Preprints
https://doi.org/10.5194/essd-2020-281
https://doi.org/10.5194/essd-2020-281

  19 Nov 2020

19 Nov 2020

Review status: a revised version of this preprint is currently under review for the journal ESSD.

The African Database of Hydrometric Indices (ADHI)

Yves Tramblay1, Nathalie Rouché1, Jean-Emmanuel Paturel1, Gil Mahé1, Jean-François Boyer1, Ernest Amoussou2, Ansoumana Bodian3, Honoré Dacosta4, Hamouda Dakhlaoui5,6, Alain Dezetter1, Denis Hughes7, Lahoucine Hanich8,9, Christophe Peugeot1, Raphael Tshimanga10, and Patrick Lachassagne1 Yves Tramblay et al.
  • 1HydroSciences Montpellier, Univ. Montpellier, CNRS, IRD, Montpellier, France
  • 2Département de Géographie et Aménagement du Territoire (DGAT) de l’Université de Parakou (UP), BP 123 Parakou, Bénin
  • 3Laboratoire Leïdi “Dynamique des Territoires et Développement”, Université Gaston Berger (UGB), BP 234 - Saint Louis, Sénégal
  • 4Département de Géographie-FLSH, Université Cheikh Anta Diop de Dakar
  • 5LMHE, Ecole Nationale des Ingénieurs de Tunis, University of Tunis El Manar, BP 37, 1002 Tunis le Belvédère, Tunisia
  • 6Ecole Nationale d’Architecture et d’Urbanisme, University of Carthage, Rue El Quods, 2026, Sidi Bou Said, Tunisia
  • 7Institute for Water Research, Rhodes University, South Africa
  • 8L3G Laboratory, Earth Sciences Department, Faculty of Sciences & Techniques, Cadi Ayyad University, BP 459, 40000 Marrakech, Morocco
  • 9Mohammed VI Polytechnic University (UM6P), Centre for Remote Sensing and Application, Morocco
  • 10Congo Basin Water Resources Research Center -CRREBaC, University of Kinshasa, Kinshasa, Democratic Republic of the Congo

Abstract. The African continent is probably the one with the lowest density of hydrometric stations currently measuring river discharge, despite the fact that the number of operating stations was quite important until the 70s. This new African Database of Hydrometric Indices (ADHI) is compiling data from different sources carefully checked for quality control. It includes about 1500 stations with at least 10 years of daily discharge data over the period 1950–2018. The average record length is 19 years and for over 100 stations complete records are available over 50 years. With this dataset spanning most regions of the African continent, several hydrometric indices have been computed, representing mean flow characteristics and extremes (low flows and floods), and are made accessible to the scientific community. The database will be updated on a regular basis to include more hydrometric stations and longer time series of river discharge. The ADHI database is available for download at: https://doi.org/10.23708/LXGXQ9 (Tramblay and Rouché, 2020).

Yves Tramblay et al.

 
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Yves Tramblay et al.

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ADHI: African Database of Hydrometric Indices Tramblay, Y. and Rouche, N. https://doi.org/10.23708/LXGXQ9

Yves Tramblay et al.

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Short summary
This dataset provides a set of hydrometric indices for about 1500 stations across Africa with daily discharge data. These indices are representing mean flow characteristics and extremes (low flows and floods), allowing to study the long-term evolution of hydrology in Africa and support the modelling efforts that aim at reducing the vulnerability of African countries to hydro-climatic variability.