Rainfall and Runoff Trend Analysis in the Wadi Mina Basin (Northern Algeria) Using Non-Parametric Tests and the ITA Method

Mohammed Achite, Tommaso Caloiero () and Abderrezak Kamel Toubal
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Mohammed Achite: Laboratory of Water & Environment, Faculty of Nature and Life Sciences, University Hassiba Benboual of Chlef, Chlef 02180, Algeria
Tommaso Caloiero: National Research Council-Institute for Agricultural and Forest Systems in the Mediterranean (CNR-ISAFOM), 87036 Rende, Italy
Abderrezak Kamel Toubal: Laboratory of Water & Environment, Faculty of Nature and Life Sciences, University Hassiba Benboual of Chlef, Chlef 02180, Algeria

Sustainability, 2022, vol. 14, issue 16, 1-23

Abstract: The aim of this paper is to analyze the temporal tendencies of monthly, seasonal, and annual rainfall and runoff in the Wadi Mina basin (north-western side of Africa) using data from five stations in the period from 1973–2012. With this aim, first, a trend analysis was performed using two non-parametric tests: the Theil–Sen estimator and the Mann–Kendall test. Then, to identify trends in the different rainfall and runoff values of the series, the Innovative Trend Analysis technique was further applied. The results of the application of the non-parametric tests on the rainfall data showed a general negative rainfall trend in the Wadi Mina basin for different timescales. Similarly, the results evidenced a general reduction in the runoff values, in particular in the Sidi Abdelkader Djillali and Oued Abtal stations, even though the results obtained for the Oued Abtal station are influenced by a dam. These results were further analyzed through Sen’s method, which enabled the trend identification of the different values (low, medium, and high) of the series.

Keywords: rainfall; runoff; climate change; trend; Wadi Mina basin (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:16:p:9892-:d:884942

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