Detecting hydro-climatic change using spatiotemporal analysis of rainfall time series in Western Algeria

Leila Hamlaoui-Moulai (), Mohammed Mesbah, Doudja Souag-Gamane and Abderrahmane Medjerab

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2013, vol. 65, issue 3, 1293-1311

Abstract: The knowledge of the climatic behavior especially that one of semi-arid regions is required to optimize the management of water resources. Here climate variability is directly related to water resources that are of a high socio-economic and environmental significance. This work deals mainly with a statistical analysis of the precipitation regime to assess its spatial distribution and temporal variation in north-western Algeria. For this, a time series and a principal component analysis are performed on rainfall series representing annual precipitations of twenty-one meteorological stations for the period 1914 to 2004, the most complete and longest of West Algeria, in order to detect patterns and trends in the region. A spectral analysis of the time series revealed the existence of a period of roughly 30 years for all stations. Furthermore, the trend of a wide part of the obtained spectra suggests the existence of another period longer than the samples size. Copyright Springer Science+Business Media Dordrecht 2013

Keywords: Rainfall series; Statistics; Cartography; Spectra analysis; West Algeria (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:65:y:2013:i:3:p:1293-1311

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DOI: 10.1007/s11069-012-0411-2

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