Highlighting drought in the Wadi Lakhdar Watershed Tafna, Northwestern Algeria

Gherissi, Radia; Baba-Hamed, Kamila; Bouanani, Abderrazak

doi:10.1007/s12517-021-07094-3

Cited by 14 publications

(7 citation statements)

References 39 publications

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“…By applying the three statistical tests (Pettitt's, Buishand's U statistic and Lee and Heghinian's test) and two drought indices (SPI and Ipmc), we concluded that over the observation period , the Eastern Mitidja plain precipitation identified two distinct periods: i) the first period is wet and extends from 1906 to 1973 and ii) the second period is dry from 1974 to 2018 which is characterized by a rainfall deficit of 15% to 19% compared to the first period. Moreover, research on climate variability has been conducted by many authors in the southern part of the Mediterranean basin, we cite: 1) in Algeria Meddi M and Meddi H, 2009, Drouiche et al, 2019, Gherissi et al, 2021 who estimated a rainfall deficit between 15% and 26%, 2) in Morocco and Tunisia, the rainfall deficit was estimated at 10% to 35% causing a decrease in surface flows (Ouhamdouch et al, 2018;Kingumbi et al, 2005). We can conclude that the climate variability response in the study area shows a behavior identical to that identified in the southern part of the Mediterranean basin.…”

Section: Discussionmentioning

confidence: 99%

“…The drought indices have been used to identify the wet and dry periods. We can cite: the Rainfall index (RI), the index of the deviation proportional to the mean (Ipm), The index of the deviation proportional to the cumulative average (Ipmc) and the Standardized Precipitation Index (SPI) (Gherissi, 2021). In this study and in order to estimate the degree of rainfall and hydrological drought, it was decided to use the Ipmc and SPI.…”

Section: The Climatic Indicesmentioning

confidence: 99%

“…The three homogeneity tests (Pettitt, Buishand's U statistic and Lee and Heghinian tests) were used to determine the breakup year (Gherissi et al, 2021) APAR: Average precipitation after the break.…”

Section: Statistical Approachmentioning

confidence: 99%

“…For instance, groundwater quantity is caused by modifications of the rainfall regime, which have worsened over the years due to climate change (Sappa et al, 2018;Lentini, 2021). In the regions of northern Algeria, several authors have proven a significant drop in precipitation from the mid-1970s especially in the west regions where the rainfall deficit varies between 16% and 43% (Meddi, H. & Meddi, M., 2009;Bouguera, 2020;Gherissi et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Impact of climatic variability on groundwater resources in the Eastern Mitidja plain, Algeria

2023

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The aim of this study is to assess the main climatic characteristics and their impact on the hydrological regime at the watershed and the hydrodynamic functioning of the aquifer in the Eastern Mitidja plain (Algeria, 2,382 millions km2). In detail, specific objectives are to determine the recharge mode of the aquifer, to propose solutions for the groundwater overexploitation and to remedy the seawater problem in its northeastern part. The application of three statistical methods (Pettitt’s, Buishand’s U statistic and, Lee and Heghinian’s tests) and two drought indices (SPI and Ipmc) allowed identifying the wet and dry periods for the time interval 1906-2018. In addition, the piezometric maps analysis for the years 1973, 1981, 2015 and 2020 was carried out to investigate the hydrodynamic behavior of the study area and to determine the effect of the hydrological regime on the hydrogeological functioning of the aquifer. Results obtained by the application of the three statistical methods and two drought indices indicate two distinct periods. The first period is wet and it extends from 1906 to 1973, while the second period is dry and it goes from 1974 to 2018. It is characterised by a rainfall deficit between 15% and 19% compared to the previous period (1906-1973). Furthermore, a significant drawdown in the piezometric levels is observed from 1973 to 2020, varying between 10 and 80 m, that indicates a negative trend of piezometric levels. This drawdown coincides with the rainfall deficit noticed during the period 1973-2018. Also, seawater intrusion was observed in the northeastern part of the plain. To enhance groundwater management, an effective remediation strategy is to use an artificial recharge technique from the existing wastewater treatment plants in the region, complemented by stopping the pumping of wells in coastal zones that are affected by seawater intrusion supplemented by a hydro-chemical monitoring of the groundwater.

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Section: Discussionmentioning

confidence: 99%

Section: The Climatic Indicesmentioning

confidence: 99%

Section: Statistical Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of climatic variability on groundwater resources in the Eastern Mitidja plain, Algeria

2023

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“…Some research [9][10][11][12][13][14] indicates the temporal versatility of the index is useful in determining the beginning and end of dry events, it allows the analysis of the impacts of droughts at different time scales, simply compared to other indices. Several authors have analyzed the advantages and disadvantages of SPI using different distributions, there are several recommended distributions for calculating the SPI.…”

Section: Introductionmentioning

confidence: 99%

Adjustment of the Standardized Precipitation Index (SPI) for the Evaluation of Drought in the Arroyo Pechelín Basin, Colombia, under Zero Monthly Precipitation Conditions

2022

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The evaluation of the meteorological drought is fundamental for the management of the water resource. One of the most used indices to evaluate the drought is the standardized precipitation index (SPI) due to its practicality and evaluation in a variety of time scales, however, this uses precipitation as the only variable, depending on the deviations in the precipitation values. This is important when evaluating the SPI, because in some ecosystems close to the equatorial zone, there are very warm periods with low rainfall, in which a large proportion of the data collected by the meteorological stations corresponds to zero. In this research, the SPI was calculated in the Pechelín basin located in Colombia, in which there is zero precipitation in a large proportion of the data, registering zero precipitation in the month of January and February in 67% and 70% respectively. As a result, the SPI values increased to “wet” ranges, only when the amount of data with zero precipitation exceeded half of the total data; this means that the SPI determines wrong values when it is calculated with zero-precipitation data in large proportions. Based on this finding, this study aims to modify the index by typing the distribution (using a correction factor K), finally correcting the SPI values, this correction was called SPI-C. The results indicate that the SPI-C improved the identification of drought, obtaining corresponding values that better represent the high frequency of zero precipitation existing in the study area.

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Comparison of the SPI and SPEI as drought assessment tools in a semi-arid region: case of the Wadi Mekerra basin (northwest of Algeria)

Berhail,

Katipoğlu

2023

Theor Appl Climatol

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Highlighting drought in the Wadi Lakhdar Watershed Tafna, Northwestern Algeria

Cited by 14 publications

References 39 publications

Impact of climatic variability on groundwater resources in the Eastern Mitidja plain, Algeria

Impact of climatic variability on groundwater resources in the Eastern Mitidja plain, Algeria

Adjustment of the Standardized Precipitation Index (SPI) for the Evaluation of Drought in the Arroyo Pechelín Basin, Colombia, under Zero Monthly Precipitation Conditions

Comparison of the SPI and SPEI as drought assessment tools in a semi-arid region: case of the Wadi Mekerra basin (northwest of Algeria)

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