topic_hydrology(1)

📦
version 8.4.2 · 5 versions
, in fedora 44

💧 TOPIC: HYDROLOGY 💧

okay so bestie, you opened topic_hydrology(1) — it's the hydrology topic page from the GRASS GIS User's Manual, and it's literally a whole glow-up of water-related modules. every single one is here, no gatekeeping. let's go 🫶

✨ the modules (aka the main characters) ✨

  • r.basins.fill — generates a watershed subbasins raster map 🌊
  • r.carve — generates stream channels 🏞️
  • r.drain — traces a flow through an elevation model or a cost surface on a raster map
  • r.fill.dir — filters stuff and generates a depressionless elevation map and a flow direction map, both from an elevation raster map you hand it
  • r.flow — constructs flowlines ✨
  • r.lake — fills a lake at a given point up to a given level 💧
  • r.path — traces paths from starting points, following the input directions
  • r.sim.sediment — sediment transport and erosion/deposition simulation using the path sampling method (SIMWE)
  • r.sim.water — overland flow hydrologic simulation using the path sampling method (SIMWE)
  • r.solute.transport — numerical calculation program for transient, confined and unconfined solute transport in two dimensions
  • r.stream.extract — performs stream network extraction 🏔️
  • r.terraflow — performs flow computation for massive grids (yes, massive, it said what it said)
  • r.topidx — creates a topographic index (wetness index) raster map from an elevation raster map
  • r.topmodel — simulates TOPMODEL, which is a physically based hydrologic model 🌈
  • r.uslek — computes the USLE Soil Erodibility Factor (K)
  • r.usler — computes the USLE R factor, the Rainfall erosivity index 🌧️
  • r.water.outlet — creates watershed basins from a drainage direction map
  • r.watershed — calculates hydrological parameters and RUSLE factors 👑
  • r3.flow — computes 3D flow lines and 3D flow accumulation

🦋 see also 🦋

also check out the corresponding keyword hydrology for additional references, bestie. iykyk 💅

🎀 the index situation 🎀

  • Main index
  • Topics index
  • Keywords index
  • Graphical index
  • Full index

💜 the official stuff 💜

© 2003-2025 GRASS Development Team, GRASS GIS 8.4.2 Reference Manual

and that's the whole page, periodt ✨ this was topic_hydrology(1), running on GRASS 8.4.2, with the copyright sitting pretty at © 2003-2025 GRASS Development Team — love that for them 🎀 go drink some water (hydrology joke, kind of) 💖

📦 where this page comes from