Advertisement

Climate Change Impacts on Groundwater Active Recharge in Coastal Plain of Dar es Salaam (Tanzania)

  • Giuseppe SappaEmail author
  • Antonio TrottaEmail author
  • Stefania VitaleEmail author
Conference paper

Abstract

This paper presents some early results of the ACC Dar Project (Adapting to Climate Change in Coastal Dar es Salaam), a three-year project co-funded by the European Commission that aims to improve the effectiveness of municipal initiatives for supporting coastal peri-urban populations in their efforts to adapt to the impacts of Climate Change (CC). The present study is focused on changes in groundwater active recharge in Dar es Salaam’s coastal aquifer, which are attributable to two factors: the decrease in precipitation recorded over the last 10 years, and the change in land cover during the same period. To assess the impacts that these factors have had on active groundwater recharge, the hydrogeological inverse budget was applied, introducing new values for the potential infiltration factor. Temporal analysis of climatic and land cover data for the last 10 years reveal a decreasing trend in groundwater availability. Study results therefore indicate that aquifer recharge is directly related to the amount of precipitation that can infiltrate into the soil, which in turn depends on precipitation and land cover.

Keywords

Dar es salam Climate change Groundwater recharge Coastal aquifers Land cover 

References

  1. Civita et al (1999) Una metodologia per la valutazione della ricarica attiva degli acquiferi. Quaderni di Geologia applicata—vol 1 Pitagora Editrice BolognaGoogle Scholar
  2. Kent PE, Hunt JA, Johnstone DW (1971) The geology and geophysics of coastal Tanzania. Geophysical paper No. 6, National Environment Research Council, Institute of Geological Sciences, London, 101 pGoogle Scholar
  3. Mjemah IC (2007) Hydrogeological and hydrogeochemical investigation of a Coastal Aquifer in Dar es Salaam, Tanzania. PhD Thesis, Ghent University, Ghent, 222 pGoogle Scholar
  4. Mpanda (1997) Geological development of the East African coastal basin of Tanzania. Stockholm Contrib Geol 45(10):121 pGoogle Scholar
  5. Msindai (2002) Engineering geological mapping of Dar Es Salaam City, Tanzania. Tanz J Sci 28(2):83–96Google Scholar
  6. Sappa et al (2002) Groundwater budget of Maiella (Italy). In: Proceedings of the balancing the groundwater budget, Darwin (Australia)Google Scholar
  7. Sappa et al (2013) Evaluation of the groundwater active recharge trend in the coastal plain of Dar es Salaam (Tanzania). J Chem Pharm Res 5(12):548–552 Google Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.DICEA, Department of Civil, Building and Environmental Engineering – SapienzaUniversity of RomeRomeItaly

Personalised recommendations