Open Access. Powered by Scholars. Published by Universities.®

Physical and Environmental Geography Commons

Open Access. Powered by Scholars. Published by Universities.®

SelectedWorks

Satellite Imagery

Publication Year

Articles 1 - 3 of 3

Full-Text Articles in Physical and Environmental Geography

An Analysis Of The Changing Land Use And Its Impact On The Environment Of Anyigba Town, Nigeria, Olarewaju Oluseyi Ifatimehin, Salihu Danlami Musa Mar 2009

An Analysis Of The Changing Land Use And Its Impact On The Environment Of Anyigba Town, Nigeria, Olarewaju Oluseyi Ifatimehin, Salihu Danlami Musa

Olarewaju Oluseyi Ifatimehin

Urbanization is a process that always initiates the continual transformation of land from one use to the other. Land transformation is presently being experienced in and around fast growing towns, like Anyigba in Kogi State. This study used Remote sensing and GIS techniques to identify, mark, and measure the extent of the various land uses from the Land use map of 1995 and Nigeriasat 1 imagery of 2006. The study revealed that there have been tremendous transformation in the various land uses, with the built-up area expanding more than other land uses with 398.4%. Gaining 167 ha, 613.45 ha, 159.62 …


Remote Sensing And Gis Applications In Urban Expansion And Loss Of Vegetation Cover In Kaduna Town, Northern Nigeria, Olarewaju Oluseyi Ifatimehin Jan 2008

Remote Sensing And Gis Applications In Urban Expansion And Loss Of Vegetation Cover In Kaduna Town, Northern Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Anthropogenic drivers such as the urbanization and economic dependence have being a major force shaping various landscapes. Kaduna town is no exception of such landscapes. This study uses remote sensing and GIS techniques with survey to identify the various land uses, their various transformations over the a period of 11 years (1990-2000)and to measure the rate of urban expansion and loss of vegetation cover in the study area. The study revealed that built-up area is expanding at about 167.86 hectares annually vegetation covers declining at a faster rate of 297.5 hectares annually. It also revealed that bare land a component …


An Analysis Of Urban Expnasion And Loss Of Vegetation Cover In Lokoja, Using Gis Techniques, Olarewaju Oluseyi Ifatimehin Jan 2006

An Analysis Of Urban Expnasion And Loss Of Vegetation Cover In Lokoja, Using Gis Techniques, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Since Lokoja became an administrative headquarters of Kogi State in 1991, it has been experiencing rapid expansion, urbanization and significant changes in its physical landscape – land use and land cover changes. This study uses remote sensing and GIS techniques combined with field checks and survey to map land use and land cover changes and to measure the rate of urban expansion and loss of vegetation in Lokoja between 1987 and 2005. There was a considerable change in land use types over the said period of the study. The built-up area, vacant land, cultivated land and other land use type …