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. Article/chapter can be downloaded. 0000003487 00000 n ... sources. View the article PDF and any associated supplements and figures for a period of 48 hours. The explosion of data in the information age has provided an opportunity to explore the possibility of characterizing the climate patterns using data mining techniques. Inland, it decreases to around 130 cm (50 inch) over most of central Nigeria and only 50 cm (20 inch) in the extreme north. This has taken a more pronounced dimension due to climate change. In fact, there is a rainy season due to the African monsoon, which is progressively longer and more intense from north to south. In this work, the non-parametric Mann-Kendall test is used to test for significant trend in rainfall in Nigeria through The paper is designed to study the rainfall patterns and its implications in Nigeria. 0000010416 00000 n Rainfall data from twenty Nigeria stations, Sea Surface Temperature.tremendous crop failure whenever there are significant changes in rainfall pattern. This seasonal variation of rainfall is the focus of this research. awholehaswitnessed11,640v iolentdeathsthusfarinmid;2014,morethaninall! 0000011679 00000 n 0000010138 00000 n action on climate change, is helping adaptation efforts in developing countries. This paper is premised on the hypothesis that the amount of rainfall in Nigeria decreases with increasing distance from the coastal areas to the north semi arid lands. monthly rainfall and temperature in Northern region based on Bauchi station. The hot Harmattan wind from the Sahara sweeps across the northeastern areas which. 0000007715 00000 n Annual rainfall varies in Nigeria. Given this scenario, the 2011 rainfall in Nigeria is likely. 0000000016 00000 n 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. The Niger Delta is located in the southern part of Nigeria. 2. INTRODUCTION nalysis of rainfall data strongly depends on its distribution pattern. Abstract. <<92E48517542E1A49B505966816E622E0>]>> climate change, many scholars have engaged in studying various element of climate to understand the present pattern and characteristic of climate. %%EOF Rainfall is the most important natural factor that determines the agricultural production in Nigeria, particularly in the South Eastern part of Nigeria. Nigeria and it is the grain belt of the country populated by small scale subsistence farmers and nomadic livestock herders. Annual Weather Averages in Port Harcourt. The paper is designed to study the rainfall patterns and its implications in Nigeria. Rainfall data from twenty Nigeria stations, Sea Surface Temperature.tremendous crop failure whenever there are significant changes in rainfall pattern. 0. For example, Adefolalu (1986) examines trends in rainfall pattern using 70-year period (1911–1980) rainfall data from 28 meteorological stations. You can download the paper by clicking the button above. �h�Yd) �d�```qk 25@���P4��\ F�[@Z����*1�p rainfall values over Nigeria while temporal and spatial trends were also investigated. 3, Adeyemo. N and longitude 8. Rainfall data from 28 stations for the period of 1970 – 2002 were collected from the Nigeria Meteorological Station, Lagos. Nigerian agriculture is mainly rain-fed and basically dependent on the vagaries of weather especially rainfall. Deficiency in total annual precipitation is a problem in parts of the country, particularly in the northern parts. Checkout. Article can not be downloaded. In this paper, Standard Precipitation Index (SPI) and Coefficient of Variability statistical tools The study examines rainfall characteristics in Warri metropolis for the past 30 years (1986-2015). x�b```�V�L~�g`��0pLr"�w�x�``�_Pڰzf)D��Dэ�S�$Ot�� 0000011645 00000 n Lower rainfall in the north, for example, reduces the availability of trees and biomass for 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. Enter the email address you signed up with and we'll email you a reset link. 0000016621 00000 n In northern Nigeria, the peak monthly mean rainfall amount of 91 mm was observed in August and rainfall amount was very low in January (0.0 mm), February (0.0 mm), March (0.0 mm) and December (0.0 mm). In their paper entitled „Analysis of It is one of the world's largest arcuate fan-shaped river deltas.. The study H�tVMs�6��W�v,� �ӓ�8��ݱ�S���$44������- Jr;�EJX�}x���w7��m���Ż�VL�z}!��K��E��狘m�_7�q��?E��2qvwU~/�Xf����L��oM�����yϮWϑ�"�:����?�_Β�*izN��2��i���,e��Oa9f+) 0. The paper is designed to study the rainfall patterns and its implications in Nigeria. While the vegetation map of Nigeria between 1973 and 1995 forms the basis of biodiversity change analysis. ��~Y�R���������#�y�[�>nu��� Fig.1.1 Nigeria Population Structure, 2016 2 Fig.1.2 Nigeria Demography – by State and Sex. On the Annual and Seasonal Pattern of Rainfall Fluctuations in Sub-Saharan West Africa. It has long been a topic of interest in the fields of meteorology in establishing a probability distribution that provides a good fit to daily rainfall. Hence, this study investigates change detection in rainfall pattern over each climatic zone of Nigeria. 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. Article/chapter can be downloaded. 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). of2013. Apart from the general southward shift in rainfall patterns, the duration has also reduced from 50-360 (1993-2003) to 30-280 (2003-2013) rainy days per year. Unlimited viewing of the article/chapter PDF and any associated supplements and figures. This study examines the length of the growing season in Nigeria using the daily rainfall data of Ikeja, Ondo, Ilorin, Kaduna and Kano. 0000002997 00000 n Abstract. 0000012895 00000 n Olaniran (1990) considered the changing pattern of rainy days in Nigeria between 1919-1985. Climate change is perhaps the most serious environmental threat to the fight against hunger, malnutrition, disease and poverty in Africa, mainly through its impact on agricultural productivity.

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