A combined methodology for estimating the potential natural aquifer recharge in an arid environment

Carletti, Alberto; Canu, Simona; Motroni, Andrea; Ghiglieri, Giorgio

doi:10.1080/02626667.2019.1662422

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…For this reason, this kind of approach is not suitable for ungauged basins in arid environments, where the water balance is almost negative throughout the year [9,10,46,47]. However, calculation of the water balance on a daily time step can help to solve this issue, as P sometimes greatly exceeds ET on a single day, even in arid regions [13,48,49].…”

Section: Discussionmentioning

confidence: 99%

“…The direct quantification of aquifer recharge is a difficult task largely because recharge rates vary greatly in space and time, and thus direct measurements can only be obtained at the plot scale, for instance, from lysimeters [6][7][8]. For groundwater recharge estimation, many different methods and techniques have been developed over the years and intensively discussed in the literature [9][10][11][12] The different approaches mainly depend on the availability of data and the required level of accuracy [13], as well as on the sources and mechanisms of recharge [11]. At the regional scale, numerical modeling approaches are usually applied to assess recharge and the relationships between climate, land-use changes, and recharge [14] and references therein.…”

Section: Introductionmentioning

confidence: 99%

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Quantifying Groundwater Resources for Municipal Water Use in a Data-Scarce Region

Borzì

Bonaccorso

2021

Hydrology

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Groundwater is a major source of drinking water worldwide, often considered more reliable than surface water and more accessible. Nowadays, there is wide recognition by the scientific community that groundwater resources are under threat from overexploitation and pollution. Furthermore, frequent and prolonged drought periods due to climate change can seriously affect groundwater recharge. For an appropriate and sustainable management of water systems supplied by springs and/or groundwater withdrawn from aquifers through drilling wells or drainage galleries, the need arises to properly quantify groundwater resources availability, mainly at the monthly scale, as groundwater recharge is influenced by seasonality, especially in the Mediterranean areas. Such evaluation is particularly important for ungauged groundwater bodies. This is the case of the aquifer supplying the Santissima Aqueduct, the oldest water supply infrastructure of the city of Messina in Sicily (Southern Italy), whose groundwater flows are measured only occasionally through spring water sampling at the water abstraction plants. Moreover, these plants are barely maintained because they are difficult to reach. In this study, groundwater recharge assessment for the Santissima Aqueduct is carried out through a GIS-based inverse hydrogeological balance methodology. Although this approach was originally designed to assess aquifer recharge at the annual scale, wherever a model conceptualization of the groundwater system was hindered by the lack of data, in the present study some changes are proposed to adjust the model to the monthly scale. In particular, the procedure for evapotranspiration assessment is based on the Global Aridity Index within the Budyko framework. The application of the proposed methodology shows satisfactory results, suggesting that it can be successfully applied for groundwater resources estimation in a context where monthly information is relevant for water resources planning and management.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quantifying Groundwater Resources for Municipal Water Use in a Data-Scarce Region

Borzì

Bonaccorso

2021

Hydrology

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“…The present paper focuses on the soil moisture dynamics of Jessour and is the continuation of the work of Calianno et al [11] that compared the ability of a Jesr to store soil moisture in comparison with a similar site without a Jesr in the Dahar plateau (region of Zammour). On the one hand, previous works have already shown the quantified added value of water harvesting techniques on soil moisture using water balance or rainfall-infiltration modeling [12][13][14][15] and remote sensing [16]. Studies including on-site real-time soil moisture measurements exist for Jessour systems [4,10,17] and for various other techniques: micro catchments [18], stone barriers and earth bunds [19], and bench terraces [20].…”

Section: Introductionmentioning

confidence: 99%

Upstream-Downstream Influence of Water Harvesting Techniques (Jessour) on Soil Water Retention in Southeast Tunisia

Calianno

Fraj

Fallot

et al. 2023

Water

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Weather parameters and soil moisture profiles were measured at an hourly time step during four agricultural years (September to October, from 2018–19 to 2021–22) in two Jessour (water harvesting cultivated terraces) of the same valley in Zmerten (southeastern Tunisia), characterized by an arid climate. One instrumented Jesr (singular of Jessour) was located upstream and the other one downstream. During each dry season, when crops experience water stress, the downstream Jesr had a higher available water content than the upstream one; in the downstream Jesr the soil profile moisture remained above the wilting point, whereas in the upstream soil surface, moisture levels decreased to below the wilting point. High accumulation/low intensity rains (causing saturation/excess runoff) flooded both upstream and downstream Jessour from 50 mm of cumulative rainfall, whereas high intensity/low accumulation rains (causing infiltration/excess runoff) activated the downstream Jesr from an intensity of 15.2 mm/h, and a combination of moderate intensity and moderate accumulation rains activated both Jessour from an intensity of 8 mm/h and a cumulative rainfall of 33 mm. We propose to set 50 mm of cumulative rainfall and/or 6.4 mm/h of intensity as threshold values for the activation of the Jessour system in Zmerten. However, significant soil moisture recharges can occur even without activation of the Jessour system.

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Multiple Water Reservoirs in African Continent: Scarcity, Abundance and Distribution

Bakouri

Bouita

Dimane

et al. 2022

Innovations in Smart Cities Applications Volume 5

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A combined methodology for estimating the potential natural aquifer recharge in an arid environment

Cited by 4 publications

References 39 publications

Quantifying Groundwater Resources for Municipal Water Use in a Data-Scarce Region

Quantifying Groundwater Resources for Municipal Water Use in a Data-Scarce Region

Upstream-Downstream Influence of Water Harvesting Techniques (Jessour) on Soil Water Retention in Southeast Tunisia

Multiple Water Reservoirs in African Continent: Scarcity, Abundance and Distribution

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