3Myr old mean ocean temperatures from the Allan Hills Blue Ice area. phys.org/news/2026-03...
Aslak Grinsted
@glaciology.net
Associate Professor at the Niels Bohr Institute, University of Copenhagen. Interested in ice, climate, sea level, and extreme events. 🧪 ❄️ 🌊 🌀 🥼 🌡️ Dad of two teen girls, and one toddler boy. Also on mastodon here: @agrinsted@fediscience.org
JAX-FEM looks like a cool project. I will probably stay on fenicsx/firedrake. But I want to try it out. github.com/deepmodeling...
GitHub - deepmodeling/jax-fem: Differentiable Finite Element Method with JAX · GitHub
Differentiable Finite Element Method with JAX. Contribute to deepmodeling/jax-fem development by creating an account on GitHub.
github.com
Quite happy about this assignment for my inverse problems course (heavily based on material I inherited from Klaus Mosegaard). It is a gravity inversion problem using old IPY data.
I just downloaded a textbook in epub format. It is actually possible to read it on my phone. (Unlike the pdf). I like it.
This is cool, 6 million year old ice from Antartica with inferred temperature ~12°C warmer than the late Pleistocene. No CO2 level yet! (That will be highly anticipated!) www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
pnas.org
Our traverse fieldwork had been accomplished www.green2ice.eu/2025/06/07/j...
June 7: Success! The casing of the GRIP borehole finally located – green2ice.eu
green2ice.eu
A PhD fellowship in computational and mathematical modelling of flow and fracture in ice sheets. jobportal.ku.dk/phd/?show=16... Application deadline tomorrow
Woodworth and Rowe 2018: The tidal measurements of James Cook during the voyage of the Endeavour (Cool paper and cool journal) hgss.copernicus.org/articles/9/8...
The tidal measurements of James Cook during the voyage of the Endeavour
Abstract. The main priority of the first of James Cook's famous voyages of discovery was the observation of the transit of Venus at Tahiti. Following that, he was ordered to embark on a search for new...
hgss.copernicus.org
We lost a giant in polar and climate science this spring. Chet Langway, a man who was there at the start of ice core science and kept miles of cores frozen for decades of scientific study. ❄️🧪💙📚 #scicomm #climate #UVMresearch #science 🌎 🔬 ⚒️ #ClimateHealth www.buffalo.edu/ubnow/storie...
Remembering Chet Langway
Considered the pioneer of ice core drilling, the late UB professor emeritus' work extracting climate data from ice sheets continues at the university today.
buffalo.edu
I have built a cool little prototype ML algo that can estimate population density in 20m resolution from S2 imagery. Here are 5 examples. Row1: Sentinel-2. (input data) Row2: population density from eurostat. (input data) Row3: ML model population density. (output data)
Why do these 2 numpy lines not give the same result? Aaargh! data[range(1,3),range(1,3)].shape -> (2,) data[1:3,1:3].shape -> (2,2) I don't want the diagonal!
Bedrock reached at the Ice coring on Müller ice cap (Axel Heiberg Island). I bet that we would reach at 611m --- pretty close to the final 613m. (Bo guessed 612m so i didn't win).
The resulting cataclysmic backsplash of water - a MEGATSUNAMI - was around 200 metres tall, and sent 100-metre-high waves racing across the fjord to smash against the other side of it. (This is still not the crazy bit!) 5/
Crude estimate of the bicycle accident risk per km. (Sure to convince my teen girls to wear their helmets.) Numbers for denmark: Accidents: 15000 per year Trips: 2e6 per day Avg trip length: 3.2km =Approx: 1 accident per 150e3 km stormgmtpbie.z6.web.core.windows.net/cykelregnska...
Greenland accumulation in terms of cucumbers. * Greenland acc = ~600Gt/yr. * global pop = ~9bn. So ~7.5 kg/person/hour * cucumber water content = ~166g So ~45 cucumbers/person/hour Unfortunately global cucumber production is only 95 Mt/yr = 1.2 cucumber/person/week 🥲
An open position for a Global climate and ice sheet modelling scientist at DMI. candidate.hr-manager.net/ApplicationI...
Global climate and ice sheet modelling scientist
The Danish Meteorological Institute (DMI) opens a 4 year, full-time position for a scientist to work on global climate modeling with a particular focus on how c
candidate.hr-manager.net
Large fractures continue to open up at the grounding line of Thwaites Glacier Eastern Ice Shelf. Animation contains @copernicusland.bsky.social #Sentinel-1C data alongside 1A and 1B
Alot of ML at EGU. Some of it good, but also some pretty random stuff.
It's so sad to see that this incredible dataset, which has redefined how we approach many Arctic-related studies, may not be updated in the future 😞
Polar Geospatial Center@polargeospatial.bsky.social · last yr.📢 The final ArcticDEM & REMA release is here - and it might be the last. Funding cuts put vital polar data at risk. Help us rally support: take the survey! 🔗https://z.umn.edu/pgc-dem-survey #PolarScience #SavePolarData
Norge vil lokke forskere til landet: 'Det handler især om situationen i USA'. I Norge har Forskningsrådet, der prioriterer og deler penge ud på vegne af staten, afsat 100 millioner norske kroner (cirka 63 millioner kroner) til at lokke udenlandske forskere til landet.
Norge vil lokke forskere til landet: 'Det handler især om situationen i USA'
I Norge har Forskningsrådet, der prioriterer og deler penge ud på vegne af staten, afsat 100 millioner norske kroner (cirka 63 millioner kroner) til at lokke udenlandske forskere til landet.
dr.dk
#IPICS followers take note. The icecore subcategory is around 4GB and probably worth having at hand. #AlexandriaLibraryLuddites
I need a new circular saw and would like the batteries to be compatible with my other DeWalt tools. But i am wondering if i should jump ship to some non-US brand. Also - they apparently have extra high exposure to the tariff situation.
Come work with us PhD fellowship modelling flow and fracture in #ice sheets jobportal.ku.dk/phd/?show=16... (application deadline 3 June) @precise-project.bsky.social
PhD fellowship in computational and mathematical modelling of flow and fracture in ice sheets
jobportal.ku.dk
Who wants to work on the Arctic in Copenhagen? Super postdoc job going with our friends at Aarhus University* together with DMI on climate modelling and Arctic influences on the mid-latitudes: *at a campus not actually in Aarhus but just outside Copenhagen international.au.dk/about/profil...
Postdoc in Climate Modelling and Arctic-Midlatitude Connections - Vacancy at Aarhus University
Vacancy at Department of Environmental Science - Atmospheric Emissions & Modelling, Aarhus University
international.au.dk
This week is your last chance to apply for the Ice core Analysis and Techniques PhD school indico.nbi.ku.dk/event/2111/ #P2F #Icelink @precise-project.bsky.social
ICAT PhD School 2025
Ice Core Analysis Techniques (ICAT) PhD school-2025 Supported by: University of Copenhagen and the Novo Nordic Foundation funded project PRECISE, the H2020 projects Icelink and P2F and the DFF project...
indico.nbi.ku.dk
The Overleaf integrations with git and zotero is so great. New figures will appear in Overleaf when I commit and bib file sync also only takes a click.
The Danish Meteorological Institute (DMI) is offering a 3-year, full-time position as a Scientist for Modelling Ice Sheet–Climate Interaction. @precise-project.bsky.social candidate.hr-manager.net/ApplicationI...
Scientist for Modeling Ice Sheet–Climate Interaction
Are you interested in working with climate and ice sheet models? And motivated by understanding climate change in the Arctic and Antarctic regions? Here is a gr
candidate.hr-manager.net
A three-year #postdoc in #machinelearning emulators of #ice-ocean processes is available at Northumbria University as part of our novo funded project PRECISE @precise-project.bsky.social