Marylou Athanase
@marylouathanase.bsky.social
Postdoctoral scientist, Ocean 🌊 and Climate 🌍 research at AWI (Germany). Interested in extreme events & polar regions.
Pinned
The Arctic Beaufort Gyre in CMIP6 Models: Present and Future
CMIP6 models generally simulate a too strong, large, and northward-extending Beaufort Gyre (BG) during the historical period Among the least unrealistic models, most simulations project a decline...
agupubs.onlinelibrary.wiley.com
Our new study is out:
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
Reposted by Marylou Athanase
☀️🌧️ Extreme weather events are increasing 🌀🌤
Our new paper discusses the range of extreme weather attribution methods available and how we should be combining them to improve confidence in our attribution statements
with co-authors: @marylouathanase.bsky.social & Shirin Ermis
doi.org/10.1002/wea....
Our new paper discusses the range of extreme weather attribution methods available and how we should be combining them to improve confidence in our attribution statements
with co-authors: @marylouathanase.bsky.social & Shirin Ermis
doi.org/10.1002/wea....
The need for multi‐method extreme event attribution
Over the past 20 years, extreme event attribution has developed rapidly, providing a wide range of methods to attribute weather events – from unconditioned probabilistic to strongly conditioned story...
rmets.onlinelibrary.wiley.com
November 3, 2025 at 9:32 AM
☀️🌧️ Extreme weather events are increasing 🌀🌤
Our new paper discusses the range of extreme weather attribution methods available and how we should be combining them to improve confidence in our attribution statements
with co-authors: @marylouathanase.bsky.social & Shirin Ermis
doi.org/10.1002/wea....
Our new paper discusses the range of extreme weather attribution methods available and how we should be combining them to improve confidence in our attribution statements
with co-authors: @marylouathanase.bsky.social & Shirin Ermis
doi.org/10.1002/wea....
If you want to learn more about Storylines of Marine Heatwaves, my #OOSC presentation starts today at 16h30 🌊
To celebrate the kick-off of #UNOC3 and #OOSC in Nice, we share a striking, mesmerising perspective on Mediterranean Marine Heatwaves —and their clear amplification by climate change.
From @awi.de storyline simulations, visual by @jawijan.bsky.social
From @awi.de storyline simulations, visual by @jawijan.bsky.social
June 3, 2025 at 7:38 AM
If you want to learn more about Storylines of Marine Heatwaves, my #OOSC presentation starts today at 16h30 🌊
To celebrate the kick-off of #UNOC3 and #OOSC in Nice, we share a striking, mesmerising perspective on Mediterranean Marine Heatwaves —and their clear amplification by climate change.
From @awi.de storyline simulations, visual by @jawijan.bsky.social
From @awi.de storyline simulations, visual by @jawijan.bsky.social
June 3, 2025 at 7:36 AM
To celebrate the kick-off of #UNOC3 and #OOSC in Nice, we share a striking, mesmerising perspective on Mediterranean Marine Heatwaves —and their clear amplification by climate change.
From @awi.de storyline simulations, visual by @jawijan.bsky.social
From @awi.de storyline simulations, visual by @jawijan.bsky.social
A little belated post to share the latest article by Wenqin Zhuo together with our @awi.de team of "storyliners"!
This time investigating cold extremes. Read in @natureportfolio.nature.com:
doi.org/10.1038/s416...
This time investigating cold extremes. Read in @natureportfolio.nature.com:
doi.org/10.1038/s416...
Storylines reveal contrasting thermodynamic effects of climate change on 2020/21 East Asian cold extremes - npj Climate and Atmospheric Science
npj Climate and Atmospheric Science - Storylines reveal contrasting thermodynamic effects of climate change on 2020/21 East Asian cold extremes
doi.org
May 23, 2025 at 1:51 PM
A little belated post to share the latest article by Wenqin Zhuo together with our @awi.de team of "storyliners"!
This time investigating cold extremes. Read in @natureportfolio.nature.com:
doi.org/10.1038/s416...
This time investigating cold extremes. Read in @natureportfolio.nature.com:
doi.org/10.1038/s416...
Our paper on the Arctic Beaufort Gyre in CMIP6 is featured in a spotlight article 🌊
*And* it is now #9 largest score on @altmetric.com of all @jgroceans.bsky.social articles... What a week
Read on @eos.org:
eos.org/research-spo...
W/ @raphaelkoehler.bsky.social and @clnhz.bsky.social
*And* it is now #9 largest score on @altmetric.com of all @jgroceans.bsky.social articles... What a week
Read on @eos.org:
eos.org/research-spo...
W/ @raphaelkoehler.bsky.social and @clnhz.bsky.social
The Uncertain Fate of the Beaufort Gyre - Eos
Climate models produce widely varying predictions for what will happen to this influential ocean current, but most models predict it will weaken or stop.
eos.org
May 15, 2025 at 8:26 AM
Our paper on the Arctic Beaufort Gyre in CMIP6 is featured in a spotlight article 🌊
*And* it is now #9 largest score on @altmetric.com of all @jgroceans.bsky.social articles... What a week
Read on @eos.org:
eos.org/research-spo...
W/ @raphaelkoehler.bsky.social and @clnhz.bsky.social
*And* it is now #9 largest score on @altmetric.com of all @jgroceans.bsky.social articles... What a week
Read on @eos.org:
eos.org/research-spo...
W/ @raphaelkoehler.bsky.social and @clnhz.bsky.social
Reposted by Marylou Athanase
⬆️New research by @marylouathanase.bsky.social & @raphaelkoehler.bsky.social of @awi.de, @clnhz.bsky.social, + colleagues in @jgroceans.bsky.social.
May 13, 2025 at 2:32 PM
⬆️New research by @marylouathanase.bsky.social & @raphaelkoehler.bsky.social of @awi.de, @clnhz.bsky.social, + colleagues in @jgroceans.bsky.social.
Reposted by Marylou Athanase
Climate models offer little clarity on how climate change will affect the Beaufort Gyre, an influential current in the Arctic Ocean. Most predict the current will weaken or even stop, but the timing and impacts of this fate remain uncertain. eos.org/research-spo...
The Uncertain Fate of the Beaufort Gyre - Eos
Climate models produce widely varying predictions for what will happen to this influential ocean current, but most models predict it will weaken or stop.
eos.org
May 13, 2025 at 2:32 PM
Climate models offer little clarity on how climate change will affect the Beaufort Gyre, an influential current in the Arctic Ocean. Most predict the current will weaken or even stop, but the timing and impacts of this fate remain uncertain. eos.org/research-spo...
Reposted by Marylou Athanase
C’est l’un des nombreux bouleversements entraînés par la disparition de la banquise : elle change la couleur des océans Arctique et Antarctique. De quoi entraîner des conséquences « considérables » pour certains organismes marins comme les algues et le phytoplancton www.lemonde.fr/planete/arti...
La fonte de la banquise change la couleur des océans Arctique et Antarctique
En l’absence d’une couche de glace à la surface de l’océan, la lumière qui pénètre les eaux n’est plus la même, ce qui influence le type d’algue et de plancton s’y développant. Une étude publiée dans ...
www.lemonde.fr
May 8, 2025 at 7:24 AM
C’est l’un des nombreux bouleversements entraînés par la disparition de la banquise : elle change la couleur des océans Arctique et Antarctique. De quoi entraîner des conséquences « considérables » pour certains organismes marins comme les algues et le phytoplancton www.lemonde.fr/planete/arti...
If you are attending #EGU25 and interested in the attribution of #climate extremes: consider joining our networking session on Friday noon!
We will exchange on existing methods, their strengths, and how to compare them:
meetingorganizer.copernicus.org/EGU25/sessio...
W/ @vikkithompson.bsky.social
We will exchange on existing methods, their strengths, and how to compare them:
meetingorganizer.copernicus.org/EGU25/sessio...
W/ @vikkithompson.bsky.social
May 2, 2025 at 9:23 AM
Reposted by Marylou Athanase
Coming up soon at #EGU25, come along to chat about event attribution at lunchtime in room 2.43
If you are attending #EGU25 and interested in the attribution of #climate extremes: consider joining our networking session on Friday noon!
We will exchange on existing methods, their strengths, and how to compare them:
meetingorganizer.copernicus.org/EGU25/sessio...
W/ @vikkithompson.bsky.social
We will exchange on existing methods, their strengths, and how to compare them:
meetingorganizer.copernicus.org/EGU25/sessio...
W/ @vikkithompson.bsky.social
May 2, 2025 at 9:19 AM
Coming up soon at #EGU25, come along to chat about event attribution at lunchtime in room 2.43
Reposted by Marylou Athanase
Une nouvelle étude intéressante et qui va au-delà des effets d'annonce.
Le nombre de papier devient conséquent sur le rôle de la variabilité interne.
J’ai pu l’expliquer sur @franceculture.fr merci à @alexandremorales.bsky.social
www.radiofrance.fr/francecultur...
Le nombre de papier devient conséquent sur le rôle de la variabilité interne.
J’ai pu l’expliquer sur @franceculture.fr merci à @alexandremorales.bsky.social
www.radiofrance.fr/francecultur...
April 27, 2025 at 11:29 AM
Une nouvelle étude intéressante et qui va au-delà des effets d'annonce.
Le nombre de papier devient conséquent sur le rôle de la variabilité interne.
J’ai pu l’expliquer sur @franceculture.fr merci à @alexandremorales.bsky.social
www.radiofrance.fr/francecultur...
Le nombre de papier devient conséquent sur le rôle de la variabilité interne.
J’ai pu l’expliquer sur @franceculture.fr merci à @alexandremorales.bsky.social
www.radiofrance.fr/francecultur...
I will be presenting our results at #EGU25 in a poster on Wednesday. 🌀 So if you'd like to chat about the Arctic Beaufort Gyre in CMIP6 models, find me there!
The poster: meetingorganizer.copernicus.org/EGU25/EGU25-...
The paper: agupubs.onlinelibrary.wiley.com/doi/full/10....
The poster: meetingorganizer.copernicus.org/EGU25/EGU25-...
The paper: agupubs.onlinelibrary.wiley.com/doi/full/10....
April 27, 2025 at 8:11 AM
I will be presenting our results at #EGU25 in a poster on Wednesday. 🌀 So if you'd like to chat about the Arctic Beaufort Gyre in CMIP6 models, find me there!
The poster: meetingorganizer.copernicus.org/EGU25/EGU25-...
The paper: agupubs.onlinelibrary.wiley.com/doi/full/10....
The poster: meetingorganizer.copernicus.org/EGU25/EGU25-...
The paper: agupubs.onlinelibrary.wiley.com/doi/full/10....
If you are attending #EGU25 and interested in the attribution of #climate extremes: consider joining our networking session on Friday noon!
We will exchange on existing methods, their strengths, and how to compare them:
meetingorganizer.copernicus.org/EGU25/sessio...
W/ @vikkithompson.bsky.social
We will exchange on existing methods, their strengths, and how to compare them:
meetingorganizer.copernicus.org/EGU25/sessio...
W/ @vikkithompson.bsky.social
April 27, 2025 at 8:06 AM
If you are attending #EGU25 and interested in the attribution of #climate extremes: consider joining our networking session on Friday noon!
We will exchange on existing methods, their strengths, and how to compare them:
meetingorganizer.copernicus.org/EGU25/sessio...
W/ @vikkithompson.bsky.social
We will exchange on existing methods, their strengths, and how to compare them:
meetingorganizer.copernicus.org/EGU25/sessio...
W/ @vikkithompson.bsky.social
Reposted by Marylou Athanase
Are you interested in extreme event attribution and attending #EGU25? Come along to our networking session to discuss the strengths and challenges of different methods.
meetingorganizer.copernicus.org/EGU25/sessio...
@marylouathanase.bsky.social
meetingorganizer.copernicus.org/EGU25/sessio...
@marylouathanase.bsky.social
April 17, 2025 at 8:04 AM
Are you interested in extreme event attribution and attending #EGU25? Come along to our networking session to discuss the strengths and challenges of different methods.
meetingorganizer.copernicus.org/EGU25/sessio...
@marylouathanase.bsky.social
meetingorganizer.copernicus.org/EGU25/sessio...
@marylouathanase.bsky.social
Reposted by Marylou Athanase
Our article is out in @eurogeosciences.bsky.social's GMD journal, on global multi-year kilometre-scale modelling with @ecmwf.bsky.social’s IFS coupled to FESOM2.5 (finer than 5km).
See the paper here: doi.org/10.5194/gmd-...
This is what we found: (🧵1/n)
See the paper here: doi.org/10.5194/gmd-...
This is what we found: (🧵1/n)
Multi-year simulations at kilometre scale with the Integrated Forecasting System coupled to FESOM2.5 and NEMOv3.4
Abstract. We report on the first multi-year kilometre-scale global coupled simulations using ECMWF's Integrated Forecasting System (IFS) coupled to both the NEMO and FESOM ocean–sea ice models, as par...
doi.org
January 10, 2025 at 6:38 PM
Our article is out in @eurogeosciences.bsky.social's GMD journal, on global multi-year kilometre-scale modelling with @ecmwf.bsky.social’s IFS coupled to FESOM2.5 (finer than 5km).
See the paper here: doi.org/10.5194/gmd-...
This is what we found: (🧵1/n)
See the paper here: doi.org/10.5194/gmd-...
This is what we found: (🧵1/n)
Reposted by Marylou Athanase
🆕 from PolarRES' @raphaelkoehler.bsky.social & colleagues on the future of the Beaufort Gyre, a major Arctic Ocean current.
By accumulating/releasing freshwater, it shapes ocean properties.
But most CMIP6 models project it will weaken or vanish, disrupting ocean circulation.
🔗: bit.ly/4cdZo3m
By accumulating/releasing freshwater, it shapes ocean properties.
But most CMIP6 models project it will weaken or vanish, disrupting ocean circulation.
🔗: bit.ly/4cdZo3m
April 1, 2025 at 2:38 PM
🆕 from PolarRES' @raphaelkoehler.bsky.social & colleagues on the future of the Beaufort Gyre, a major Arctic Ocean current.
By accumulating/releasing freshwater, it shapes ocean properties.
But most CMIP6 models project it will weaken or vanish, disrupting ocean circulation.
🔗: bit.ly/4cdZo3m
By accumulating/releasing freshwater, it shapes ocean properties.
But most CMIP6 models project it will weaken or vanish, disrupting ocean circulation.
🔗: bit.ly/4cdZo3m
Reposted by Marylou Athanase
New study led by @marylouathanase.bsky.social and @raphaelkoehler.bsky.social.
As #SeaIce thins, the Beaufort Gyre releases its feshwater out of the #Arctic.
We don't predict the "Day After Tomorrow" but I'm curious about potential impacts on the #AMOC
agupubs.onlinelibrary.wiley.com/doi/full/10....
As #SeaIce thins, the Beaufort Gyre releases its feshwater out of the #Arctic.
We don't predict the "Day After Tomorrow" but I'm curious about potential impacts on the #AMOC
agupubs.onlinelibrary.wiley.com/doi/full/10....
The Arctic Beaufort Gyre in CMIP6 Models: Present and Future
CMIP6 models generally simulate a too strong, large, and northward-extending Beaufort Gyre (BG) during the historical period Among the least unrealistic models, most simulations project a decline...
agupubs.onlinelibrary.wiley.com
April 1, 2025 at 11:01 AM
New study led by @marylouathanase.bsky.social and @raphaelkoehler.bsky.social.
As #SeaIce thins, the Beaufort Gyre releases its feshwater out of the #Arctic.
We don't predict the "Day After Tomorrow" but I'm curious about potential impacts on the #AMOC
agupubs.onlinelibrary.wiley.com/doi/full/10....
As #SeaIce thins, the Beaufort Gyre releases its feshwater out of the #Arctic.
We don't predict the "Day After Tomorrow" but I'm curious about potential impacts on the #AMOC
agupubs.onlinelibrary.wiley.com/doi/full/10....
Reposted by Marylou Athanase
Fantastic to see this by @marylou_athanase @raphaelkoehler.bsky.social @clnhz.bsky.social et al out - an @PolarRES inspired project started at our very first bootcamp with @clicwcrp.bsky.social #norp way back in 2022 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024JC021873
Marylou Athanase (@marylou_athanase@mas.to)
0 Posts, 4 Following, 6 Followers · Polar and Climate Scientist, 🇨🇵 national living in 🇩🇪
mas.to
March 31, 2025 at 3:43 PM
Fantastic to see this by @marylou_athanase @raphaelkoehler.bsky.social @clnhz.bsky.social et al out - an @PolarRES inspired project started at our very first bootcamp with @clicwcrp.bsky.social #norp way back in 2022 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024JC021873
Our new study is out:
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
The Arctic Beaufort Gyre in CMIP6 Models: Present and Future
CMIP6 models generally simulate a too strong, large, and northward-extending Beaufort Gyre (BG) during the historical period Among the least unrealistic models, most simulations project a decline...
agupubs.onlinelibrary.wiley.com
March 31, 2025 at 2:48 PM
Our new study is out:
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
Reposted by Marylou Athanase
Planning your #EGU25 travel? If you're interested in extreme event attribution, make sure to stay until Friday to come along to our networking session to discuss the value of multiple methods. @marylouathanase.bsky.social
March 24, 2025 at 3:30 PM
Planning your #EGU25 travel? If you're interested in extreme event attribution, make sure to stay until Friday to come along to our networking session to discuss the value of multiple methods. @marylouathanase.bsky.social
Reposted by Marylou Athanase
This is really sad news. NOAA GFDL is one of the world's leading climate modeling centers, home to exceptional scientists. If anyone directly affected needs support, I’m happy to help. www.science.org/content/arti...
NOAA firings hit the birthplace of weather and climate forecasting
Dismissed researchers were improving severe weather predictions
www.science.org
March 4, 2025 at 8:37 PM
This is really sad news. NOAA GFDL is one of the world's leading climate modeling centers, home to exceptional scientists. If anyone directly affected needs support, I’m happy to help. www.science.org/content/arti...
Reposted by Marylou Athanase
This is absolutely devastating.
"The University of Maine System, which oversees Maine Sea Grant, said it was notified Friday night that NOAA was terminating a four-year agreement for funding, leaving 20 employees and the Sea Grant’s programming in limbo." www.pressherald.com/2025/03/01/m...
"The University of Maine System, which oversees Maine Sea Grant, said it was notified Friday night that NOAA was terminating a four-year agreement for funding, leaving 20 employees and the Sea Grant’s programming in limbo." www.pressherald.com/2025/03/01/m...
Maine Sea Grant funding terminated as Trump administration makes cuts to NOAA
The move to discontinue the $4.5 million grant program leaves 20 employees and the Sea Grant’s programming in limbo.
www.pressherald.com
March 1, 2025 at 7:29 PM
This is absolutely devastating.
"The University of Maine System, which oversees Maine Sea Grant, said it was notified Friday night that NOAA was terminating a four-year agreement for funding, leaving 20 employees and the Sea Grant’s programming in limbo." www.pressherald.com/2025/03/01/m...
"The University of Maine System, which oversees Maine Sea Grant, said it was notified Friday night that NOAA was terminating a four-year agreement for funding, leaving 20 employees and the Sea Grant’s programming in limbo." www.pressherald.com/2025/03/01/m...
Reposted by Marylou Athanase
Hi - I'd like to share this story of what is happening at NOAA GFDL, where some of my colleagues and I worked until the mass firings at NOAA last week.
"...the birthplace of weather and climate forecasting"
"...the birthplace of weather and climate forecasting"
NOAA firings hit the birthplace of weather and climate forecasting
Dismissed researchers were improving severe weather predictions
www.science.org
March 5, 2025 at 1:16 AM
Hi - I'd like to share this story of what is happening at NOAA GFDL, where some of my colleagues and I worked until the mass firings at NOAA last week.
"...the birthplace of weather and climate forecasting"
"...the birthplace of weather and climate forecasting"
Reposted by Marylou Athanase
Massive piece of work by Laurent Oziel and many #AWI colleagues, conducted within the #COMFORT project:
Laurent conducted future 🌊 Arctic Ocean high-resolution simulations that account for climate change AND carbon & nutrient inputs from rivers & coastal erosion.
⬇️
doi.org/10.1038/s415...
Laurent conducted future 🌊 Arctic Ocean high-resolution simulations that account for climate change AND carbon & nutrient inputs from rivers & coastal erosion.
⬇️
doi.org/10.1038/s415...
Climate change and terrigenous inputs decrease the efficiency of the future Arctic Ocean’s biological carbon pump - Nature Climate Change
Changes in the Arctic could impact the oceanic carbon sequestration of the region. Here the authors consider regional biogeochemistry, including coastal erosion and river inputs, to show a 40% reducti...
doi.org
January 6, 2025 at 10:13 PM
Massive piece of work by Laurent Oziel and many #AWI colleagues, conducted within the #COMFORT project:
Laurent conducted future 🌊 Arctic Ocean high-resolution simulations that account for climate change AND carbon & nutrient inputs from rivers & coastal erosion.
⬇️
doi.org/10.1038/s415...
Laurent conducted future 🌊 Arctic Ocean high-resolution simulations that account for climate change AND carbon & nutrient inputs from rivers & coastal erosion.
⬇️
doi.org/10.1038/s415...