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hydroSWAT: Tools for multi-objective calibration and workflows for the SWAT model in R

Core features

  • Flexible data preparation: Convert gridded climate inputs into SWAT‑compatible forcing files.
  • Integrated execution: Configure and run SWAT simulations directly from R.
  • Custom calibration objectives: Define objectives across multiple variables, performance metrics, stations, and periods.
  • Advanced multi‑objective calibration: Use the NSGA‑II evolutionary algorithm with full parallelization support.
  • Comprehensive performance evaluation: Access over 20 metrics (e.g., NSE, log‑NSE, KGE, PBIAS).
  • Diagnostic visualizations: Create hydrographs, flow‑duration curves, and seasonal cycle plots.
  • Post‑processing tools: Summarize and analyze SWAT outputs at HRU, subbasin, and river‑reach levels.
  • Model compatibility: Support both the standard SWAT model and its tropical variant SWAT‑T, enabling ecohydrological modeling across diverse regions.

📦 Installation

To install the development version of hydroSWAT from GitHub:

# Install 'remotes' if not already installed
install.packages("remotes")

# Install hydroSWAT from GitHub
remotes::install_github("fernandezpalomino/hydroSWAT")

# Load the package
library(hydroSWAT)

📘 Example workflow

See the 👉 step‑by‑step calibration vignette or run vignette("calibrating_swat", package = "hydroSWAT") in R.

📖 Documentation

See the 👉 full hydroSWAT documentation — including all function references and the complete calibration workflow vignette.

📄 Citation

If you use hydroSWAT in your work, please cite:

Fernandez-Palomino, C. A. (2026). hydroSWAT: Tools for multi-objective calibration and workflows for the SWAT model in R. Zenodo. https://doi.org/10.5281/zenodo.18132896

You can also obtain the citation directly from R:

citation("hydroSWAT")

🤝 Contributing

Feedback, bug reports, and contributions are welcome via GitHub Issues.