Erwan Le Roux
@erwanlrx.bsky.social
Postdoctoral researcher in statistics for climate adaptation
@IMT Atlantique, Brest, France
@IMT Atlantique, Brest, France
Reposted by Erwan Le Roux
Post doc position in 🛰️ remote sensing in 🇫🇷
Join the SAMOUSSA project to study Sargassum in the N.Atl using Meteosat Third Gen & the NEMO-Sarg model.
🎯 Goal: Improve seasonal forecast
Consider applying and joining a dynamic team and discover the wonderful city of Toulouse
🙏Thanks for sharing this
Join the SAMOUSSA project to study Sargassum in the N.Atl using Meteosat Third Gen & the NEMO-Sarg model.
🎯 Goal: Improve seasonal forecast
Consider applying and joining a dynamic team and discover the wonderful city of Toulouse
🙏Thanks for sharing this
May 20, 2025 at 5:58 PM
Post doc position in 🛰️ remote sensing in 🇫🇷
Join the SAMOUSSA project to study Sargassum in the N.Atl using Meteosat Third Gen & the NEMO-Sarg model.
🎯 Goal: Improve seasonal forecast
Consider applying and joining a dynamic team and discover the wonderful city of Toulouse
🙏Thanks for sharing this
Join the SAMOUSSA project to study Sargassum in the N.Atl using Meteosat Third Gen & the NEMO-Sarg model.
🎯 Goal: Improve seasonal forecast
Consider applying and joining a dynamic team and discover the wonderful city of Toulouse
🙏Thanks for sharing this
💧 New preprint in the HESS journal
🌍 "Hydrological regime shifts in Sahelian watersheds: an investigation with a simple dynamical model driven by annual precipitation"
🔧 We propose methodological tools to study the timing of past hydrological regime shifts
🔗 doi.org/10.5194/egus...
🌍 "Hydrological regime shifts in Sahelian watersheds: an investigation with a simple dynamical model driven by annual precipitation"
🔧 We propose methodological tools to study the timing of past hydrological regime shifts
🔗 doi.org/10.5194/egus...
Hydrological regime shifts in Sahelian watersheds: an investigation with a simple dynamical model driven by annual precipitation
Abstract. The Sahel, the semi-arid fringe south of the Sahara, experienced severe meteorological droughts in the '70s–'80s. Since these droughts, watersheds in the Central Sahel have experienced an in...
doi.org
May 14, 2025 at 8:14 AM
💧 New preprint in the HESS journal
🌍 "Hydrological regime shifts in Sahelian watersheds: an investigation with a simple dynamical model driven by annual precipitation"
🔧 We propose methodological tools to study the timing of past hydrological regime shifts
🔗 doi.org/10.5194/egus...
🌍 "Hydrological regime shifts in Sahelian watersheds: an investigation with a simple dynamical model driven by annual precipitation"
🔧 We propose methodological tools to study the timing of past hydrological regime shifts
🔗 doi.org/10.5194/egus...
🎤 FYI tomorrow, I will present at #EGU25 our work
🔍 "Equation discovery for climate impact: symbolic regression to emulate climate impact indicators for unseen scenarios"
🌊 In the "Machine Learning for Ocean Science" session at 09:25 Room -2.41/42
🔗 meetingorganizer.copernicus.org/EGU25/EGU25-...
🔍 "Equation discovery for climate impact: symbolic regression to emulate climate impact indicators for unseen scenarios"
🌊 In the "Machine Learning for Ocean Science" session at 09:25 Room -2.41/42
🔗 meetingorganizer.copernicus.org/EGU25/EGU25-...
Abstract EGU25-3836
meetingorganizer.copernicus.org
April 30, 2025 at 10:26 AM
🎤 FYI tomorrow, I will present at #EGU25 our work
🔍 "Equation discovery for climate impact: symbolic regression to emulate climate impact indicators for unseen scenarios"
🌊 In the "Machine Learning for Ocean Science" session at 09:25 Room -2.41/42
🔗 meetingorganizer.copernicus.org/EGU25/EGU25-...
🔍 "Equation discovery for climate impact: symbolic regression to emulate climate impact indicators for unseen scenarios"
🌊 In the "Machine Learning for Ocean Science" session at 09:25 Room -2.41/42
🔗 meetingorganizer.copernicus.org/EGU25/EGU25-...
Paper suggestion ! 🌎👨🏽🔬🎯 Sobel 2021 "Usable climate science is adaptation science"
link.springer.com/article/10.1... (restricted access journal)
link.springer.com/article/10.1... (restricted access journal)
Usable climate science is adaptation science - Climatic Change
The author argues that in the present historical moment, the only climate science that is truly usable is that which is oriented towards adaptation, because current policies and politics are so far fr...
link.springer.com
February 5, 2025 at 2:14 PM
Paper suggestion ! 🌎👨🏽🔬🎯 Sobel 2021 "Usable climate science is adaptation science"
link.springer.com/article/10.1... (restricted access journal)
link.springer.com/article/10.1... (restricted access journal)
Reposted by Erwan Le Roux
In an Essay just published in PLOS Climate, Hervé Douville of @meteofrance.com argues that the climate modelling community should take new approaches to maximise research impact
journals.plos.org/climate/arti...
journals.plos.org/climate/arti...
Doing better rather than promising more: A basic principle applicable to both climate modelling and climate policies
A growing number of scientists are expressing concerns about the inadequacy of climate change policies. Fewer are questionning the dominant climate modelling paradigm and the IPCC’s success to prevent...
journals.plos.org
January 31, 2025 at 9:58 AM
In an Essay just published in PLOS Climate, Hervé Douville of @meteofrance.com argues that the climate modelling community should take new approaches to maximise research impact
journals.plos.org/climate/arti...
journals.plos.org/climate/arti...
Reposted by Erwan Le Roux
Draft chapter outline for IPCC AR7 WGI is now public - *subject to approval* at the plenary, end of Feb
What's new?
Compared to AR6:
-More concise
-greater range of modeling approaches
-chapters span Earth System domains
-considers diverse physical scenarios
/thread/
apps.ipcc.ch/eventmanager...
What's new?
Compared to AR6:
-More concise
-greater range of modeling approaches
-chapters span Earth System domains
-considers diverse physical scenarios
/thread/
apps.ipcc.ch/eventmanager...
apps.ipcc.ch
January 28, 2025 at 10:58 AM
Draft chapter outline for IPCC AR7 WGI is now public - *subject to approval* at the plenary, end of Feb
What's new?
Compared to AR6:
-More concise
-greater range of modeling approaches
-chapters span Earth System domains
-considers diverse physical scenarios
/thread/
apps.ipcc.ch/eventmanager...
What's new?
Compared to AR6:
-More concise
-greater range of modeling approaches
-chapters span Earth System domains
-considers diverse physical scenarios
/thread/
apps.ipcc.ch/eventmanager...
New paper ! ❄️ 🌨️ 🇪🇺 Evin et al., 2025 "Estimating changes in extreme snow load in Europe as a function of global warming levels", with my co-authors Guillaume Evin, Elisa Kamir and @smlmrn.bsky.social
#Snow #Extreme #Climate
authors.elsevier.com/a/1kUDU,3mSS...
#Snow #Extreme #Climate
authors.elsevier.com/a/1kUDU,3mSS...
authors.elsevier.com
January 24, 2025 at 7:29 AM
New paper ! ❄️ 🌨️ 🇪🇺 Evin et al., 2025 "Estimating changes in extreme snow load in Europe as a function of global warming levels", with my co-authors Guillaume Evin, Elisa Kamir and @smlmrn.bsky.social
#Snow #Extreme #Climate
authors.elsevier.com/a/1kUDU,3mSS...
#Snow #Extreme #Climate
authors.elsevier.com/a/1kUDU,3mSS...
Strongly agree that "clearer, more specific language to describe the phenomena labelled as tipping points" is needed, due to all the existing definitions
Here is an illustration (for a bistable model) of "my definition" so far:
References: arxiv.org/abs/1103.0169
www.nature.com/articles/350...
Here is an illustration (for a bistable model) of "my definition" so far:
References: arxiv.org/abs/1103.0169
www.nature.com/articles/350...
December 3, 2024 at 8:31 PM
Strongly agree that "clearer, more specific language to describe the phenomena labelled as tipping points" is needed, due to all the existing definitions
Here is an illustration (for a bistable model) of "my definition" so far:
References: arxiv.org/abs/1103.0169
www.nature.com/articles/350...
Here is an illustration (for a bistable model) of "my definition" so far:
References: arxiv.org/abs/1103.0169
www.nature.com/articles/350...
Reposted by Erwan Le Roux
Excellent, as always - from @bobkopp.net et al
In addition, we don't say often enough that though there may be tipping _elements_, there's little evidence to date for global scale tipping points.
Best understanding remains that we warm as much as we cumulatively emit. No more, no less.
In addition, we don't say often enough that though there may be tipping _elements_, there's little evidence to date for global scale tipping points.
Best understanding remains that we warm as much as we cumulatively emit. No more, no less.
In a new interdisciplinary Nature Climate Change Perspective paper, led by me, @lisgilmore and Rachael Shwom, we offer a critical perspective on #climate and social “tipping points.” 🎁: rdcu.be/d2gBC 🧵
‘Tipping points’ confuse and can distract from urgent climate action
Nature Climate Change - The tipping points framing is widely used in climate discussions but receives mixed feedback. This Perspective critiques it for oversimplifying the complexities of natural...
rdcu.be
December 3, 2024 at 5:59 PM
Excellent, as always - from @bobkopp.net et al
In addition, we don't say often enough that though there may be tipping _elements_, there's little evidence to date for global scale tipping points.
Best understanding remains that we warm as much as we cumulatively emit. No more, no less.
In addition, we don't say often enough that though there may be tipping _elements_, there's little evidence to date for global scale tipping points.
Best understanding remains that we warm as much as we cumulatively emit. No more, no less.
Reposted by Erwan Le Roux
Dear colleagues, it is our pleasure to announce the “3rd Workshop on Bias Correction in Climate Studies” that will take place from May 26 to May 28, 2025 at Mines Paris – PSL, 60 boulevard Saint-Michel, Paris (France)
Bias Correction in Climate Studies - Sciencesconf.org
bias-correction.sciencesconf.org
December 3, 2024 at 11:06 AM
Dear colleagues, it is our pleasure to announce the “3rd Workshop on Bias Correction in Climate Studies” that will take place from May 26 to May 28, 2025 at Mines Paris – PSL, 60 boulevard Saint-Michel, Paris (France)
Reposted by Erwan Le Roux
First post on @bsky.app 🎉:
Can #AI-based weather forecasting models (trained on present-day data) provide skillful forecasts also in different colder and warmer states of the climate system?
Our preprint in arxiv explores this question:
doi.org/10.48550/arX...
Here is what we found so far (🧵1/7)
Can #AI-based weather forecasting models (trained on present-day data) provide skillful forecasts also in different colder and warmer states of the climate system?
Our preprint in arxiv explores this question:
doi.org/10.48550/arX...
Here is what we found so far (🧵1/7)
Robustness of AI-based weather forecasts in a changing climate
Data-driven machine learning models for weather forecasting have made transformational progress in the last 1-2 years, with state-of-the-art ones now outperforming the best physics-based models for a ...
doi.org
December 2, 2024 at 9:31 AM
First post on @bsky.app 🎉:
Can #AI-based weather forecasting models (trained on present-day data) provide skillful forecasts also in different colder and warmer states of the climate system?
Our preprint in arxiv explores this question:
doi.org/10.48550/arX...
Here is what we found so far (🧵1/7)
Can #AI-based weather forecasting models (trained on present-day data) provide skillful forecasts also in different colder and warmer states of the climate system?
Our preprint in arxiv explores this question:
doi.org/10.48550/arX...
Here is what we found so far (🧵1/7)
Reposted by Erwan Le Roux
New paper on #CMIP7 emissions-driven design out today in GMD.
Earth System Modeling has long relied on simulations driven by GHG concentrations. But this approach is outdated.
ESMs need to resolve human activity and its consquences.
gmd.copernicus.org/articles/17/...
Earth System Modeling has long relied on simulations driven by GHG concentrations. But this approach is outdated.
ESMs need to resolve human activity and its consquences.
gmd.copernicus.org/articles/17/...
The need for carbon-emissions-driven climate projections in CMIP7
Abstract. Previous phases of the Coupled Model Intercomparison Project (CMIP) have primarily focused on simulations driven by atmospheric concentrations of greenhouse gases (GHGs), for both idealized ...
gmd.copernicus.org
November 19, 2024 at 2:00 PM
New paper on #CMIP7 emissions-driven design out today in GMD.
Earth System Modeling has long relied on simulations driven by GHG concentrations. But this approach is outdated.
ESMs need to resolve human activity and its consquences.
gmd.copernicus.org/articles/17/...
Earth System Modeling has long relied on simulations driven by GHG concentrations. But this approach is outdated.
ESMs need to resolve human activity and its consquences.
gmd.copernicus.org/articles/17/...