Wolfgang Schwanghart

Well, the probability of such a landslide is difficult to estimate, given that it's probability in time and space. But such events are not uncommon. It needs to be sufficiently large (here, a max. landslide depth of 150 m) to displace water that finally overtops.

Ok, next level. Simulating a landslide hitting a proglacial lake, producing a #GLOF. Note that the flood is (not yet) able to erode but just spills through two channels. In reality, the displacement wave would probably incise and widen the outflow channels, triggering a more severe flood downstream.

GraphFlood in TopoToolbox I have featured GraphFlood before (and here), but now it’s finally time to write about its MATLAB implementation. We had a very productive mini-hackathon today and one of the results is a bin…

GraphFlood is finally available in the MATLAB version of TopoToolbox. Check out my latest blog entry. Simulating steady flow has never been as easy as this.
topotoolbox.wordpress.com/2025/07/30/g...
#TopoToolbox #Hydrology #Hydraulics #Flood

Seafloor slopes control submarine canyon distribution: A global analysis Submarine canyon distribution is driven by slope inclination, linking tectonic and thermal forces to canyon formation.

Just out in Science Advances with @topotoolbox.bsky.social:
Submarine canyons preferentially form where the seafloor is steepest—not where rivers bring much sediment. Our global study reveals what controls canyon distribution and the world’s oceans.
www.science.org/doi/10.1126/...

Die am Computer erzeugte Illustration zeigt Unterwasser-Canyons. Bildquelle: W. Schwanghart; Datenquelle: Beeson, J.W., Dartnell, P., Watt, J.T., 2025, Composite bathymetric surface of the northern Cascadia Margin offshore Washington: U.S. Geological Survey data release, https://doi.org/10.5066/P14SLWTD.

🌊 Tiefsee-Canyons: riesig, verborgen – und klimarelevant.
Eine neue Studie von @sedsystems.bsky.social und @topotoolbox.bsky.social zeigt: Entscheidend für deren Entstehung ist nicht die Nähe zu Flüssen, sondern wie steil der der Meeresboden ist.
#ScienceAdvances
➡️ Alle Infos: tinyurl.com/a3kekm2m

Python TopoToolbox and GraphFlood Many have probably waited for this. And here we go. Let’s try out TopoToolbox’ Python version. Our aim will be to calculate flow depth along the Big Tujunga river and display the result…

Here's my first blog entry on using #TopoToolbox with #Python. See how to run Boris Gailleton's GraphFlood and display water depth along with a longitudinal river profile.
topotoolbox.wordpress.com/2025/04/15/p...

Name it, @martinhtrauth.bsky.social

Recent observations and glacier modeling point towards near-complete glacier loss in western Austria (Ötztal and Stubai mountain range) if 1.5 °C is not met Abstract. Most glaciers in Austria are expected to disappear in the coming decades. The general trend to deglaciation is apparent from observations of past glacier change as well as projections of fut...

Austria without mountain glaciers. We can do better!

❄️
#scicomm
#climate
#science
🧪 🌎 🔬 ⚒️
#geosky
#ClimateHealth
#ClimateAction

tc.copernicus.org/articles/19/...

Finally some sedimentation in TTLEM #TopoToolbox

Converting stream networks to shapefiles in TT3 What’s new in TopoToolbox 3? Well, we have restructured the toolbox a lot, making distribution and installation easier. However, there are also some new features. One of these features is the…

TopoToolbox 3 has some cool new functions. Here's how to export stream networks to shapefiles (and kml): topotoolbox.wordpress.com/2025/04/09/c...
#TopoToolbox #MATLAB #terrainanalysis #geomorphometry #geomorphology

Heard of TopoToolbox? Now is your chance to contribute to the development of this useful toolset, now w/ python & R implementations! Check out the @egu.eu GM blog post blogs.egu.eu/divisions/gm... by @topotoolbox.bsky.social on a recent hackathon and new #github organization github.com/TopoToolbox/

Too bad you couldn't make it this time. But let's see. There will be a second time!

The community development of TopoToolbox starts now Please contact one of the GM blog editors, Emily (eb2043@cam.ac.uk) or Emma (elodes@asu.edu), if you’d like to contribute on the blog!  by Wolfgang Schwanghart (Researcher, University of Potsdam, Germ...

Last week, we had a #TopoToolbox Hachathon in Berlin. Read more about it here blogs.egu.eu/divisions/gm...

Angesichts der aktuellen Ergebnisse der Merz-Union & SPD zur Klimapolitik, hier noch einmal die Worte von Prof. Latif: "Ich kann Politikerinnen und Politikern nichts mehr beibringen. Die wissen alles. Da gibt es keinen Beratungsbedarf mehr. Sie handeln wider besseren Wissens".

The Sikkim flood of October 2023: Drivers, causes, and impacts of a multihazard cascade On 3 October 2023, a multihazard cascade in the Sikkim Himalaya, India, was triggered by 14.7 million cubic meters of frozen lateral moraine collapsing into South Lhonak Lake. The impact generated an ...

On #WorldGlacierDay, our paper in @science.org about the Sikkim glacial lake disaster has been published in its final form: 🧪⚒️❄️
www.science.org/doi/10.1126/...

#TopoToolbox has a scale bar that you can add to some axes. Now, the scale bar also works with axes that represent geographical coordinates. Nice to see how the length of the scale bar changes once you pan northward.

Direct effects of mountain uplift and topography on biodiversity Biodiversity hotspots in Earth’s mountain ranges suggest a strong connection between topographic development and biological processes. However, it remains unclear whether high biodiversity in mountain...

Our paper on how landscape evolution impacts the trajectory of life is out in @science.org! Work by two great post-docs in @iuearth.bsky.social and collaboration with the brilliant Tara Smiley of Stony Brook resulted in this.

www.science.org/doi/10.1126/...

Heritage Foundation and Allies Discuss Dismantling the EU The group that drafted a key blueprint for Donald Trump’s second term convened a meeting in Washington D.C. this week to consider proposals for bulldozing the European Union (EU). The Polish investiga...

“DeSmog can also reveal that the Heritage Foundation has been holding private meetings with European politicians in recent months, as the group attempts to forge new alliances on the continent.”

In Deutschland war die Foundation vor kurzem wieder bei der CDU (s.u.)

www.desmog.com/2025/03/14/h...

@tagesspiegel.de schreibt heute besonders mutig 🙃.

First of two days #TT3hackathon and it’s going just great! #topotoolbox

Well, I guess 10-20% of what‘s possible.

I played a beast tonight. You may like it, @jlkavanaugh.bsky.social

Topography and the Terrestrial Water Cycle - Eos The relationship between topography and the terrestrial water cycle has been documented for thousands of years, yet there is still much to learn about Earth’s complex dynamics – both above, at, and be...

Our current paper on topography and the terrestrial water cycle is featured in an Editor’s Vox in @eos.org eos.org/editors-vox/... @unipotsdamwater.bsky.social

Where's Armin?

X is down, and TSLA lost 10% only today. What a great day.

Exciting news!!!🎉 We are thrilled to announce the Keynote Speakers and the Schedule for the 2025 #SteepestDescentMeeting !!!🌍🏞

We are going to have exciting talks from
@aaronbufe.bsky.social, from LMU Munich, and Kimberly Huppert, from City College of New York (CCNY)!🤩 (1/2)

Introducing the New EIC of JGR: Earth Surface - Eos Learn about the person taking the helm of JGR: Earth Surface and their vision for the coming years.

We are delighted to share that Dr. Ann Rowan has taken over as the Editor-in-Chief of JGR: Earth Surface. 🎉

In @eos.org , learn about her research interests and vision for the journal in the coming years: buff.ly/y3pZX8c

#AGUPubs #STEM #geomorphology #EarthScience @jgrearthsurface.bsky.social

NOTHING can destroy a Cyber Truck….😎😏
#WorldBollardAssociation

Landscape Hydrology tenure track position at ZALF @zalf.bsky.social jobs.zalf.de/jobposting/3...

Europe’s Tesla sales drastically decrease electrek.co/2025/03/03/t...
… and so does the stock price.