Willem van der Bilt
@willemvdbilt.bsky.social
390 followers 240 following 12 posts
Polar paleoclimatologist, Principal Investigator
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willemvdbilt.bsky.social
This year's field kit 👇🏼was particularly minimalist😬, allowing us to sample as many #Greenland lakes as possible, to find the traces of tsunamis, triggered by rockfalls, in the wake of rapidly retreating #glaciers.
Minimalist lake coring in Scoresby Sund, East Greenland
Reposted by Willem van der Bilt
bjerknes.uib.no
🧪 New research reveals that plants and algae survived in a Arctic lake on Svalbard, during the coldest phase of the last ice age, when the region was thought to be buried under ice.

How is that possible?

Read this paper led by @willemvdbilt.bsky.social

bjerknes.uib.no/en/news/arct...
Lake persisted where ice was expected in Arctic oasis
Researchers discovered that plants and algae survived in a small Arctic lake during the coldest period of the last ice age, when the area was assumed to…
bjerknes.uib.no
willemvdbilt.bsky.social
📢 Interested in µm-scale scanning of lake sediments? Then consider submitting an abstract to our session 👇🏼 at the @ialipa2025.bsky.social conference, hosted 6-10 October in Aix-les-Bains. You can do so until May 30 📅, using this link: lnkd.in/dDeyrHGx. @gfz.bsky.social @bjerknes.uib.no @unibe.ch
Reposted by Willem van der Bilt
geops-upsaclay.bsky.social
📢 Preparations for the 3rd Paleolimnology & Limnogeology International Symposium are in full swing! We invite submissions to our Glacier variability session VI-1 🧊

🌐 ialipa-2025.sciencesconf.org/resource/pag...

@virtual-ialipa2025.bsky.social @willemvdbilt.bsky.social
#lake #sediment #GLOF
willemvdbilt.bsky.social
An impression of the field campaign that led to a recent paper in @commsearth.bsky.social about the potential role of increased snowfall in a warmer Arctic on regional glaciers:
youtu.be/l8CvcqjGM1Q @bjerknes.bsky.social
Did Åsgardfonna on Svalbard survive during a warmer past?
YouTube video by Bjerknes Centre for Climate Research
youtu.be
willemvdbilt.bsky.social
A call for abstracts to our @eurogeosciences.bsky.social #EGU2025 "Winds of change" session 👇. Do you work on polar coastal sediment archives to extract information about past changes in storminess? Then consider submission via lnkd.in/dq-xh8mu. Happy holidays 🙏
@bjerkness
willemvdbilt.bsky.social
Short impression of this summer's 1700 km long sailing trip to study the ancient raised beaches on Svalbard (Svenskøya island) and learn more about the links between ice sheet evolution and sea-level change in the past.
willemvdbilt.bsky.social
This isn't Mars, but Svenskøya, a small island in the eastern Barents Sea. Dating bone and wood from old beaches will hopefully deepen our understanding of links between ice sheet and sea level changes @bjerknes.bsky.social
willemvdbilt.bsky.social
During our 1st attempt to core this Svalbard lake, we found it ice-covered. We had more luck later. The sediments contained dense layers. Microscopy shows these contain minerals that form when oxygen is scarce. In the Arctic, such conditions are often caused by what hindered coring  - ice coverage.
willemvdbilt.bsky.social
Torn sediments, slumped at a 90-degree angle, and a turbidite on top: diagnostic features of an an earthquake deposit. This one happened 9500 yrs ago on Arctic Svalbard as rapid glacier melt re-activated faults: will this happen again in the future? @bjerknes.bsky.social
willemvdbilt.bsky.social
These Svalbard sediments cover the past 100 yrs. Molecular imaging allows 100s of temperature biomarker measurements on this slice of mud, and compare these against weather data. This new approach places recent Arctic summer warming in a 14000 yr context @bjerknes.bsky.social
Reposted by Willem van der Bilt
haraldsodemann.bsky.social
Looking for a 3-year PostDoc to join our team at University of Bergen in the #ISLAS_project and #ISOSCAN to work at the interface between meteorology and hydrology. Use stable isotope models and data to study how Scandinavian mountains extract water from weather systems: tinyurl.com/imetb