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.
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#TopoToolbox #Hydrology #Hydraulics #Flood

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.
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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

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...

#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.

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

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 🔽

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.

The solver is minvoellmy by Stefan Hergarten. It'll be implemented in #TopoToolbox shortly together with this example.

Time for some nice #landslide simulation using Hergarten's minvoellmy implementation in #TopoToolbox. The DEM shows the Eiger Northface and the detached volume is 5 Mio m^2.

Last #TopoToolbox post this year. Learn how to visualize paleotopographic data.
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Check out GraphFlood esurf.copernicus.org/articles/12/... by @bgailleton.bsky.social for flood extent modelling.
This is a set of simulations for four different precipitation rates. Dark blue indicates larger flood extents for higher precipitation rates. Soon available for #TopoToolbox, too.

GraphFlood 1.0: an efficient algorithm to approximate 2D hydrodynamics for landscape evolution models Abstract. Computing hydrological fluxes at the Earth's surface is crucial for landscape evolution models, topographic analysis, and geographic information systems. However, existing formalisms, like s...

New paper out: doi.org/10.5194/esur...
Stay tuned. GraphFlood will soon be also available to run from within #TopoToolbox

10 years #TopoToolbox 2, 1000 citations.

Modelling landscape evolution in layered rocks. #TopoToolbox

If n, the slope exponent in the stream power model, is greater than one, smaller, upstream migrating knickpoints will be consumed by larger ones. Check out the function fastscape in #TopoToolbox to conduct your own numerical experiments.

Code repository includes MATLAB codes and executables for use with the free MATLAB Runtime Environment (if you don't have MATLAB or all the toolboxes needed to run TAK). And as always, a shout out to @WSchwanghart and #TopoToolbox, the super powerful base on which TAK is built!