Numerical Simulation of Spring Hydrograph Recession Curves for East Yorkshire Chalk Aquifer, UK

Azeez, Nozad Hasan; West, L. J.; Bottrell, Simon H.

doi:10.5038/9780991000951.1029

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…In this stage, the recession behavior is expected to provide information on some intrinsic aquifer features (e.g. Azeez et al 2015;Tague and Grant 2004). One of the first studies about base-flow recession hydrographs is that of Boussinesq (1904), who proposed a nonlinear quadratic behavior of aquifer discharge during recession.…”

Section: Analysis Of Spring Base-flow Recession Using the Maillet Modelmentioning

confidence: 99%

Estimation of recharge in mountain hard-rock aquifers based on discrete spring discharge monitoring during base-flow recession

Segadelli¹,

Filippini

Anna

et al. 2021

Hydrogeol J

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Estimation of aquifer recharge is key to effective groundwater management and protection. In mountain hard-rock aquifers, the average annual discharge of a spring generally reflects the vertical aquifer recharge over the spring catchment. However, the determination of average annual spring discharge requires expensive and challenging field monitoring. A power-law correlation was previously reported in the literature that would allow quantification of the average annual spring discharge starting from only a few discharge measurements in the low-flow season, in a dry summer climate. The correlation is based upon the Maillet model and was previously derived by a 10-year monitoring program of discharge from springs and streams in hard-rock aquifers composed of siliciclastic and calcareous turbidites that did not have well defined hydrogeologic boundaries. In this research, the same correlation was applied to two ophiolitic (peridotitic) hard-rock aquifers in the Northern Apennines (Northern Italy) with well-defined hydrogeologic boundaries and base-outflow springs. The correlation provided a reliable estimate of the average annual spring discharge thus confirming its effectiveness regardless of bedrock lithology. In the two aquifers studied, the measurable annual outputs (i.e. sum of average annual spring discharges) could be assumed equal to the annual inputs (i.e. vertical recharge) based on the clear-cut aquifer boundaries and a quick groundwater circulation inferable from spring water parameters. Thus, in such setting, the aforementioned correlation also provided an estimate of the annual aquifer recharge allowing the assessment of coefficients of infiltration (i.e. ratio between aquifer recharge and total precipitation) ranging between 10 and 20%.

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Section: Analysis Of Spring Base-flow Recession Using the Maillet Modelmentioning

confidence: 99%

Estimation of recharge in mountain hard-rock aquifers based on discrete spring discharge monitoring during base-flow recession

Segadelli¹,

Filippini

Anna

et al. 2021

Hydrogeol J

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“…In recent times, environments with different hydrogeologic characteristics have been modelled in laboratory conditions to draw and interpret discharge curves. According to these researches, the recession curve of a spring is related to geologic and hydrologic factors like precipitation in the region, and the geology of the recharge area, along with hydrogeologic characteristics of the aquifer (e.g., porosity, permeability, transmissivity) and situations like pumping from groundwater (Kovacs and Perrochet, 2008;Liu and Li, 2012;Farlin and Maloszewski, 2013;Azeez et al, 2015).…”

Section: Contentsmentioning

confidence: 99%

The Hydrogeological Investigation of Plajköy Spring (Elaziğ)

Okan¹,

Güven²,

Çetindağ³

2018

Bulletin of the Mineral Research and Exploration

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Plajköy spring discharges at the close locations to the SE shore of Lake Hazar. Lake Hazar is a tectonic Lake in Elazığ city. Plajköy spring is a fault spring that is mainly recharging from the volcanites, dikes and blocky volcanosedimentary units of Middle Eocene Maden Complex. These units have gained secondary permeability and porosity related with the active tectonics that is effective in the studied area. The present catchment system of the spring could not collect the springs and leaks discharging from different points around the system. The discharge of the catchment is measured by specifi c volume method while the other springs' and leaks' is measured by using triangular weir. Before the discharge measurement of the leaks and the springs, they have been directed to a channel. The discharge of the present catchment system and the leaks have measured twice in a month during one year period beginning from October of 2012 to November of 2013. The discharge coeffi cient of the spring is calculated 1.33*10 -3 day -1 . Discharge coeffi cient of the spring depends on the geometry and intensity of the active fracture systems in the region. Calculated discharge coeffi cient indicates that the spring discharge is related with the narrow fi ssures, fractures and pores. The total volume of discharged groundwater in the real regime of the Plajköy spring is calculated as 52* 10 3 m 3 during the period from 31 st of March, 2013 to the 13 rd of October, 2013 by Maillet formula. The spring water is Ca-Mg-HCO 3 type water related with the chemical analyses. The chemical and microbiological analyses of the spring water are correlated with the drinking water standarts of Turkey TS 266 (TSE, 2005) and World Health Organization (2004), and it is seen that the spring water is suitable for drinking. The Plajköy spring will be used more effi ciently without exposed to pollution by the new catchment plan and protection zone map that are consequently proposed in the present study.

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“…Tampa, FL (USA) September 2020 al., 1997). Due to the high porosity of the rock matrix, the Chalk is normally considered as a dual-porosity or double-permeability aquifer (Butler et al, 2014;Azeez et al, 2015;Zghibi et al, 2016;Descamps et al, 2017;Hakoun et al, 2017). Storage is predominantly within the matrix.…”

Section: Introductionmentioning

confidence: 99%

Stratigraphical influence on chalk cave development in Upper Normandy, France: implications for chalk hydrogeology

Ballesteros¹,

Farrant²,

Nehmé³

et al. 2020

IJS

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Classically, the Upper Cretaceous Chalk Group aquifer of northwest Europe is conceptualized as a homogenous dual-porosity aquifer, with high porosity related to its fine-grained porous matrix, and intermediate hydraulic conductivity associated with fractures. However, an increasing number of hydrological studies visualize the Chalk as a heterogeneous karst aquifer due to the localised presence of dissolutionally enlarged conduits. Field investigation suggests that cave development is guided by distinct stratigraphical and tectonic discontinuities within the rock mass. Identifying which potential inception horizons within the Chalk aquifer are favoured, and why, is important for developing future robust conceptual models of groundwater behaviour. This study focusses on the Chalk of the Upper Normandy region in France where karstic conduits are common and are linked to major sources of groundwater for public water supply. We analyse the geometry and geomorphology of six chalk caves exposed in the Seine Valley with an aggregated length of over 5.7 km, along with other caves in southern England, and identify the key inception horizons associated with their development. The data shows that prominent Turonian, Coniacian and Santonian hardgrounds have influenced the development of 68% of the studied caves length, with sheet-flints and marl seams also playing a prominent role. Caves developed on or between hardgrounds typically display a complex interlinked anastomotic passage network, whereas passages subjected to paragenetic conditions caused by a high sediment flux tend to be concentrated into fewer, larger conduits. The new evidence from Normandy and Southern England demonstrates the role of lithostratigraphy, and in particular stratigraphical discontinuities on conduit development. The data reinforces the idea that the Chalk aquifer should be viewed as a heterogeneous triple porosity karstic aquifer, in which conduit development is influenced by key stratigraphical discontinuities. This improved conceptual model can be used to develop better groundwater flow models and improved catchment delineation.

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Numerical Simulation of Spring Hydrograph Recession Curves for East Yorkshire Chalk Aquifer, UK

Cited by 6 publications

References 12 publications

Estimation of recharge in mountain hard-rock aquifers based on discrete spring discharge monitoring during base-flow recession

Estimation of recharge in mountain hard-rock aquifers based on discrete spring discharge monitoring during base-flow recession

The Hydrogeological Investigation of Plajköy Spring (Elaziğ)

Stratigraphical influence on chalk cave development in Upper Normandy, France: implications for chalk hydrogeology

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