable décision pédagogique.
👉 quels “blancs” laisse-t-on aux étudiants ?
Pas des trous au hasard, mais des espaces pour réfléchir, conjecturer, s’approprier. Les “blancs” sont une véritable décision pédagogique.
Facilitating note-taking with guided notes – students’ preferences regarding positions for blanks and preprinted parts
In traditional mathematics lectures given on the board, students are often busy taking notes and have trouble listening to the instructor simultaneously. One approach to address this problem is the...
www.tandfonline.com
November 22, 2025 at 7:38 AM
En CPGE, à la fac, on distribue souvent des supports très structurés. Mais une question reste peu discutée :
👉 quels “blancs” laisse-t-on aux étudiants ?
Pas des trous au hasard, mais des espaces pour réfléchir, conjecturer, s’approprier. Les “blancs” sont une véritable décision pédagogique.
👉 quels “blancs” laisse-t-on aux étudiants ?
Pas des trous au hasard, mais des espaces pour réfléchir, conjecturer, s’approprier. Les “blancs” sont une véritable décision pédagogique.
Reposted by Fabrice Ardhuin
Even small meteorite impacts can be destructive, say Kaali impact on Saaremaa Island, Estonia impact.uwo.ca/impact-crate.... Estimated impact 5-20 kilotons of TNT !
More info, Losiak et al (2016), DOI: 10.1111/maps.12616
Here is hillshade of Estonian Land Board 5m LIDAR showing clear crater rim.
More info, Losiak et al (2016), DOI: 10.1111/maps.12616
Here is hillshade of Estonian Land Board 5m LIDAR showing clear crater rim.
November 22, 2025 at 7:50 AM
Even small meteorite impacts can be destructive, say Kaali impact on Saaremaa Island, Estonia impact.uwo.ca/impact-crate.... Estimated impact 5-20 kilotons of TNT !
More info, Losiak et al (2016), DOI: 10.1111/maps.12616
Here is hillshade of Estonian Land Board 5m LIDAR showing clear crater rim.
More info, Losiak et al (2016), DOI: 10.1111/maps.12616
Here is hillshade of Estonian Land Board 5m LIDAR showing clear crater rim.
Reposted by Fabrice Ardhuin
📢 New paper on the impacts of AMOC collapse on European hydroclimate. 🌊
We find an AMOC collapse would exacerbate drought conditions across Europe, linked to reduced precipitation. In combination with climate change droughts are expected to become more frequent and severe.
doi.org/10.5194/hess...
We find an AMOC collapse would exacerbate drought conditions across Europe, linked to reduced precipitation. In combination with climate change droughts are expected to become more frequent and severe.
doi.org/10.5194/hess...
Changing European hydroclimate under a collapsed AMOC in the Community Earth System Model
Abstract. The Atlantic Meridional Overturning Circulation (AMOC) is expected to weaken or even collapse under anthropogenic climate change. Given the importance of the AMOC in the present-day climate,...
doi.org
November 21, 2025 at 2:41 PM
📢 New paper on the impacts of AMOC collapse on European hydroclimate. 🌊
We find an AMOC collapse would exacerbate drought conditions across Europe, linked to reduced precipitation. In combination with climate change droughts are expected to become more frequent and severe.
doi.org/10.5194/hess...
We find an AMOC collapse would exacerbate drought conditions across Europe, linked to reduced precipitation. In combination with climate change droughts are expected to become more frequent and severe.
doi.org/10.5194/hess...
Reposted by Fabrice Ardhuin
🌊🧵 1/ Vanderford Glacier, holding more than half-a-metre of global sea level rise, is retreating faster than any other in East #Antarctica (18.6 km of grounding line retreat 1996-2020!) It’s one of a number of glaciers in Vincennes Bay melted by deep warm water getting underneath.
📸 P. Harmsen/AAD
📸 P. Harmsen/AAD
November 21, 2025 at 4:22 AM
🌊🧵 1/ Vanderford Glacier, holding more than half-a-metre of global sea level rise, is retreating faster than any other in East #Antarctica (18.6 km of grounding line retreat 1996-2020!) It’s one of a number of glaciers in Vincennes Bay melted by deep warm water getting underneath.
📸 P. Harmsen/AAD
📸 P. Harmsen/AAD
Reposted by Fabrice Ardhuin
Hurricane Melissa produced the fastest hurricane winds to be recorded by a dropsonde, verified by reviewing data at NSF NCAR! Hurricane Melissa’s 252 mph wind gust surpassed the previous record from Typhoon Megi over the Western Pacific in 2010, where a dropsonde measured wind gusts of 248 mph.
November 19, 2025 at 5:37 PM
Hurricane Melissa produced the fastest hurricane winds to be recorded by a dropsonde, verified by reviewing data at NSF NCAR! Hurricane Melissa’s 252 mph wind gust surpassed the previous record from Typhoon Megi over the Western Pacific in 2010, where a dropsonde measured wind gusts of 248 mph.
Reposted by Fabrice Ardhuin
The rare & beautiful violet sea snail - a predator of Portuguese Man O’War & by-the-wind sailors. It lives its whole life at the surface of the open ocean, using a bubble raft to stay afloat. It’s normally more common in warmer waters but occasionally seen here
#marinebiology #marinelife #oceanlife
#marinebiology #marinelife #oceanlife
November 17, 2025 at 7:03 PM
The rare & beautiful violet sea snail - a predator of Portuguese Man O’War & by-the-wind sailors. It lives its whole life at the surface of the open ocean, using a bubble raft to stay afloat. It’s normally more common in warmer waters but occasionally seen here
#marinebiology #marinelife #oceanlife
#marinebiology #marinelife #oceanlife
Reposted by Fabrice Ardhuin
Cap-Vert, Maurice et Seychelles «premiers pays d’Afrique subsaharienne» à avoir éliminé rougeole et rubéole
Cap-Vert, Maurice et Seychelles «premiers pays d’Afrique subsaharienne» à avoir éliminé rougeole et rubéole
L’Organisation mondiale de la santé (OMS) a affirmé le 17 novembre 2025 que le Cap-Vert, Maurice et les Seychelles sont les « premiers pays d’Afrique subsaharienne à franchir cette étape historique » : éliminer la rougeole et la rubéole.
www.rfi.fr
November 18, 2025 at 10:34 AM
Cap-Vert, Maurice et Seychelles «premiers pays d’Afrique subsaharienne» à avoir éliminé rougeole et rubéole