Annual safe groundwater yield in a semiarid basin using combination of water balance equation and water table fluctuation

Rezaei, Abolfazl; Mohammadi, Zargham

doi:10.1016/j.jafrearsci.2017.06.029

Cited by 23 publications

(17 citation statements)

References 48 publications

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“…Even these values are numerically different, they can be classified in the same order of magnitude. Other studies conducted on similar geological formations and under the same climate conditions in India [11,14] and in Iran [13] have obtained specific yield varying from 0.5 to 2% and 4% respectively. The comparison of the specific yield estimated at the Sanon experimental site by MRS with those estimated by pumping tests and by sample analysis in the laboratory, could imply that, in principle, the formula obtained by Vouillamoz et al [19] in Benin could be transposed to the Sanon site.…”

Section: Change Of Groundwater Storagementioning

confidence: 77%

“…However, their implementation is limited by problems of cost, time because it requires the execution and equipment of wells (pumping and wells) and the implementation of a long-term pumping. Recently, many authors [11][12][13][14] proposed methodologies for regionalizing specific yield at the watershed scale. These methods combine at cell scale (pumping scale) water-table fluctuation and groundwater-budget techniques in the absence of recharge from rainfall, an aggregation method and variogram based statistics and kriging techniques.…”

Section: Introductionmentioning

confidence: 99%

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Groundwater Storage Change Estimation Using Combination of Hydrogeophysical and Groundwater Table Fluctuation Methods in Hard Rock Aquifers

Koïta

Yonli²,

Soro

et al. 2018

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Abstract:This study aims to estimate the groundwater storage change of hard rock aquifers in the face of change. For this, the approach developed consisted initially in the implementation of 5 Magnetic Resonance Soundings (MRS) around the observation wells realized and monitored from 2014 to 2015 in the Sanon experimental site. In a second step, we determined the storage change using the MRS data and the water table fluctuation method. The MRS data show that the water content varies spatially from 4.5 to 1.3%. The maximum value is recorded at the central valley where a piezometric dome is observed. The specific yield varies from 2.4% in the central valley to 1.3% at the outlet. The renewed water resource is estimated at 116 mm in the central valley and 32 mm at the outlet, which corresponds respectively to 13 and 3% of the annual rainfall. The renewed water resource is consistent with the annual recharge. Thus, the combination of the MRS geophysical approach and water table fluctuation method is an efficient, fast and cheaper (compared with long-term pumping test) tool for the estimation of groundwater storage changes.

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Section: Change Of Groundwater Storagementioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Groundwater Storage Change Estimation Using Combination of Hydrogeophysical and Groundwater Table Fluctuation Methods in Hard Rock Aquifers

Koïta

Yonli²,

Soro

et al. 2018

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“…In fact, the specific yield, when estimates directly from pumping tests, involves some errors which come from the aquifer stratification, slow drainage of materials (i.e. delayed water) and air entrapped near the water table [8] [9]. According to Rezaei and Mohammadi [9], specific yield calculated with WTF …”

Section: Specific Yield Estimationmentioning

confidence: 99%

“…delayed water) and air entrapped near the water table [8] [9]. According to Rezaei and Mohammadi [9], specific yield calculated with WTF …”

Section: Specific Yield Estimationmentioning

confidence: 99%

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Recharge Estimation of Hard Rock Aquifers under Sahelian Climate Conditions Using Water Table Fluctuation: Case Study of Tougou Catchment, Burkina Faso

Koïta¹,

Sandwidi²,

Dara³

2017

JWARP

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This study aims to characterize water table fluctuations and estimate groundwater recharge in the Tougou catchment located in the Sahel zone of Burkina Faso. Water table fluctuation and groundwater budget approaches are developed on an experimental site equipped with observation wells. The trends of water fluctuations in the different layers of the weathering profile are similar. There is a time-lag response of groundwater recharge to the daily precipitation occurrences. The interaction between the upper (clayey alteration) and lower (transition zone-fractured schist complex) parts of the weathering profile shows that generally the hydraulic head in the upper part is higher than that of the lower part due to difference in drainage porosity. The latter varies at the catchment scale between 0.006 and 0.009 and is inversely proportional to the saturated thickness of the clayey alteration layer. The groundwater recharge is annually estimated between 36 and 49 mm, which correspond to 6% and 9% of mean annual rainfall in the catchment. Annual evapotranspiration was estimated to be about 223 to 443 mm.

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Large-scale climate variability footprint in water levels of alluvial aquifers across Iran

Rezaei

2022

Theor Appl Climatol

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The ability to predict future variability of groundwater resources in time and space is of critical importance in society's adaptation to climate variability and change. Periodic control of large scale ocean-atmospheric circulations on groundwater levels proposes a potentially effective source of longer term forecasting capability. In this study, as a first national-scale assessment, we use the continues wavelet transform, global power spectrum, and wavelet coherence analyses to quantify the controls of the Atlantic Multidecadal Oscillation (AMO), Pacific Decadal Oscillation (PDO), North Atlantic Oscillation (NAO), and El Niño Southern Oscillation (ENSO) over the representative groundwater levels of the 24 principal aquifers, scattered across different 14 climate zones of Iran.The results demonstrate that aquifer storage variations are partially controlled by annual to interdecadal climate variability and are not solely a function of pumping variations. Moreover, teleconnections are observed to be both frequency and time specific. The significant coherence patterns between the climate indices and groundwater levels are observed at five frequency bands of the annual (~1-yr), interannual (2-4-and 4-6-yr), decadal (8-12-yr), and interdecadal (14-18yr), consistent with the dominant modes of climate indices. AMO's strong footprint is observed at interdecadal and annual modes of groundwater levels while PDO's highest imprint is seen in interannual, decadal, and interdecadal modes. The highest controlling influence of ENSO is observed across the decadal and interannual modes whereas the NAO's footprint is marked at annual and interdecadal frequency bands. Further, it is observed that the groundwater variability being higher modulated by a combination of large-scale atmospheric circulations rather than each individual index. The decadal and interdecadal oscillation modes constitute the dominant modes in Iranian aquifers. Findings also mark the unsaturated zone contribution in damping and lagging of the climate variability modes, particularly for the higher frequency indices of ENSO and NAO where the groundwater variability is observed to be more correlated with lower frequent climate circulations such as PDO and AMO, rather than ENSO and NAO. Finally, it is found that the data length can significantly affect the teleconnections if the time series are not contemporaneous and only one value of coherence/correlation is computed for each particular series instead of separate computations for different frequency bands and different time spans.

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Annual safe groundwater yield in a semiarid basin using combination of water balance equation and water table fluctuation

Cited by 23 publications

References 48 publications

Groundwater Storage Change Estimation Using Combination of Hydrogeophysical and Groundwater Table Fluctuation Methods in Hard Rock Aquifers

Groundwater Storage Change Estimation Using Combination of Hydrogeophysical and Groundwater Table Fluctuation Methods in Hard Rock Aquifers

Recharge Estimation of Hard Rock Aquifers under Sahelian Climate Conditions Using Water Table Fluctuation: Case Study of Tougou Catchment, Burkina Faso

Large-scale climate variability footprint in water levels of alluvial aquifers across Iran

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