Fluctuation of Groundwater Levels and Recharge Patterns in Northern Ghana

Lutz, Alexandra; Minyila, Solomon; Saga, Bansaga; Diarra, Samuel; Apambire, Braimah; Thomas, James M.

doi:10.3390/cli3010001

Cited by 24 publications

(17 citation statements)

References 19 publications

(26 reference statements)

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“…So, the lower the location of soil in topohydrosequence, the smaller the impact of precipitation from the previous year on the mean annual water table depth. Lutz et al [5] and Liang et al [42] have reported that it is difficult to find a direct relationship between precipitation and the groundwater level because of the complex factors determining the groundwater depth. In our study low values of the regression coefficient were obtained taking into account the relationship between precipitation and water table depth only.…”

Section: Resultsmentioning

confidence: 99%

Temporal Variability of Water Table Depth in Topohydrosequence of Undulating Ground Moraine in Central Poland

Kozłowski¹,

Komisarek²,

Wiatrowska³

2018

Pol. J. Environ. Stud.

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Spatial and temporal variability in the water table depth is one of the most important features affecting plant cultivation, water management, and protection, as well as the formation of water and soil resources. Hence, much effort has been devoted to the issues of temporal as well as spatial water table variability. Many authors have emphasized a relationship between the water table and groundwater level fluctuations and climatological parameters such as precipitation and temperature [1-7]. Cai and Ofterdinger [2], examining the relationship between soil morphology and water table depth, have found a correlation between the average annual water table depth and annual precipitation. Shi et al. [8] emphasized that it is difficult to find a direct relation between precipitation and the groundwater level because of the complex factors determining groundwater depth. Statistically significant relationships between climatic parameters such as rainfall and temperature and groundwater level have also been found by Almedeij and Al-Ruwaih [9]. Cai and Ofterdinger [7] have noted a rapid connection between groundwater table depth and a precipitation

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Section: Resultsmentioning

confidence: 99%

Temporal Variability of Water Table Depth in Topohydrosequence of Undulating Ground Moraine in Central Poland

Kozłowski¹,

Komisarek²,

Wiatrowska³

2018

Pol. J. Environ. Stud.

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“…Researchers have assessed the availability of groundwater resources based on the estimation of groundwater recharge and draft with various techniques in different countries, i.e. Mexico (Scott and Shah, 2004), Turkey (Gundogdu and Guney, 2007;Aksever et al, 2015), USA (Harou and Lund, 2008), Ghana (Lutz et al, 2015), China (Wang and Zhao, 2015), India (Scott and Shah, 2004;Kumar and Remadevi, 2006;Bhuiyan et al, 2009;Reddy, 2012;Surinaidu et al, 2012;Lakshmamma et al, 2015) and Bangladesh (Jahan et al, 2010;Shahid et al, 2015). In this study, we also discussed the results of groundwater recharge and draft in Jodhpur district of Rajasthan, India along with the rainfall pattern.…”

Section: Resultsmentioning

confidence: 93%

GIS-based assessment of non-equilibrium pattern between groundwater recharge and irrigation draft in a semi-arid region of Rajasthan, India

2016

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Over-exploitation of groundwater for irrigation can result in drastic reduction in groundwater level in Jodhpur district of western Rajasthan, India. In this study, we used the long-term trend analysis of seasonal groundwater level data to predict the future groundwater scenario in 33 villages of Jodhpur district, assessed the impact of water harvesting structures on groundwater recharge and explored the non-equilibrium between groundwater recharge and irrigation draft in the study area. Analysis of groundwater level data from 26 observation wells in 33 villages in the pre-monsoon period showed that groundwater level decreased continuously at the rate of 2.07 m/a. With this declining rate, most of the tube wells (including the well with the maximum depth of 193 m) are predicted to become completely dry by 2050. Behavior of temporal groundwater level data in the study period (from 2004 to 2012) can be explained by different geospatial maps, prepared using ArcGIS software. Statistical analysis of the interpolated maps showed that the area with the maximum positive groundwater recharge occupied 63.14% of the total area during 2010-2011 and the area with the maximum irrigation draft accounted for 56.21% of the total area during 2011-2012. Higher groundwater recharge is attributed to the increase in rainfall and the better aquifer condition. Spatial distribution for the changes of average groundwater recharge and draft (2008-2009 and 2011-2012) showed that 68.50% recharge area was in positive change and 45.75% draft area was in negative change. It was observed that the area of the irrigation draft exceeded that of the groundwater recharge in most of the years. In spite of the construction of several shallow water harvesting structures in 2009-2010, sandstone aquifer zones showed meager impact on groundwater recharge. The best-fit line for the deviation between average groundwater fluctuation due to recharge and irrigation draft with time can be represented by the polynomial curve. Thus, over-exploitation of groundwater for agricultural crops has result in non-equilibrium between groundwater recharge and irrigation draft.

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“…However, few studies have been conducted to show how the groundwater level reacted to climate variability. The few studies that have addressed the issue [29][30][31] have faced a lack of data and have struggled to apply appropriate methods. These kinds of analyses require that further studies be conducted with other methods.…”

Section: Introductionmentioning

confidence: 99%

Climate Variability and Groundwater Response: A Case Study in Burkina Faso (West Africa)

Tirogo

Jost

Biaou

et al. 2016

Water

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West Africa experiences great climate variability, as shown by the long-lasting drought since the 1970s. The impacts of the drought on surface water resources are well documented but remain less studied regarding groundwater resources. The nexus between climate variability and groundwater level fluctuations is poorly documented in this area. The present study focuses on the large reserve of groundwater held by the Kou catchment, a tributary of Mouhoun river (formerly the Black Volta) in the southwest of Burkina Faso, in the Sudanian region. Analyses were undertaken using climatic time series , two rivers' hydrometric data , and 21 piezometers' time series (1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014) applying statistical trend (Mann-Kendall) and break (Pettitt) tests, correlation analysis, and principal component analysis. The analyses showed that rainfall in the area underwent a significant break in 1970 with an 11%-16% deficit between the period before the break and the period after the break that resulted in a deficit three times greater for both surface and base flows. This significant deficit in flow results from the combined effect of a decrease in rainfall and an increase in evapotranspiration. The response of the catchment to the slight increase in rainfall after 1990 was highly dependent on hydrological processes. At Samendéni, on the Mouhoun River, the flow increased with a slight delay as compared to rainfall, because of the slow response of the base flow. Whereas at Nasso on the Kou river, the flow steadily decreased. The analysis showed that the groundwater level responds to rainfall with a delay. Its response time to seasonal fluctuations ranges from 1 to 4 months and its response time to interannual variations exceeds the timescale of one year. This response is highly dependent on the local aquifer's physical characteristics, which could explain the spatial heterogeneity of the groundwater response.

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Fluctuation of Groundwater Levels and Recharge Patterns in Northern Ghana

Cited by 24 publications

References 19 publications

Temporal Variability of Water Table Depth in Topohydrosequence of Undulating Ground Moraine in Central Poland

Temporal Variability of Water Table Depth in Topohydrosequence of Undulating Ground Moraine in Central Poland

GIS-based assessment of non-equilibrium pattern between groundwater recharge and irrigation draft in a semi-arid region of Rajasthan, India

Climate Variability and Groundwater Response: A Case Study in Burkina Faso (West Africa)

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