Climate Change Impact on Sub-Surface Hydrology of Kaduna River Catchment

Garba, Haruna; Ismail, Abdul Razak; Batagarawa, Rabia Lawal; Ahmed, Saminu; Ibrahim, A.; Bayang, Faustinus

doi:10.4236/ojmh.2013.33015

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…Globally, the anticipated changes in runoff varied regionally, with water availability decreasing in some locations but increasing in others [KUNDZEWICZ et al 2008;SCHEWE et al 2014]. Studies in Kaduna River basin indicate an increase in the magnitude and frequency of flooding events and increase in runoff potential of aquifers [HARUNA et al 2013]. Nonetheless, few attempts have been made to deal with the changing climate and their large-scale impacts on runoff.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the impact of climate change on the freshwater availability of Kaduna River basin, Nigeria

Okafor

Ogbu

2018

Journal of Water and Land Development

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Changes in runoff trends have caused severe water shortages and ecological problems in agriculture and human well-being in Nigeria. Understanding the long-term (inter-annual to decadal) variations of water availability in river basins is paramount for water resources management and climate change adaptation. Climate change in Northern Nigeria could lead to change of the hydrological cycle and water availability. Moreover, the linkage between climatic changes and streamflow fluctuations is poorly documented in this area. Therefore, this study examined temporal trends in rainfall, temperature and runoff records of Kaduna River basin. Using appropriate statistical tools and participatory survey, trends in streamflow and their linkages with the climate indices were explored to determine their amplifying impacts on water availability and impacts on livelihoods downstream the basin. Analysis indicate variable rainfall trend with significant wet and dry periods. Unlike rainfall, temperature showed annual and seasonal scale statistically increasing trend. Runoff exhibit increasing tendency but only statistically significant on annual scale as investigated with Mann-Kendall trend test. Sen's estimator values stood in agreement with Mann-Kendall test for all variables. Kendall tau and partial correlation results revealed the influence of climatic variables on runoff. Based on the survey, some of the hydrological implications and current water stress conditions of these fluctuations for the downstream inhabitants were itemized. With increasing risk of climate change and demand for water, we therefore recommend developing adaptive measures in seasonal regime of water availability and future work on modelling of the diverse hydrological characteristics of the entire basin.

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Section: Introductionmentioning

confidence: 99%

Assessment of the impact of climate change on the freshwater availability of Kaduna River basin, Nigeria

Okafor

Ogbu

2018

Journal of Water and Land Development

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“…The monthly, seasonal, annual and decadal trends of seven hydro meteorological variables were analysed by [11] for stations in Akwa Ibom State Nigeria, at the 5% statistical significance level, the non-parametric M-K and Sens Slope estimator were used to detect if there was a positive or negative trends and the magnitude of the trends, revealed the consistency of performance in detecting the trends of the hydro meteorological values. The M-K test is recommended by the World Meteorological Organization for detecting trends in a set of hydrological data [12,13]. It is also known for it strong consistency and appropriate to time series data [13].…”

Section: Introductionmentioning

confidence: 99%

Effect of Slope and Runoff Trends on the Hydrological Response of River Kaduna

Garba,

Abubakar

2023

AJERD

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A monotonic upward/downward trends of hydrological variables was used to test the null hypothesis that slope and runoff trends have a significant impact on land use and land. The Mann-Kendall (M-K) and P- values statistical measurement were used to validate the null hypothesis against the observed data Relationships between gradients and climatic parameters for the hydrological response of Kaduna River was developed using geographic information tools (GIS). GIS maps of runoff, Digital Elevation Model (DEM), Land Use and Land were established Mann-Kendall (M-K) trend analysis was used to identify trends in climate parameters. The data used are precipitation, evapotranspiration, runoff, and temperature over a 30-year period from 1992 to 2021 obtained from the Kaduna State Water Authority and the Nigerian Meteorological Service. Results of the trend analysis of annual runoff and rainfall indicates the same M-K and P-values of 0.094 and 0.475which are all greeter than 0.05 significant level but the magnitude of Seen slope for rainfall and runoff are 5.130 and 0.016 demonstrating that rainfall is the major driving variable foe runoff generation. The annual evapotranspiration has M-K and P-values of 0.126 and 0.335 while the values for average annual temperature are 0.138 and 0.292. Land use in parts of the study area exhibits unstable ecosystems and vulnerable hilly terrain, suggesting that seasonal runoff and corresponding hydrological responses of rivers are dominated by changes in precipitation.

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“…Especially during recent years, the dynamic evolution of river flows has become a very interesting area since it is influenced by many changes in the climate system. Significant research has been devoted to this purpose, including methods such as the generation of stochastic precipitation models under current and changed climate conditions [1], parameter estimation and uncertainty analysis [2], hydrological models that simulate the impact of climate change on the sub-surface of a river [3] and statistical methods [4][5][6]. Moreover, there are methods developed by solving stochastic differential equations describing the river dynamics in state space form [7], studies based on fractal geometry detecting correlations [8] or using Fourier spectral analysis of daily inflows, outflows and water levels in river dam reservoirs [9].…”

Section: Introductionmentioning

confidence: 99%

Non-Linear Analysis of River System Dynamics Using Recurrence Quantification Analysis

et al. 2022

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Understanding the underlying processes and extracting detailed characteristics of rivers is critical and has not yet been fully developed. The purpose of this study was to examine the performance of non-linear time series methods on environmental data. Specifically, we performed an analysis of water level measurements, extracted from sensors, located on specified stations along the Nestos River (Greece), with Recurrence Plots (RP) and Recurrence Quantification Analysis (RQA) methods. A more detailed inspection with the sliding windows (epoqs) method was applied on the Recurrence Rate, Average Diagonal Line and Trapping Time parameters, with results showing phase transitions providing useful information about the dynamics of the system. The suggested method seems to be promising for the detection of the dynamical transitions that can characterize distinct time windows of the time series and reveals information about the changes in state within the whole time series. The results will be useful for designing the energy policy investments of producers and also will be helpful for dam management assessment as well as government energy policy.

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Climate Change Impact on Sub-Surface Hydrology of Kaduna River Catchment

Cited by 7 publications

References 8 publications

Assessment of the impact of climate change on the freshwater availability of Kaduna River basin, Nigeria

Assessment of the impact of climate change on the freshwater availability of Kaduna River basin, Nigeria

Effect of Slope and Runoff Trends on the Hydrological Response of River Kaduna

Non-Linear Analysis of River System Dynamics Using Recurrence Quantification Analysis

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