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#alluvial — Public Fediverse posts

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

  1. 💧🌏 Greg Cocks @[email protected] ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.1007/s11600-022-009 <-- shared paper
    --
    H/T @Kuldeep Dutta | Geology-Earth Science
    “… In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains.
    Check out the [attached graphical abstract figure] for an integrated visual workflow of the entire disaster continuum from hillslope failure to floodplain transformation...”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km² of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm day−1) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R2 ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R2 ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades…”
    #EarthScience #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #ScientificReports #GeospatialAnalysis #DisasterMitigation #Landslide #trigger #Flooding #massmovement #extremeweather #engineeringgeology #floodplain #innundation #hillslope #fluvial #pluvial #alluvial #sediment #sedimentation #hydrometeorology #ArunachalPradesh #Assam #India #Brahmaputra #risk #hazard #geology #engineeringgeology #remotesensing #earthobservation #spatialanalysis #spatiotemporal #disaster #hydrogeomorphology #workflow

    #earthscience #remotesensing #himalayas #naturalhazards #climatechange #scientificreports
  2. 💧🌏 Greg Cocks @[email protected] ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.1007/s11600-022-009 <-- shared paper
    --
    H/T @Kuldeep Dutta | Geology-Earth Science
    “… In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains.
    Check out the [attached graphical abstract figure] for an integrated visual workflow of the entire disaster continuum from hillslope failure to floodplain transformation...”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km² of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm day−1) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R2 ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R2 ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades…”
    #EarthScience #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #ScientificReports #GeospatialAnalysis #DisasterMitigation #Landslide #trigger #Flooding #massmovement #extremeweather #engineeringgeology #floodplain #innundation #hillslope #fluvial #pluvial #alluvial #sediment #sedimentation #hydrometeorology #ArunachalPradesh #Assam #India #Brahmaputra #risk #hazard #geology #engineeringgeology #remotesensing #earthobservation #spatialanalysis #spatiotemporal #disaster #hydrogeomorphology #workflow

    #earthscience #remotesensing #himalayas #naturalhazards #climatechange #scientificreports
  3. 💧🌏 Greg Cocks @[email protected] ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.1007/s11600-022-009 <-- shared paper
    --
    H/T @Kuldeep Dutta | Geology-Earth Science
    “… In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains.
    Check out the [attached graphical abstract figure] for an integrated visual workflow of the entire disaster continuum from hillslope failure to floodplain transformation...”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km² of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm day−1) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R2 ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R2 ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades…”
    #EarthScience #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #ScientificReports #GeospatialAnalysis #DisasterMitigation #Landslide #trigger #Flooding #massmovement #extremeweather #engineeringgeology #floodplain #innundation #hillslope #fluvial #pluvial #alluvial #sediment #sedimentation #hydrometeorology #ArunachalPradesh #Assam #India #Brahmaputra #risk #hazard #geology #engineeringgeology #remotesensing #earthobservation #spatialanalysis #spatiotemporal #disaster #hydrogeomorphology #workflow

    #earthscience #remotesensing #himalayas #naturalhazards #climatechange #scientificreports
  4. 💧🌏 Greg Cocks @[email protected] ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.1007/s11600-022-009 <-- shared paper
    --
    H/T @Kuldeep Dutta | Geology-Earth Science
    “… In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains.
    Check out the [attached graphical abstract figure] for an integrated visual workflow of the entire disaster continuum from hillslope failure to floodplain transformation...”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km² of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm day−1) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R2 ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R2 ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades…”
    #EarthScience #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #ScientificReports #GeospatialAnalysis #DisasterMitigation #Landslide #trigger #Flooding #massmovement #extremeweather #engineeringgeology #floodplain #innundation #hillslope #fluvial #pluvial #alluvial #sediment #sedimentation #hydrometeorology #ArunachalPradesh #Assam #India #Brahmaputra #risk #hazard #geology #engineeringgeology #remotesensing #earthobservation #spatialanalysis #spatiotemporal #disaster #hydrogeomorphology #workflow

    #workflow #hydrogeomorphology #disaster #spatiotemporal #spatialanalysis #earthobservation
  5. 💧🌏 Greg Cocks @GregCocks ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.1007/s11600-022-009 <-- shared paper
    --
    H/T @Kuldeep Dutta | Geology-Earth Science
    “… In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains.
    Check out the [attached graphical abstract figure] for an integrated visual workflow of the entire disaster continuum from hillslope failure to floodplain transformation...”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km² of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm day−1) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R2 ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R2 ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades…”

    #earthscience #remotesensing #himalayas #naturalhazards #climatechange #scientificreports
  6. 💧🌏 Greg Cocks @[email protected] ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.5194/esurf-13-1281- <-- shared paper
    --
    doi.org/10.1007/s11069-025-077 <-- shared paper
    --
    [I recognise that the photo is instead for the floods, etc in Lubra, Nepal - but felt it better showed the hydrogeomorphical setting (sic) for the 'casual' post viewer...]
    H/T @Kuldeep Dutta
    “In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains…”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km2 of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm/day/) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R² ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R² ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades...”
    #EarthScience #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #ScientificReports #GeospatialAnalysis #DisasterMitigation #Landslide #Flooding #alluvial #fluvial #water #hydrology #hydrography #flood #flooding #spatialanalysis #spatiotemporal #mountain #plain #hydrometeorological #hydrogeomorphology #ArunachalPradesh #Assam #India #hillslope #floodplain #rainfall #precipitation #extremeweather #engineeringgeology #massmovement #landslide #debrisflow #risk #hazard #monitoring #GIS #spatial #mapping #remotesensing #satellite #Sentinel #sedimentation #humanimpacts #infrastructure #damage #cost #economics #public #safety #model #modeling #downstream

    #earthscience #remotesensing #himalayas #naturalhazards #climatechange #scientificreports
  7. 💧🌏 Greg Cocks @[email protected] ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.5194/esurf-13-1281- <-- shared paper
    --
    doi.org/10.1007/s11069-025-077 <-- shared paper
    --
    [I recognise that the photo is instead for the floods, etc in Lubra, Nepal - but felt it better showed the hydrogeomorphical setting (sic) for the 'casual' post viewer...]
    H/T @Kuldeep Dutta
    “In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains…”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km2 of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm/day/) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R² ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R² ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades...”
    #EarthScience #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #ScientificReports #GeospatialAnalysis #DisasterMitigation #Landslide #Flooding #alluvial #fluvial #water #hydrology #hydrography #flood #flooding #spatialanalysis #spatiotemporal #mountain #plain #hydrometeorological #hydrogeomorphology #ArunachalPradesh #Assam #India #hillslope #floodplain #rainfall #precipitation #extremeweather #engineeringgeology #massmovement #landslide #debrisflow #risk #hazard #monitoring #GIS #spatial #mapping #remotesensing #satellite #Sentinel #sedimentation #humanimpacts #infrastructure #damage #cost #economics #public #safety #model #modeling #downstream

    #earthscience #remotesensing #himalayas #naturalhazards #climatechange #scientificreports
  8. 💧🌏 Greg Cocks @[email protected] ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.5194/esurf-13-1281- <-- shared paper
    --
    doi.org/10.1007/s11069-025-077 <-- shared paper
    --
    [I recognise that the photo is instead for the floods, etc in Lubra, Nepal - but felt it better showed the hydrogeomorphical setting (sic) for the 'casual' post viewer...]
    H/T @Kuldeep Dutta
    “In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains…”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km2 of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm/day/) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R² ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R² ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades...”
    #EarthScience #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #ScientificReports #GeospatialAnalysis #DisasterMitigation #Landslide #Flooding #alluvial #fluvial #water #hydrology #hydrography #flood #flooding #spatialanalysis #spatiotemporal #mountain #plain #hydrometeorological #hydrogeomorphology #ArunachalPradesh #Assam #India #hillslope #floodplain #rainfall #precipitation #extremeweather #engineeringgeology #massmovement #landslide #debrisflow #risk #hazard #monitoring #GIS #spatial #mapping #remotesensing #satellite #Sentinel #sedimentation #humanimpacts #infrastructure #damage #cost #economics #public #safety #model #modeling #downstream

    #earthscience #remotesensing #himalayas #naturalhazards #climatechange #scientificreports
  9. 💧🌏 Greg Cocks @[email protected] ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.5194/esurf-13-1281- <-- shared paper
    --
    doi.org/10.1007/s11069-025-077 <-- shared paper
    --
    [I recognise that the photo is instead for the floods, etc in Lubra, Nepal - but felt it better showed the hydrogeomorphical setting (sic) for the 'casual' post viewer...]
    H/T @Kuldeep Dutta
    “In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains…”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km2 of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm/day/) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R² ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R² ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades...”
    #EarthScience #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #ScientificReports #GeospatialAnalysis #DisasterMitigation #Landslide #Flooding #alluvial #fluvial #water #hydrology #hydrography #flood #flooding #spatialanalysis #spatiotemporal #mountain #plain #hydrometeorological #hydrogeomorphology #ArunachalPradesh #Assam #India #hillslope #floodplain #rainfall #precipitation #extremeweather #engineeringgeology #massmovement #landslide #debrisflow #risk #hazard #monitoring #GIS #spatial #mapping #remotesensing #satellite #Sentinel #sedimentation #humanimpacts #infrastructure #damage #cost #economics #public #safety #model #modeling #downstream

    #downstream #modeling #model #safety #public #economics
  10. 💧🌏 Greg Cocks @GregCocks ·

    Compound Hydrogeomorphic Cascades And Rapid Upstream To Downstream Hazard Coupling In The Eastern Himalaya
    --
    doi.org/10.1038/s41598-026-529 <-- shared paper
    --
    doi.org/10.5194/esurf-13-1281- <-- shared paper
    --
    doi.org/10.1007/s11069-025-077 <-- shared paper
    --
    [I recognise that the photo is instead for the floods, etc in Lubra, Nepal - but felt it better showed the hydrogeomorphical setting (sic) for the 'casual' post viewer...]
    H/T @Kuldeep Dutta
    “In hilly regions transitioning rapidly to low gradient alluvial plains, localized hydrometeorological triggers can instantly scale into devastating basin wide disasters. This study dissects the September 2020 cascading hazard in parts of the Arunachal Pradesh-Assam corridor to quantify the rapid coupling between upstream hillslopes and downstream floodplains…”
    --
    “Extreme precipitation in the Eastern Himalaya is increasingly associated with coupled hillslope-floodplain hazards. This study examines the 17th-18th September 2020 rainfall event in Arunachal Pradesh initiating landslides and its downstream impacts in Assam, India, using multi-sensor satellite data and long-term rainfall records. Sentinel-2 imagery was used to map landslides and debris flows, Sentinel-1 SAR data to delineate flood extent, and IMD gridded rainfall (1996–2020) to analyse rainfall spell characteristics. The event triggered widespread slope failures, localized landslide damming, and a subsequent breach, generating sediment-laden flows that inundated ~ 100 km2 of the Dhemaji floodplain. A backscatter-derived Relative Flood Volume Index (RFVI) indicates spatial variability in inundation intensity, although it does not represent absolute flood volume. Rainfall analysis suggests that antecedent wetness from preceding spells preconditioned slopes, while peak daily rainfall (> 170 mm/day/) initiated landsliding. Power-law scaling shows negligible dependence of intensity on duration (R² ≈ 0.0004), whereas cumulative rainfall exhibits a stronger relationship with duration (R² ≈ 0.54). These results indicate distinct roles of rainfall intensity and accumulation in controlling landslide initiation and downstream flooding, respectively, highlighting the importance of compound rainfall forcing in rapid hydrogeomorphic cascades...”

    #earthscience #remotesensing #himalayas #naturalhazards #climatechange #scientificreports
  11. 💧🌏 Greg Cocks @[email protected] ·

    Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
    --
    doi.org/10.1016/j.earscirev.20 <-- shared paper
    --
    #water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

    #water #hydrology #hydrography #humanimpacts #human #settlement
  12. 💧🌏 Greg Cocks @[email protected] ·

    Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
    --
    doi.org/10.1016/j.earscirev.20 <-- shared paper
    --
    #water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

    #water #hydrology #hydrography #humanimpacts #human #settlement
  13. 💧🌏 Greg Cocks @[email protected] ·

    Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
    --
    doi.org/10.1016/j.earscirev.20 <-- shared paper
    --
    #water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

    #water #hydrology #hydrography #humanimpacts #human #settlement
  14. 💧🌏 Greg Cocks @[email protected] ·

    Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
    --
    doi.org/10.1016/j.earscirev.20 <-- shared paper
    --
    #water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

    #gulfofmexico #climate #detrital #neodymium #strontium #isotope
  15. 💧🌏 Greg Cocks @GregCocks ·

    Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
    --
    doi.org/10.1016/j.earscirev.20 <-- shared paper
    --

    #water #hydrology #hydrography #humanimpacts #human #settlement
  16. Benjamin Grant @[email protected] ·

    Two more from the last trip aross the pond.

    #photography #iceland #ísland #alluvial #waterfall #landscapephotography #naturephotography

    #naturephotography #landscapephotography #waterfall #alluvial #island #iceland
  17. Benjamin Grant @[email protected] ·

    Two more from the last trip aross the pond.

    #photography #iceland #ísland #alluvial #waterfall #landscapephotography #naturephotography

    #naturephotography #landscapephotography #waterfall #alluvial #island #iceland
  18. 💧🌏 Greg Cocks @[email protected] ·

    Estimation Of Groundwater Storage Loss Using Surface–Subsurface Hydrologic Modeling In An Irrigated Agricultural Region
    --
    doi.org/10.1038/s41598-025-929 <-- shared paper
    --
    #GIS #spatial #mapping #hydrology #water #groundwater #model #modeling #estimation #waterresources #watersecurity #irrigated #agriculture #mississippi #alluvialplain #alluvial #aquifer #pump #pumping #mining #SWAT #changes #spatialanalysis #spatiotemporal #surface #subsurface #evapotranspiration #recharge #discharge #massbalance #management

    #gis #spatial #mapping #hydrology #water #groundwater
  19. 💧🌏 Greg Cocks @GregCocks ·

    Estimation Of Groundwater Storage Loss Using Surface–Subsurface Hydrologic Modeling In An Irrigated Agricultural Region
    --
    doi.org/10.1038/s41598-025-929 <-- shared paper
    --

    #gis #spatial #mapping #hydrology #water #groundwater
  20. Metal Insider @[email protected] ·

    Whitechapel announce spring 2025 tour w/ Brand of Sacrifice, 200 Stab Wounds & Alluvial:

    #Whitechapel #HymnsinDissonance #SpringTour #TourAlert #BrandofSacrifice #200StabWoundsband #Alluvial

    metalinsider.net/touring/white

    #whitechapel #hymnsindissonance #springtour #touralert #brandofsacrifice #200stabwoundsband
  21. TentinQuarantino :damnified: @[email protected] ·

    The next one is actually an EP, sometimes I have to make an exception. #Alluvial 🇺🇸released an EP back in #January. I’m not too familiar with this band. But it’s something along the #ProgressiveDeathMetal #deatchore #djent (?) line. A really enjoyable EP and the lineup is also pretty spectacular. At least for me
    #AOTY2024 #TentinsReleaseMonth

    Death Is But A Door - EP by Alluvial (album.link/de/i/1707524108)

    #tentinsreleasemonth #aoty2024 #djent #deatchore #progressivedeathmetal #january
  22. TentinQuarantino :damnified: @[email protected] ·

    The next one is actually an EP, sometimes I have to make an exception. #Alluvial 🇺🇸released an EP back in #January. I’m not too familiar with this band. But it’s something along the #ProgressiveDeathMetal #deatchore #djent (?) line. A really enjoyable EP and the lineup is also pretty spectacular. At least for me
    #AOTY2024 #TentinsReleaseMonth

    Death Is But A Door - EP by Alluvial (album.link/de/i/1707524108)

    #tentinsreleasemonth #aoty2024 #djent #deatchore #progressivedeathmetal #january
  23. Crypto News @[email protected] ·

    Brevan Howard Backed Alluvial Launches Hub to Support Staking - Alluvial, a software development firm, backed by Brevan Howard Digital is launching the ... - cryptonews.com/news/brevan-how #brevanhowarddigital #definews #alluvial #staking

    #staking #alluvial #definews #brevanhowarddigital
  24. Crypto News @[email protected] ·

    Brevan Howard Backed Alluvial Launches Hub to Support Staking - Alluvial, a software development firm, backed by Brevan Howard Digital is launching the ... - cryptonews.com/news/brevan-how #brevanhowarddigital #definews #alluvial #staking

    #staking #alluvial #definews #brevanhowarddigital
  25. 💧🌏 Greg Cocks @[email protected] ·

    Rules Of River Avulsion Change Downstream
    --
    doi.org/10.1038/s41586-024-079 <-- shared paper
    --
    #GIS #spatial #mapping #river #water #hydrology #avulsion #geomorphology #geomorphometry #floodplain #flood #flooding #course #risk #hazard #elevation #topography #hydromorphic #hydrospatial #model #modeling #factors #coast #coastal #mountain #fan #riskassessment #global #spatialanalysis #management #mitigation #prediction #remotesensing #ICESat2 #FABDEM #Copernicus #algorithm #fluvial #alluvial #sediment #alluvium #sediment #machinelearning #graphdata #geostatistics #spatiotemporal

    #gis #spatial #river #mapping #water #hydrology
  26. 💧🌏 Greg Cocks @GregCocks ·

    Rules Of River Avulsion Change Downstream
    --
    doi.org/10.1038/s41586-024-079 <-- shared paper
    --

    #gis #spatial #mapping #water #hydrology #avulsion
  27. 💧🌏 Greg Cocks @[email protected] ·

    Assessing The Prediction Accuracy Of Geomorphon-Based Automated Landform Classification - An Example From The Ionian Coastal Belt Of Southern Italy
    --
    doi.org/10.3390/ijgi10110725 <-- shared paper
    --
    #GIS #spatial #mapping #automatedlandformclassification #geomorphology #polygenicterraces #ioniancoastalbelt #southernItaly #Italy #landform #extraction #ACL #prediction #accuracy #precision #geomorphometry #geomorphons #coastal #plain #drainage #hydrology #marine #fluvial #alluvial #sediment #sedimentation #terrace #geology #engineeringgeology #tool #remotesensing #model #modeling #hydrology #water #beach #Holocene

    #gis #spatial #mapping #automatedlandformclassification #geomorphology #polygenicterraces
  28. 💧🌏 Greg Cocks @GregCocks ·

    Assessing The Prediction Accuracy Of Geomorphon-Based Automated Landform Classification - An Example From The Ionian Coastal Belt Of Southern Italy
    --
    doi.org/10.3390/ijgi10110725 <-- shared paper
    --

    #alluvial #gis #spatial #mapping #automatedlandformclassification #geomorphology
  29. 🤘 The Metal Dog 🤘 @[email protected] ·

    #TheMetalDogArticleList
    #MetalSucks
    Alluvial Released a Violent, NSFW Video for “Death Is But A Door”
    Boom. Headshot.

    metalsucks.net/2023/11/27/allu

    #Alluvial #DeathIsButaDoor #MetalSucks #NSFWVideo #MusicVideo #HeavyMetal #RockMusic #HeavyRock

    #themetaldogarticlelist #metalsucks #alluvial #deathisbutadoor #nsfwvideo #musicvideo
  30. 🤘 The Metal Dog 🤘 @[email protected] ·

    #TheMetalDogArticleList
    #MetalSucks
    Alluvial Released a Violent, NSFW Video for “Death Is But A Door”
    Boom. Headshot.

    metalsucks.net/2023/11/27/allu

    #Alluvial #DeathIsButaDoor #MetalSucks #NSFWVideo #MusicVideo #HeavyMetal #RockMusic #HeavyRock

    #themetaldogarticlelist #metalsucks #alluvial #deathisbutadoor #nsfwvideo #musicvideo
  31. Alex Bardsley :orangewine: @[email protected] ·

    It's funny how often I start with tectonic plates when discussing the terroir of a wine region. It's also funny how the audience will look baffled for a minute or two until the connection clicks.
    #wine #terroir #geology #ParisBasin #graben #alluvial #volcanic #limestone #soils #faults #escarpment

    #wine #terroir #geology #parisbasin #graben #alluvial
  32. Alex Bardsley :orangewine: @[email protected] ·

    It's funny how often I start with tectonic plates when discussing the terroir of a wine region. It's also funny how the audience will look baffled for a minute or two until the connection clicks.
    #wine #terroir #geology #ParisBasin #graben #alluvial #volcanic #limestone #soils #faults #escarpment

    #wine #terroir #geology #parisbasin #graben #alluvial
  33. 🤘 The Metal Dog 🤘 @[email protected] ·

    #TheMetalDogArticleList
    #MetalInjection
    LAMB OF GOD, DEMON HUNTER, ALLUVIAL & More Among Metal Injection's Top Tracks Of The Week
    Check out our top 50 songs of the week!

    metalinjection.net/playlist/to

    #TopTracksOfTheWeek
    #LambOfGod
    #DemonHunter
    #Alluvial
    #MetalInjection
    #NewMusicFriday
    #MetalMusic
    #PlaylistSpotlight
    #MustListen

    #themetaldogarticlelist #metalinjection #toptracksoftheweek #lambofgod #demonhunter #alluvial
  34. 🤘 The Metal Dog 🤘 @[email protected] ·

    #TheMetalDogArticleList
    #MetalInjection
    LAMB OF GOD, DEMON HUNTER, ALLUVIAL & More Among Metal Injection's Top Tracks Of The Week
    Check out our top 50 songs of the week!

    metalinjection.net/playlist/to

    #TopTracksOfTheWeek
    #LambOfGod
    #DemonHunter
    #Alluvial
    #MetalInjection
    #NewMusicFriday
    #MetalMusic
    #PlaylistSpotlight
    #MustListen

    #themetaldogarticlelist #metalinjection #toptracksoftheweek #lambofgod #demonhunter #alluvial
  35. AI6YR Ben @[email protected] ·

    There is some crazy geology going on there around Sanbao. Look at these huge #alluvial #fans. Around 41.94992, 83.91687. #geology

    #alluvial #fans #geology
  36. AI6YR Ben @[email protected] ·

    There is some crazy geology going on there around Sanbao. Look at these huge #alluvial #fans. Around 41.94992, 83.91687. #geology

    #alluvial #fans #geology
  37. Asjad Naqvi :stata: @[email protected] ·

    Thanks @toddrjones for posting about the #Stata #alluvial package!
    ---
    RT @toddrjones
    Quick @Stata tip: you can make alluvial plots in Stata:

    ssc install alluvial
    sysuse nlsw88.dta, clear
    alluvial race married collgrad smsa union

    See github.com/asjadnaqvi/stata-al h/t @asjadnaqvi
    twitter.com/toddrjones/status/

    #stata #alluvial
  38. Asjad Naqvi :stata: @[email protected] ·

    A major update to the @Stata #alluvial package. v1.1 has the following changes:
    - labels pass correctly to the final graph
    - weights option added
    - missing categories now have their own color
    - offset option added to extend the x-axis.

    More info 👇
    github.com/asjadnaqvi/stata-al

    #alluvial
  39. Asjad Naqvi :stata: @[email protected] ·

    The #alluvial package takes a list of categorical variables and plots them across layers. Like the #sankey it also allows sigificant customization including colors, arc types, labels, showing missing values, proportions etc.
    👇

    #Stata :stata: #dataviz

    #alluvial #sankey #stata #dataviz
  40. Asjad Naqvi :stata: @[email protected] ·

    Second one is its close relative: #alluvial
    github.com/asjadnaqvi/stata-al

    That can be used to compare how caterogies are evolving in the dataset

    #Stata :stata: #dataviz

    👇

    #alluvial #stata #dataviz
  41. Asjad Naqvi :stata: @[email protected] ·

    Second one is its close relative: #alluvial
    github.com/asjadnaqvi/stata-al

    That can be used to compare how caterogies are evolving in the dataset

    #Stata :stata: #dataviz

    👇

    #alluvial #stata #dataviz
  42. keri leigh merritt, phd @[email protected] ·

    BTW: what you see here is the historical "blackbelt," know for its dark #alluvial soil.

    #Cotton thrived in the diagonal band, #rice on the coast

    The region had the highest levels of plantation slavery. It's still the most racially diverse.

    Black & young #Georgians saved us. Again.

    #senate #election #runoff #georgia

    #alluvial #cotton #rice #georgians #senate #election
  43. keri leigh merritt, phd @[email protected] ·

    BTW: what you see here is the historical "blackbelt," know for its dark #alluvial soil.

    #Cotton thrived in the diagonal band, #rice on the coast

    The region had the highest levels of plantation slavery. It's still the most racially diverse.

    Black & young #Georgians saved us. Again.

    #senate #election #runoff #georgia

    #alluvial #cotton #rice #georgians #senate #election
  44. Maarten Lambrechts @[email protected] ·

    Some excellent graphics (that alluvial!) in this unpaywalled piece by Bloomberg on the drought the Mississippi is suffering from, and what that means for logistics and exports bloomberg.com/graphics/2022-mi #DataViz #Mississippi #Alluvial

    #alluvial #mississippi #dataviz