Spatial distribution of the daily precipitation concentration index in Algeria

Article, Other literature type English OPEN
Benhamrouche, A. ; Boucherf, D. ; Hamadache, R. ; Bendahmane, L. ; Martin-Vide, J. ; Teixeira Nery, J. (2015)
  • Publisher: Copernicus Gesellschaft Mbh
  • Journal: (issn: 1684-9981, eissn: 1684-9981)
  • Related identifiers: doi: 10.5194/nhess-15-617-2015
  • Subject: Algèria | Precipitations (Meteorology) | Rain and rainfall | Algeria | Precipitacions (Meteorologia) | Climatologia | Climatology | Pluja

In this paper, the spatial and temporal distribution of the daily precipitation concentration index (CI) in Algeria (south Mediterranean Sea) has been assessed. CI is an index related to the rainfall intensity and erosive capacity; therefore, this index is of great interest for studies on torrential rainfall and floods. Forty-two daily rainfall series based on high-quality and fairly regular rainfall records for the period from 1970 to 2008 were used. The daily precipitation CI results allowed the identification of three climate zones: the northern country, characterized by coastal regions with CI values between 0.59 and 0.63; the highlands, with values between 0.57 and 0.62, except for the region of Biskra (CI = 0.70); and the southern region of the country, with high rainfall concentrations with values between 0.62 and 0.69.