Journal of Remote Sensing & GIS

Geospatial analysis of the spatio-temporal growth of federal capital city, Abuja, Nigeria

5^th International Conference on GIS and Remote Sensing

September 16-17, 2019 | Rome, Italy

Benedine Akpu

Ahmadu Bello University, Nigeria

Scientific Tracks Abstracts: J Remote Sens GIS

Abstract:

The movement of the Capital of Nigeria to Abuja in 1991 triggered the rapid urbanization process in the area and presently, it is said to be one of the fastest growing cities in the world. This rapid growth has mounted pressure on the city, and the surrounding settlements thereby threatening the limited resources. This paper therefore applied Remote Sensing, Geographic information Techniques and Shannon’s Entropy model to analyze the spatio-temporal growth of the Federal Capital City, Abuja, Nigeria. The data used include: Landsat TM (1992), Landsat ETM+ (2002) and Landsat ETM+ (2014). The datasets were processed and classified into Landuse and Landcover classes using Supervised classification technique with Maximum Likelihood Algorithm. The built-up areas were extracted and the extent and rate of growth over the study period were determined. Shannon’s Entropy Model was used to determine the pattern of urban expansion by dividing the area into zones. The study revealed that the built-up (urban) area increased from about 9,016hectares in 1992 to 16,841.6 hectares in 2014, growing at the rate of 3.95% annually. The relative entropy value increased steadily giving a value of 0.1458 in 2014. The Entropy increased by 24.0% between 1992 and 2014. The findings further show that areas with low Entropy values were found in zones 14 and 15 while high values were in zones 2 and 3. This study therefore, recommends that the urban land development should be directed towards the southern part of the city since it is less developed than the northern part.

Biography :

Benedine Akpu completed her PhD in the year 2012 from Bayero University, Kano, Kano State, Nigeria. She is a Senior Lecturer in the Department of Geography and Environmental Management, Ahmadu Bello University, Zaria, Kaduna State, Nigeria. She has published about twenty (20) papers in reputable journals and attended several conferences both national and International. She has supervised several postgraduate research projects in the field of Remote Sensing and GIS, Urban Geography as well as Environmental Management.