☝️ What happens when you treat terrain morphometry like satellite bands?
⚙️ An experimental RGB composite of an industrial micro-catchment in Kryvyi Rih, synthesized directly from DEM hydro-conditioned derivatives:
🔹 Red: Channel Network Distance (hydraulic connectivity)
🔹 Green: Total Catchment Area / Flow Accumulation (upscale contributing mass)
🔹 Blue: LS-Factor / Slope Length-Steepness (RUSLE physical erosion capacity).
⚙️ The color mixing immediately separates the basin into physical domains:
🔹 Bright magenta/neon ribbons: Critical erosion and transport vectors where steep slope length converges with active channel flow.
🔹 Vibrant green zones: Planar accumulation sectors and potential geochemical sedimentation traps.
🔹 Dark interfluves: Geomorphologically stable plateau surfaces.
#Geomorphometry #Hydrology #SpatialData #RStats #SAGAGIS #TerrainAnalysis #DEM #EnvironmentalGeology #GIS #DataVisualization #InhuletsRiver
#sagagis
2 posts · Last used Sep 06
⚠️ Why standard GIS routing (D8, Sink Fill) fails in complex mining regions: 300m open pits become fake "lakes", and underground river tunnels are completely ignored.
To map surface drainage across central Kryvyi Rih, I built a custom DEM hydro-conditioning pipeline:
🔹 Selective sink filtering (true pits vs DEM noise)
🔹 Subsurface conduit burn-in (diversion tunnels)
🔹 Closed micro-catchment delineation
Crucial for geochemical transport & geotechnical risks.
🛠️ #RStats (#terra, #Rsagacmd), #QGIS, #SAGAGIS
#GIS #Hydrology #HydroEnforcement #FOSSGIS #Mining #Geospatial #KryvyiRih #DigitalTerrainAnalysis
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