Recent projects

Hydrogeology of the aquifer of Nubia

The Nubian Arenaia contains a trans boundary aquifer shared across Libya, Egypt, Sudan and Chad with reserves valued at 14.47 km3. Its water are regarded as “fossils” dated around 40000 years.
The aquifer has no relevant links with the current hydrologic cycle, the charging is negligible and its exploitation by definition is not sustainable. The Characteristics of the aquifer are still not very well known in Chad, also being a trans boundary aquifer the hydrogeological processes must be considered across national borders in order to prevent the use of water resources in one country may have undesirable consequences in the other.
The Project aims at developing a hydrogeological model according to geochemical analysis (isotopes) and piezomentric measurements, with registration of water points in a spatial database. In particular, the objective is the evaluation of the relationship between groundwater and surface water in northern Chad, which plays a decisive role for the survival of the population and for the maintenance of ecosystems built around the lakes.

More than 80% of the Switzerland ecological footprint on the water is located outside its territory, the project in Egypt and Libya (Great man–made River), plans to bring desert water from underground to coastal areas, affecting the distribution of water resources. The impact assessment derived from these water transfers requires a better understanding of the aquifer system to minimize the negative aspects.

Contacts
st.wwwsupsi@supsi.ch