4DHydro is a project that came out from a call for tender by  ESA to which we had the pleasure to participate. All the making of the project is, since last week documented on the 4DHydro website that you can find

Generating 3D visualizations of groundwater models is essential to analyze the flow regime, perform quality checks and see the interaction of the groundwater body with external factors / boundary conditions. The Flopy library has tools to export the parameters, boundary

This is an example of calcite dissolution with kinetics where a simplified rate and initial molality are defined. The tutorial covers creation of an input file for Phreeqc, database selection, Phreeqc simulation in Aquifer App and analysis of processed output

Sometimes we want to reproduce or want to get something similar to a desktop GIS environment on a Jupyter notebook with options to show/hide layers and select background maps, but there was a missing part on our effort and it

This is a tutorial of geochemical modeling in Phreeqc and Aquifer App that uses the REACTION keyword for the simulation of irreversible reactions that transfer a certain amount of elements to or from the solution. The selected example deals with

These lecture are actually part of the 2024 course in Hydrological Modelling. However because they can be of some more general interest, I am grouping them also here. They try to review the concepts of modelling in general and when