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Jamie Hannaford

@jamiehannahydro.bsky.social

150 followers 160 following 24 posts

Hydrologist, UK Centre for Ecology & Hydrology (UKCEH) Visiting Associate Prof, ICARUS Maynooth, Ireland Hydrological variability (floods and droughts) past, present and future!

Videos

Environmental science 71%

Geography 18%

Posts Media Videos Starter Packs

Reposted by Katharine Hayhoe, Peter Thorne, Jamie Hannaford , and 4 more Katharine Hayhoe, Peter Thorne, Jamie Hannaford, David L. Roberts, Mathias Disney, Janez Sušnik, Stuart White

Kate Raworth @kateraworth.bsky.social · 9d

Big Doughnutty News.
Just out in Nature: the all-new 2025 Doughnut. Transformed from a single-year snapshot to an annual global monitor of 21st century social & ecological thriving. Available to all in an open-access paper by @andrewlfanning.bsky.social and me. 🧵 1/
www.nature.com/articles/s41...

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Reposted by Jamie Hannaford

Reposted by Jamie Hannaford, Carly Reddington

Ed Hawkins @edhawkins.org · 10d

Visualising historical changes in air pollution with the Air Quality Stripes

Website: airqualitystripes.info

And paper led by @kirstypringle.bsky.social and @jimmcquaid.bsky.social now published which visualises trends in air quality across many global cities: gc.copernicus.org/articles/8/2...

Visualising historical changes in air pollution with the Air Quality Stripes

Abstract. This paper introduces the Air Quality Stripes, a data visualisation project which presents historical changes in outdoor particulate matter air pollution (PM2.5) concentrations across major ...

gc.copernicus.org

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Jamie Hannaford @jamiehannahydro.bsky.social · 10d

And here in the UK. Hope you are enjoying new water year’s eve!

Reposted by Peter Thorne, Jamie Hannaford, Ed Hawkins

Marco Petagna @petagna.bsky.social · 10d

The possible outcomes for the weather later this week..

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Reposted by Jamie Hannaford

Dr Chris Skinner FRGS @geoskinner.games · 14d

Calling all UK users of hydrology - drought to floods, student to retired, research to practice.

Tell us your training needs and help shape the future of UK hydrology.

forms.cloud.microsoft/e/sF8t1YwKnp

UK Users of Hydrology. Tell us your training needs. We'd like to hear from all users of hydrology - research to practice - and not just floods. Complete our short (<10min) survey about key skills in hydrology. Help the hydrological community prepare for future challenges. Complete before October 17th 2025. Link in Post. Environment Agency. Flood Hydrology Improvements Programme.

Reposted by Jamie Hannaford

Peter Thorne @peterthorne.bsky.social · 17d

Great to see coverage of our first full @wasitusie.bsky.social study on RTE (and elsewhere). Kudos @clairebergin.bsky.social and Lionel swan as well as met Éireann colleagues and thanks as ever to @wwattribution.bsky.social for the hugely valuable collaboration www.rte.ie/news/ireland...

Record temperatures linked to human-caused climate change

New research by climate scientists at Maynooth University in conjunction with Met Éireann has found Ireland's record summer night time temperatures this year were made 40 times more likely by human-ca...

www.rte.ie

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Reposted by Michael Wagner, Johannes Quaas, Jamie Hannaford , and 8 more Michael Wagner, Johannes Quaas, Jamie Hannaford, Ben Bond‐Lamberty, Gavin A. Schmidt, John Fasullo, Flavio Lehner, Jürgen Maier, James Connelly, Richard M. Carpiano, Alan McNally

Zeke Hausfather @hausfath.bsky.social · 17d

In a UN speech today, President Trump said that "all of these [climate] predictions were wrong".

Back in 2019 I led a research effort to digitize old climate model projections and assess how well they did. Turns out they got future warming pretty spot on!

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Reposted by Jamie Hannaford

Steve Turner @steveturner.bsky.social · 17d

Excited to host a hands-on #IAHS2025 workshop with @sayaliuk.bsky.social & @wilsonchan.bsky.social

🗓️ 6 Oct, 18:00 IST | 📍 Roorkee, India

Explore the ROBIN dataset, drought indicators & FlowScreen.

More info: iahs2025.com/SEROBIN

Register: docs.google.com/forms/d/e/1F...

#ROBINHydro #Hydrology

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Reposted by Peter Thorne, Jamie Hannaford, Ben Bond‐Lamberty , and 3 more Peter Thorne, Jamie Hannaford, Ben Bond‐Lamberty, Gavin A. Schmidt, Ed Hawkins, Gilles Louppe

Peter Stott @stottpeter.bsky.social · 17d

The people I work with are not stupid people and our climate predictions of 30 years ago of global warming have proved to be accurate. Just saying. www.bbc.co.uk/news/live/cp...

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Reposted by Jamie Hannaford

Frederik Kratzert @kratzert.bsky.social · 22d

After about one year in review, the dataset paper for the Caravan-GRDC extension was finally published.

See: essd.copernicus.org/articles/17/...

I am so happy that GRDC was open for this effort and made some of their data freely available through Caravan.

GRDC-Caravan: extending Caravan with data from the Global Runoff Data Centre

Abstract. Large-sample datasets are essential in hydrological science to support modelling studies and advance process understanding. Here, we present the GRDC-Caravan dataset, an extension to the lar...

essd.copernicus.org

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Reposted by Jamie Hannaford

World Meteorological Organization @wmo-global.bsky.social · 22d

Just Launched 📢 The WMO’s 2024 State of Global Water Resources Report is now available!

In 2024, the water cycle has become increasingly erratic and extreme, swinging between deluge and drought.

This is the #StateOfWater.

Read the report 🔗 https://bit.ly/469OBWU

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Jamie Hannaford @jamiehannahydro.bsky.social · 22d

That is the only way forward now the seed has been planted.

Jamie Hannaford @jamiehannahydro.bsky.social · 22d

Excellent. Two other scientists sat with me in a pub - also in.

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Jamie Hannaford @jamiehannahydro.bsky.social · 22d

I’m in, by the way, and ready to part with my cash and I have the very review in mind….

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Jamie Hannaford @jamiehannahydro.bsky.social · 22d

I, for one, think this is genius!!! There’s a startup here, selling bespoke t-shirts to academics with quotes from their most horrorshow reviews

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Reposted by Jamie Hannaford

Wilson Chan @wilsonchan.bsky.social · Sep 9

📢 New paper! Events like the winter 2023/24 floods are wetter with higher river flows due to climate change.

A worst-case “storyline” shows flows could be even higher - anticipating UNSEEN extremes is vital for adaptation.

🔗: doi.org/10.1088/1748...

@ukceh.bsky.social @climatecocentre.bsky.social

River flow amplification under climate change: attribution and climate-driven storylines of the winter 2023/24 UK floods - IOPscience

River flow amplification under climate change: attribution and climate-driven storylines of the winter 2023/24 UK floods, Chan, Wilson C H, Barker, Lucy J, Faranda, Davide, Hannaford, Jamie

doi.org

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Reposted by Peter Thorne, Jamie Hannaford, Gavin A. Schmidt

Peter Stott @stottpeter.bsky.social · Sep 1

New analysis from @metoffice.gov.uk showing that the record-breaking hot UK summer of 2025 has been made much more likely by human-induced climate change and such a hot summer would be expected about once every 5 years in current climate. www.metoffice.gov.uk/about-us/new...

Summer 2025 is the warmest on record for the UK

Provisional Met Office statistics confirm that summer 2025 is officially the warmest summer on record for the UK.

www.metoffice.gov.uk

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Reposted by Jamie Hannaford

Liam Dutton @liamdutton.bsky.social · Aug 28

A quick read on a wet start to September for the UK and how a hurricane flipped the weather pattern.
liamdutton.substack.com/p/a-wet-star...

A wet start to September for UK

How a hurricane flipped the UK's weather pattern

liamdutton.substack.com

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Reposted by Jamie Hannaford

Cecilia Keating @ceciliakeating.carbonbrief.org · Aug 26

The UK has seen widespread drought this summer.

But to what extent are UK droughts being impacted by climate change?

In a timely piece up on @carbonbrief.org today, @ukceh.bsky.social hydrologists look at whether global warming is making UK droughts worse

www.carbonbrief.org/guest-post-i...

Guest post: Is climate change making UK droughts worse? - Carbon Brief

The year 2025 has seen exceptionally dry conditions in many parts of the UK. At...

www.carbonbrief.org

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Reposted by Jamie Hannaford

Carbon Brief @carbonbrief.org · Aug 26

NEW – Guest post: Is climate change making UK droughts worse?

✍️ Jamie Hannaford, @wilsonchan.bsky.social, Lucy Barker, Stephen Turner

➡️ Read here: buff.ly/boBB8nU

Guest post: Is climate change making UK droughts worse? - Carbon Brief

The year 2025 has seen exceptionally dry conditions in many parts of the UK. At...

buff.ly

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Reposted by Jamie Hannaford

Simon Lee @simonleewx.com · Aug 25

Simple answer: high rainfall on average doesn’t mean there isn’t a problem when it stops raining.

BBC News headline “Scotland is known for its rain. So why are experts worried about water supplies?”

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Reposted by Jamie Hannaford

UK Centre for Ecology & Hydrology (UKCEH) @ukceh.bsky.social · Aug 25

Don't miss our three amazing keynote speakers at the Land and Water in a Changing Climate event at the Royal Society in London on 24 September!

Register now to join modellers, industry and practitioners across hydrology to share insights and knowledge.

🔗 🧪 buff.ly/8OdfwQc

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Jamie Hannaford @jamiehannahydro.bsky.social · Aug 24

(Tbf, data on reservoirs is the wobbliest/least consistent part of the story not just in the coverage but even in the underlying status reporting… irrespective of percentage mangling, long-term comparisons are fraught with challenges and indicative at best)

Jamie Hannaford @jamiehannahydro.bsky.social · Aug 24

Ah thanks! Just curious and agree there’s been confusion aplenty.

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Jamie Hannaford @jamiehannahydro.bsky.social · Aug 23

Where’s this example, out of interest, Simon?

Jamie Hannaford @jamiehannahydro.bsky.social · Aug 21

Linked from the Proc of the Royal Society… GENIUS!

Reposted by Peter Thorne, Jamie Hannaford, Fabrice Ardhuin

Ed Hawkins @edhawkins.org · Aug 20

The storm that inspired weather forecasting

climatelabbook.substack.com/p/the-storm-...

The storm that inspired weather forecasting

The Royal Charter Storm in 1859 led to the first weather forecasts

climatelabbook.substack.com

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Jamie Hannaford @jamiehannahydro.bsky.social · Aug 20

Agreed, as in any field incl my own and I fear could be said about many key trusted data sources given increasing pressures on resource to support the unsung work of collating and QCing the info on which all the fancy modelling and everything else depends….

Reposted by Jamie Hannaford

UK Centre for Ecology & Hydrology (UKCEH) @ukceh.bsky.social · Aug 15

🌟 We're excited to have our water science director Dr Glenn Watts as a keynote speaker at next month's Hydro-JULES conference, Land and water in a changing climate, at the Royal Society.

🖱️ Book your place! enterprise.mitingu.com/ceh-events/l... 🧪

Image of Dr Glenn Watts beside text Keynote speaker Dr Glenn Watts UK Centre for Ecology & Hydrology Climate change and water resources: seeking certainty in an uncertain world 24 Sep 2025 Royal Society, London

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