Eviatar Escolar Bach
@eviatarbach.bsky.social
Lecturer (Asst. Prof.) in meteorology and math. & stats | Data assimilation, climate, ML, applied dynamical systems, predictability, inverse problems, climate politics
She/her 🏳️⚧️
https://eviatarbach.com
She/her 🏳️⚧️
https://eviatarbach.com
Pinned
Redirecting
doi.org
Our new paper, "Learning enhanced ensemble filters", is out in the Journal of Computational Physics! Led by Bohan Chen and co-authored by Edoardo Calvello, Ricardo Baptista, Andrew Stuart, and myself.
doi.org/10.1016/j.jc...
doi.org/10.1016/j.jc...
Reposted by Eviatar Escolar Bach
Citing "low enrollment" is always such a cop-out.
Texas A&M Ends Women’s Studies and Overhauls Classes Over Race and Gender
www.nytimes.com
January 30, 2026 at 7:07 PM
Citing "low enrollment" is always such a cop-out.
Reposted by Eviatar Escolar Bach
a heavily armed paramilitary force with legal immunity is occupying a city and going door to door kidnapping non-white adults and children in furtherance of an explicitly white nationalist political project
January 22, 2026 at 3:05 AM
a heavily armed paramilitary force with legal immunity is occupying a city and going door to door kidnapping non-white adults and children in furtherance of an explicitly white nationalist political project
Reposted by Eviatar Escolar Bach
So, if you ever wondered why people who understand surveillance are salty about video cameras on doorbells...
It's only a matter of time before they get co-opted into mass surveillance. And if the regime you live under changes that's you spying on your neighbours.
It's only a matter of time before they get co-opted into mass surveillance. And if the regime you live under changes that's you spying on your neighbours.
January 19, 2026 at 9:12 AM
So, if you ever wondered why people who understand surveillance are salty about video cameras on doorbells...
It's only a matter of time before they get co-opted into mass surveillance. And if the regime you live under changes that's you spying on your neighbours.
It's only a matter of time before they get co-opted into mass surveillance. And if the regime you live under changes that's you spying on your neighbours.
Reposted by Eviatar Escolar Bach
New paper out in JAMES (Jan 2026): “ClimaLand: A Land Surface Model Designed to Enable Data-Driven Parameterizations” (Deck, Braghiere et al.). I’m excited to be a co-lead on this CliMA land-model milestone. doi.org/10.1029/2025...
doi.org
January 7, 2026 at 7:30 PM
New paper out in JAMES (Jan 2026): “ClimaLand: A Land Surface Model Designed to Enable Data-Driven Parameterizations” (Deck, Braghiere et al.). I’m excited to be a co-lead on this CliMA land-model milestone. doi.org/10.1029/2025...
Reposted by Eviatar Escolar Bach
NCAR is quite literally our global mothership.
Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources.
Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.
Unbelievable.
Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources.
Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.
Unbelievable.
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
www.usatoday.com
December 17, 2025 at 2:59 AM
NCAR is quite literally our global mothership.
Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources.
Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.
Unbelievable.
Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources.
Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.
Unbelievable.
Reposted by Eviatar Escolar Bach
I'm deeply concerned about the wellbeing of prisoners who were involved in Palestine Action protests, and are currently on hunger strike.
Some have not eaten for six weeks. A number have been hospitalised. They are all being held on remand - without trial or conviction.
Some have not eaten for six weeks. A number have been hospitalised. They are all being held on remand - without trial or conviction.
December 11, 2025 at 10:03 AM
I'm deeply concerned about the wellbeing of prisoners who were involved in Palestine Action protests, and are currently on hunger strike.
Some have not eaten for six weeks. A number have been hospitalised. They are all being held on remand - without trial or conviction.
Some have not eaten for six weeks. A number have been hospitalised. They are all being held on remand - without trial or conviction.
Full text available on arXiv: arxiv.org/abs/2504.17836
Learning Enhanced Ensemble Filters
The filtering distribution in hidden Markov models evolves according to the law of a mean-field model in state-observation space. The ensemble Kalman filter (EnKF) approximates this mean-field model w...
arxiv.org
December 11, 2025 at 6:28 PM
Full text available on arXiv: arxiv.org/abs/2504.17836
We use a set transformer, a neural network architecture that is invariant to permutations of the ensemble, and can be learned at one ensemble size and deployed at another. This method shows significant improvement over leading filtering methods across a range of ensemble sizes and dynamical systems.
December 11, 2025 at 6:17 PM
We use a set transformer, a neural network architecture that is invariant to permutations of the ensemble, and can be learned at one ensemble size and deployed at another. This method shows significant improvement over leading filtering methods across a range of ensemble sizes and dynamical systems.
Ensemble Kalman filters (EnKFs) are suboptimal in the nonlinear and finite-ensemble setting. In this work, we learn corrections to the EnKF to improve filtering performance, approximating the mean-field formulation of the filtering problem.
December 11, 2025 at 6:17 PM
Ensemble Kalman filters (EnKFs) are suboptimal in the nonlinear and finite-ensemble setting. In this work, we learn corrections to the EnKF to improve filtering performance, approximating the mean-field formulation of the filtering problem.
Our new paper, "Learning enhanced ensemble filters", is out in the Journal of Computational Physics! Led by Bohan Chen and co-authored by Edoardo Calvello, Ricardo Baptista, Andrew Stuart, and myself.
doi.org/10.1016/j.jc...
doi.org/10.1016/j.jc...
Redirecting
doi.org
December 11, 2025 at 6:17 PM
Our new paper, "Learning enhanced ensemble filters", is out in the Journal of Computational Physics! Led by Bohan Chen and co-authored by Edoardo Calvello, Ricardo Baptista, Andrew Stuart, and myself.
doi.org/10.1016/j.jc...
doi.org/10.1016/j.jc...
Reposted by Eviatar Escolar Bach
If I were deliberately trying to cause vulnerable refugees as much distress as possible, this is how I would do it. Constantly shifting the ground underneath them, never allowing them a moment of certainty and stability. This is barbarism.
November 19, 2025 at 9:06 AM
If I were deliberately trying to cause vulnerable refugees as much distress as possible, this is how I would do it. Constantly shifting the ground underneath them, never allowing them a moment of certainty and stability. This is barbarism.
Reposted by Eviatar Escolar Bach
This is utterly foul. People recognised as refugees will never able to settle and find the long-term security they need to recover, always at risk of being returned if they can’t prove they still *really* deserve to be here. A life lived in permanent limbo.
www.bbc.co.uk/news/article...
www.bbc.co.uk/news/article...
UK set to limit refugees to temporary stays
Shabana Mahmood is expected to say the era of permanent protection for refugees is over, in major changes to the UK's asylum and immigration system.
www.bbc.co.uk
November 15, 2025 at 8:33 AM
This is utterly foul. People recognised as refugees will never able to settle and find the long-term security they need to recover, always at risk of being returned if they can’t prove they still *really* deserve to be here. A life lived in permanent limbo.
www.bbc.co.uk/news/article...
www.bbc.co.uk/news/article...
In synthetic experiments with prescribed signal-to-noise ratios, we find that new scoring rule–based estimators agree with the classical ones on whether the signal-to-noise ratio is anomalous or not. In application to the North Atlantic Oscillation, the results are more equivocal. (3/3)
November 3, 2025 at 10:17 AM
In synthetic experiments with prescribed signal-to-noise ratios, we find that new scoring rule–based estimators agree with the classical ones on whether the signal-to-noise ratio is anomalous or not. In application to the North Atlantic Oscillation, the results are more equivocal. (3/3)
This information-theoretic framework provides a new interpretation of the signal-to-noise paradox in climate forecasting, and could lead to more robust statistical tests for it. Additionally, it allows for the definition of a signal-to-noise ratio for categorical forecasts. (2/3)
November 3, 2025 at 10:17 AM
This information-theoretic framework provides a new interpretation of the signal-to-noise paradox in climate forecasting, and could lead to more robust statistical tests for it. Additionally, it allows for the definition of a signal-to-noise ratio for categorical forecasts. (2/3)
In this new preprint with Jochen Bröcker, we define a generalisation of the signal-to-noise ratio for probabilistic forecasts using proper scoring rules. (1/3)
arxiv.org/abs/2510.26809
arxiv.org/abs/2510.26809
A generalisation of the signal-to-noise ratio using proper scoring rules
A generalised concept of the signal-to-noise ratio (or equivalently the ratio of predictable components, or RPC) is provided, based on proper scoring rules. This definition is the natural generalisati...
arxiv.org
November 3, 2025 at 10:17 AM
In this new preprint with Jochen Bröcker, we define a generalisation of the signal-to-noise ratio for probabilistic forecasts using proper scoring rules. (1/3)
arxiv.org/abs/2510.26809
arxiv.org/abs/2510.26809
Reposted by Eviatar Escolar Bach
Solidarity with the Jewish community, especially in Manchester. The murder of two people at worship on the holiest day of the Jewish year is beyond reprehensible.
October 2, 2025 at 7:41 PM
Solidarity with the Jewish community, especially in Manchester. The murder of two people at worship on the holiest day of the Jewish year is beyond reprehensible.
Reposted by Eviatar Escolar Bach
the UK's new anti-trans rules are indefensible & will make global fascism stronger
my latest with @liberalcurrents.com
www.liberalcurrents.com/britains-bat...
my latest with @liberalcurrents.com
www.liberalcurrents.com/britains-bat...
Britain’s Bathroom Ban
The UK has gone from a bathroom ban being unthinkable to a Labour government implementing one without a vote
www.liberalcurrents.com
September 17, 2025 at 10:20 AM
the UK's new anti-trans rules are indefensible & will make global fascism stronger
my latest with @liberalcurrents.com
www.liberalcurrents.com/britains-bat...
my latest with @liberalcurrents.com
www.liberalcurrents.com/britains-bat...
Reposted by Eviatar Escolar Bach
I’ve been frustrated to see so much of the ongoing story about asylum seekers and the protests against them covered without hearing from those seeking asylum and now being met with hostility and hatred
I set out to speak to those directly affected to find out about the impact this is having 👇
I set out to speak to those directly affected to find out about the impact this is having 👇
We escaped war and torture but now we feel unsafe in Britain
Special report: Amid protests and rising aggression towards asylum seekers across the country, we spoke to those being targeted
www.liverpoolecho.co.uk
September 7, 2025 at 6:49 AM
I’ve been frustrated to see so much of the ongoing story about asylum seekers and the protests against them covered without hearing from those seeking asylum and now being met with hostility and hatred
I set out to speak to those directly affected to find out about the impact this is having 👇
I set out to speak to those directly affected to find out about the impact this is having 👇
Reposted by Eviatar Escolar Bach
As the mother of a young trans person, Alice, who took her life in 2022 aged just 20, and as an ex-NHS doctor, I am struggling to find the words to express my dismay and sadness at this story.
Whatever happened to do no harm? 🧵
Whatever happened to do no harm? 🧵
August 12, 2025 at 10:48 AM
As the mother of a young trans person, Alice, who took her life in 2022 aged just 20, and as an ex-NHS doctor, I am struggling to find the words to express my dismay and sadness at this story.
Whatever happened to do no harm? 🧵
Whatever happened to do no harm? 🧵
Reposted by Eviatar Escolar Bach
Deliberately starving people and shooting them when they seek aid is an industrial and systemic approach to mass murder.
www.washingtonpost.com/world/2025/0...
www.washingtonpost.com/world/2025/0...
Officials say 85 Palestinians seeking aid are killed in Gaza as Israel widens evacuation orders
Gaza’s Health Ministry says at least 85 Palestinians have been killed while trying to reach food on the deadliest day yet for aid-seekers in over 21 months of war
www.washingtonpost.com
July 20, 2025 at 8:22 PM
Deliberately starving people and shooting them when they seek aid is an industrial and systemic approach to mass murder.
www.washingtonpost.com/world/2025/0...
www.washingtonpost.com/world/2025/0...
Reposted by Eviatar Escolar Bach
In #Gaza, people are starving.
Families are going without substantial meals for days.
Prices have increased by over 4000%.
The Israeli Authorities have banned UNRWA from bringing food into Gaza for over 4 months.
This is a manmade and politically motivated starvation of a people.
Lift the siege.
Families are going without substantial meals for days.
Prices have increased by over 4000%.
The Israeli Authorities have banned UNRWA from bringing food into Gaza for over 4 months.
This is a manmade and politically motivated starvation of a people.
Lift the siege.
July 20, 2025 at 12:00 PM
In #Gaza, people are starving.
Families are going without substantial meals for days.
Prices have increased by over 4000%.
The Israeli Authorities have banned UNRWA from bringing food into Gaza for over 4 months.
This is a manmade and politically motivated starvation of a people.
Lift the siege.
Families are going without substantial meals for days.
Prices have increased by over 4000%.
The Israeli Authorities have banned UNRWA from bringing food into Gaza for over 4 months.
This is a manmade and politically motivated starvation of a people.
Lift the siege.
Reposted by Eviatar Escolar Bach
University of Reading students ‘scared’ to use toilets under new trans-exclusive policy
Reading Uni students 'scared' to use toilets under new trans-exclusive policy
EXCLUSIVE: University of Reading students have said they feel 'unsafe' and 'scared' to enter campus under its new trans toilet policy.
www.thepinknews.com
July 17, 2025 at 10:20 AM
University of Reading students ‘scared’ to use toilets under new trans-exclusive policy
Reposted by Eviatar Escolar Bach
Tony is a well-respected colleague, a KC and a former legal advisor to the EHRC. Having spoken to constituents and University of Reading students who are concerned about the impact of this guidance, I'm glad to have signed Tony's letter.
🏳️⚧️🚨 New letter from MPs on trans rights & EHRC Consultation on the #ForWomenScotland ruling.
I have written a letter to the EHRC to urgently raise concerns about the Draft Code of Practice consultation after the ruling. I am proud to say that 32 of my colleagues have signed it too.
I have written a letter to the EHRC to urgently raise concerns about the Draft Code of Practice consultation after the ruling. I am proud to say that 32 of my colleagues have signed it too.
July 2, 2025 at 3:45 PM
Tony is a well-respected colleague, a KC and a former legal advisor to the EHRC. Having spoken to constituents and University of Reading students who are concerned about the impact of this guidance, I'm glad to have signed Tony's letter.
Reposted by Eviatar Escolar Bach
Plans to proscribe Palestine Action signal an alarming escalation of the UK govt’s repression of our democratic rights.
Branding the group a ‘terrorist organisation’ would render support for the group and its nonviolent tactics a criminal offence, with penalties of up to 14 years’ imprisonment.
Branding the group a ‘terrorist organisation’ would render support for the group and its nonviolent tactics a criminal offence, with penalties of up to 14 years’ imprisonment.
June 22, 2025 at 11:05 AM
Plans to proscribe Palestine Action signal an alarming escalation of the UK govt’s repression of our democratic rights.
Branding the group a ‘terrorist organisation’ would render support for the group and its nonviolent tactics a criminal offence, with penalties of up to 14 years’ imprisonment.
Branding the group a ‘terrorist organisation’ would render support for the group and its nonviolent tactics a criminal offence, with penalties of up to 14 years’ imprisonment.
Reposted by Eviatar Escolar Bach
Cutting lines or even whole departments is the frontal assault on higher ed, but another low key war of attrition is the slow accumulation of grinding, meaningless additional tasks concerning syllabus templates, learning outcomes, institutional pablum, and ever more intricate evaluation hoops.
June 11, 2025 at 9:51 PM
Cutting lines or even whole departments is the frontal assault on higher ed, but another low key war of attrition is the slow accumulation of grinding, meaningless additional tasks concerning syllabus templates, learning outcomes, institutional pablum, and ever more intricate evaluation hoops.