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#geomorphology — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #geomorphology, aggregated by home.social.

  1. 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
    github.com/yannchemin/r.hydro.

  2. How Space Weather Could Bust The AI Boom
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    spacenews.com/how-space-weathe <-- shared technical article
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    futurism.com/artificial-intell <-- shared technical article, “AI Data Centers Pushing Electric Grid Into Meltdown”
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    doi.org/10.1146/annurev-earth- <-- 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)

  3. 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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    nationalgeographic.com/science <-- shared technical / media article
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    dancoecarto.com/ <-- shared @Daniel Coe portfolio and more
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    usace.contentdm.oclc.org/digit <-- 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

  4. 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...

    en.wikipedia.org/wiki/Bar_(riv

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

  5. 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

  6. 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

  7. River bifurcation (Geomorphology 🏞️)

    River bifurcation occurs when a river flowing in a single channel separates into two or more separate streams which then continue downstream. Some rivers form complex networks of distributaries, typically in their deltas. If the streams eventually merge again or empty into the same body of water, then the bifurca...

    en.wikipedia.org/wiki/River_bi

    #RiverBifurcation #Hydrology #WaterStreams #Geomorphology #FluvialLandforms #RiverBifurcations

  8. Collegue at our department hiring a PhD student for our 3-year project on floods in Mediterranean rivers! Remote sensing to study changes in river morphology and riparian canopy, including exciting field trips to wild rivers in Greece! 🏞️ 🌊 🛰️ Application deadline: 10/2, For detailed info mail to [email protected] #AcademicJobs #phd #geomorphology #hydrology #RemoteSening #rivers

  9. Meander (Geomorphology 🏞️)

    A meander is one of a series of regular sinuous curves in the channel of a river or other watercourse. It is produced as a watercourse erodes the sediments of an outer, concave bank and deposits sediments on an inner, convex bank which is typically a point bar. The result of this coupled erosion and sedimentation is the formation of a sinuous course as the chan...

    en.wikipedia.org/wiki/Meander

    #Meander #Rivers #Erosion #Limnology #WaterStreams #Geomorphology

  10. Guelta (Geomorphology 🏞️)

    A guelta is a pocket of water that forms in drainage canals or wadis in the Sahara. The size and duration will depend on the location and conditions. It may last year-round through the dry season if fed by a source such as a spring. When a river dries up, there may be pockets of water remaining along its course. In Western Sahara, gueltas correspond to oases.Some exa...

    en.wikipedia.org/wiki/Guelta

    #Guelta #Oases #Wadis #Wetlands #BodiesOfWater #Geomorphology

  11. The Fluvial Geomorphology Equivalent Of ‘Ontogeny Recapitulates Phylogeny’?
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    usgs.gov/3d-elevation-program <-- USGS’s 3DEP’s open data for elevation
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    This is a ‘quick and dirty’ visualisation that I made the other day with 3DEP iFSAR data to get a better sense of the fluvial geomorphology up in this area of NE Alaska near Kaktovik/Gordon, it is amazing what pops...
    Lay over some hydrology vectors, some of the underlying geology boundaries, etc - and the landforms become much easier to understand in terms of origin and development - the geomorphic/hydrologic/erosional/geologic/vegetative/etc equivalent of biology's “ontogeny recapitulates phylogeny”?
    #GIS #spatial #mapping #Alaska #USA #3DEP #opendata #elevation #iFSAR #remotesensing #radar #visualisation #fluvial #hydrology #geology #erosion #geomorphology #ontogeny #phylogeny #landforms #origin #development #vegetation #appliedscience #USGS #arctic #arcticocean #beaufortsea
    @USGS