The issue of climate change appears to be on the fore burner and it cannot be ascertained to occur without evidence. The study 0. Obot et al., (2011) studied the trends of rainfall in Abeokuta, Nigeria between 1981-2002. Article/chapter can be downloaded. �)� Annual Weather Averages Near Ibadan. ��~Y�R���������#�y�[�>nu��� Given this scenario, the 2011 rainfall in Nigeria is likely. Sorry, preview is currently unavailable. 0000001122 00000 n 0000003742 00000 n 0000003818 00000 n 0000012895 00000 n FSN-FM 0005 EFFECT OF RAINFALL PATTERN ON FISH PRODUCTION IN OGUN STATE, NIGERIA 1OLAOYE, O. J., 2AKINTAYO, I. This has taken a more pronounced dimension due to climate change. Annual rainfall varies in Nigeria. Hence, this study investigates change detection in rainfall pattern over each climatic zone of Nigeria. %PDF-1.3 %���� Given this scenario, the 2011 rainfall in Nigeria is likely. 0000011679 00000 n Article/chapter can be downloaded. Department of Geography, University of Ilorin, Ilorin, Nigeria ... View the article PDF and any associated supplements and figures for a period of 48 hours. 0000002047 00000 n climate change, many scholars have engaged in studying various element of climate to understand the present pattern and characteristic of climate. 31 0 obj <> endobj Rainfall data from twenty Nigeria stations, Sea Surface Temperature.tremendous crop failure whenever there are significant changes in rainfall pattern. S.A. 4 1,2&3. ,7�A�~������ٌ=�}�n��>�„yR�����г�0���0���h�ڛ�ye�g_�����KO.2ˈ�. I. Rainfall amount and rainfall frequency for five individual dry and five individual wet years were compared with the 1941–1987 averages for Nigeria. Keyword: Rainfall, Niger delta, Rainfall pattern Rainfall variation, Coefficient of Rainfall Variation I. Rainfall data from 28 stations for the period of 1970 – 2002 were collected from the Nigeria Meteorological Station, Lagos. A large amount of work has already been carried out by many countries on assessing impacts and vulnerabilities to climate change, as well as considering possible adaptation options. Current Journal of Applied Science and Technology, 2019, Rainfall Dynamics and Climate Change in Kano, Nigeria, Simulation of Meteorological Drought of Bankura District, West Bengal: Comparative Study between Exponential Smoothing and Machine Learning Procedures, Developing a regional drought climatology for the Czech Republic, Drought Analysis in Ceyhan Basin Using Standardized Precipitation Index, Comparative analyses of SPI and SPEI as drought assessment tools in Tigray Region, Northern Ethiopia. While there is a general decrease in rainfall in Nigeria, the coastal area is experiencing slight increase. This research aimed to examine the trend of rainfall in Akure using 50 years rainfall data. This study examines the length of the growing season in Nigeria using the daily rainfall data of Ikeja, Ondo, Ilorin, Kaduna and Kano. Department of Agricultural Technology, Oyo State College of Agriculture Igboora, Oyo State tnakinniran@lautech.edu.ng. <<92E48517542E1A49B505966816E622E0>]>> Statistical approach was deployed to determine the confidence levels, coefficients of kurtosis, skewness and coefficient of variations. Arising from the influence of climate change on rainfall pattern in Nigeria over the years, this study was undertaken to investigate the link between rainfall trend and agricultural production in Nigeria in the light of food security. While the vegetation map of Nigeria between 1973 and 1995 forms the basis of biodiversity change analysis. Rainfall anomaly patterns in dry and wet years over Nigeria. The riverine area of the Niger Delta is a coastal belt of swamps bordering the Atlantic ocean.The swamps are vegetated tidal flats formed by a reticulate pattern of interconnected meandering creeks and tributaries of the Niger River. 0000016621 00000 n In fact, there is a rainy season due to the African monsoon, which is progressively longer and more intense from north to south. The 1961–1970 and 1951–1960 decades were thereafter ranked as the wettest in southern and northern Nigeria during the 20th century, respectively. This belief widely held in some circles does not really follow this pattern due to other climatic factors. monthly rainfall and temperature in Northern region based on Bauchi station. Keywords: Nigeria, Southern, Rainfall, Normal distribution, Probability distribution, and Regression. characterized rain day patterns, with the highest rain day period in 1999 and lowest in 1987. 0000008944 00000 n ANALYSIS Of RAINfALL PATTERN NVIRONMENT AND fLOOD INCIDENCES IN wARRI METROPOLIS, NIGERIA Rhoda Olanrewaju 1, Buku Ekiotuasinghan , Godwin Akpan1* 1Department of … E}. The . STATE, NIGERIA (1990-2009) Akinniran, T. N. 1. 0000002997 00000 n You can download the paper by clicking the button above. 0000010138 00000 n x�b```�V�L~�g`��0pLr"�w�x�``�_Pڰzf)D��Dэ�S�$Ot�� Epochal patterns of Indian summer monsoon rainfall It is well known that Indian summer monsoon rainfall displays multi-decadal variations in which there is a clustering of wet or dry anomalies (Pant and Kumar, 1997). For example, Adefolalu (1986) examines trends in rainfall pattern using 70-year period (1911–1980) rainfall data from 28 meteorological stations. 0000006520 00000 n In Nigeria, studies on rainfall and their implication for flood frequency have been restricted to the southern parts of Nigeria, little or no attempt has been made in the literature to study the implication of recent changes in rainfall pattern on flood frequency in northern Nigeria despite increase frequency of floods in this region, and this is where this study derives its relevance. Article/chapter can not be redistributed. Here is the average rainfall. Rainfall in Nigeria is highly dynamic and variable on a temporal and spatial scale. Rainfall Pattern in Nigeria It is a common believe that all water on the earth comes from the rain and stored as surface water such as rivers, ponds, oasis, or underground water as spring and water table etc. Inland, it decreases to around 130 cm (50 inch) over most of central Nigeria and only 50 cm (20 inch) in the extreme north. On the Annual and Seasonal Pattern of Rainfall Fluctuations in Sub-Saharan West Africa. 54 0 obj<>stream 0000010416 00000 n spending (Federal Government of Nigeria, 2013). This present study analyzes the rainfall trends and temperature patterns in the zone in order to determine the current climatic trends. The rain-day series in Nigeria have been examined for periodicities, fluctuations and trends for four regions arranged from south to north (the Coastal, Guinea-Savanna, Midland and Sahelian zones) based on data collected for the period 1919–1985. The importance of the knowledge of rainfall pattern has necessitated many researchers to carryout studies on the subject. Averages are for Ibadan Airport, which is 4 miles from Ibadan. Nigeria is a country in West Africa. 31 24 This paper examined rainfall pattern and its variability in northeastern Nigeria and its impacts on access to water supply. The Niger Delta is located in the southern part of Nigeria. To examine the epochs of above and below normal rainfall, 31-year running This has taken a more pronounced dimension due to climate change. Average rainfall along the coast varies from about 180 cm (70 in) in the west to about 430 cm (170 inch) in certain parts of the east. He has found that the date of start of the growing season is occurred The present study attempts to examine recent changes in rainfall pattern and its implication on flood frequency in a seasonally flooded town of Makurdi, northern Nigeria. This drop in rain days might have a negative toll on yam (fig.1), maize (fig.2) and cassava (fig.3) as indicated by sharp fall in output between 1985 and 1987. Article/chapter can not be redistributed. In the central area, where the rainy season is longer, the sunshine hours decrease for a longer period. Nigerian agriculture is mainly rain-fed and basically dependent on the vagaries of weather especially rainfall. Nigeria shares land borders with the Republic of Benin in the west, Chad and Cameroon in the east, and Niger in the north. It also shares a border with the self-declared, but internationally unrecognized state of Ambazonia in the southeast. The study examines rainfall characteristics in Warri metropolis for the past 30 years (1986-2015). the changing rainfall pattern the changing rainfall pattern during the main growing season (March, April and May) and the associated effects on subsistence agriculture in Laikipia east District of Kenya. The variability of rainfall and the pattern of extreme high or low precipitation are very important for agriculture as well as the economy of the state. Climate data and weather averages in Port Harcourt. Academia.edu no longer supports Internet Explorer. The variability of rainfall and the pattern of extreme high or low precipitation are very important for agriculture as well as the economy of the state. An Assesment of the Pattern of Rainfall Fluctuations between 1922 and 1985 in Nigeria. He employed univariate Box-Jenkins method to analyze rainfall in the region and found that SARIMA model is suitable for forecasting future value of monthly rainfall and temperature data and used this model to forecast 12-month rainfall pattern in the study area. Fig.1.1 Nigeria Population Structure, 2016 2 Fig.1.2 Nigeria Demography – by State and Sex. rainfall years are in both the modelling and the validation periods. Although many findings considering Rainfall is the most important natural factor that determines the agricultural production in Nigeria, particularly in the South western part of Nigeria. Check out Abstract. MATERIALS AND METHODS Akure is the capital of Ondo State (Figure 4), Nigeria and the major dominating town of Akure South Local Government. Its coast lies on the Gulf of Guinea in the south and it borders Lake Chad to the northeast. ABSTRACT - Analyses of radiation and rainfall pattern was designed to study the relationship between rainfall and radiation in Kano {latitude 12. Nigeria are farmers and rainfall is the major source of water for growing of crops. 3, Adeyemo. 0000007715 00000 n In addition, daily rainfall amounts for each of the chosen years were collected in order to determine the onset and cessation dates of rainfall, the dates of first precipitation (of 1.0 mm and 10.0 mm), and the monthly as well as the annual rainfall … In Nigeria, the climate is tropical, semi-arid in the far north, and progressively rainier as you move southward. Monthly Rainfall in Major Cities of Nigeria OlaOluwa S. Yaya1, Luis A. Gil-Alana2 and Abayomi A. Akomolafe3 Several features may be present in rainfall data, and sophisticated time series procedures are needed for the analysis. The hot Harmattan wind from the Sahara sweeps across the northeastern areas which. PhD Thesis, Unpublished. endstream endobj 32 0 obj<> endobj 33 0 obj<> endobj 34 0 obj<>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 35 0 obj<> endobj 36 0 obj<> endobj 37 0 obj<> endobj 38 0 obj<> endobj 39 0 obj<> endobj 40 0 obj<> endobj 41 0 obj<> endobj 42 0 obj<>stream Rainfall is the most important natural factor that determines the agricultural production in Nigeria, particularly in the South Eastern part of Nigeria. 0000000776 00000 n O. COLE Agricultural Media Resources and Extension Centre University of Agriculture, Abeokuta, Ogun State, Nigeria1 Nigeria Institute for Oceanography and Marine Research Victoria Inland, Lagos State, Nigeria 2 The country’s north-south extent is about 1 050 km and its maximum east-west extent is about The Nigeria. Unlimited viewing of the article/chapter PDF and any associated supplements and figures. Nigeria and it is the grain belt of the country populated by small scale subsistence farmers and nomadic livestock herders. Internatinal Journal of Climatology, 10: 810-848. It decreases from the south to the north, the rainfall comes late and not evenly spread across the rainy season and consequently has adverse effect on agricultural activities (Iloeje, 1981). Data was collected from the Nigerian Meteorological Agency, Oshodi, Lagos state, Nigeria. It provides suitable conditions for many types of ecosystems, as well as water for hydroelectric power plants and crop irrigation. The rain-day series in Nigeria have been examined for periodicities, fluctuations and trends for four regions arranged from south to north (the Coastal, Guinea-Savanna, Midland and Sahelian zones) based on data collected for the period 1919–1985. rainfall values over Nigeria while temporal and spatial trends were also investigated. Drought or dry spells at the beginning or end of the season had a constant reoccurrence decimal since the beginning of the 20th century. 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