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    86 repositories

    • LGAR-C

      Public
      Lumped Arid/Semi-arid Model (LASAM) simulates infiltration and surface runoff (two important components of the hydrologic cycle) based on Layered Green-Ampt wit…
      C++
      •
      Apache License 2.0
      •12•3•4•2•Updated Apr 17, 2026Apr 17, 2026

    • inundation-mapping

      Public
      Flood inundation mapping and evaluation software configured to work with U.S. National Water Model.
      mappingevaluationgis
      mappingevaluationgisnoaahydrologynational-hydrography-datasetinundationflood-inundation-mapsnational-water-center
      Python
      •
      Apache License 2.0
      •41•123•256•23•Updated Apr 17, 2026Apr 17, 2026

    • wres

      Public
      Code and scripts for the Water Resources Evaluation Service
      Java
      •
      Other
      •6•7•255•5•Updated Apr 17, 2026Apr 17, 2026

    • hydrotools

      Public
      Suite of tools for retrieving hydrological data and evaluating model output.
      pythonobservationsvalidation
      pythonobservationsvalidationsimulationmodelingevaluationverificationpandasnoaaforecasting
      Python
      •
      Apache License 2.0
      •21•66•11•0•Updated Apr 16, 2026Apr 16, 2026

    • cfe

      Public
      CFE is a conceptual rainfall-runoff model with an implementation of the Basic Model Interface.
      hydrologybmicsdms
      hydrologybmicsdms
      C
      •
      Apache License 2.0
      •31•25•24•10•Updated Apr 6, 2026Apr 6, 2026

    • nwm-ewts

      Public
      A multi-language logging framework for hydrologic modules that run within ngen or standalone
      Apache License 2.0
      •1•0•0•0•Updated Apr 6, 2026Apr 6, 2026

    • reference-builds

      Public
      Creates the reference flowpath and divide geometries for the OCONUS NGWPC Hydrofabric
      Apache License 2.0
      •0•0•0•0•Updated Apr 6, 2026Apr 6, 2026

    • ngen

      Public
      Next Generation Water Modeling Engine and Framework Prototype
      C++
      •
      Apache License 2.0
      •82•97•140•51•Updated Mar 30, 2026Mar 30, 2026

    • evapotranspiration

      Public
      C
      •
      Apache License 2.0
      •17•5•6•4•Updated Mar 13, 2026Mar 13, 2026

    • iso_c_fortran_bmi

      Public
      BMI Wrapper to connect a BMI implementation written in Fortran to C++
      Fortran
      •
      Apache License 2.0
      •1•0•0•1•Updated Mar 6, 2026Mar 6, 2026

    • snow17

      Public
      Fortran
      •
      Apache License 2.0
      •19•7•13•5•Updated Mar 6, 2026Mar 6, 2026

    • nwm-coastal

      Public
      A collection of coastal tools designed to implement skill assessments for coastal model runs and execute National Water Model (NWM) hindcast/forecast runs for s…
      Apache License 2.0
      •2•0•2•1•Updated Feb 27, 2026Feb 27, 2026

    • sac-sma

      Public
      Sacramento Soil Moisture Accounting Model
      Fortran
      •
      Apache License 2.0
      •17•9•5•4•Updated Feb 26, 2026Feb 26, 2026

    • topmodel

      Public
      Extending TOPMODEL, a rainfall-runoff model, to BMI (Basic Model Interface).
      hydrologybmicsdms
      hydrologybmicsdms
      C
      •
      Apache License 2.0
      •25•32•8•5•Updated Feb 18, 2026Feb 18, 2026

    • noah-owp-modular

      Public
      Modularized version of the NOAH-MP land surface model.
      Fortran
      •
      Apache License 2.0
      •30•11•16•4•Updated Feb 17, 2026Feb 17, 2026

    • gval

      Public
      A high-level Python framework to evaluate the skill of geospatial datasets by comparing candidates to benchmark maps producing agreement maps and metrics.
      pythonscienceenvironment
      pythonscienceenvironmentstatisticsresearchclimategeospatialgdalxarrayearth-science
      Jupyter Notebook
      •
      Other
      •4•25•16•0•Updated Feb 12, 2026Feb 12, 2026

    • hfngen

      Public
      R
      •
      Apache License 2.0
      •1•0•0•0•Updated Jan 30, 2026Jan 30, 2026

    • nwm-data-assimilation

      Public
      A collection of tools for integrating observed and simulated data for purposes of visualization, comparison, evaluation, and eventually state updates/adjustmen…
      Apache License 2.0
      •1•0•0•1•Updated Jan 23, 2026Jan 23, 2026

    • SLoTH

      Public
      C++
      •
      Apache License 2.0
      •9•0•0•4•Updated Jan 20, 2026Jan 20, 2026

    • SoilMoistureProfiles

      Public
      Computes 1D soil moisture profile for conceptual reservoirs (e.g., CFE) and layered-based reservoirs (e.g., LGAR)
      Jupyter Notebook
      •
      Apache License 2.0
      •9•6•3•4•Updated Jan 15, 2026Jan 15, 2026

    • hydrofabric-builds

      Public
      A repository containing end-to-end workflows to build the NGWPC Hydrofabric from reference datasets in support of NWMv4
      Apache License 2.0
      •2•2•0•1•Updated Dec 12, 2025Dec 12, 2025

    • data-service-notebooks

      Public
      Jupyter notebooks supporting WRDS usage.
      Jupyter Notebook
      •
      Apache License 2.0
      •2•3•0•0•Updated Dec 4, 2025Dec 4, 2025

    • ngencerf-ui

      Public
      Vue
      •
      Other
      •3•0•0•5•Updated Nov 19, 2025Nov 19, 2025

    • bmi-cxx

      Public
      C++
      •
      Other
      •1•0•1•0•Updated Nov 19, 2025Nov 19, 2025

    • ngencerf-docker

      Public
      Other
      •1•0•0•0•Updated Nov 19, 2025Nov 19, 2025

    • nwm-region-mgr

      Public
      Jupyter Notebook
      •1•1•0•3•Updated Nov 19, 2025Nov 19, 2025

    • nwm-eval-mgr

      Public
      Python
      •
      Other
      •2•0•0•2•Updated Nov 19, 2025Nov 19, 2025

    • nwm-cal-mgr

      Public
      Python
      •
      Other
      •2•0•0•2•Updated Nov 19, 2025Nov 19, 2025

    • nwm-msw-mgr

      Public
      Python
      •2•0•0•3•Updated Nov 19, 2025Nov 19, 2025

    • nwm-fcst-mgr

      Public
      Python
      •
      Other
      •2•0•0•2•Updated Nov 19, 2025Nov 19, 2025
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