Point-bar city?

Le Cartographe 🗺️🍷@lecartographe.bsky.social · 2mo ago

#QuizzTown ! Réponse ?

This paper on the morphology of the Indus Fan shows nicely that meandering channels exist in the deep sea as well and they are as beautiful as the subaerial ones agupubs.onlinelibrary.wiley.com/doi/10.1029/...

A web app for visualizing stratigraphic datasets (based on the ‘stratigraph’ package and our “Stratigraphy in space an time” paper): zsylvester.github.io/stratigraph-... 🧪 ⚒️

Quizztown ! Réponse ?

"Reconciling flood-risk reduction and wetland resilience behind coastal floodgates" doi.org/10.1038/s442...

Reconciling flood-risk reduction and wetland resilience behind coastal floodgates - Nature Water

Coastal urban areas are increasingly threatened by sea-level rise and extreme weather, necessitating hard-engineering solutions such as storm-surge barriers. Here the authors examine the Mo.S.E. barri...

doi.org

Himalayas as seen from Space 🌍 📷

An 800+ mile long haboob sweeping across northwest Africa. My oh my...

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.

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

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...

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.

eos.org

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

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...

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...

youtube.com

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...

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

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...

stanford.io

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.

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...

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

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...

doi.org

Showed this slide in class and it didn't elicit a single giggle or guffaw. Something's up.

Erin is truly an extraordinary hurricane, one of the biggest and most powerful we've seen in this part of the Atlantic. Mercifully, it'll spare the U.S. an otherwise extensive and devastating blow, but we won't escape major coastal problems. My very latest ⬇️

Enormous Erin Growing Larger: Violent Seas, Dangerous Waves, and Treacherous Surf Expected Along the U.S. East Coast

Tropical storm conditions and coastal flooding will begin affecting North Carolina’s Outer Banks by this evening

michaelrlowry.substack.com

Politics beats out science in Louisiana. www.nola.com/opinions/mid...

Bob Marshall: End of diversion plan costs Louisiana its good name

Gov. Jeff Landry's cancellation of the Mid-Barataria Sediment Diversion is a blow for coastal restoration -- and for Louisiana's hard-earned reputation as a state that bases its policies on science, c...

nola.com

Elements of a landscape, the Netherlands. Where rivers once slowly meandered through lowland peat bogs, straight lines now cross them out. This is the Angstel river, between Loenen aan de Vecht and Baambrugge, the Netherlands. On the right the Vecht river.