Characteristics of Rainfall Variations in Kaduna State, Nigeria

Yunusa, B. K.; Yusuf, Syifa Adilah; Zaharaddeen, Isa; Abdussalam, Auwal F.

doi:10.9734/ajaar/2017/36936

Cited by 8 publications

(3 citation statements)

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“…This means that the area receives rainfall for at least six months annually. Using the rainfall data between 1950 and 2016, the pattern of mean annual rainfall was found to be latitudinal and ranging between 935 mm in the north to 1374 mm in the south, which is similar to that of Ijigah and Akinyemi (2015), Yunusa et al (2017).…”

Section: Materials and Methods The Study Areasupporting

confidence: 69%

Multi Criteria Analysis for Assessment of Vulnerable Areas to Flood Hazard in the Upper River Kaduna Basin, North-Central Nigeria

Tukur¹,

Mayomi²,

Ezra³

2020

JASD

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The study was conducted on multi criteria analysis for assessment of vulnerable areas to flood hazard in the upper river Kaduna basin, north-central Nigeria. Six (6) criteria; topography, slope, landuse and landcover, stream density, soil types and mean annual rainfall of the area were integrated for assessment of vulnerability of flood hazards in the basin. Data on each of the six (6) factors were acquired, processed, weighted (using Analytical Hierarchy Process (AHP)) and overlain using weighted sum module of ArcGIS 10.5 software. The output map was classified into four (4) classes of vulnerability, that is, highly vulnerable, vulnerable, marginally vulnerable, and safe zones. The result revealed that parts of Bauchi, Kano, Katsina and Plateau States that were within the basin were not much vulnerable to flood hazards. However, close to half of the land area (48.43%) in Kaduna State were found to fall in either highly vulnerable or vulnerable zones, while 88.9% of the land area of Niger State within the Basin was also either highly vulnerable or vulnerable. Kaduna metropolis (comprising of the entire Kaduna North and South LGAs as well as parts of Igabi and Chikun LGAs), which is the most populated town within the entire basin was found to be more vulnerable to floods than any of the other LGAs in the State. In Kaduna South, 86.87% were highly vulnerable, almost half (44.88) of the land area of Kaduna North were also highly vulnerable. It was concluded that rainfall, topography urbanization and land-use were the main factors responsible for flood hazards. Proper land-use management and monitoring as well as sustainable utilization of the entire River Kaduna basin were recommended to minimize the constant occurrence and effects of floods in the area.

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Section: Materials and Methods The Study Areasupporting

confidence: 69%

Multi Criteria Analysis for Assessment of Vulnerable Areas to Flood Hazard in the Upper River Kaduna Basin, North-Central Nigeria

Tukur¹,

Mayomi²,

Ezra³

2020

JASD

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“…Kaduna Central District comprises Igabi, Kaduna North, Kaduna South, Chikun, Giwa, Birnin Gwari and Kajuru Local Government Areas, and stretches over latitude 10.32 o N -10.66 o N and longitude 6.54 o E -7.68 o E. The map of Kaduna State indicating weather stations, including the study area is shown in Figure 1 [13]. Generally, the climate of the study area is characterized by a clear distinction between dry and rainy seasons.…”

Section: Methodology 21 Description Of the Study Areamentioning

confidence: 99%

Estimation and comparison of reference evapotranspiration within Kaduna Central District, Nigeria, using four different methods

Onwuegbunam¹,

Onwuegbunam²,

Dare³

2020

Nig. J. Tech.

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The reference evapotranspiration (ETo) within Kaduna Central District, Nigeria was estimated from a 30-year climatological data using four different methods namely, Penman-Monteith (PM), Blaney Criddle (BC), Hargreaves (HGRV) and Piche evaporimeter (PiEv) (atmometer) methods. The study shows that the highest ETo values obtained from PM, BC and PiEv were 6.43 mm/day, 7.58 mm/day and 8.63 mm/day, respectively, and these occurred in February, except for HGRV which estimated its highest ETo (3.73 mm/day) in March. The lowest ETo values were obtained in August for all the methods. By means of the confidence index (c), agreement or concordance index (d) and correlation coefficients (r) statistics the BC, HGRV and PiEv ETo values were correlated with that of PM, as the standard. Results showed that BC, HGRV and PiEv gave c-values of 0.88, 0.48 and 0.67, respectively. Hence, BC-PM, HGRV-PM and PiEv-PM correlations were adjudged as excellent, bad and good, respectively, on the basis of criteria for interpretation of the performance of methods of ETo estimations. Blaney-Criddle reference evapotranspiration method gave the best estimate in comparison to the Penman-Monteith standard in the study area. Hence, the Blaney-Criddle ETo can be calibrated with the Penman-Monteith ETo and used effectively within the Kaduna Central District conditions for irrigation water management decisions. Keywords: Estimation and comparison, Reference evapotranspiration, Methods, Kaduna Central District, Nigeria.

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“…One of the most significant climatic variations in the African Sahel since the late 1960s has been the persistent decline in rainfall. The Sahel is characterized by strong climatic variations and an irregular rainfall that ranges between 200 mm and 600 mm with coefficients of variation ranging from 15 to 30% (Yunusa et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Climate Variation Assessment Based on Rainfall and Temperature in Ilorin Kwara State Nigeria

Olubanjo¹

2019

Appl. Res. J. Environ. Eng.

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In recent times and across the globe, the concept of climate has gained much relevance because of its dynamic and complex nature and the significant influence it has on various aspects of the environment, including the increasing threat of global climate change. This study focuses on the assessment of climatic variation in Ilorin based on the variations in rainfall and temperature within the period 1980-2015. Time Series Analysis was used to determine the trend of rainfall and temperature within the period 1980-2015. The 5-Year Moving Average was used to smoothen the time series and to eliminate unwanted fluctuations. Linear Regression was used to estimate the value of variable Y (total rainfall or average minimum temperature), corresponding to a given value of variable X (time), while MAKESEN software was used to determine the temporal trend of rainfall indices within the study period. Furthermore, the study focused on the spatial variations of total rainfall and average minimum temperature in the study area. The result revealed that there is downward trend of 0.814 mm per year in the annual mean rainfall and also there is an upward trend of 0.029 per year in average annual minimum temperature and total annual maximum temperature has an upward trend of 0.01 mm per year. Thus, the rainfall is decreasing and temperature tends to increase. Key word: Climate variability, Rainfall, Temperature, Period, Temporal trend, Kwara state

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Characteristics of Rainfall Variations in Kaduna State, Nigeria

Cited by 8 publications

References 0 publications

Multi Criteria Analysis for Assessment of Vulnerable Areas to Flood Hazard in the Upper River Kaduna Basin, North-Central Nigeria

Multi Criteria Analysis for Assessment of Vulnerable Areas to Flood Hazard in the Upper River Kaduna Basin, North-Central Nigeria

Estimation and comparison of reference evapotranspiration within Kaduna Central District, Nigeria, using four different methods

Climate Variation Assessment Based on Rainfall and Temperature in Ilorin Kwara State Nigeria

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