Global Groundwater Information System (GGIS)

The Global Groundwater Information System (GGIS) is an interactive, web-based portal to groundwater-related information and knowledge. 

The GGIS consists of several modules structured around various themes. Each module has its own map-based viewer with underlying database to allow storing and visualizing geospatial data in a systematic way. The following disclaimer and license are applicable to the GGIS, as well as to all other IGRAC products.  

PLEASE NOTE: Currently, the GGIS portal is being updated and it is not availale at it's usual address The new GGIS portal will be available in the second half of January 2021.

Transboundary groundwaters

In the modules below, you can obtain more information about transboundary aquifers (TBA's).

Shared by Albania, Bosnia and Herzegovina, Croatia and Montenegro.

Contains 592 identified TBAs (incl 226 transboundary ‘groundwater bodies'.

Selection of 199 aquifers and 43 SIDS.

Project Information Management System (IMS), containing data for case study areas in Central America, Southern Africa and Central Asia.

Shared between Botswana, Namibia and South Africa. 

Shared by Kazakhstan and Uzbekistan.

Overview containing 199 information sheets on transboundary aquifers.

Contains all transboundary aquifers' data.

Global Country Data and Regional Maps

The modules below provide groundwater information on country or regional level. 

Contains all regional and national groundwaters data.

Groundwater information on country level.

Global groundwater stress maps, based on GRACE data, global inventories and research.

Global groundwater quality maps on probability and occurrence.

Quantitative continent-wide maps for Africa.

Groundwater monitoring

The module(s) below give more information about groundwater monitoring. 

IGRAC's groundwater monitoring data.

Managed Aquifer Recharge

The module(s) below give more information on Managed Aquifer Recharge (MAR). 

Global MAR sites and regional MAR suitability maps. 

Small Islands

The modules below give more groundwater-related information on small islands (SIDS). 

Contains data on 43 SIDS from TWAP project. 

Overview containing 43 information sheets on Small Island Developing States.


Below you can find all modules that are not directly related to one of the categories above.

All available GGIS manuals.

Uploading, storing and searching additional information.