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Wolfgang Schwanghart

@topotoolbox.bsky.social
429 followers 375 following 83 posts

Geomorphologist at University of Potsdam, editor of @egu-esurf.bsky.social, developer of #TopoToolbox, cyclist topotoolbox.wordpress.com, github.com/wschwanghart, www.earth-surface-dynamics.net

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Wolfgang Schwanghart @topotoolbox.bsky.social · 15/09/2025
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.
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Wolfgang Schwanghart @topotoolbox.bsky.social · 30/07/2025
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
topotoolbox.wordpress.com
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…
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Sedimentary Systems Group - FU Berlin @sedsystems.bsky.social · 12/06/2025
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/...
science.org
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.
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Freie Universität Berlin @freieuniversitaet.bsky.social · 12/06/2025
🌊 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
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.
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Wolfgang Schwanghart @topotoolbox.bsky.social · 16/04/2025
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...
topotoolbox.wordpress.com
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…
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Wolfgang Schwanghart @topotoolbox.bsky.social · 15/04/2025
Name it, @martinhtrauth.bsky.social
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Paul Bierman @paul-bierman.bsky.social · 13/04/2025
Austria without mountain glaciers. We can do better! ❄️ #scicomm #climate #science 🧪 🌎 🔬 ⚒️ #geosky #ClimateHealth #ClimateAction tc.copernicus.org/articles/19/...
tc.copernicus.org
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...
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Wolfgang Schwanghart @topotoolbox.bsky.social · 11/04/2025
Finally some sedimentation in TTLEM #TopoToolbox
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Wolfgang Schwanghart @topotoolbox.bsky.social · 09/04/2025
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
topotoolbox.wordpress.com
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…
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emmalodes.bsky.social @emmalodes.bsky.social · 31/03/2025
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/
blogs.egu.eu
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Wolfgang Schwanghart @topotoolbox.bsky.social · 29/03/2025
Last week, we had a #TopoToolbox Hachathon in Berlin. Read more about it here blogs.egu.eu/divisions/gm...
blogs.egu.eu
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...
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Christoph Bautz @christophbautz.bsky.social · 27/03/2025
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".
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Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · 21/03/2025
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/...
science.org
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 ...
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Wolfgang Schwanghart @topotoolbox.bsky.social · 25/03/2025
#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.
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geomorphyuggs.bsky.social @geomorphyuggs.bsky.social · 24/03/2025
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/...
science.org
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...
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Maja Göpel @beyond-ideology.bsky.social · 21/03/2025
“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...
desmog.com
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...
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Wolfgang Schwanghart @topotoolbox.bsky.social · 20/03/2025
@tagesspiegel.de schreibt heute besonders mutig 🙃.
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Wolfgang Schwanghart @topotoolbox.bsky.social · 18/03/2025
First of two days #TT3hackathon and it’s going just great! #topotoolbox
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Wolfgang Schwanghart @topotoolbox.bsky.social · 15/03/2025
I played a beast tonight. You may like it, @jlkavanaugh.bsky.social
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Wolfgang Schwanghart @topotoolbox.bsky.social · 13/03/2025
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
eos.org
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...
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Tagesspiegel @tagesspiegel.de · 13/03/2025
Where's Armin?
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Wolfgang Schwanghart @topotoolbox.bsky.social · 10/03/2025
X is down, and TSLA lost 10% only today. What a great day.
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The Steepest Descent Meeting @steepestdescent.bsky.social · 06/03/2025
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)
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AGU (American Geophysical Union) @agu.org · 05/03/2025
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
buff.ly
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.
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World Bollard Association™️ @worldbollardassoc.bsky.social · 15/02/2025
NOTHING can destroy a Cyber Truck….😎😏 #WorldBollardAssociation
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Wolfgang Schwanghart @topotoolbox.bsky.social · 04/03/2025
Landscape Hydrology tenure track position at ZALF @zalf.bsky.social jobs.zalf.de/jobposting/3...
jobs.zalf.de
Tenure Track Scientist (m/f/d) on “Landscape Hydrology”
This Classic Tenure Track Call invites applications of scientists integrating hydrological research from the plot to the landscape scale considering system effects. The position explicitly addresses t...
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Wolfgang Schwanghart @topotoolbox.bsky.social · 03/03/2025
Europe’s Tesla sales drastically decrease electrek.co/2025/03/03/t... … and so does the stock price.
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European Geosciences Union (EGU) @egu.eu · 03/03/2025
Hello Bluesky! EGU is pleased to be able to activate our account here, and share all the exciting news about the upcoming General Assembly: #EGU25, our #OpenAccess publications and more! Several of our Divisions will be making the move over from Twitter/X too, so keep an eye out for your favourites!
Blue background with yellow EGU logo and text that reads "European Geosciences Union".
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Richard Ott @georichard.bsky.social · 28/02/2025
Exciting interdisciplinary postdoc opportunity, combining landscape evolution, and the evolution of species. You might also end up collaborating with me, on constraining mountain building in the Northern Andes. jobs.ethz.ch/job/view/JOP...
jobs.ethz.ch
Postdoctoral Researcher in Tectono-Geomorphic Processes and Mountain Biodiversity
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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 27/02/2025
You can still apply !
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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 27/02/2025
You can still apply 🌊!
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Paul Bierman @paul-bierman.bsky.social · 27/02/2025
This is the kinda shit that happens when you ignore science and scientists. Just go ask people whose homes burned in wildfires, were swept away by floods, or are inundated by rising sea level. In red states and blue. Hear no climate harm, see no climate harm, do lots of climate harm. 🧪 #scicomms
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Wolfgang Schwanghart @topotoolbox.bsky.social · 26/02/2025
Check out #ttminvoellmy, a #MATLAB and #TopoToolbox software to simulate rock avalances ⛰️. You can download the toolbox here: github.com/TopoToolbox/... . Reply with videos of your simulations here 🔽
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Landscapes Live Seminar series @landscapeslive.bsky.social · 23/02/2025
Hello Bluesky! 🦋🏞️ We are organizing weekly seminars for scientists to present their research in and around geomorphology. Affiliated with @eurogeosciences.bsky.social GM More information on our website: www.landscapeslive.org
landscapeslive.org
Landscapes Live
Landscapes Live is a weekly online seminar series freely accessible to the international scientific community interested in various aspects of geomorphology. Our talks take place on Zoom every Thursda...
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Monica Gonzalez-Marquez @aeryn-thrace.mastodon.social.ap.brid.gy · 14/02/2025
Public notice: If you want to read a research article, please don't pay for the paper on the publisher's website. All that money goes to the publisher, we don't get any of it. Instead, contact us. We'll be happy to send you the paper :-).
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Wolfgang Schwanghart @topotoolbox.bsky.social · 21/02/2025
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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 21/02/2025
Gestern Abend sollte ich auf einem Podium kurz die wichtigsten Folgen der Klimawandels zusammenfassen. Ich war nicht ganz zufrieden mit meiner Antwort. Nicht prägnant genug, manches vergessen... Heute habe ich ChatGPT gefragt - und war überrascht, wie kompetent die Antwort war! Probiert es selbst.
ChatGPT, welche Folgen wird der Klimawandel bis 2050 haben?
Der Klimawandel wird bis 2050 voraussichtlich weitreichende Folgen haben, sowohl global als auch regional. Hier sind einige der wichtigsten Auswirkungen:
1. Temperaturanstieg
• Die globale Durchschnittstemperatur könnte um 1,5 bis 2,5 °C über das vorindustrielle Niveau steigen.
• Hitzewellen werden häufiger und intensiver, besonders in Europa, Nordamerika und Asien.
2. Extremwetterereignisse
• Mehr Stürme, Überschwemmungen und Dürren, besonders in Küstenregionen und trockenen Gebieten.
• Zunahme von Waldbränden, vor allem in Südeuropa, Kalifornien und Australien.
3. Meeresspiegelanstieg
• Der Meeresspiegel könnte um 20 bis 30 cm steigen, mit lokalen Unterschieden.
• Küstenstädte wie Hamburg, New York und Jakarta sind besonders gefährdet.
• Höhere Wahrscheinlichkeit von Sturmfluten und Küstenerosion.
4. Ökosysteme und Biodiversität
• Korallenriffe (z. B. das Great Barrier Reef) könnten zu 90 % absterben.
• Viele Tier- und Pflanzenarten werden durch veränderte Lebensräume bedroht.
• Verschiebung von Fischpopulationen, was Fischereiindustrien stark beeinflussen könnte.5. Auswirkungen auf die Landwirtschaft
• Ernteausfälle durch Dürren und Hitzewellen in Ländern wie Indien, den USA und Südeuropa.
• Höhere Lebensmittelpreise und steigende Hungerkrisen.
• Einige Regionen (z. B. Nordeuropa) könnten von längeren Wachstumsperioden profitieren.
6. Gesundheitliche Folgen
• Mehr hitzebedingte Todesfälle, besonders in Städten.
• Verbreitung von Tropenkrankheiten wie Malaria und Dengue-Fieber in neue Regionen.
• Luftverschmutzung könnte zunehmen und Atemwegserkrankungen verstärken.
7. Soziale und wirtschaftliche Folgen
• Klimaflüchtlinge: Millionen Menschen könnten ihre Heimat verlassen müssen.
• Wirtschaftliche Schäden in Billionenhöhe durch Naturkatastrophen und Ernteeinbußen.
• Steigende Konflikte um Wasser und Ressourcen, besonders in trockenen Regionen wie dem Nahen Osten und Afrika.
Fazit
Bis 2050 wird der Klimawandel tiefgreifende Auswirkungen auf Umwelt, Wirtschaft und Gesellschaft haben. Maßnahmen zur CO₂-Reduktion und Anpassung sind entscheidend, um die schlimmsten Folgen zu verhindern.
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Wolfgang Schwanghart @topotoolbox.bsky.social · 20/02/2025
Tomorrow's the last day of my one-week #BSc level #TopoToolbox course. At the end, students will be able to calculate stream networks, analyze them, and combine geospatial modelling and visualization techniques. This course has a steep learning curve, but is also great fun.
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Dr. Felix Henselowsky @henselowsky.bsky.social · 20/02/2025
In Anbetracht aktueller internationaler und nationaler Entwicklungen haben wir vom #VGDH eine Stellungnahme aus Sorge um #Wissenschaftsfreiheit und #Diversität verfasst. Nicht nur, aber auch ein Thema was die #Geographie betrifft vgdh.de/aktuelles/20...
Text "Stellungnahme des VGDH aus Sorge um Wissenschaftsfreiheit und Diversität", welche im Post verlinkt ist
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Paul Bierman @paul-bierman.bsky.social · 19/02/2025
I argue here we need to follow the science not the whims of politicians. Greenland's value is its ice. Free to republish. Pass it on. Spread the word. We need to bring science and rational thought back into the national dialogue . @us.theconversation.com 💙📚🧪 theconversation.com/greenlands-r...
theconversation.com
Greenland’s rapidly melting ice and landslide-prone fjords make the oil and minerals Trump covets dangerous to extract
Melting ice, thawing permafrost and crumbling fjord walls are just a few of the risks climate change poses for those living and working in Greenland.
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Paul Bierman @paul-bierman.bsky.social · 18/02/2025
Slashing of Federal science support - so awful for people who have worked so hard to support America's science enterprise for at the National Science Foundation. This is hardly the way to innovate and solve pressing problems like climate change and biodiversity. www.science.org/content/arti...
science.org
Trump Tracker: Firings, lawsuits, and U.S. science in chaos
Follow President Donald Trump’s impact on U.S. research and science globally
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Reviews of Geophysics @handle.invalid · 18/02/2025
In a new review paper, the authors combine literature review and data synthesis to explore the influence of topography on the global terrestrial water cycle, from the atmosphere down to the groundwater @topotoolbox.bsky.social @egu-esurf.bsky.social @agu.org #AGUPubs doi.org/10.1029/2023...


Example photos and satellite images illustrating how topography influences the terrestrial water cycle and the land surface. (a) Orographic lift of moist air leads to cloud formation along the Santa Lucia Mountains south of Monterey, California (photo by Robert Schwemmer; https://commons.wikimedia.org/wiki/File:Wea03310_-_Flickr_-_NOAA_Photo_Library.jpg), (b) topography is expressed in typical landforms in the Tagliamento valley in Italy, namely mountains (Julian Alps) and plains (with Gemona del Friuli; photo by Mirco Peschiutta; https://imaggeo.egu.eu/view/5046/), (c) vegetation zonation on Mount Kilimanjaro, Tanzania, spanning an elevation range of almost 5,000 m, resulting in strong climatic gradients (image taken from Google Earth; Image Landsat/Copernicus), and (d) large-scale redistribution of water in the Indus river valley, fed by the Indus flowing from the Tibetan Himalayas (image taken from Google Earth; Data SIO, NOAA, U.S. Navy, NGA, GEBCO; Image Landsat/Copernicus).
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Wolfgang Schwanghart @topotoolbox.bsky.social · 18/02/2025
"Remember Trump’s Florida estate, Mar-a-Lago. Four feet of sea-level rise floods the lower lawn. Six feet and the Atlantic Ocean may trickle into the lobby. Melt Greenland’s ice sheet and only Mar-a-Lago’s upper story and tower protrude above the waves" @paul-bierman.bsky.social tinyurl.com/bdd559ww
undark.org
We Need Greenland. But Not in the Way Trump Thinks.
Opinion | The newly inaugurated U.S. president is missing the real strategic and economic value of the island: its ice.
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Wolfgang Schwanghart @topotoolbox.bsky.social · 18/02/2025
Good morning, #Berlin.
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Wolfgang Schwanghart @topotoolbox.bsky.social · 17/02/2025
Der gleiche Fehler, immer wieder, überall. Man schwächt die Rechten nicht, indem man ihre Themen übernimmt !!!
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Max B 💙 🔶 🇺🇦 🇬🇧 🇪🇺 @maxbrockbank.com · 16/02/2025
This should be happening EVERYWHERE!
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Doug Jerolmack @dougjerolmack.bsky.social · 16/02/2025
Time for a #ScienceMarchOnWashington with star power like Bill Nye. We need leaders like @zekeemanuel.bsky.social petitioning college presidents to go to Congress, and teach-ins by Nobel Laureates to teach students what's happening. Where are the leaders? Repost to help find them 🧪
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Stand Up for Science! @standupforscience.net · 12/02/2025
Welcome to the Bluesky account for Stand Up for Science 2025! Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide! #scienceforall #sciencenotsilence
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Doug Jerolmack @dougjerolmack.bsky.social · 16/02/2025
REPOST REPOST!!
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Luca Malatesta @geoluca.bsky.social · 16/02/2025
Autostadt
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