Assessment of groundwater recharge in a semi-arid groundwater system using water balance equation, southern Iran

Mohammadi, Zargham; Salimi, Mostafa; Faghih, Ali

doi:10.1016/j.jafrearsci.2014.02.006

Cited by 26 publications

(13 citation statements)

References 29 publications

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“…The groundwater samples were collected from wells and springs for analysing 3 H and 14 C to determine groundwater age. Tritium content was determined by electrolytic enrichment and liquid scintillation technique.…”

Section: Sampling and Analysismentioning

confidence: 99%

“…The measurement accuracy was 0.3 Tritium Unite (TU). Activity of 14 C was analysed by accelerator mass spectrometry and standard deviation of the analytical results ranged between 0.7 and 1.0 pMC (percentage of modern carbon). Water table of the sampling wells was also measured during the period.…”

Section: Sampling and Analysismentioning

confidence: 99%

“…The trial and error method, particle tracking and isotopic dating methods were combined to calibrate the model. The study not only provides insight into the calibration of twodimensional variably saturated groundwater flow model, but also provides effective methodologies for preliminary estimation of regional groundwater circulation and flow systems with limited datasets 14 .…”

mentioning

confidence: 99%

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Calibration of Two-Dimensional Variably Saturated Numerical Model for Groundwater Flow in Arid Inland Basin, China

Gu¹,

Jing-li²,

Cui³

et al. 2017

Current Science

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Section: Sampling and Analysismentioning

confidence: 99%

Section: Sampling and Analysismentioning

confidence: 99%

mentioning

confidence: 99%

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Calibration of Two-Dimensional Variably Saturated Numerical Model for Groundwater Flow in Arid Inland Basin, China

Gu¹,

Jing-li²,

Cui³

et al. 2017

Current Science

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“…Dividing water year into wet and dry periods and using composition of groundwater balance and water table fluctuations to determine water balance and specific yield are a precise and proper method (Marechal et al 2006). Water balance of an aquifer in general could be calculated by the following equation (Mohammadi et al 2014):…”

Section: Aquifer Groundwater Balancementioning

confidence: 99%

The groundwater balance in alluvial plain aquifer at Dehgolan, Kurdistan, Iran

Amini

Homayounfar

2016

Appl Water Sci

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In this research, groundwater balance in Dehgolan plain, Kurdistan, Iran was carried out to assess changes in the level and volume of groundwater and water resources management. For this purpose, water resources supplies and consumption data, amount of charging and discharge and water level data recorded from wells and piezometers from 2010 to 2011 water year were gathered and analyzed. Rainfall and water losses of the study area were determined and required maps, including Iso-maps of the temperature, the evaporation, the groundwater level and the aquifer conductivity, were drawn by GIS software. Using the information and drawn maps and the equality of inputs and outputs data, the aquifer water balance was calculated. The results of balance equations showed that the balance is negative indicated a notably decline of groundwater equal to 15.029 million cubic meter (MCM). Such rate of decline is due to the large number of agricultural wells in the region, without considering the hydrological potential of the aquifer.

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“…Therefore, determining the levels of recharge and discharge of groundwater, as well as other effective factors on groundwater balance play a significant role in groundwater resources management, especially in semiarid areas such as Iran (Jafari et Raneesh and Thampi (2013) implemented the WBE in applied groundwater recharge models to quantify changes in groundwater level and water balance components. In a key study undertaken in southern Iran, Mohammadi et al (2014) assessed groundwater recharge in a semi-arid system by using WBE to investigate the role of the Burazjan fault. They concluded that WBE constitutes an appropriate and sufficient approach to quantify known and specific unknown water balance components.…”

Section: Introductionmentioning

confidence: 99%

Quantifying the Influence of Sinkholes on Water Balance in Iran’s Golgir Alluvial Plain

Tourk-Qashqainejad¹

2017

Appl Ecol Env Res

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Abstract. Southwestern Iran's Golgir plain lies on chalky bedrock made up of Tertiary gypsum surrounded and covered by thin Quaternary deposits. Since the onset of the new millennium, this region and its farmland has been prone to land depression and other instability phenomena linked to gypsum dissolution. A simple water balance over the period of 2005 to 2012 was employed to assess the role of sinkholes in these phenomena. Geological and geophysical features as well as initial water balance calculations confirmed the presence of sinkholes and their influence in the study area. A significant discrepancy (2.55×10 6 m 3 ) was observed between annual estimates of water inputs and discharge from the region, likely attributable to errors in identifying and quantifying output components. A bedrock map derived from geophysical investigations and the geological characterization of the chalky bedrock showed that, in comparison to the local groundwater table, there was a roughly 40 m drawdown towards the location of sinkholes. Groundwater inflow towards the aquifer was revised so as to include an identified sinkhole output component in the water balance equation, resulting in a much greater accuracy in the annual water balance estimates. Estimated annual recharge volumes ranged from 4.39×10 6 to 7.15×10 6 m 3 , with a mean of 5.64×10 6 m 3 . The water balance equation was shown to constitute a simple, cost-effective, and reliable approach to the recognition and evaluation of sinkholes in areas under similar conditions.

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Assessment of groundwater recharge in a semi-arid groundwater system using water balance equation, southern Iran

Cited by 26 publications

References 29 publications

Calibration of Two-Dimensional Variably Saturated Numerical Model for Groundwater Flow in Arid Inland Basin, China

Calibration of Two-Dimensional Variably Saturated Numerical Model for Groundwater Flow in Arid Inland Basin, China

The groundwater balance in alluvial plain aquifer at Dehgolan, Kurdistan, Iran

Quantifying the Influence of Sinkholes on Water Balance in Iran’s Golgir Alluvial Plain

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