(Article of periodic en Français - 1979)

Document title

Etiages. Application à l'Afrique occidentale et centrale du nord-ouest

Authors(s) and Affiliation(s)



Different approaches can be used in studying fluvial low waters. The use of simple numerical processes facilitates a primary approach to this phenomenon| a detailed statistical analysis of low waters shows their length and geographical extent. A cartographical representation of observed discharge minima gives some indications about influences of geophysical factors in their genesis. The study of low waters in both medium and low latitudes has progressed in the last decades owing to completed research in Africa achieved by the hydrological service of O.R.S.T.O.M. on low waters in equatorial regions (1958) and in tropical humid or Sahelian areas (1968-1974).


Article of periodic

published at : Bulletin de l'Association de géographes français Paris

Editor :

Millesime : 1979, vol. 56, no459 [pp. 61-71]

Bibliographic references : 12réf.



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