Nils Hählen
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nilshaehlen.bsky.social
Nils Hählen
@nilshaehlen.bsky.social
89 followers 77 following 4 posts
Passionate about mountains and natural hazards, Head of Natural Hazards Division at the Office of Forests and Natural Hazards Canton Bern, Switzerland
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Reposted by Nils Hählen
slfdavos.bsky.social
Avalanche winter of 1951:
⁠They are the cheapest and most important form of avalanche protection in terms of area – and they grow back naturally: forests. What the SLF researched after the avalanche winter of 1951: www.slf.ch/en/news/aval...
⁠
#SLF #SLFDavos #Snow #Avalanche #Winter #forest
February 9, 2026 at 11:00 AM
Reposted by Nils Hählen
eth-eaps.bsky.social
The ETH Swiss GeoLab, a newly established applied research facility, is recruiting an experienced administrative professional as Office Manager. Be part of the pioneering GeoLab and contribute to its operational foundations and workplace culture.
Office Manager at ETH Swiss GeoLab
ETH Zurich is establishing the ETH Swiss GeoLab, a pioneering applied research facility located in Lucerne (initially based in Zurich). The GeoLab focuses on multidisciplinary collaboration and…
www.jobs.ethz.ch
February 6, 2026 at 10:32 AM
Reposted by Nils Hählen
slfdavos.bsky.social
#Job am #SLF in #Davos: Für die Forschungsgruppe #Schutzmassnahmen suchen wir eine/n neue/n Mitarbeiter/in. Zu den Aufgaben gehören u.a. Gutachter- und Beratertätigkeit und die Planung von Schutzmassnahmen.
Alle Infos und Bewerbung: apply.refline.ch/273855/1836/...
January 28, 2026 at 7:31 AM
Reposted by Nils Hählen
geomountains.bsky.social
🌄 New #MeteoSwiss research: Swiss lowlands heat up faster in autumn & winter as fog declines, while mid-elevations warm more in spring due to snow loss.

➡️ Some popular #climate datasets miss these elevation-specific signals entirely. Time-consistent, high-resolution observations matter. 🌍❄️
mtnresearchmri.bsky.social Mountain Research Initiative @mtnresearchmri.bsky.social · 12d
⛰️🌡️ Switzerland isn’t warming evenly & #OurChangingMountains are telling the story.

New #MeteoSwiss research shows lowlands heat up faster in autumn & winter as fog declines, while mid-elevations warm more in spring due to snow loss.

📖 Read more: bit.ly/4aji5mZ

#MountainResearch #ClimateData #Alps
January 28, 2026 at 3:58 PM
Reposted by Nils Hählen
retoknutti.bsky.social
Als direkte Demokratie braucht die Schweiz vielfältige & unabhängige Medien. Über 600 Professor:innen aus allen Sprachregionen & Disziplinen setzen sich deshalb ein für einen starken Service public und sagen «Nein» zur Halbierungsinitiative.

➡️ www.wissenschaft-fuer-den-service-public.ch
Professorinnen und Professoren gegen die Halbierungsinitiative – Warum wir Professorinnen und Professoren uns für einen starken Service public einsetzen und die SRG-Halbierungsinitiative ablehnen
www.wissenschaft-fuer-den-service-public.ch
January 26, 2026 at 3:27 PM
Reposted by Nils Hählen
nh.egu.eu
Throwback Thursday ⏪ In case you missed past posts from our blog 👀

Today we are heading to Switzerland 🇨🇭, where Christophe Lambiel answers our questions about the Blatten landslide that occurred in May 2025.

Check the article to learn more about the event: blogs.egu.eu/divisions/nh...

#EGUblogs
The Blatten landslide in Switzerland
In the morning of May 28, 2025, the picturesque Swiss alpine village of Blatten sat quiet and serene in the Lötschen Valley. Exceptionally quiet, in fact, as the village was evacuated on May…
blogs.egu.eu
January 22, 2026 at 2:02 PM
Reposted by Nils Hählen
mrdjournal.bsky.social
A new article by Jean Miczka and colleagues analyzes how mountain huts in the western European Alps are being adapted to climate change, what the challenges are, and how adaptation could be improved. Recommendations include ensuring long-term coordination. Find out more: doi.org/10.1659/mrd....
Saleinaz Mountain Hut in the Swiss Alps is perched high above a steep slope, facing the cliffs and glaciers of Mont Dolent. The hut is small and built of stone, with a metal roof and two wooden extensions attached. Next to it is a small terrace with two tables and a few chairs. Photo by Jean Miczka.
January 13, 2026 at 10:03 AM
Reposted by Nils Hählen
slfdavos.bsky.social
How do avalanches affect pylons and other sensitive #infrastructure? Using detailed #simulations, #SLF researcher @mjkohler.bsky.social shows that the compressibility of #snow initially reduces #avalanche pressure, but that at high speeds this buffer suddenly fails.
More: www.slf.ch/en/news/aval...
January 7, 2026 at 9:41 AM
Reposted by Nils Hählen
copernicusecmwf.bsky.social
🌡️ November 2025 was the third-warmest November on record globally, keeping 2025 on track to be the second- or third-warmest year recorded. The global three-year average temperature for 2023–2025 will likely exceed 1.5°C above pre-industrial levels for the first time. 

Read more ⬇️
December 11, 2025 at 11:56 AM
Reposted by Nils Hählen
luigijorio.bsky.social
The catastrophic collapse of the Birch Glacier that wiped out the Swiss mountain village of Blatten in May has triggered an unprecedented scientific effort to understand how a mountainside could break up so violently – and what might come next.
Unstable slopes and warming peaks: scientists race to understand Blatten collapse
The collapse of the glacier that wiped out the Swiss mountain village of Blatten in May has triggered an unprecedented scientific effort.
www.swissinfo.ch
December 12, 2025 at 3:15 PM
Reposted by Nils Hählen
slfdavos.bsky.social
#Job at #SLF in #Davos: We are looking for a Scientist in Integrated Modelling of #Risk Development in Global Change.
More information and application: apply.refline.ch/273855/1812/...
December 4, 2025 at 2:53 PM
Reposted by Nils Hählen
slfdavos.bsky.social
#Job at #SLF in #Davos: We are looking for a #Postdoc in #climate impacts on hydrological extreme events. More information and application: apply.refline.ch/273855/1810/...

@hyclimm.bsky.social @manuelaibrunner.bsky.social
December 1, 2025 at 1:48 PM
Reposted by Nils Hählen
wslresearch.bsky.social
#Avalanches are of key importance to #glaciers worldwide. An international research team led by Marin Kneib (WSL & ETH Zurich) shows that up to 22% of the snow on glaciers comes from avalanches. WSL-News: www.wsl.ch/en/news/aval... @marinkneib.bsky.social @vaw-glaciology.bsky.social
Avalanches are of key importance to glaciers worldwide
An international research team shows that avalanches contribute significantly to the health of many glaciers.
www.wsl.ch
November 26, 2025 at 11:29 AM
Reposted by Nils Hählen
extremeswsl.bsky.social
Was bedeuten Extremereignisse für die Schweiz – heute & morgen?
Unsere neue Web-App macht’s erlebbar!
Astrid hat sie am Treffpunkt Science City (ETH) vorgestellt – und besonders schön: Auch die Kinder waren begeistert dabei!
➡️ extremesapp.wsl.ch/de
November 11, 2025 at 12:27 PM
Reposted by Nils Hählen
ethz.ch
MeteoSwiss, ETH Zurich, and C2SM present the new Swiss climate scenarios.

These show how the Swiss climate will change if the global average temperature rises by 3 degrees. ethz.ch/en/news-and-...

@meteoschweiz.ch, @usyseth.bsky.social #klimaszenarien #meteoschweiz #ETH #C2SM #NCCS
Climate change particularly pronounced in Switzerland
Switzerland will become drier and hotter, experience less snow and face heavier rainfall in the future. Those are the conclusions reached by climate researchers from its Federal Office of Meteorology ...
ethz.ch
November 4, 2025 at 10:17 AM
Reposted by Nils Hählen
vaw-glaciology.bsky.social
🌍 When nature shows its force

Rockfalls, glacier collapses & debris flows are becoming more intense in a warming world. Join our VAW-glaciology group member Mylène Jacquemart at Treffpunkt Science City for her talk “Es rumort am Berg, Klimawandel und alpine Naturgefahren”

ethz.ch/de/news-und-...
November 3, 2025 at 1:40 PM
Reposted by Nils Hählen
slfdavos.bsky.social
#JobAlert in #Davos: For the #SLF Alpine Remote Sensing research group we are looking for a scientific assistant. If you are interested in working with #satellite data, check the following link for more information: apply.refline.ch/273855/1787/...
#CERC
October 22, 2025 at 2:25 PM
Reposted by Nils Hählen
slfdavos.bsky.social
In the red zone: New #SLF model reveals altitude-dependent #snow trends across the whole of Switzerland for the first time: average snow depths have been decreasing for decades.

More details: www.slf.ch/en/news/in-t...

📷 C. Marty, J. Götte / SLF

#climatechange
October 20, 2025 at 1:05 PM
Reposted by Nils Hählen
slfdavos.bsky.social
Tour de CCAMM: noch bis 10. Oktober ist die Anmeldung möglich!
Infos und Anmeldung: www.slf.ch/de/veranstal...
October 6, 2025 at 9:27 AM
Reposted by Nils Hählen
frediotto.bsky.social
The summer is over - and for about 16,600 people across 854 European cities that doesn't mean autumn comes, but death. People who would still be alive if it wasn't for our burning of fossil fuels. - New study with @lshtm.bsky.social www.imperial.ac.uk/grantham/pub...
September 17, 2025 at 10:09 AM
Reposted by Nils Hählen
vaw-glaciology.bsky.social
Incredible ice loss measured again at #Konkordiaplatz on the #Aletsch #Glacier, home to the thickest ice in the #Alps (still about 800 m!). Yesterday’s survey revealed another –4.6 m of ice gone in just one year. :(
Measurements by @matthias-huss.bsky.social for GLAMOS
September 16, 2025 at 1:19 PM
Reposted by Nils Hählen
kristencook.bsky.social
Calling for EGU 2026 session proposals! If you have an idea for a geomorphology session, head to meetingorganizer.copernicus.org/EGU26/provis... and enter it in. Sessions on new topics and themes are extremely welcome! Help to build a great programme for EGU26!
Call for session proposals
meetingorganizer.copernicus.org
August 20, 2025 at 5:39 PM
Reposted by Nils Hählen
hyclimm.bsky.social
🤩New paper from our team member @cchartierrescan.bsky.social entitled 'Snow drought propagation and its impacts on streamflow drought in the Alps' published on Environmental Research Letters! Big congrats! Check out more details here: iopscience.iop.org/article/10.1...

#ClimateChange #Hydrology
August 27, 2025 at 3:16 PM
Reposted by Nils Hählen
matthias-huss.bsky.social
Getting used to this image: #glaciers almost completely naked - unprotected by the white snow - in August...
While July was good for glaciers after record-melt in June, the new heat wave again results in major ice loss
@vaw-glaciology.bsky.social
August 11, 2025 at 1:21 PM
Reposted by Nils Hählen
slfdavos.bsky.social
#Satellites reveal early signs of slope instability: #SLF scientist Andrea Manconi shows that #radar monitoring with satellites help to detect slope instabilities like at Blatten years in advance.
For details check the #ESA news article: eo4society.esa.int/2025/08/08/s...
@esa.int @esaearth.esa.int
Satellite radars reveal early signs of slope instability years before Blatten rock/ice avalanche - eo science for society
On 28 May 2025, a massive rock/ice avalanche detached from the Birch Glacier above the village of Blatten in the Lötschental valley (Valais, Switzerland).
eo4society.esa.int
August 8, 2025 at 8:02 AM