This study analyzed the spatiotemporal pattern of settlement expansion in Abuja,
Nigeria, one ofWest Africa’s fastest developing cities, using geoinformation and ancillary datasets.
Three epochs of Land-use Land-cover (LULC) maps for 1986, 2001 and 2014 were derived from
Landsat images using support vector machines (SVM). Accuracy assessment (AA) of the LULC maps
based on the pixel count resulted in overall accuracy of 82%, 92% and 92%, while the AA derived from
the error adjusted area (EAA) method stood at 69%, 91% and 91% for 1986, 2001 and 2014, respectively.
Two major techniques for detecting changes in the LULC epochs involved the use of binary maps
as well as a post-classification comparison approach. Quantitative spatiotemporal analysis was
conducted to detect LULC changes with specific focus on the settlement development pattern of
Abuja, the federal capital city (FCC) of Nigeria. Logical transitions to the urban category were
modelled for predicting future scenarios for the year 2050 using the embedded land change modeler
(LCM) in the IDRISI package. Based on the EAA, the result showed that urban areas increased by more
than 11% between 1986 and 2001. In contrast, this value rose to 17% between 2001 and 2014. The LCM
model projected LULC changes that showed a growing trend in settlement expansion, which might
take over allotted spaces for green areas and agricultural land if stringent development policies and
enforcement measures are not implemented. In conclusion, integrating geospatial technologies with
ancillary datasets offered improved understanding of how urbanization processes such as increased
imperviousness of such a magnitude could influence the urban microclimate through the alteration
of natural land surface temperature. Urban expansion could also lead to increased surface runoff as
well as changes in drainage geography leading to urban floods.
Keywords: land-cover change; settlement expansion; support vector machines; urban growth
modelling; climate impact
Mahmoud, M., Mahmoud, M , , 2 , , * , 3, A , 2, C , 2, M & Halilu, * (2018). Analysis of Settlement Expansion and Urban Growth Modelling Using Geoinformation for Assessing Potential Impacts of Urbanization on Climate in Abuja City, Nigeria. Afribary. Retrieved from https://tracking.afribary.com/works/analysis-of-settlement-expansion-and-urban-growth-modelling-using-geoinformation-for-assessing-potential-impacts-of-urbanization-on-climate-in-abuja-city-nigeria
Mahmoud, Mahmoud Ibrahim, et. al. "Analysis of Settlement Expansion and Urban Growth Modelling Using Geoinformation for Assessing Potential Impacts of Urbanization on Climate in Abuja City, Nigeria" Afribary. Afribary, 19 Mar. 2018, https://tracking.afribary.com/works/analysis-of-settlement-expansion-and-urban-growth-modelling-using-geoinformation-for-assessing-potential-impacts-of-urbanization-on-climate-in-abuja-city-nigeria. Accessed 22 Dec. 2024.
Mahmoud, Mahmoud Ibrahim, Mahmoud Mahmoud , 2 , * , Alfred 3 , Christopher 2 , Michael 2 and * Halilu . "Analysis of Settlement Expansion and Urban Growth Modelling Using Geoinformation for Assessing Potential Impacts of Urbanization on Climate in Abuja City, Nigeria". Afribary, Afribary, 19 Mar. 2018. Web. 22 Dec. 2024. < https://tracking.afribary.com/works/analysis-of-settlement-expansion-and-urban-growth-modelling-using-geoinformation-for-assessing-potential-impacts-of-urbanization-on-climate-in-abuja-city-nigeria >.
Mahmoud, Mahmoud Ibrahim, Mahmoud Mahmoud , 2 , * , Alfred 3 , Christopher 2 , Michael 2 and * Halilu . "Analysis of Settlement Expansion and Urban Growth Modelling Using Geoinformation for Assessing Potential Impacts of Urbanization on Climate in Abuja City, Nigeria" Afribary (2018). Accessed December 22, 2024. https://tracking.afribary.com/works/analysis-of-settlement-expansion-and-urban-growth-modelling-using-geoinformation-for-assessing-potential-impacts-of-urbanization-on-climate-in-abuja-city-nigeria