GEOSPATIAL MODELING AND MULTI TEMPORAL ANALYSIS OF URBAN DEVELOPMENT TRENDS IN WARRI TOWN DELTA STATE, NIGERIA

Overview & Synopsis

This paper examines the use of GIS and Remote Sensing in geospatial modeling and multi temporal analysis of urban development in Warri town from 1987 to 2013. Thus the study is to carry out a geospatial modeling and multi-temporal analysis of development trends, thereby detecting the changes that have taken place between these periods. Three Landsat images, Landsat 5TM (1987), Landsat 7ETM+ (2002) and Landsat 8 OLI (2013) were acquired, classified and change detection analysis was performed to determine the multi-temporal urban changes between the years. The result indicated a rapid growth in built-up area between 1987 and 2013. Built up area had 155590200m² in 1987, then increased to an area of 249725653.3 m² in 2002, then increased to an area of 334934100m² in 2013 indicating a stage of modern industrialization and urbanization. It was also observed from the trend of change, that built up area had an annual rate of change of 1.55% from 1987 to 2002 and 1.81% from 2002to 2013 and may likely continue to increase gradually further down the years. It was further recommended that studies on the impact of urban development in be carried out in order to determine effects of rapid urbanization in Warri town and that Land Consumption Rate and Land Absorption Coefficient should be incorporated in future research studies since built up area expansions is a combination of anthropogenic activities and one that also affects the other classes (socially and economically).