Himalayas as seen from Space 🌍 📷

An 800+ mile long haboob sweeping across northwest Africa.

My oh my...

Yeah saw that too!!

So the question becomes: what is meant by precitability? A mechanistic prediction of where the river channel will be in X years (kinda weather forecast) or perhaps a stastical representation of the process (kinda climate forecast), i.e. the river is more likely to be in position Y than in Z?

Genuine question (I dont' have a definitive answer): in a river where planform change occurs only via neck cutoffs, is the predictability horizon basically set by the (mean) cutoff timescale?i.e., if the mean time for a bend to cutoff is T, does prediction close to or beyond T become meaningless?

And I’m not even sure about your own garage, to be honest. The front wheel might get damaged if you inadvertently push your bike to the side while it’s on the rack.

Stunning meandering tidal channels in the Waccasassa Bay Preserve State Park (Florida, USA) [29.178054° N 82.799404° W]

Elevation data: "FL Peninsular 2018 D18" Project, accessed through the USGS 3DEP LidarExplorer

Next was PhD student Michael Hasson, giving an invited talk about how #vegetation has changed the way #rivers move through space, with implications for interpretations of river deposits through the first 90% of #Earth history (12/16 pm, EP24C-04). Published in @science.org this year.

who holds credits for this image? (asking for a friend who would like to showcase it in some of their presentations....)

Stunning meandering tidal channels in the Waccasassa Bay Preserve State Park (Florida, USA) [29.178054° N 82.799404° W]

Elevation data: "FL Peninsular 2018 D18" Project, accessed through the USGS 3DEP LidarExplorer

"Salinity Variations in the Venice Lagoon (Italy) Induced by Safeguard Structures: A Challenging Trade‐Off Between Urban and Ecosystem Protection in the Face of Climate Change"
agupubs.onlinelibrary.wiley.com/doi/10.1029/...

is it just me or the @jgrearthsurface.bsky.social websystem has a problem? Like, I log in, and if I try to either submit a manuscript or accesso my live manuscripts, I am sent back to the login page again....

Here is a hastily constructed animated gif from different NASA satellites showing the progression of the Hayli Gubbi eruption. Note the tall ash plume spreading NE (right) and a lower, light tan ash flow(?) moving NNW. #eruption #volcano

Planet imagery of the 4 November 2025 landslide at Mae Moh Mine Over the weekend, Planet captured almost perfect imagery of the 4 November 2025 landslide at Mae Moh Mine in Thailand.

Over the weekend, @planet.com captured almost perfect satellite imagery of the 4 November 2025 landslide at Mae Moh Mine in Thailand.
eos.org/thelandslide...

Rethinking point-bar architecture: Insights from the meandering Powder River (Montana, USA)—Read the new study in #GSABulletin: geosociety.co/4nUzJBa

#FluvialGeomorphology #Sedimentology #Rivers #PowderRiver
Photo by USFWS

Venice, easy :-)

Nonequilibrium Physics -- Stochastic Dynamics & Field Theories - YouTube This lecture explores the fundamental principles and advanced concepts of nonequilibrium field theories and stochastic dynamics. The course focuses on stocha...

For anyone interested in stochastic dynamics, nonequilibrium/critical phenomena, Langevin equations, etc, I *strongly* recommend these new lectures (40x 40 min) by Erwin Frey (LMU Munich). Outstanding.
🧪🧮
www.youtube.com/playlist?lis...

That’s the thing. I can tolerate that somehow, but for ECs this is a killer.
Thank god we preprinted both papers, poor consolation but better than nothing!

Same postdoc, another paper: sat on the Editor’s desk for 5+ months, then came back with a desk rejection for being ‘out of scope.’ Five months… for a desk rejection??

Agreed! Postdoc's paper in our group: submitted early July. Editor emails: "paper is going out but needs an extra doc (declaration)". Doc sent. Then silence. After 120 days, status is still ‘Under evaluation’. I ask for clarifications. Reply: Still assigning referees, reviewer suggestions welcome.😱

The last piece of work from Riccardo Maitan's PhD project is finally out in @geosociety.bsky.social GSA Bullettin

"Discharge variability drives point-bar macroform degradation in the meandering Powder River (Montana, USA)"

Read more here:
doi.org/10.1130/B383...

The rise of plant life changed how rivers move, study shows Research reveals that unvegetated meandering rivers can geologically masquerade as braided rivers, suggesting they were much more common in the first 90 percent of Earth’s history than previously thou...

Findings from a recent study could upend the conventional view of how rivers have shaped continents over time.

It’s “a significant revision to our understanding of the history of the Earth,” said lead author Michael Hasson.
@marslogander.bsky.social

Did you know that sand records its transport history as it moves across Earth's surface? We developed a new tool to investigate billion-year-old rocks by looking at microscopic features on zircon sand grains. Check out our new paper in @geosociety.bsky.social to see how!

doi.org/10.1130/G537...

Just out: PhD candidate @mcolinmarvin.bsky.social shows that like in quartz, #zircon grains preserve microscopic archives of their transport history. But unlike in quartz, those archives remain decipherable for billions of years, unlocking first 90% of #Earth ’s history
@stanforddoerr.bsky.social

The DEM is much less exciting.

A stark-looking satellite image, mostly gray to dark red and black. On the west side are many fresh-looking cinder cones and lava flows. On the east side, desert mountain ranges with alluvial fans around them. There is a dry river bed crossing the southeast part of the image.

Can you tell where this fascinating landscape is? Sentinel1 GRD synthetic aperture radar, seasonal change using VV polarization, descending. In theory, related to a lot of news these days, especially the faintly visible ESE to WNW line in the northern part.

🌊 A wednesday full of science @ #RCEM2025
From fascinating talks on coasts, rivers & estuaries to the second poster session, has been packed with insights and exchange. 💡🖼️

👏 Thanks to all presenters for pushing the boundaries of our field—discussion & collaboration are thriving!

🌅 Final day begins @ #RCEM2025
We’re kicking it off with the keynote of Dr. Zheng 🎤 —bringing fresh perspectives on biomorphodynamics.

It’s being an incredible week of talks, posters & community—let’s make this last day just as inspiring! 💡🌊

#RCEM2025 #Keynote #CoastalScience

So proud of Michael!! 😎

This work was a collaboration with @alvitello.bsky.social at @unipd.bsky.social and A. Ielpi and @ubcokanagan.bsky.social

Check also:

- Perspective by J. Pizzuto: doi.org/10.1126/scie...

- Stanford’s press release: sustainability.stanford.edu/news/rise-pl...

Vegetation changes the trajectory of river bends A primary axiom in geoscience is that the evolution of plants drove global changes in river dynamics. Notably, the apparent sinuosity of rivers, derived from the variance of sediment accretion directi...

Plants change how river bends move - paper by PhD student Michael Hasson out as First Release in #Science!!

Paper: doi.org/10.1126/scie...

Before #plants, #meanders did not grow laterally as much but translated downstream, making them look like braided rivers in rocks.

@stanforddoerr.bsky.social