pyflwdir
Fast methods to work with hydro- and topography data in pure Python.
basins d8 hydrography hydrology ldd topography watershed
Hydrosphere - Freshwater and Hydrology - Last synced: 15 Jun 2025 - Ranking: 14.3

HexWatershed
A mesh independent flow direction model for hydrologic models.
depression-filling flow-direction flow-routing gis graph hydrology river-networks terrain-analysis unstructured-meshes visualisation watershed
Hydrosphere - Freshwater and Hydrology - Last synced: 15 Jun 2025 - Ranking: 10.2

BASINS
Better Assessment Science Integrating Point and Nonpoint Sources is a multipurpose environmental analysis system designed to help regional, state, and local agencies perform watershed- and water quality-based studies.
basins hspexp hspf modeling water-quality watershed
Hydrosphere - Freshwater and Hydrology - Last synced: 15 Jun 2025 - Ranking: 8.3

Mohid
A modular finite volumes water-modeling system written in ANSI-Fortran95 using an Object-oriented programming philosophy, integrating diverse mathematical models and supporting graphical user interfaces that manage all the pre- and post-processing.
biogeochemical-model catchment circulation estuary fortran hydrodynamic-modeling lagrangian-ocean-modelling mohid ocean oil-spills open-source watershed watershed-modeling
Hydrosphere - Ocean Models - Last synced: 15 Jun 2025 - Ranking: 8.1

WaterwayMap
River Basins from OpenStreetMap.
data-visualization geo geospatial openstreetmap openstreetmap-data osm osm-data river-network-analysis river-networks topology water watershed
Hydrosphere - Ocean and Hydrology Data Access - Last synced: 15 Jun 2025 - Ranking: 6.7

shadia
An R package that was designed to run dam passage performance standard models for American shad and other herrings.
climate dam fish-passage fisheries herring hydropower individual-based management-strategy-evaluation r river shad watershed
Biosphere - Marine Life and Fishery - Last synced: 15 Jun 2025 - Ranking: -Infinity
