Simulating Future Groundwater Recharge in Coastal and Inland Catchments

Busico, Gianluigi; Ntona, Maria Margarita; Carvalho, S. C. P.; Patrikaki, Olga; Voudouris, Konstantinos; Kazakis, Nerantzis

doi:10.1007/s11269-021-02907-2

Cited by 38 publications

(18 citation statements)

References 35 publications

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“…The changes recorded in the distribution of the vulnerability to SI, and in particular its exacerbation, are mainly attributable to the increase in RI, which in 2050 will be up to three time stronger than 2018 [27] and, even if to a lesser extent, to the impact of subsidence. On the other hand, the decrease in recharge [48][49][50] with the relative lowering of the water table and coastal erosion will only marginally affect the enlargement of highly vulnerable areas. The predominant role of RI ultimately derives from the expected sea-level rise, which will push highly saline sea waters farther into the coastal aquifers, but also along the terminal stretches of the rivers that in turn will let the saline water percolate downward to the unconfined aquifers.…”

Section: Future Seawater Intrusion Assessmentmentioning

confidence: 99%

“…In detail, approximately 4000 ha more could face salinization issues compared to 2020; in fact, in 2050 the total extension of arable land with high and very high vulnerability will be 10,260 ha. Whereas more than 70% of these territories are currently utilized for agricultural production, the predicted scenario for 2050 could lead to a reduction in suitable land for agriculture [50] due to soil salinization. Here, the shallow depth to the water table together with the depressed morphology, which will enhance water salinization, could directly influence the quality of water taken up by roots, thus limiting plant growth [51].…”

Section: Actual and Future Seawater Intrusion Comparisonmentioning

confidence: 99%

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Actual and Forecasted Vulnerability Assessment to Seawater Intrusion via GALDIT-SUSI in the Volturno River Mouth (Italy)

et al. 2021

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Coastal areas have become increasingly vulnerable to groundwater salinization, especially in the last century, due to the combined effects of climate change and growing anthropization. In this study, a novel methodology named GALDIT-SUSI was applied in the floodplain of the Volturno River mouth for the current (2018) and future (2050) evaluation of seawater intrusion accounting for the expected subsidence and groundwater salinization rates. Several input variables such as digital surface model, land use classification, subsidence rate and drainage system have been mapped via remote sensing resources. The current assessment highlights how areas affected by salinization coincide with the semiperennial lagoons and inland depressed areas where paleosaline groundwaters are present. The future assessment (2050) shows a marked increase of salinization vulnerability in the coastal strip and in the most depressed areas. The results highlight that the main vulnerability driver is the Revelle index, while predicted subsidence and recharge rates will only slightly affect groundwater salinization. This case study indicates that GALDIT-SUSI is a reliable and easy-to-use tool for the assessment of groundwater salinization in many coastal regions of the world.

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Section: Future Seawater Intrusion Assessmentmentioning

confidence: 99%

Section: Actual and Future Seawater Intrusion Comparisonmentioning

confidence: 99%

Actual and Forecasted Vulnerability Assessment to Seawater Intrusion via GALDIT-SUSI in the Volturno River Mouth (Italy)

et al. 2021

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“…They identified the main anthropogenic hydrogeochemical processes, responsible of groundwater pollution (domestic waste, untreated wastewater and intensive use of chemical fertilizers in agriculture) and of groundwater quality degradation. Accordingly, groundwater quality assessment has become a necessary and mandatory task to achieve for the current and future qualitative management groundwater, also in view of expected climate changes which will further decrease the groundwater availability in Mediterranean regions (Busico et al 2021).…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Spatial analysis and mapping of the groundwater quality index for drinking and irrigation purpose in the alluvial aquifers of upper and middle Cheliff basin (north-west Algeria)

et al. 2022

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The proposed study aims to assess groundwater quality and suitability of the Upper and Middle Cheliff plains (northwest of Algeria) for irrigation and drinking. Here the groundwater is the main source for domestic, agricultural and industrial activities similarly to any others region of the world. The suitability for drinking and for irrigation was evaluated on the basis of water quality index, salinity risk, hardness risk, sodium risk, magnesium risk, permeability index, water infiltration rate, Kelly index and Wilcox and Richards diagrams. The aquifer system is mainly composed by alluvium (gravel, sand, silt, clay, …) from the Mio-Plio-Quaternary. The results of this study highlighted that the majority of the chemical elements analyzed exceed the WHO's drinking water standards and FAO's irrigation water standards. Based on the GroundWater Quality Index (GWQI) results, the Upper and Middle Cheliff groundwater plains shows Doubtful class in most of the plains. In addition, the GroundWater quality Index for Irrigation (GWQII) shows the predominance of the Good/Permissible groundwater quality class in most of the plains. According to these results, drinking water can cause health problems (a danger) for the human consumption making necessary a proper treatment be able to use it. As for irrigation water, it does not present a danger for irrigating for the vast fields of the region, with the exception of sensitive crops such: garlic, onion, beans and strawberry. The proposed approach demonstrated to be appropriate in assessing the groundwater quality for irrigation and drinking water supply since it can be easy applicable and suitable in humid, arid or semi-arid regions around the world.

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“…Diurnal precipitation variations play an important role in the climate system on regional and even global scales and significantly impact water resources security, ecosystems, agricultural activity, human health and socioeconomics [1][2][3]. As a result of surface temperature, solar radiation and local atmospheric circulation, the daytime and night-time rainfall presents obvious spatial and temporal differences and is closely related to the change in daily precipitation [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Variations in Daytime and Night-Time Precipitation on the Yunnan–Guizhou Plateau from 1960 to 2017

et al. 2022

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Spatial and temporal variations in daytime and night-time precipitation and differences in these variations between the dry and wet seasons were investigated based on a daily precipitation dataset comprising data from 73 meteorological stations on the Yunnan–Guizhou Plateau from 1960 to 2017. The results show that both daytime and night-time precipitation and the numbers of daytime and night-time precipitation days exhibited nonsignificant downward trends over a long timescale but fluctuated on an interdecadal scale. A complicated relationship was found between elevation and precipitation because the vertical precipitation gradient first increased with elevation and then decreased with elevation when the elevation exceeded 1500 m. Additionally, the average annual precipitation was clearly greater at night-time than in the daytime during the corresponding period. Furthermore, heavy and moderate rainfall contributed more than half of the total annual precipitation, and several rainfall days contributed much of the annual precipitation, particularly at night; night-time precipitation produced 33% of the average annual precipitation on only 5% of annual rainfall days. Additionally, we found significant correlation between El Niño–Southern Oscillation (ENSO) indexes and precipitation. These findings are valuable for coping with meteorological disasters associated with extreme precipitation under global climate change.

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Simulating Future Groundwater Recharge in Coastal and Inland Catchments

Cited by 38 publications

References 35 publications

Actual and Forecasted Vulnerability Assessment to Seawater Intrusion via GALDIT-SUSI in the Volturno River Mouth (Italy)

Actual and Forecasted Vulnerability Assessment to Seawater Intrusion via GALDIT-SUSI in the Volturno River Mouth (Italy)

Spatial analysis and mapping of the groundwater quality index for drinking and irrigation purpose in the alluvial aquifers of upper and middle Cheliff basin (north-west Algeria)

Spatiotemporal Variations in Daytime and Night-Time Precipitation on the Yunnan–Guizhou Plateau from 1960 to 2017

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