Source code for the Global Groundwater rain-fed Recharge (GGR) model

Global Groundwater Recharge Model v1.0

Overview

This is the first release (v1.0) of the Global Groundwater Recharge Model (GGR). It is a three-layer transient water balance model for estimating the daily diffuse rain-fed global groundwater recharge at a spatial resolution of 0.1°.

Features

• Comprehensive data integration: Combines multiple data sources including precipitation, total evapotranspiration and soil property data.
• Scalability: Designed to handle large data sets, making it suitable for global applications.
• Documentation: For more information about the GGR model, users are referred to the README file and Nazari et al. (2024) "Spatiotemporal dynamics of global groundwater recharge from 2001 to 2020". Journal of Hydrology

Installation

To install and set up the Global Groundwater Recharge Model, follow the instructions in the README file.

Licence

This project is released under the GNU General Public License.

Reference

Nazari, S., Kruse, I., Moosdorf, N., 2025. Spatiotemporal dynamics of global rain-fed groundwater recharge from 2001 to 2020. Journal of Hydrology, 650: 132490. DOI:10.1016/j.jhydrol.2024.132490

If you have any questions, please contact sara.nazari@leibniz-zmt.de