@yogaski
PhD student in Glaciology🍦 ⌨️Poetry 📍Austrian now @NTNU in Trondheim 🇳🇴 📍Studying Glacier Hydrology ❄️🧊💧through 🔎 Firn, Snow, pressurised 🌊,GLOFs & Glacierdynamics⚡️ 🐧APECS Norway National Committee Member 📍Fieldwork sites in: Norway, Svalbard & Pakistan
Looped moraines, also called surge or loop moraines, typically form on surging glaciers due to differential ice flow rates, where faster-flowing ice from a tributary or side arm transfers into the slower-moving main glacier body, looping surface debris into teardrop or oval patterns.
We also have these features termed "cirular ablation moraines" (till) that is found on top of (old/ancient?) blockfields. Does anyone know of similar features elsewhere?
After a long, hard day, the cabin finally appears.
Fire catches, the room slowly wakes with warmth.
The body and mind ease, silence settles - a simple meal, nothing fancy.
Then outside, the sky unfolds in magic light,
and suddenly, every frozen hour feels worth it.
✨
#svalbard #fieldwork #glaciers
Long, freezing days in the Arctic
gear acting up, crevasse checks, quick calls in the cold. Fieldwork takes days of prep and recovery
Lately, I’ve met quite a few colleagues who don’t see much value in it. What does it say about our times that we prefer models over direct measurements?
#glaciology
Join me at the @igsoc.bsky.social Global Seminar ❄️ on Feb 18 (20:00 UTC). I'll be talking about basal sliding laws, flow laws, and how their non-dimensionalization simplifies #Glacier and #IceSheet #Modelling. 📉🧊
👉 Details: www.igsoc.org/event/igs-gl...
👉 Paper: doi.org/10.1017/jog....
In recognition of International Day of Women and Girls in Science (Feb 11), it's a great time to re-share this paper from 2010 - lots of progress and lots more room to grow. www.cambridge.org/core/journal...
Exciting news - abstract submissions are NOW OPEN for both the AI in Glaciology (June) & Radioglaciology (September) Symposia later this year!! (2nd circular coming soon for the International Symposium on Interactions of Ice Sheets and Glaciers with the Ocean, too!)
New paper out in #TheCryosphere about #Antarctic perennial #firn aquifers in the 21st century.
By using a #XGBoost #emulator we use a ensemble of 12, with different scenarios, RCMs and GCMs.
tc.copernicus.org/articles/19/...
Congrats 🥳
Meltwater lingered too long in the firn
fell in love with staying,
Refroze itself into ice.
When new meltwater comes,
there’s no room left to rest
runoff guaranteed,
the glacier lost it’s lovely buffer.
Observations from an accumulation area at 700m.asl in Svalbard.
#climatechange #glaciology #firn
A blue/green pool of water with a white, icy mountain glacier behind and snow-capped rocks in the background. Text on the image reads "Geographer Dr Caroline Clason has co-authored a UNESCO report on the effect of melting ice on people and planet."
We’re a leading centre for research into glaciers and ice sheets. Recently @carolineclason.bsky.social @geogdurham.bsky.social @durhamglaciology.bsky.social co-authored a major report for the UK National Commission for @unesco.org on the effect of melting ice on people and planet 👉 bit.ly/4r51PMl
New Paper Alert | Georgia Tech researchers developed a mathematical formula to predict the size of lakes that form on melting ice sheets. They discovered that lake depth and span are linked to the topography of the ice sheet. Their findings were published in @natcomms.nature.com.
Will be taking some personal time to process scientists not really knowing why ice is slippery. Please respect my privacy unless see me sprawled out on an icy sidewalk yelling, "No one knows why this happened to me!"
www.quantamagazine.org/why-is-ice-s...
Really interesting new paper showing ice "sliding mechanically destroys the ordered crystal lattice of ice, creating an amorphous layer that thickens as the sliding goes on". Maybe this explains some things related to subtemperate sliding?
Tbt Video out with some of the students doing a summer mass balance survey - or should we call it glacier surface water survey💦? So much water at the glacier surface when redrilling the mass balance stakes… 🙀
#Glaciology #Svalbard #Glaciermelt #Hydrology #ClimateChange #Arctic
New research in #Geology was cited in Daily Mail, highlighting the importance of subglacial geology for predicting sea-level rise. Seismic data reveal that the Greenland ice sheet rests on sediments that make glaciers more mobile and may accelerate ice loss.
Read the paper: geosociety.co/Yang_et_al
First Fieldwork 2026 in the books. Little snow so far this year in Svalbard and surprisingly little crusts at the glacier - snow interface suggesting a prompt switch from melt to accumulation this year without gradual cold + warm spells which would create these high density surface crusts. #GPR
TBT Fieldwork, Spring 2025
Arrived at a distant hut — first open the hut, fire and snow clearing. Slowly, warmth returns after a day in minus 20.
Svalbard fieldwork blends presence of harshness, long hours with awe. Even with a busy mind, the beauty is hard to be unnoticed.
All is reflection.
Every action ripples back.
The choices we make —
their shine hides a shadow.
Consumerism glitters,
but the cost
is buried deep in soil and sea.
One day we will be surprised —
surprised because we did not see
the reflections,
the causes,
the links
woven through everything.
Great work 🤗👏
🚨 Introducing the Mass Balance Machine (MBM): a #data-driven glacier MB model using topographic + climate features 🏔️ 👉 "Machine learning improves seasonal mass balance prediction for unmonitored glaciers” (Sjursen et al., 2025) doi.org/10.5194/tc-1...
@vaw-glaciology.bsky.social
#Refreezing
#SurfaceRunoff
❄️👉💧
Current measurements and models often overestimate how much meltwater from Greenland’s ice sheet enters the ocean because they miss key retention processes.
Much meltwater refreezes in porous ice or ponds, cutting actual runoff by 9–15% compared to older estimates.
Sounds interesting …
Yay Sentinel 1D 🥳🥳🥳
❄️ Calling all glaciology PhD students! ❄️
Applications are now open for next year’s Karthaus Summer School. It’s a great experience and you will be very well fed. Apply here: www.projects.science.uu.nl/iceclimate/k...
It was a pleasure to organise the workshop with my amazing colleagues from APECS Norway! What a kick-off for #SvalbardScienceConference with early career researchers exploring Arctic careers, fieldwork, EDI, and collaboration. Thanks to all who joined and supported an inspiring day!
Did meltwater from circum-Arctic ice sheets trigger AMOC weakenings during past deglaciations? We think that we can present a convincing line of evidence, from the central Arctic to the North Atlantic. See our recent paper in QSR:
doi.org/10.1016/j.qu...
Screenshot that says "Sea Ice Today" and "Ice Sheets Today" Services Reduced. More information is stated: "Beginning October 15, 2025, NSIDC’s Sea Ice Today and Ice Sheets Today services will be reduced because of non-renewed funding. This means no new monthly and mid-month analysis posts for Sea Ice Today or regular posts for Ice Sheets Today, limited comparison tools, and reduced user support."
UGH! When will it end. 😭
"Effective October 15, 2025, due to non-renewed funding, NSIDC has suspended or reduced several Sea Ice Today tools and services."
nsidc.org/data/user-re...
Graphic showing Arctic sea-ice concentration on 10/13/2025 near Svalbard, Greenland, and Novaya Zemlya. A line of 85°N latitude is also annotated along with the Atlantic Ocean.
Here's a closer look at the record low sea ice conditions around #Svalbard. The ice edge is still close to the 85°N line of latitude along the Atlantic front. That's a lot of open water into the Barents Sea region! Data from AMSR2.
Congrats 🙌 🥂
