Abstract
It is estimated that by the year 2050, half of the world will be urbanized and developing countries will be leading the crusade. This rapid urbanization will put more pressure on environmental system. The traditional in-situ assessment of land change will no longer be feasible because of increased urbanization. This study assessed the land use/ land cover dynamics in Port Harcourt city of River State. Land-use classification and change detection was conducted using multiple satellite data sources (Landsat TM, ETM) of Port Harcourt city for 1986, 2003 and 2018. Kappa statistical too and ArcGIS Software were also employed for further analysis. The key findings showed that urbanization was rapid and exponential. These observed urbanization occurred due to conversion of forest reserves, agricultural lands and water bodies to urban land. Keywords: Land use, Land cover, Satellite, Imagery, Urbanization, Port Harcourt DOI: 10.7176/JEES/10-6-05 Publication date: June 30 th 2020
Highlights
It has been projected that cities will accommodate about 70% of the global population by 2050 (UN, 2012); Compared to the current urbanization rate of 50%
For the Landsat TM, ETM+ and Operation Land Imager (OLI), a False Colour Composite (FCC) operation was performed using the ArcGIS 10.4 software and the images were combined in the order of band 5, 4 and 3 for Landsat TM and ETM+ while that of Landsat OLI was in the order of band 6, 5 and 3 due to change in sensor
Percentage of Study Area covered in 2018 Urban areas had covered 51% of the entire study area, indicating a region in high risk of issues associated with increased urbanisation, such as air and water pollution, urban heat island, disease prevalence, urban flooding etc
Summary
It has been projected that cities will accommodate about 70% of the global population by 2050 (UN, 2012); Compared to the current urbanization rate of 50% Such rate of rapid urbanization means higher densities in existing cities and many newer urban areas to accommodate up to 2 billion new urban dwellers. The use of remotely sensed data has been widely applied as a tool to effectively study the extent of LULC in many cities across the world (Shalaby and Tateishi, 2007; kafi et al, 2013). These studies have acknowledged that remotely sensed LST can provide a spatially continuous data over a whole city or region, permitting visualization of spatial relationships between temperature patterns and urban land uses (Enete, 2009; Enete et al, 2016)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
