#geomorphology — Public Fediverse posts

A Coastal Exposure Index For Ireland - Relative Hazard Exposure And The Protective Role Of Coastal Habitats
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https://doi.org/10.1007/s11069-026-08361-w <-- shared paper
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http://alturl.com/4e83i <-- shared webmap / data portal
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https://www.independent.ie/irish-news/revealed-researchers-pinpoint-county-facing-greatest-risk-of-coastal-erosion-as-sea-levels-rise/a/161113880.html <-- shared media article
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[“The index complements site-specific flood and erosion modelling.”]
H/T @kevin Walsh | PhD Researcher at University College Cork
“In this paper [1st link above], [the authors] seek to answer the question “what is the relative distribution of exposure to coastal hazards around the Irish coast, and where can coastal habitats potentially reduce exposure?”
The method [they] chose to achieve this was the Coastal Vulnerability Model (CVM), within the InVEST software suite. This involves combining the key physical and climatic variables which can show us where along the coast might be most adversely affected by extreme winds, powerful waves and surges, and sea level rise.
It also reveals the potential protection provided by coastal habitats, such as dunes and saltmarsh, as well as populations and sites of cultural heritage located within zones deemed “Very High Exposure”.
[They] tested variations to the model, including seeing how the results change when certain variables are left out, what happens if we add in other variables, and how ranking choices impact exposure distribution. The results show that these choices, especially the ranking methods, can have large impacts on hazard distribution and the overall interpretation of the results. However, [they] found that the CVM quintile based approach was most suitable for Ireland, as it reveals high exposure sites on the east coast, which tends to be overlooked when different methods are applied.
[The H/T] also prepared an interactive map, where you can view the results in detail [2nd link above]
There’s a lot of work ongoing in this space around Ireland, [they] hope this will be a valuable contribution towards sustainable management of our coastline…”
#spatialanalysis #exposure #coastal #hazards #mitigation #risk #Ireland #Irish #coast #CoastalVulnerabilityModel #CVM #InVEST #model #modeling #spatiotemporal #geostatistics #statistics #spatial #mapping #geomorphology #geology #climate #wind #wave #tidal #erosion #stormsurge #storms #ocean #sealevelrise #climatechange #extremeweather #dunes #saltmarshes #machair #seagrass #habitat #protection #vulnerability #parametersensitivity #exposure #sustainable #populationpressure #CoastalExposureIndex #culturalheritage #coastalzonemanagement #planning #policy #evidencebased #adaption #strategies

Detection And Mapping Of Daya Features In The Limestone Plateau Of Northwest Egypt
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https://doi.org/10.1177/03091333261480882 <-- shared paper
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https://doi.org/10.1007/s41207-024-00477-4 <-- shared paper
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H/T @wael Galal | Geologist at Geology Department, Assiut University
“[The author’s] study systematically investigates ‘DAYAS’ shallow, ephemeral wetlands scattered across the limestone plateau of Northwest Egypt. Previously undocumented in Egyptian territory, these saucer-shaped depressions play a vital role in regional hydrology and karst evolution.
Through an integrated approach combining Sentinel-2 satellite imagery, multi-decadal Landsat time-series analysis (1984-2025), ALOS PALSAR DEMs, and extensive field validation, [they] identified and mapped 5,430 daya features covering 258.1 km² achieving 91% classification accuracy.
[Their] research established a typological framework distinguishing bowl-shaped, small flat-bottom, and large flat-bottom dayas representing a continuum from active karst dissolution to relict, sediment-sealed systems. Critically, [they] documented a 32.63% net increase in daya surface area over 41 years, demonstrating that karst modification remains an active geomorphic process even under present-day hyper-arid conditions.
This work provides government agencies and water resource planners with the first high-resolution spatial inventory of these features essential baseline data for sustainable groundwater management, water-harvesting infrastructure, and conservation prioritisation in this water-scarce region…”
#Research #KarstGeomorphology #RemoteSensing #GIS #spatial #mapping #spatialanalysis #spatiotemporal #WaterResources #Egypt #Dayas #Sustainability #PhysicalGeography #water #hydrology #hydrography #wetland #daya #geology #limestone #karst #sentinel #Landsat #hydrogeomorphology #geomorphology #geomorphometry #arid #hyperarid #planning #policy #sustainable #groundwater #conservation

This week's #NewBooks at the library: Several new books bought at bargain prices:
- The Nile Basin: Quaternary #Geology, #Geomorphology and Prehistoric Environments by Martin Williams, published by Cambridge University Press.
- A Pipeline Runs Through It: The Story of #Oil from Ancient Times to the First World War by Keith Fisher, published by Allen Lane.
- The Great Paradox of #Science: Why Its Conclusions Can Be Relied Upon Even Though They Cannot Be Proven by Mano Singham, published by Oxford University Press.

#Books #Bookstodon #Scicomm #EarthSciences #FossilFuels #Energy #History #Philosophy @bookstodon

Spatiotemporal Distribution, Climatic Factors, And Seasonal Precipitation Patterns Characterizing 66 Years Of Widespread Shallow Landslide Events In Piedmont (Northwestern Italy)
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https://doi.org/10.3389/feart.2026.1884300 <-- shared paper
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“Widespread shallow landslide events constitute one of the primary drivers of recurrent societal and economic losses in mountain regions. Although the influence of climate variability on landslide frequency and magnitude has been widely recognized, long-term, event-level analyses linking spatiotemporal landslide patterns to precipitation climatology at the regional scale remain scarce. This study presents a statistical analysis of 128 widespread shallow landslide events recorded in Piedmont, northwestern Italy, over the 66-year period 1960–2025, cross-referenced against the regional precipitation climatology. Events were characterized by season, primary physiographic unit, provincial coverage, and an ordinal magnitude index (scale 1–7) encoding combined spatial extent and estimated landslide count. Results indicate that no statistically significant monotonic trend in event frequency was detected over the study period (mean rate: 1.97 events yr⁻1); however, a moderate positive correlation was established between event magnitude and the number of provinces affected (R2 = 0.51, p < 0.00), validating the magnitude index as a proxy for spatial footprint. Mean event magnitude reached its highest value in the 2010s (3.71), while all five events of magnitude ≥ 6 occurred in autumn. The summer fraction of the catalogue increased markedly, from 6% in the 1960s to 31% in the 2000s and 25% in the 2020s, concurrent with stable or declining summer mean precipitation totals, consistent with Clausius–Clapeyron amplification of convective intensity under documented regional warming. Cross-analysis with regional records identifies three tiers of rainfall–landslide coupling: a stationary direct seasonal coupling; a non-stationary, strengthening intensity-mediated summer coupling; and a structural susceptibility-mediated spatial decoupling whereby the driest provinces generate the highest landslide occurrence frequencies due to the lower triggering thresholds characteristic of Tertiary Piedmont Basin sedimentary environments. A post-hoc assessment of the triggering thresholds used for regional shallow landslide early warning system demonstrates superior detection performance for high-magnitude autumn events (hit rate up to 89% for the 2000–2025 sub-period) and identifies sub-daily convective accumulation windows in summer as the primary domain requiring threshold recalibration…”
#massmovement #landslide #engineeringgeology #Italy #Piedmont #NorthernItaly #weather #rainfall #precipitation #climate #risk #hazard #corrleation #relationship #earlywarningsystems #damage #loss #community #infrastructure #mountain #spatiotemporal #mapping #spatialanalysis #statistics #geostatistics #climatology #regional #scale #weatherpatterns #physiography #geomorphology #water #hydrology #hydrogeomorphology #geology #soils

Widespread Landslide Activity in an Extreme Wet Season and Implications for Regional Sediment Management, Eastern San Francisco Bay Area, California
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https://doi.org/10.1029/2026EA005227 <-- shared paper
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H/T @amy East, Ph.D., P.G. | Researcher integrating geoscience and climate-change preparedness
“[This paper (link above) is] a collaboration with [the H/T’s] colleagues from [the] USGS Landslide Hazards Program, who mapped over 8,900 landslides in the eastern San Francisco Bay Area during an extreme wet winter.
How much sediment does such an extreme winter produce, from landslides or in stream discharge? How does that compare with long-term sediment production and landscape denudation rates?
[They] f[o]nd that landslide sediment mobilization is comparable to long-term denudation rates, emphasizing the role of extreme events in long-term sediment production. However, one extreme wet year has a negligible effect toward counteracting ongoing problems of sediment deficit in San Francisco Bay: to keep pace with sea-level rise, extreme wet conditions would need to occur in 50 out of the next 75 years…”
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"PLAIN LANGUAGE SUMMARY: Watersheds will likely produce more sediment in a warmer future with more extreme rain, primarily through landslides in steep terrain. This study examines how an extremely wet season affected sediment production and transport in the eastern San Francisco Bay area, California. By mapping and measuring 8,928 landslides, [they] found that rare, extreme rain conditions are likely responsible for the vast majority of long-term hillslope erosion rates in this region. However, due to long residence times for sediment on hillslopes and in stream channels, a maximum of 1%–2% of that newly mobilized landslide material could have potentially contributed to sediment carried by streams into the Bay that year. Even extremely wet years cannot provide enough sediment for Bay wetlands and shorelines to keep pace with rising sea levels. To meet the demand for sediment in the Bay, such extreme rain and sediment production would need to occur in most years, which is not realistic. To restore wetlands and protect shorelines, managers likely will need to supplement the coastal system with repurposed dredged material…”
#massmovement #soil #water #hydrology #hydrography #geology #soils #geomorphometry #hydrogeomorphology #geomorphology #landslide #masswasting #climatechange #extremeweather #precipitation #rainfall #weather #climate #mapping #engineeringgeology #mapping #SanFrancisco #BayArea #USA #California #fedscience #fedservice #oublicgood #sediment #stream #discharge #extremewinter #sealevelrise #SLR #hillslope #erosion #sedimentation #tidal #wetlands #coast #coastline #shoreline #GIS #spatial #spatialanalysis #spatiotemporal #watershed
#USGS | #USGSLandslideHazardsProgram

Great to see someone identified as a geomorphologist in the news - and a female too!
#geomorphology #geoscience #geography #geology
www.bbc.co.uk/news/article...

Tyrella beach: How beachgoers ...

Run parallelised HBV hydrological model directly into GRASS GIS, prefetching Copernicus DEM, ERA5 climate dataset, and precomputing HRU, outlets, etc.
#GRASSGIS #HBV #Copernicus #DEM #hydrology #landscape #cropmodeling #geomorphology
https://github.com/yannchemin/r.hydro.hbv

Import Copernicus DEM directly into GRASS GIS
#GRASSGIS #Copernicus #DEM #hydrology #landscape #cropmodeling #geomorphology
https://github.com/yannchemin/r.in.dem

As if on another planet (Lava Butte, OR, 2026)

#photography #fotografie
#fotografia #photographie #pnw #landscapephotography #naturephotography #geology #geomorphology #monochrome #blackandwhite #volcano

#FotoVorschlag
Landschaft in Schwarzweiß Landscape in black and white

A large "tuff" formation (Oregon, 2026)

https://en.wikipedia.org/wiki/Tuff

#photography #fotografie
#fotografia #photographie #pnw #landscapephotography #geology #geomorphology #monochrome #blackandwhite

Pressure ridge (ice) (Glaciology 🗻)

A pressure ridge is a linear pile-up of sea ice fragments formed in pack ice by accumulation in the convergence between floes in an oceanic or coastal environment. Such a pressure ridge develops in an ice cover as a result of a stress regime established within the plane of the ice. Within sea ice expanses, pressure ridges originate from the int...

https://en.wikipedia.org/wiki/Pressure_ridge_(ice)

#PressureRidge #SeaIce #Landforms #Glaciology #Geomorphology

How Space Weather Could Bust The AI Boom
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https://spacenews.com/how-space-weather-could-bust-the-ai-boom/ <-- shared technical article
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https://futurism.com/artificial-intelligence/ai-data-centers-electric-grid-meltdown <-- shared technical article, “AI Data Centers Pushing Electric Grid Into Meltdown”
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https://doi.org/10.1146/annurev-earth-032524-012356 <-- shared 2026 paper, “Magnetic Storms and Geoelectric Hazards”
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#AI #datcenters #infrastructure #impacts #solarstorms #spaceweather #risk #hazards #overloading #electricity #energy #powersupply #energygrid #vulnerable #transmission #energy #demand #consumers #geoelectrical #geomagnetism #blackout #damage #cost #economics #equipment #transformers #carringtonevent #NERC #grid #reliability #electricaldemand #utilities #magneticstorm #electromagneticinduction #extremeevent #historicalevent #hazardanalysis #spaceweather #history #Carrington #geoelectric #humanimpacts #risk #hazard #monitoring #network #geology #geomagnetism #impedance #rock #soil #utilities #electricaltransmission #powerlines #magnetotelluric #sensor #blackout #brownout #energy #geoelectrichazard #geoelectric #GIS #spatial #mapping #spatialanalysis #spatiotemporal #model #modeling #geomagnetism #geomagneticstorm #telecommunication #electronics #hardened #geography #mitigation #preparedness #geomorphology #geomorphometry #surfacegeology #cost #economics #disaster #impacts #technology #InternetOfThings #internet #USA #review #CONUS #numericalmodeling #realtimemonitoring #AIBoom #Bust
@North American Electric Reliability Corporation (NERC)

Mt Bachelor and The Sisters (Oregon, 2026)

The vast, ancient lava field is mostly barren with a few exceptions; then forest takes over. The closest peak (on the left, Mt. Bachelor) is approx. 30 km away from the camera.

#photography #fotografie
#fotografia #photographie #landscapephotography #pnw #geomorphology #volcano #naturephotography #mountains #monochrome #blackandwhite

Tumalo Falls 2 (Oregon, 2026)

Approx. a 30m drop.

#photography #fotografie
#fotografia #photographie #landscapephotography #pnw #geomorphology #naturephotography #river #waterfall #monochrome #blackandwhite

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As permafrost degrades due to climate warming, intensified chemical rock weathering in river catchments creates a geological carbon sink that can significantly offset the biological release of carbon dioxide.
#Biogeochemistry #Climatology #Geomorphology #Hydrology #EarthScience #sflorg
https://www.sflorg.com/2026/06/es06172602.html

Late Miocene Euphrates River Drained Into A Partially Desiccated Eastern Mediterranean
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https://doi.org/10.1038/s41561-026-01962-x <-- shared paper
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[the paleogeographic reconstruction is outstanding, including the strength and information conveyed so well in that figure, kudos!]
H/T @lina Jakaitė-Darkšė
“Although the Euphrates River - stretching ~3,000 km across Western Asia - has shaped the region’s geology for millions of years, the timing of its origin and the evolution of its course remain enigmatic. So far, two contrasting hypotheses have been proposed to explain the fluvial system’s Late Neogene path: termination in Anatolia at a palaeo-lake or the Mediterranean, or a southeastward continuation to Arabia. Here [they] use seismic-reflection and topographic data to show that two previously identified sedimentary accumulations - deposited during the terminal phase of the Late Miocene Messinian salinity crisis - resulted from dual riverine systems that drained into a partially desiccated eastern Mediterranean before avulsing toward the Persian Gulf and converging to form the modern Euphrates River. From probabilistic sediment-budget modelling, [they] show that although the latest Messinian drainage basins were an order of magnitude smaller than their present-day extents, the total palaeo-discharge exceeded that of the modern Tigris, Euphrates and Nile rivers combined, indicating intense palaeo-precipitation and high palaeo-relief. These results suggest that plate-margin deformation both controlled the fluvial avulsions that diverted the Euphrates River from the Anatolian–Eurasian Plate to the Arabian Plate, and established the conditions necessary for the development of the alluvial Fertile Crescent…”
#water #hydrology #hydrography #paleogeography #Euphrates #river #Miocene #reconstruction #spatialreconstruction #geology #change #erosion #MiddleEast #spatialanalysis #spatiotemporal #Neogene #Anatolia #paleolake #Mediterranean #Arabia #Messinian #remotesensing #model #modeling #topography #hydrogeomorphology #geomorphology #PersianGulf #sediment #paleodischarge #volume #Tigris #elevation #platetectonics #structuralgeology #platemargin #fluvial #avulsion #FertileCrescent

On The Use Of Rainfall Time Series For Regional Landslide Prediction By Means Of Functional Regression
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https://doi.org/10.1016/j.enggeo.2026.108860 <-- shared paper
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#rainfallinduced #landslide #Functionalregression #Japan #Earlywarningsystem #Spacetimeprediction #spatialanalysis #spatiotemporal #massmovement #engineeringgeology #geomorphology #hydrogeomorphology #geomorphometry #remotesensing #geostatistics #model #modeling #mechanics #rainfall #threshold #precipitation #water #hydrology #risk #hazard #hazardassessment #terrain #landscape #landform #landuse #geology #soil #lithology #functionalGeneralizedAdditiveModel #FGAM #prediction #casestudy #AI #LLM

Magnetic Storms And Geoelectric Hazards
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https://doi.org/10.1146/annurev-earth-032524-012356 <-- shared paper / annual review
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#magneticstorm #electromagneticinduction #extremeevent #historicalevent #hazardanalysis #spaceweather #history #Carrington #geoelectric #humanimpacts #risk #hazard #monitoring #network #geology #geomagnetism #impedance #rock #soil #utilities #electricaltransmission #powerlines #magnetotelluric #sensor #magnetometer #blackout #brownout #energy #geoelectrichazard #geoelectric #geostatics #GIS #spatial #mapping #spatialanalysis #spatiotemporal #model #modeling #geomagnetism #geomagneticstorm #telecommunication #electronics #hardened #geography #mitigation #preparedness #geomorphology #geomorphometry #surfacegeology #cost #economics #disaster #impacts #technology #InternetOfThings #internet #USA #review #CONUS #numericalmodeling #realtimemonitoring

Effects Of Discharge And Morphology On Fluvial Sound
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https://doi.org/10.1029/2025EA004327 <-- shared paper
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#water #hydrology #stream #river #flowline #flow #gage #gauge #FluvialAcoustics #AcousticGauging #Hydroacoustics #StreamGauging #Hydrometrics #DischargeEstimation #RiverMorphology #ChannelMorphodynamics #Monitoring #NonInvasiveSensing #AcousticSensing #LowCostMonitoring #Geomorphology #FreshwaterScience #WatershedScience #Idaho #BoiseRiver #discharge #hydrodynamics #spatial #temporal

Non-Linear Morphodynamic Response Of Deltas To Extreme Events
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https://doi.org/10.1029/2025GL120954 <-- shared paper
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#extremeweather #GIS #spatial #mapping #water #hydrography #climatechange #coast #coastal #delta #river #rivers #riverdelta #estuary #estuarine #adapation #flood #flooding #planning #population #demographics #global #morphodynamics #pyDeltaRCM #numericalmodeling #model #modeling #deltamorphology #channel #flow #flowchannel #sedimentation #geomorphology #geomorphometry #spatialanalysis #spatiotemporal #ecology #ecosystems #habitat #floodfrequency #morphometrics

Active Faults Greece - A Comprehensive Geomorphology-Based 1:25,000 Fault Database
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https://doi.org/10.1038/s41597-025-06283-z <-- shared paper
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https://activefaults.eagme.gr/en/ <-- shared Hellenic DataBase of Active Faults (HeDBAF) access
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#GIS #spatial #mapping #Greece #Europe #geology #fault #faulting #remotesensing #earthobservation #seismology #seismic #earthquake #paleoseismology #activefault #risk #hazard #naturaldisasters #DEM #elevation #ActiveFaultsGreece #AFG #database #faulttraces #engineeringeology #spatialanalysis #geomorphology #landsurface #planning #hazardassessment

Hanging Glaciers In Himalaya Reveal Rising Avalanche Risk
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https://www.nature.com/articles/d44151-026-00072-2 <-- shared technical article
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https://doi.org/10.1038/s44304-026-00205-8 <-- shared paper
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#GIS #spatial #mapping #risk #hazard #monitoring #engineeringgeology #naturalhazard #Himalaya #Himalayas #Alaknanda #basin #Garhwal #India #ice #cryosphere #massmovement #avalanche #glacier #hangingglacier #cryosphere #remotesensing #spatialanalysis #spatiotemporal #sentinel2 #DEM #elevation #model #modeling #GlabTop2 #unstable #hanging #BadrinathMana #impact #infrastructure #damage #HEP #urbanisation #development #population #publicsafety #demographics #glacialretreat #melting #Chamoli #disaster #earlywarningsystems #Himalayan #glaciers #instability #warming #climatechange #riskassessment #riskclassification #framework #avaflow #runout #downstream #downslope #water #hydrology #planning #policy #mitigation #geomorphology #geomorphometry

Remote Sensing And Process Attribution Uncertainties In The Dharali Event [Himalayas, India]
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https://doi.org/10.1038/s44304-026-00211-w <-- shared paper review
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https://doi.org/10.1038/s44304-026-00191-x <-- shared paper that was reviewed
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https://doi.org/10.1016/j.nhres.2025.11.001 <-- related shared paper
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#Dharali #disaster #BhagirathiBasin #India #NorthernIndia #Himalayas #GIS #spatial #mapping #remotesensing #satellite #imagery #earthobservation #trigger #risk #hazard #damage #infrastructure #mountain #geomorphology #glacier #glacial #debrisflow #publicsafety #landuse #paraglacial #rainfall #precipitation #extremeweather #massmovement #landslide #spatialanalysis #spatiotemporal #Bhagirathi #River #water #hydrology #icepatchcollapse

The topography of California has always fascinated me, specifically the deserts (mostly the Mojave) of the east. Originally, I believed the Eureka Valley wasn't part of Death Valley, but was pleasantly suprised to learn it's simply an isolated park of the park. (1/2)

#deathvalley #deathvalleynp #nationalpark #california #easterncalifornia #sanddunes #desert #sand #aeolian #eurekavalley #unitedstatesofamerica #geomorphology #valley #hiking

The New Glacial Geomorphological Map From New Zealand [2021]
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https://blogs.egu.eu/divisions/cr/2021/04/02/new-zealand-geomorphology-glaciers/ <-- shared (2021) technical article/blog, Cryospheric Sciences (CR) Division, @European Geosciences Union
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https://doi.org/10.1080/17445647.2021.1876777 <-- shared (2020) paper
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#GIS #spatial #mapping #NewZealand #geomorphology #NewZealand #SouthernAlps #Quaternary #glaciation #landscape #hydrogeomorphology #water #ice #sediment #glacier #glacial #cryosphere #spatialanalysis #geology #Ahuriri #AhuririRiver #paleolake #WaitakiRiver #basin #remotesensing #postglacial #moraine #glaciology #cryosphere #processes #morphology #LastGlacialMaximum #geochronology

Scale Dependence In Remotely Sensed Biodiversity: Leveraging Continental-Scale Imaging Spectroscopy From The National Ecological Observatory Network [spatial analysis]
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https://doi.org/10.1002/rse2.70068 <-- shared paper
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https://doi.org/10.1038/s41559-022-01702-5 <-- shared paper
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#spectraldiversity #spectroscopy #spatialscale #US #NEON #NationalEcologicalObservatoryNetwork #species #ecology #humanimpacts #remotesensing #biodiversity #earthobservation #GIS #spatial #mapping #scale #scale #diversity #metrics #ecosystems #spectral #richness #scaledependency #principalcompoenent #divergence #spatialanalysis #raster #topography #climate #geomorphology #regression #geostatistics #vegetation #plant #area #region #largescale #continent #forest #tree

A Review Of Evolving Remote Sensing And Automated Techniques In Rock Glacier Mapping
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https://doi.org/10.1016/j.earscirev.2026.105473 <-- shared paper
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#GIS #spatial #mapping #rockglacier #glaciers #permafrost #remotesensing #interferometry #earthobservation #spatialanalysis #machinelearning #AI #machinelearning #ML #deeplearning #CNN #metrics #inventory #earthobservation #GeoAI #geostatistics #InSAR #LiDAR #radar #satellite #review #literaturereview #geomorphology #geomorphometry #hydrology #geohazard #risk #hazard #engineeringgeology #biodiversity #permafrost #cryosphere #ice #snow #geology #assessment #survey #research
@Geospatial Research Institute Toi Hangarau | @University of Canterbury

Neogene Uplift Of The Chiribiquete Tabletop Mountains In The Colombian Amazon And Its Paleobiogeographic Implications
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https://doi.org/10.1016/j.palaeo.2026.113645 <-- shared paper
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H/T Richard F. Ott
“The Chiribiquete are table top mountains located deep in the Colombian Amazon and host many rare endemic species. Helanlin Xiang's work shows that the Chiribiquete Mountains likely upifted before the Early Miocene and could have acted as a long-lived stepping stone, connecting species in the Andes with the Guyana Shield…”
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#Miocene #Paleogeography #Palynology #Amazonia #Caquetá #paleobiogeography #Columbia #Amazon #jungle #geomorphology #neogene #uplift #geology #structuralgeology #tectonics #Chiribiquete #tabletopmountains #Andes #GuyanaShield #dating #isotopes #biome #ecosystem #tepui #elevation #sedimentology #stratigraphy #Araracuara #fluvial #lacustrine #deposition orogeny #regional #uplift #drainage #hydrography #hydrology #river #network #GIS #spatial #mapping #spatialanalysis #spatiotemporal #geophysics #seismology

Ice-Patch Collapse And Early-Warning Implications From A Himalayan Flash Flood - Emerging Cryo-Hydrological Hazards Under Deglaciation
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https://doi.org/10.1038/s44304-026-00191-x
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https://youtu.be/zZXER7DocfY?si=lYOE_a6YwigP3-mB
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#GIS #spatial #mapping #glacier #glacial #cryosphere #risk #hazard #flood #flooding #flashflood #earthobservation #cryohydrology #ice #snow #water #hydrogy #Himalaya #Himalayan #extremeweather #monitoring #risk #hazard #forecasting #DharaliFlashFlood #CryosphereScience #Deglaciation #EarlyWarning #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #GlacierResearch #OpenScience #highmountain #mountain #slope #steepness #erosion #fluvial #nivation #Uttarakhand #India #SrikantaGlacier #DEM #elevation #satellite #chronology #reconstruction #ablation #debris #sedimentation #debrisflow #meltwater #debris #surge #massmovement #engineeringgeology #cryospherichazard #terrain #spatialanalysis #spatiotemporal #earlywarning #naturalhazard #channel #topography #geography #hydrogeomorphology #geomorphology #Dharali

Stratigraphic Evidence For Modern-Like Glacier Extents In South-Central Alaska Within The Last Glacial Period (MIS 3)
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https://doi.org/10.1111/bor.70043 <-- shared paper
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https://www.nps.gov/articles/000/ancient-glacier-change.htm <-- shared @NPS technical article
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#glacier #Wisconsinan #glaciations #alaska #iceage #sediments #moraines #geology #stratigraphy #model #cryosphere #ice #snow #sedimentary #Chitina #CopperRiver #proglacial #water #hydrology #fluvial #glaciofluvial #glaciolacustrine #fans #Holocene #geomorphology #geomorphometry #landform #hydrogeomorphology #sedimentology #stratigraphic #sampling
@NPS

See The Mississippi River’s Hidden History, Uncovered By Lasers
Using hyperprecise LiDAR data,. a cartographer [well, hydrographer!] maps the river’s bend and channels over time with mesmerizing results…
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https://www.nationalgeographic.com/science/article/mississippi-rivers-hidden-history-uncovered-by-lidar <-- shared technical / media article
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https://dancoecarto.com/ <-- shared @Daniel Coe portfolio and more
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https://usace.contentdm.oclc.org/digital/collection/p266001coll1/id/10015/ <-- shared Harold Fisk's 1944 USACE report, “The Alluvial Valley of the Lower Mississippi River”
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#GIS #spatial #mapping #water #hydrography #hydrology #LiDAR #remotesensing #spatialanalysis #spatiotemporal #hydrogeomorphology #Mississippi #River #Fiske #cartography #visualisation #meandering #channels #landforms #floodplains #opendata #3DEP #topography #geomorphology #levees #dikes #oxbows #channel #paleohydrology
#DanielCoe | @nationalgeographic | #USGS | #USACE

How much does landform position matter for vegetation dynamics across Calgary?

I explored how ΔNDVI (2025-2024) varies across geomorphon classes (summit, ridge, slope, hollow, valley, etc.) using a large spatial dataset (~194k observations).

A few key points from the analysis:
• Non-parametric Kruskal–Wallis test shows statistically significant differences between geomorphons
• However, the effect size is moderate (ε² ≈ 0.04)
• Distributions strongly overlap — landform position matters, but it is not a deterministic driver
• Median ΔNDVI tends to be higher in lower landscape positions (hollows, footslopes, valleys), consistent with moisture and accumulation controls

#EnvironmentalData #RemoteSensing #NDVI #LandscapeEcology #Geomorphology #DataAnalysis #RStats
#ReproducibleResearch #Calgary #GreennessOfCalgary #Sentinel2

Conceptualizing River Floodplains
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https://doi.org/10.1029/2024EF005681 <-- shared paper/commentary
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"PLAIN LANGUAGE SUMMARY: River floodplains are integrative ecosystems in which diverse processes operate together to maintain river health. Floodplains are as critical to river health as the channel itself, yet floodplains lack the legal protections afforded to river channels in many countries.
KEY POINTS
• A river floodplain is an integrative physical, chemical, biological system and a key component of a river corridor
• Contemporary societal perceptions and regulatory frameworks do not reflect this scientific consensus...”
#water #hydrology #river #floodplain #surfacewater #geology #sedimentology #geomorphology #ecology #biogeochemical #policy #planning #interdisciplinary #model #modeling #management #monitoring #ecosystem #riverhealth #legal #regulations #humanimpacts #overview

Multi-Disciplinary Reconstruction Of Debris Flow Events And Dynamics In The Northern Apennines, Italy - A Multiscale Approach Linking Ground Evidence With Climatic Triggers
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https://doi.org/10.1016/j.catena.2025.109708 <-- shared paper
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#GIS #spatial #mapping #engineeringgeology #massmovement #geology #landslide #debrisflow #multidisciplinary #geomorphology #pluvial #precipitation #dendrogeomorphological #treerings #dendrochronology #dating #chronology #reconstruction #geomorphmetry #processmodel #flowchart #spatialanalysis #spatiotemporal #mountains #orthophotos #historicphotos #geopedology #soil #hydraulic #alpedisucciso #trees #vegatation #downslope #risk #hazard #assessment #remotesensing #water #hydrology #rainfall #records #NorthernApennines #susceptibility #Italy

A Decade of Post-Fire Succession Amplifies the Effect of Wildfire on the Surface Radiation Balance and Permafrost Thaw in Subarctic Peatlands
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https://doi.org/10.1002/ppp.70016 <-- shared paper
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#permafrost #thaw #Canada #NWT #NorthwestTerritories #wildfire #postfire #peatlands #ScottyCreek #vegetation #tree #toppling #geomorphology #cryosphere #geomorphetry #warming #winter #summer #climatechange #subarctic #arctic #monitoring #measurements #TaigaPlains #ecoregion #blackspruce #processes #landcover

A Study Debunks [sic] Decades Of Scientific Research - Underwater Canyons Are NOT Created By Rivers… And The Explanation Is Brutal
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https://www.ecoticias.com/en/a-study-debunks-decades-of-scientific-research-underwater-canyons-are-not-created-by-rivers-and-the-explanation-is-brutal/24721/ <-- shared technical article
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https://doi.org/10.1126/sciadv.adv3942 <-- shared paper #GetNZOnTheMap
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https://blogs.egu.eu/divisions/nh/2018/02/05/twenty-or-more-leagues-under-the-sea-a-journey-to-understand-submarine-canyons/ <-- shared interview transcript, “A journey to understand submarine canyons [and their related geohazards]”, European Geosciences Union (EGU.)
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https://www.sustainableseaschallenge.co.nz/our-research/submarine-canyons-connecting-coastal-and-deep-sea-ecosystems <-- shared technical article, “Submarine Canyons - Connecting Coastal And Deep-Sea Ecosystems”
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#spatial #mapping #model #modeling #moprhology #spatialanalysis #tectonics #continentalmargins #submarinecanyons #formation #river #hydrology #massmovement #processes #global #oceanfloor #geology #slumps #currents #seafloor #steepness #debrisflow #geohazard #ecosystems #sediment #movement #infrastructure #damage #valley #marine #underwater #geomorphology #geomorphometry #deepocean # #geostatistics #earthquake #gravity #erosion #continentalslope #biogeochemical #coast #coastal

When Heavy Rain Meets #Glacial Landscapes – Record-Breaking #Flooding in #WashingtonState [USA]…
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https://www.linkedin.com/posts/geological-society-of-america_geohazards-flooding-landslides-ugcPost-7405031818007187457-wuwy <-- shared GSA LinkedIn post
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https://doi.org/10.1130/G39691.1 <-- shared paper
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https://komonews.com/news/local/landslide-risk-western-washington-severe-flooding-heavy-rain-continues-for-dirt-soil-sediment-weather-forecast-winter-storm-pacific-northwest <-- shared media article
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https://youtu.be/1yB34LibGo8?si=Z_Ug5gd3xLhvZGym <-- shared media video
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#geohazards #Landslides #Geology #landslide #severeweather #landslides #landsliderisk #weather #westernwashington #washingtonflooding #flooding #winterconditions #storm #pnw #meteorology #science #massmovement #flood #extremeweather #fluvial #pluvial #rainfall #atmosphericriver #engineeringgeology #risk #hazard #mitigation #forecasting #riskmanagement #damage #infrastructure #cost #economics #publicsafety #PNW #PacificNorthwest #water #hydrology #glacial #sediment #sedimentology #stratigraphy #GIS #spatial #mapping #remotesensing #spatialanalysis #elevation #slopestability #froundwater #hydrology #model #flow #modeling #outwash #till #clay #watertable #lithology #landscape #geomorphology #geometry #USA

Bar (river morphology) (Hydrology 💧)

A bar in a river is an elevated region of sediment that has been deposited by the flow. Types of bars include mid-channel bars, point bars, and mouth bars. The locations of bars are determined by the geometry of the river and the flow through it. Bars reflect sediment supply conditions, and can show where sediment supply rate is...

https://en.wikipedia.org/wiki/Bar_(river_morphology)

#Bar #Hydrology #RiverIslands #WaterStreams #Geomorphology #Sedimentology

Mapping Current And Future Flood Exposure Using A 5 Metre Flood Model And Climate Change Projections [Vancouver, Canada]
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https://nhess.copernicus.org/articles/24/699/2024/ <-- shared technical article
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https://www.theguardian.com/environment/2021/nov/17/pacific-north-west-flooding-british-columbia-washington-state-canada <-- shared 2021 technical media article, PNW flooding
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[this post should not be considered an endorsement of a specific vendor, etc]
#water #hydrology #flood #flooding #risk #hazard #Vancouver #BritishColumbia #Canada #climatechange #extremeweather #localfloods #GIS #spatial #mapping #riskassessment #spatialanalysis #floodexposure #riskmapping #model #modeling #floodriskmanagement #riskmanagement #naturaldisaster #rainfall #precipitation #stormsurge #hazardmapping #floodmapping #floodrisk #infrastructure #cost #economics #fluvial #pluvial #geomorphology #elevation #geomorphometry #regulatory #regulations #spatiotemporal

Mapping Current And Future Flood Exposure Using A 5 Metre Flood Model And Climate Change Projections [Vancouver, Canada]
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https://nhess.copernicus.org/articles/24/699/2024/ <-- shared technical article
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https://www.theguardian.com/environment/2021/nov/17/pacific-north-west-flooding-british-columbia-washington-state-canada <-- shared 2021 technical media article, PNW flooding
--
[this post should not be considered an endorsement of a specific vendor, etc]
#water #hydrology #flood #flooding #risk #hazard #Vancouver #BritishColumbia #Canada #climatechange #extremeweather #localfloods #GIS #spatial #mapping #riskassessment #spatialanalysis #floodexposure #riskmapping #model #modeling #floodriskmanagement #riskmanagement #naturaldisaster #rainfall #precipitation #stormsurge #hazardmapping #floodmapping #floodrisk #infrastructure #cost #economics #fluvial #pluvial #geomorphology #elevation #geomorphometry #regulatory #regulations #spatiotemporal

Mapping Current And Future Flood Exposure Using A 5 Metre Flood Model And Climate Change Projections [Vancouver, Canada]
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https://nhess.copernicus.org/articles/24/699/2024/ <-- shared technical article
--
https://www.theguardian.com/environment/2021/nov/17/pacific-north-west-flooding-british-columbia-washington-state-canada <-- shared 2021 technical media article, PNW flooding
--
[this post should not be considered an endorsement of a specific vendor, etc]
#water #hydrology #flood #flooding #risk #hazard #Vancouver #BritishColumbia #Canada #climatechange #extremeweather #localfloods #GIS #spatial #mapping #riskassessment #spatialanalysis #floodexposure #riskmapping #model #modeling #floodriskmanagement #riskmanagement #naturaldisaster #rainfall #precipitation #stormsurge #hazardmapping #floodmapping #floodrisk #infrastructure #cost #economics #fluvial #pluvial #geomorphology #elevation #geomorphometry #regulatory #regulations #spatiotemporal

Mapping Current And Future Flood Exposure Using A 5 Metre Flood Model And Climate Change Projections [Vancouver, Canada]
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https://nhess.copernicus.org/articles/24/699/2024/ <-- shared technical article
--
https://www.theguardian.com/environment/2021/nov/17/pacific-north-west-flooding-british-columbia-washington-state-canada <-- shared 2021 technical media article, PNW flooding
--
[this post should not be considered an endorsement of a specific vendor, etc]
#water #hydrology #flood #flooding #risk #hazard #Vancouver #BritishColumbia #Canada #climatechange #extremeweather #localfloods #GIS #spatial #mapping #riskassessment #spatialanalysis #floodexposure #riskmapping #model #modeling #floodriskmanagement #riskmanagement #naturaldisaster #rainfall #precipitation #stormsurge #hazardmapping #floodmapping #floodrisk #infrastructure #cost #economics #fluvial #pluvial #geomorphology #elevation #geomorphometry #regulatory #regulations #spatiotemporal

Mapping Current And Future Flood Exposure Using A 5 Metre Flood Model And Climate Change Projections [Vancouver, Canada]
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https://nhess.copernicus.org/articles/24/699/2024/ <-- shared technical article
--
https://www.theguardian.com/environment/2021/nov/17/pacific-north-west-flooding-british-columbia-washington-state-canada <-- shared 2021 technical media article, PNW flooding
--
[this post should not be considered an endorsement of a specific vendor, etc]
#water #hydrology #flood #flooding #risk #hazard #Vancouver #BritishColumbia #Canada #climatechange #extremeweather #localfloods #GIS #spatial #mapping #riskassessment #spatialanalysis #floodexposure #riskmapping #model #modeling #floodriskmanagement #riskmanagement #naturaldisaster #rainfall #precipitation #stormsurge #hazardmapping #floodmapping #floodrisk #infrastructure #cost #economics #fluvial #pluvial #geomorphology #elevation #geomorphometry #regulatory #regulations #spatiotemporal

Result of a Principal Component Analysis (PCA) created from combined median composites of Sentinel-1 and Sentinel-2 imagery — somewhere in the Sudanese desert.

This PCA composite brings out contrasts between lithologies, structural domains, drainage patterns, and surface materials, highlighting features that are nearly invisible in standard RGB representations.

And yes — it also happens to look stunning.

#RemoteSensing #EarthObservation #Geology #PCA #Sentinel1 #Sentinel2 #SAR #Radar #OpenData #GIS #QGIS #Geomorphology #Geoscience #SAGAGIS #RStats #Desert #Lithology #GeoDataArt #GeoSpectralArt #Sudan #Copernicus #CopernicusSentinel

Exploring large-scale landscape structures with a simple Principal Component Analysis (PCA) applied to a MODIS composite.

The PCA reveals striking contrasts in surface materials, vegetation patterns, and terrain transitions across western Canada — from the Rocky Mountains into the prairies and the Canadian Shield.
Even with moderate-resolution MODIS data, spectral variability produces a surprisingly rich view of regional geography and geomorphology.

#RemoteSensing #EarthObservation #Geology #PCA #MODIS #OpenData #GIS #QGIS #Geomorphology #Geoscience #RStats #Lithology #GeoDataArt #GeoSpectralArt #BorealForest #Taiga #Canada #Alberta

Result of a Principal Component Analysis (PCA) based on combined median composites of Sentinel-1 and Sentinel-2 satellite imagery — somewhere in the desert of Sudan.

The PCA highlights contrasts between different lithologies, structural domains, and surface materials, revealing subtle geological features that are hard to distinguish in standard RGB composites.

And yes — it also looks simply beautiful.

#RemoteSensing #EarthObservation #Geology #PCA #Sentinel1 #Sentinel2 #Radar #OpenData #GIS #QGIS #Geomorphology #Geoscience #SAR #SAGAGIS #RStats #Desert #Lithology #GeoDataArt #GeoSpectralArt

[USGS] FORT Science In Action – Science In Support Of Invasive Reptile Management In The Greater Everglades
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https://www.usgs.gov/centers/fort-collins-science-center/news/fort-science-action-part-7-science-support-invasive <-- shared technical article
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#remotesensing #florida #everglades #restoration #burmese #python #snake constrictor #impacts #invasive #species #reptiles #loss #mammal #tegus #ecosystems #habitat #plants #vertebrate #carnivore #feral #threatened #research #culling #risk #hazard #threat #AI #imagery #UAS #GIS #spatial #mapping #DNA #sampling #surveillance #cost #ecology #damage #trapping #collaboration #scaleable #control #biocontrol #fedscience #fedservice #management #protection #swamp #wetland #grasslands #geomorphology #geomorphometry #water #hydrology #native #species #USGS #NPS
@USGS @NPS

Geologists Got It Wrong - Rivers Didn’t Need Plants To Meander
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https://sciencedaily.com/releases/2025/08/250831010533.htm <-- shared technical article
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https://doi.org/10.1126/science.adv4939 <-- shared paper
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#water #hydrology #hydrographic #river #meanders #meandering #sediment #vegetation #geomorphology #geomorphometry #geoscience #geology #riverdynamics #sinuosity #geometry #GIS #spatial #mapping #remotesensing #earthobservation #spatialanalyis #spatiotemporal #bank #pointbar #flow #stratigraphy #geologicrecord #braiding #biogeochemical #stabilised #banks #erosion #roots

Aquatic Habitat Response To Small Dam Removal Demonstrates Recovery In Three Years
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https://doi.org/10.1002/ecs2.70323
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#water #hydrology #fish #migration #fisheries #waterquality #restoration #dam #removal #reconnecting #dams #species #aquatic #environment #protection #forested #watershed #recreation #education #fisheries #wildlife #biodiversity #barrier #species #mobility #habitat #aquatic #natural #river #stream #connectivity #fishpassage #ecology #geomorphology #geomorphometry #monitoring #stakeholders #ShappPondDam #WappingerCreek #DutchessCounty #recovery #HudsonRiverEstuary #NewYorkState #USA #impoundment #downstream #upstream #sediment #sedimentation #macroinvertebrate #impact #assessment

Abrasion (geology) (Glaciology 🗻)

Abrasion is a process of weathering that occurs when material being transported wears away at a surface over time, commonly occurring with ice and glaciers. The primary process of abrasion is physical weathering. Its the process of friction caused by scuffing, scratching, wearing down, marring, and rubbing away of materials. The intensity of abras...

https://en.wikipedia.org/wiki/Abrasion_(geology)

#Abrasion #Erosion #Glaciology #Geomorphology #Sedimentology