Welcome to GWHAT’s documentation!

GWHAT (Ground-Water Hydrograph Analysis Toolbox) is a free, open source, and cross-platform interactive computer program whose main focus is the interpretation of observation well hydrographs. It is written in the Python 3 programming language and is currently maintained and developed by Jean-Sébastien Gosselin at INRS. The source code and a stand-alone executable for the Windows platform are available free of charge for download on GitHub.

If you encounter any problems or errors during program execution, have any questions, or have suggestions on how to improve GWHAT, please contact Jean-Sébastien Gosselin at jean-sebastien.gosselin@ete.inrs.ca.

User Documentation

• 1. Getting Started
  • 1.1. Installing GWHAT on a Windows system
  • 1.2. Updating GWHAT on a Windows system
  • 1.3. Running GWHAT from the source files
• 2. Project Management in GWHAT
  • 2.1. Creating a new project
  • 2.2. Opening an existing project
  • 2.3. Project Folders
  • 2.4. Project Files
• 3. Data Management in GWHAT
  • 3.1. Importing Data
  • 3.2. Input data files format
  • 3.3. Exporting Data
• 4. Downloading Daily Weather Data
  • 4.1. Downloading weather data
  • 4.2. Searching for weather data
  • 4.3. Formatting the weather datafiles
• 5. Gapfilling Daily Weather Data
  • 5.1. Loading the weather data files
  • 5.2. Merging two weather data files
  • 5.3. Filling the gaps in the data
  • 5.4. Output files
  • 5.5. Setting the parameters
  • 5.6. Uncertainty Assessment
• 6. Plotting the Hydrographs
  • 6.1. Components of the Hydrograph
  • 6.2. Page and figure settings
  • 6.3. Axis settings
  • 6.4. Color Settings
• 7. Weather Normals Vizualisation
• 8. Modelling the Recession
• 9. Computing the Well Barometric Response Function
• 10. Estimating Groundwater Recharge
• 11. About GWHAT
  • 11.1. Copyright
  • 11.2. Contributors
  • 11.3. Feedback
  • 11.4. Acknowledgments
• 12. Glossary