CORRELATING PATTERN OF RIVER DISCHARGE WITH DEGREE OF URBANIZATION IN SUB-CATCHMENTS OF RIVER ASA IN ILORIN, NIGERIA

Abstract The study examined the hydrological response pattern of urbanized streams to landuse in sub-catchment areas of River Asa in Ilorin, Nigeria. Data for the study were collected directly from the field over a period of one hydrological year. Rainfall data were collected in each basin using a standard rain gauge of 20cm orifice while […]

SPATIO-TEMPORAL ANALYSIS OF LAND SURFACE TEMPERATURE VARIATIONS IN THE RAPIDLY DEVELOPING AKURE AND ITS ENVIRONS, SOUTHWESTERN NIGERIA USING LANDSAT DATA

Abstract The study attempted to assess land surface temperature (LST) variations in Akure, a millennium development city, and its environs, in Nigeria. The importance of LST as a vital component in global climate change cannot be over emphasized because as the greenhouse gases in the atmosphere increases, the LST also increases. Spatio-temporal assessment of LST […]

RELATIONSHIP BETWEEN EXTREME DAILY RAINFALL AND MAXIMUM DAILY RIVER DISCHARGE WITHIN LAGOS METROPOLIS

Abstract Many research works emphasized on rainfall pattern and urban flooding while others examined the relationship between extreme rainfall and its implication for flood frequency with little attempt to establish relationship between extreme rainfall and maximum river discharge. This study therefore, draws interconnection between extreme daily rainfall and maximum daily river discharge within Lagos metropolis. […]

MORPHO-TECTONIC ANALYSIS OF TEKEZE WATERSHED IN ETHIOPIA USING GEOINFORMATICS

Abstract This study examines the morpho-tectonic settings of the drainage system in the northwestern Ethiopian plateau by focusing on the Tekeze River. The plateau is underlain by Precambrian crystalline rocks, overlain by EOCENE and Late Oligocene basalts. An attempt is made to study the underlying geology of Tekeze river basin and its significance in morphometry […]

RATE OF LAND COVER CHANGE AND ITS DETERMINANTS IN THE SOUDANO-GUINEA TRANSITION ZONE OF BENIN REPUBLIC

Abstract The paper assesses land cover dynamics and its associated drivers in the soudano-guinea transition zone of Benin Republic, using both spatial and non-spatial data. Multispectral and multi temporal Landsat imageries (Landsat TM of 1986, ETM+ of 2000 and OLI-TIRS of 2013) were used for the analysis of land cover dynamics through a supervised classification. […]

HEALTH RISK OF HEAVY METALS IN Celosia argentea L. GROWN ON MUNICIPAL WASTE SOILS IN IBADAN, NIGERIA

Abstract This paper assessed the appropriateness of dumpsites in Urban and Peri-urban Agriculture (UPA). The bioaccumulation and potential heavy metal-toxicity risk of consuming Celosia argentea L. grown on four different dumpsites soils (Ajibode, Sasa, Moniya and Akinyele) and reference soil from University of Ibadan Training and Research Farm was also evaluated. The soil samples were […]

FACTORS INFLUENCING WILLINGNESS TO PAY FOR IMPROVED URBAN SERVICES IN SELECTED SLUM COMMUNITIES: EMPIRICAL EVIDENCE FROM LAGOS MEGACITY

Abstract The diminishing resource-capacities of governments for intervention-cum-development purposes vis-à-vis the threats of exacerbating degeneration of existing slums, driven by uncontrollable influx of immigrants, motivated this research. It analyses the factors of willingness to contribute diversely to improve urban service provision in selected slum communities of Lagos Megacity. Cluster sampling technique was used to identify […]

TIME SERIES MODELING OF THE DISTRIBUTION OF MONTHLY RAINFALL IN HAWASSA CITY, ETHIOPIA

Abstract Rainfall is the most key variable both in atmospheric and hydrological cycle. Its patterns usually have spatial and temporal variability. This variability affects agricultural production, water supply, environment, and the existence of its people. Its variability assumed to be the main cause for the frequently occurring extreme events such as drought and flood. The […]