We have a new perspective piece out at Nature Geoscience taking a critical view of how we talk about ice sheet stability and where we can go from here. Check it out! rdcu.be/faUdM

🔬Verifying GPR data with ice cores and refractometers 📹Here is the final instalment of our 5 part series from @alibanwell.bsky.social @cires.colorado.edu in #Antarctica 👏Thank you Ali Banwell, Ryan Cassotto, Michela Savignano and Allie Berry for sharing this incredible work with CPOM!

Sediment Transport by Greenland Icebergs (ice-rafted debris) contribute about 1/3 of the Greenland's total sediment output. See research by Ethan Pierce, Dartmouth and Irina Overeem, CU, Boulder published in Nature Communications: www.nature.com/articles/s41... www.colorado.edu/instaar/2026...

Check out this great interview with ice-coring legend Lonnie Thompson on @thedailyshow.com. youtu.be/oQoXNtcfwvA 🧪🌊❄️🥼

Interesting new preprint from @colinrmeyer.bsky.social and colleagues -> “we perform transient model experiment…to determine the effects of water extraction on glacier velocity. With continuous pumping, we simulate a modest impact on velocity…” egusphere.copernicus.org/preprints/20...

A great explainer on @dgrau13.bsky.social’s recent paper finding simple equations describing the size of melt lakes on ice sheets doi.org/10.1038/s414...

Glaciers in California’s Sierra Nevada are likely disappearing for the first time in the Holocene! 🧊😲 What a surprise! (nope) 🙃 Another evidence we are leaving the climate crucible that saw human societies develop! 🔥📈 www.science.org/doi/10.1126/...

What humans do to change climate matters much, much more than natural climate variations in determining future ice loss from Greenland 👉 Read about the results of the Greenland Ice Sheet Large Ensemble (GrISLENS) Project in our paper out now in The Cryosphere doi.org/10.5194/tc-1...

New paper from GLACIOME project: laboratory experimental constraints on iceberg mélange rheology led by Kavinda Nissanka from @emoryuniversity.bsky.social doi.org/10.1029/2024...

Cool new library for physics-informed neural networks for glaciology problems, led by Gong Cheng @dartmouthears.bsky.social gmd.copernicus.org/articles/18/...

Roadtripping to the beach this weekend and listening to this great podcast with @natalyagomez.bsky.social on @colinrmeyer.bsky.social’s Snow and Ice pod 🧊🧊 podcasts.apple.com/us/podcast/s...

Thrilled for this paper @natcomms.nature.com led by @dgrau13.bsky.social‬, PhD Candidate @gtsciences.bsky.social, putting forward the first physics-based parameterizations for the area and depth of supraglacial lakes 🧵👇 www.nature.com/articles/s41...

When the world gets you down, let the joyful wisdom of Tadashi Tokieda brighten your day. youtu.be/pkfDYOZ1p4Y?...

My first thing, pretty much, pretty pleased with it eartharxiv.org/repository/v...

📣 Our new paper is out in Nature Communications! Subglacial water—often overlooked—can change sea-level rise projections by up to a factor of three. Big implications for how we model Antarctica. 🔗 www.nature.com/articles/s41...

We have an opening for a postdoctoral researcher to join us at Dartmouth College. The focus of the project is on snow sintering. Together we will develop new models for snow evolution on the surface of glaciers. Please feel free to reach out if you have any questions.

Here's more from @jtemple.bsky.social on what the stakes of a Thwaites glacier collapse are and why this initiative is so important

A new #ScienceReview provides a preview of what the Arctic region may look like in a warmer world. https://scim.ag/41rrYuF

The Glacier Mass Balance Intercomparison Exercise is out! Herculean effort bringing together >200 estimates of glacier loss outside the ice sheets. Bottom line is 273 gigatonnes per year of ice loss since the year 2000! 😲 Open-access article: doi.org/10.1038/s415... 🥼❄️ @natureportfolio.nature.com

For Valentine’s Day 💙💙 we honored my favorite glaciological love story, Julia and Hans Weertman, by regelating some ice in class while deriving the regelation velocity from first principles

Come work with us at Arête Glacier Initiative! 👇 We are seeking a full-time Executive Director (equivalent to CEO) to help lead and grow Arête, a mission-driven non-profit cofounded by Colin Meyer @colinrmeyer.bsky.social and me. drive.google.com/file/d/12svQ...

Accepted in Journal of Glaciology! Work co-led with @subglacial.bsky.social testing glacier slip theory in the lab. We characterize new slip behaviors on short forcing timescales, while also finding theoretical models are reasonable over longer periods. www.researchgate.net/publication/...

❄️ Check out this fabulous new paper by Sarah Wells-Moran seeking to constrain the stresses at which ice fractures - it's a fun read by a particularly awesome scientist! 🧊 www.cambridge.org/core/journal...

Introducing the Cryosphere Publication feed! 🥼❄️ ⚒️ A feed that brings you cryosphere publications. Posts will appear if they... - include cryosphere keywords accompanied by a doi, arxiv, or pubmed link - links from (some) cryosphere-related journals bsky.app/profile/did:...

One month until Christmas Eve 🎄🎅🏼 ❄️ The chance for a white Christmas is decreasing across Europe. 📉 Here’s how the odds for a snowy Christmas Eve have changed in the latest climatological period (1991-2020) relative to 1951-1980. 🧵 (1/3)

@leighstearns.bsky.social shining bright at #AGU24 telling the fascinating story of changes at Greenland’s Helheim Glacier Greenland since the 1940s. Advance and thickening up to the 1980s followed by retreat and thinning, all in response to warming atmosphere and ocean and adding to sea level rise

Subglacial sediments migrate UP into temperate ice. From Ethan Pierce of @colorado.edu at #AGU24

We spend a few months on the Juneau Icefield each summer conducting glacier, geophysics, Polar engineering, geoscience, & climate related research with the Juneau Icefield Research Program. We are open to other scientists joining our team so reach out if you are interested!

WOOHOO! 🥳 We’re a little over 7 years old and #EarthArXiv has reached 5000 pre- and post-prints! Thanks to all of those who have supported us over the years 🤗 Check out EarthArxiv for yourself at: eartharxiv.org and learn more about us here: en.m.wikipedia.org/wiki/EarthAr...

Hey #energysky, I decided to record all the lectures in my Sustainability Issues in Energy class this fall. I am posting them to my YouTube channel every Friday. Follow along here: youtube.com/playlist?lis... 🔌💡

One of the most frequent questions I'm asked as a climate scientist is, "what can we do about climate change?" I don't base my answer on the physical science of the climate system, but rather social science of how individuals can most powerfully effect change. I look to research such as this: 🧵

Sometimes it feels like nothing is changing: as if we’re climbing the tallest mountain in the world, and the summit is no closer than when we started. But if we stop for a minute and turn around and look back, we can see how far we’ve actually come. Progress is happening, step by step.

Sharing the Geology of the Tour de France #TDF2024 eos.org/articles/sha...

Happy Father’s Day to all the dads who understand that streets are for people.

We've got recordings of essentially all public presentations and discussions from the recent Future of Greenland ice Sheet science workshop, now up and available to stream via www.fogss-workshop.org/2024-agenda Check it out! Talks from NASA, NSF, and leaders of major initiatives to inspire action

Weertman Award winner Gwenn Flowers with some wonderful closing comments about building a better glaciology community for all. #EGU24

We usually compare GHG emissions and temperatures to pre-industrial times, often considered to be 1850-1900, partly because good records start aroung then. But Japan has kept good records of peak cherry tree flowering since 812! ourworldindata.org/grapher/date...

❌ I’m in a slough of despond ✅ I’m in a freshwater marsh of sadness

"While the Arctic has experienced warming in the past, the scary thing is how rapidly it’s occurring now" – new work on permafrost and arctic rivers by Dr. Joanmarie DelVecchio and Prof. Marisa Palucis featured in the Dartmouth News: home.dartmouth.edu/news/2024/02...

Congratulations Randy LeVeque, University of Washington, recipient of the CSDMS 2024 Lifetime Achievement Award! See full citation here: csdms.colorado.edu/wiki/CSDMS_l...

props to @joanmarie.bsky.social for a stellar piece of work 🛰️📷 🐻‍❄️ doi.org/10.1073/pnas...

Check out the first paper 100% homegrown in the DRIP lab!! With postdoc David Cúñez and undergrad Div Patel, we discovered that shape really matters in granular segregation, with wide implications for industrial and geophysical flows www.pnas.org/doi/10.1073/...

We have a study in @EGU_TC that looks at the influence of choice of #geothermal heat flow map on modelled ice-bed temperatures in #Greenland. We make some suggestions for ISMIP7. 👇 article: doi.org/10.5194/tc-1... blog: williamcolgan.net/blog/?p=733

Dartmouth College invites applications for a Guarini Dean’s Postdoctoral Fellowship in the Department of Earth Sciences, spanning all disciplines studied in the Department. Applications are open now; review begins February 15! apply.interfolio.com/138866

The people have a right to climate data. Outstanding op-ed by Justin Mankin. Couldn't have said it better, agree with everything. www.nytimes.com/2024/01/20/o...

Our new paper out at Journal of Glaciology: "What can radar-based measures of subglacial hydrology tell us about basal shear stress?" led by GT undergrad (!) Rohaiz Haris, in collaboration with Winnie Chu 🧵 doi.org/10.1017/jog....

The Global Shape, Gravity Field, and Libration of Enceladus agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Thanks to all who took the time to chat sea level rise and ice sheet modeling this week! The coalition building I worked on made this the most fun and rewarding AGU in a while.