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Drought monitoring in the Seybouse basin (Algeria) over the last decades

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PL
Monitorowanie suszy w basenie Seybouse w Algierii w ciągu ostatnich dziesięcioleci
Języki publikacji
EN
Abstrakty
EN
Algeria is amongst the African countries most affected by climate change impacts especially by drought which caused considerable economic losses in the past decades. In this paper, drought monitoring for the period between 1970 and 2011 was conducted in the Seybouse watershed by analysing annual rainfall data in terms of variability and trends along with the calculation of the standardized precipitation index (SPI). The results indicated important inter-annual rainfall fluctuation and a significant increasing trend. The estimated drought indices indicated that the Seybouse watershed experienced in the past a long dry period with a moderate severity followed by a long wet period at the majority of the study area. Moreover, the interpolation of the standardized precipitation indices (SPI) on the entire Seybouse basin in GIS allowed visualizing and evaluating the spatial- -temporal evolution of drought in the region which should help the decision-makers in the management of water resources, agriculture and other activities that may be affected by drought.
PL
Algieria jest jednym z krajów Afryki najsilniej doświadczanych przez wpływ zmian klimatu, w szczególności przez susze, które w minionych dziesięcioleciach powodowały znaczne straty gospodarcze. W prezentowanych badaniach przeprowadzono monitoring susz w latach 1970–2011 w zlewni rzeki Seybouse, analizując zmienność i trendy rocznych opadów oraz obliczając standaryzowany indeks opadów (SPI). Wyniki dowodzą dużej zmienności opadów między latami i ukazują istotną tendencję wzrostową. Oszacowane wskaźniki suszy wskazują, że zlewnia Seybouse doświadczała w przeszłości długich okresów umiarkowanej suszy, po których następował długi okres wilgotnej pogody na większości badanych obszarów. Ponadto, interpolacja standaryzowanego wskaźnika opadu na całą zlewnię Sebouse za pomocą GIS umożliwiła wizualizację i ocenę rozwoju suszy w regionie. Powinno to pomóc decydentom w zarządzaniu zasobami wodnymi, rolnictwem i innymi rodzajami działalności, które mogą być zależne od suszy.
Wydawca
Rocznik
Tom
Strony
79--88
Opis fizyczny
Bibliogr. 45 poz., rys., tab.
Twórcy
autor
  • Badji Mokhtar University, Faculty of Engineering Sciences, Department of Hydraulics, BP 12, 23000 Annaba, Algeria
autor
  • Badji Mokhtar University, Faculty of Engineering Sciences, Department of Hydraulics, BP 12, 23000 Annaba, Algeria
autor
  • Kasdi Merbah University, Faculty of Applied Sciences, Department of Civil Engineering and Hydraulic, Route Ghardaïa, BP 511, Ouargla, 30000, Algeria
  • Badji Mokhtar University, Faculty of Engineering Sciences, Department of Hydraulics, BP 12, 23000 Annaba, Algeria
Bibliografia
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Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-afa88e5b-165f-4f88-a9a0-0d9d8324c140
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