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Chris D Clark

@chrisdclark.bsky.social

560 followers 180 following 22 posts

Geomorphology and palaeo glaciology, ice sheets, mountains and stuff

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Environmental science 39%

Geology 32%

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Reposted by Chris D. Clark

Frances Butcher @fegbutcher.bsky.social · 8d

I have exciting news! This week I began a @royalsociety.org University Research Fellowship @sheffielduni.bsky.social

sheffield.ac.uk/geography-pl...

Watch this space - hiring a PDRA in Mars glaciology soon!

(Image credit @uahirise.bsky.social @theseaning.bsky.social)

Dr Frances Butcher receives £1.8m Royal Society University Research Fellowship to investigate the glacial and climate history of Mars

The eight-year University Research Fellowship from The Royal Society will focus on poorly understood water-ice glaciers on Mars, which contain archives of martian climate information and could inform ...

sheffield.ac.uk

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Reposted by Chris D. Clark

Ruth Mottram @ruthmottram.bsky.social · Sep 9

New paper out today led by Martin Siegert with about 40 others where we argue that some of the proposed Polar #Geoengineering schemes for ice sheets, sea ice and solar radiation are potentially dangerous and unethical.

www.frontiersin.org/journals/sci...

Frontiers | Safeguarding the polar regions from dangerous geoengineering: a critical assessment of proposed concepts and future prospects

Fossil-fuel burning is heating the planet with catastrophic consequences for its habitability and for the natural world on which our existence depends. Halti...

www.frontiersin.org

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Chris D Clark @chrisdclark.bsky.social · Aug 14

That was a fab symposium on ice streams, thank you and very well done to the hosts. We also had dinner in a castle and got see Hadrian’s wall and drumlins and sheep and joke about Barnard Castle, oh and some very nice pubs

Caroline Clason @carolineclason.bsky.social · Aug 14

Reflecting back on how enjoyable it was to host the @igsoc.bsky.social Symposium here at @geogdurham.bsky.social. A big thank you to everyone who attended, presented and contributed to organisation! It was lovely to see so many friendly faces and to hear about some fantastic glaciological science! ❄️

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Reposted by Chris D. Clark

Caroline Clason @carolineclason.bsky.social · Aug 14

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Chris D Clark @chrisdclark.bsky.social · Jul 31

Have fun. And me too as well

Reposted by Chris D. Clark

Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · Nov 14

And @chrisdclark.bsky.social somehow I missed adding you to this starter pack: go.bsky.app/CQzthwb That is now rectified!

Reposted by Chris D. Clark

Christine S. Lane @chslane.bsky.social · Nov 15

If you’re in East Anglia (UK) and a bit of a Quaternary geek, check out “The Stone Index” by Mike Burgess, where he has compiled a incredible list of glacial erratics, standing stones and other “odd boulders” (1/1).
www.hiddenea.com/stoneindex.htm

NORFOLK

www.hiddenea.com

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Reposted by Chris D. Clark

Ryan Venturelli @radatmines.bsky.social · Nov 27

🚨New paper alert!🚨 Led by the fabulous @mmglacialgeo.bsky.social and Ellie Abrahams. We automated subglacial bedform detection 🧊🪨 Check it out to learn all about the wonders of 🛏️bed🛏️ 🔎finder🔍! doi.org/10.1111/bor....

Automatic identification of streamlined subglacial bedforms using machine learning: an open‐source Python approach

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onlinelibrary.wiley.com

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Reposted by Chris D. Clark

Adam Hepburn @adamjhepburn.bsky.social · Dec 3

Very take it or leave it on the 4:30am start

But really excited to be back in Sheffield and just about ready to give a seminar on modelling subglacial hydrology in Finland and Greenland

Reposted by Chris D. Clark

Bethan Davies @iceybethan.bsky.social · Dec 20

I’m thrilled to bits to have been awarded the Richardson Medal by @igsoc.bsky.social. Thanks so much to all my wonderful colleagues and especially to those who nominated me! You’re all so kind. www.igsoc.org/about/awards...

Bethan Davies (2024) | IGS

www.igsoc.org

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Reposted by Chris D. Clark

David Ho @davidho.bsky.social · Feb 26

At University of Cambridge, I was asked if I maintain a sense of optimism about climate change. My answer:

Yes, because unlike cancer, where we often don't know the cause and don't have a cure, we know exactly why global temperatures are rising and how to stop it. We just need the political will.

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Reposted by Chris D. Clark

Remy Veness @remyveness.bsky.social · Mar 5

Want to come and do a PhD in Palaeo Glaciology and numerical ice sheet modelling at Sheffield Hallam? @niallgandy.bsky.social, myself and Bob Jeffery are advertising a fully funded PhD Studentship. The closing date for applications: 17:00 (BST) on Thursday 17th April 2025. tinyurl.com/2ab5mdhf

Sheffield Hallam University - Graduate Teaching Assistantship (GTA) Scholarships in the Institute of Social Sciences: Constraining the Behaviour of the British-Irish Ice Sheet over Multiple Glacial Cy...

PhD Project - Sheffield Hallam University - Graduate Teaching Assistantship (GTA) Scholarships in the Institute of Social Sciences: Constraining the Behaviour of the British-Irish Ice Sheet over Multi...

tinyurl.com

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Reposted by Chris D. Clark

Remy Veness @remyveness.bsky.social · Mar 14

Back to civilisation after another great field campaign to Hofsjökull with the DRUMICE project. We managed to collect over 100km of radar lines over the 2 and a half day weather window. Will put together this quick little video. Thanks to NERC UK-Iceland collaboration grant for making this happen!

Reposted by Chris D. Clark

Jeremy Ely @jeremyely.bsky.social · Mar 19

I'm at UNESCO tomorrow. On a panel for about glacier preservation. Isn't that how everyone celebrates their birthday?
You can witness the rare event of me wearing a suit by registering here:
unesco-org.zoom.us/webinar/regi...

Video Conferencing, Web Conferencing, Webinars, Screen Sharing

Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom ...

unesco-org.zoom.us

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Reposted by Chris D. Clark

James Kirkham @jdkirkham.bsky.social · Apr 24

Icebergs? The size of a city? 90 miles from the UK? Must be a joke, right?

No! Our new paper in @natcomms.nature.com shows massive tabular icebergs broke off the UK in the last ice age before the UK’s ice shelves disintegrated from climate warming.

🧵

www.nature.com/articles/s41...

@bas.ac.uk

Change in iceberg calving behavior preceded North Sea ice shelf disintegration during the last deglaciation - Nature Communications

Massive tabular icebergs broke off of the UK during the last ice age. The widespread break-up of the ice shelves which produced these giant icebergs can be traced to around 18,000 years ago, and likel...

www.nature.com

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Reposted by Chris D. Clark

Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · Apr 24

And lol I know that last point would be the deal breaker for the Elseviers and the Wileys

Reposted by Chris D. Clark

Kristen Cook @kristencook.bsky.social · May 3

Closing the books on another fantastic EGU general assembly - what a week! Thanks to everyone for bringing your science to EGU, and to the conveners and other volunteers for organizing it all!

A view of Vienna at sunset, looking across the Donau from the 57th floor

A crowded poster session. Two rows of poster boards and the space between packed with geoscientists

A full oral session room, looking from the back of the room. Looking across many rows of chairs occupied by geoscientists towards a large screen at the front of the room

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Reposted by Chris D. Clark

Realms of Gold @petergknight.bsky.social · May 5

Still exploring old paperwork. Here’s a funny thing: apparently I published this paper in 1987, but forgot to add it to my CV so it was never mentioned in any job applications, promotions etc… a forgotten paper! Well, belatedly I’ve put it in the pile now! I wonder what else I did and then forgot.

Paper from The International Jornal of Remote Sensing that I missed of my CV for the last 38 years!

Reposted by Chris D. Clark

Melaine Le Roy @subfossilguy.bsky.social · Jul 20

Aiguiile Verte and (former) Mer de Glace bed from La Flégère this morning! 😍

Here are the biggest glaciers of the rest of your life! 🙃

📷 @lomdumtblanc.bsky.social

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Reposted by Chris D. Clark

The Alpine Club @alpineclub.bsky.social · Jul 15

In light of high temperatures and recent collapses in the Alps, we're resharing our 2022 piece from geomorphologist Ludovic Ravanel on mountain stability in the Mont Blanc Massif.

Despite being 3 years old, it contains evergreen advice on warning signs of collapse and areas to avoid in the heat.

Mountain Stability in the Mont Blanc Massif - Summer 2022

Mountain Stability in the Mont Blanc Massif - Summer 2022 What follows is a summary of a discussion/Q&A that was organised by IFMGA guide Martin Elias on behalf of Chamonix Experience in early August...

tinyurl.com

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Reposted by Peter Thorne, Chris D. Clark

Dr. Evan J. Gowan @evangowan.bsky.social · Jul 14

Simms et al present an investigation of a MIS 3 (~50 ka) raised shoreline deposit in northwestern Scotland. Since it is located above present day sea level, if the age is correct, it implies a significant MIS 4 glaciation of Scotland. ⚒️🧪🦣 doi.org/10.1002/jqs....

Was Scotland covered by an ice sheet during Marine Isotope Stage 4? Insights from the pre‐Last Glacial Maximum marine terraces of northwest Scotland

Raised shorelines provide important constraints on past sea levels, glacial isostatic adjustment (GIA), and rates and directions of vertical crustal motion. Although most raised shorelines across NW ....

doi.org

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Reposted by Chris D. Clark

Ian Hall @ianhall.bsky.social · Jun 25

What ancient ice sheets can tell us about future sea level rise

theconversation.com/what-ancient...

What ancient ice sheets can tell us about future sea level rise

When ice gets trapped on land as giant ice sheets, it causes the sea level to change, but it doesn’t change by the same amount all around the planet.

theconversation.com

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Reposted by Chris D. Clark

Anna Hughes @annalchughes.bsky.social · Jun 18

Scandinavian Ice Sheet chronology PhD opportunity - deadline to apply 21 July - with Karol Tylmann at University of Gdańsk

PhD opportunity: A multiple in-situ cosmogenic nuclides approach to dating erratics within the southern fringe of the Scandinavian Ice Sheet. Contact: k.tylmann@ug.edu.pl

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Reposted by Chris D. Clark

Carl Regnéll @carlregnell.bsky.social · Jun 12

📣Friends of the Quaternary!!📣

🐦Early bird registration is open for the upcoming Nordic Geological Winter Meeting in Turku, Finland (13-15 Jan 2026) ngwm2026.fi

Please consider submitting an abstract to our session on "Quaternary palaeoglaciology and palaeoclimate".
🦣❄️🐚
It will be awesome!

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Reposted by Chris D. Clark

Melaine Le Roy @subfossilguy.bsky.social · May 28

The river level has already started to rise behind the dam in Blatten! 🌊

A lake is underway... 😨

To 'mitigate' flooding hazard in the valley, the Ferden dam lake, located 6 km downstream has been emptied.

📷 SRF

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Reposted by Chris D. Clark

Melaine Le Roy @subfossilguy.bsky.social · May 28

Upstream and downstream view of the deposit! 🧊🌊

Massive... 😱😱😱

www.letemps.ch/suisse/valai...

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Reposted by Richard Walker, Norbert Marwan, Chris D. Clark , and 1 more Richard Walker, Norbert Marwan, Chris D. Clark, Elizabeth Stevenson

Melaine Le Roy @subfossilguy.bsky.social · May 28

SPEECHLESS BEFORE / AFTER #BLATTEN

The magnitude of destruction after the 3:24 pm collapse of Birch Glacier is immense! 😱

All the forest has been razed and the ice/wood/debris dammed the Lonza river 🌊

Some buildings of Blatten are buried 🏠

📷 Pomona

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Reposted by Chris D. Clark

Harold Lovell @hazlovell.bsky.social · May 21

Stark warning from Chris Stokes and others:

www.bbc.co.uk/news/article...

Coastlines in danger even if climate target met, scientists warn

The goal of limiting warming to 1.5C is too high to avoid continued sea-level rise, scientists warn.

www.bbc.co.uk

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Reposted by Chris D. Clark

Jeremy Ely @jeremyely.bsky.social · May 16

onlinelibrary.wiley.com/doi/10.1002/...

How rocks got to where they got to. @remyveness.bsky.social @chrisdclark.bsky.social

Modelling erratic dispersal accounting for shifting ice flow geometries: A new method and explanations of erratic dispersal of the British–Irish Ice Sheet

Glacial erratics are geologically distinctive rocks transported away from their source area by ice sheets and deposited in lithologically different bedrock areas. They have attracted much scientific ...

onlinelibrary.wiley.com

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