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SelectedWorks

Selected Works

2008

Articles 1 - 8 of 8

Full-Text Articles in Physical and Environmental Geography

Application Of Geoninformatic Technology In Evaluating Urban Agriculture And Urban Poverty In Lokoja, Nigeria, Olarewaju Oluseyi Ifatimehin, Salihu Danlami Musa May 2008

Application Of Geoninformatic Technology In Evaluating Urban Agriculture And Urban Poverty In Lokoja, Nigeria, Olarewaju Oluseyi Ifatimehin, Salihu Danlami Musa

Olarewaju Oluseyi Ifatimehin

The role of urban agriculture in the food supply of cities and towns, as a complement to rural agriculture is becoming an important issue in a globalizing world economy. The developing countries see it as a way to alleviate urban poverty. Remote sensing and GIS techniques were used to assess areal extent of urban agricultural land in Lokoja. Questionnaires were also used to evaluate the contributions to urban agriculture to food security and income generation among the urban poor in Lokoja. The result revealed that urban agricultural land had increased, thereby implying that urban agriculture is supporting many urban poor …

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Suitability Mapping Of Sesame Cultivation In Nigeria, Charles Alegbe Jan 2008

Suitability Mapping Of Sesame Cultivation In Nigeria, Charles Alegbe

Charles Alegbe

Nigeria as a microcosm of the sub-Saharan Africa has agriculture as her mainstay which provides employment and source of livelihood for the increasing population. Sesame also known as beniseed, which is a very sensitive cash-crop to environmental factors such as rainfall, temperature and soil types; is not an exception as it has become one of the foreign exchange earners for Nigeria. The objective of this project is to use Geographical Information Systems (GIS) as a decision making tools to solving the spatial problems of sesame suitability mapping in Nigeria. Basic GIS operations ranging from spatial to aspatial search, reclassification and …

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An Application Of Geoinformatics For Estima Ting Surface Temperature In A Rapidly Developing Urban Area Of Kogi State, Nigeria, Olarewaju Oluseyi Ifatimehin Jan 2008

An Application Of Geoinformatics For Estima Ting Surface Temperature In A Rapidly Developing Urban Area Of Kogi State, Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

This study used remote sensing techniques to estimate surface radiant temperature of Lokoja town from LandSat ETM satellite imagery of 2001. The research was conducted in the phases of Pre-fieldwork, fieldwork and post fieldwork. Data generated from the field and satellite imagery were integrated, analysed, interpreted in a GIS environment. The result indicated that built-up area (336.14 K) and vacant land (321.63 K) exhibit the highest surface radiant temperature, while vegetated surfaces (301.23 K), water bodies (303.06 K) and cultivated land (307.56K) recorded the lowest radiant temperature respectively. Specifically, the resulting land surface temperature was 313.06K. Generally, this approach was …

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Geostatistical Approach To The Control Of Typhoid Fever In A Part Of Kogi State, Nigeria, Olarewaju Oluseyi Ifatimehin Jan 2008

Geostatistical Approach To The Control Of Typhoid Fever In A Part Of Kogi State, Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Typhoid fever is a common ailment affecting many resident especially the inhabitants of Anyigba. The problem is spatially related to the lack of portable water. The Human Health Risk Analysis methods of SADA (Spatial Analysis and Decision Assistance) software was used to evaluate the health impact of water source. Maps of Anyigba were converted into digital form using Idrisi GIS software and the resulting coverages included hydrological Features, wards, population and environmental pollution in Anyigba. The Water sources were categories into A and B based on the cumulative scores < 5 for A and > for B based on the perceived vulnerability to various contamination. T-test …

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A Satellite Remote Sensing Based Land Surface Temperature Retrieval From Landsat Tm Data., Olarewaju Oluseyi Ifatimehin Jan 2008

A Satellite Remote Sensing Based Land Surface Temperature Retrieval From Landsat Tm Data., Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Land Surface Temperature (LST) of Lokoja town were retrieved from LandSat TM imagery of 1987. The NDVI and land emissivity were estimated from visible and near infrared bands, while the effective satellite temperature was estimated from the thermal infrared band. The Qin et al's mono-window algorithm was employed to obtain the land surface temperatures of the different land use/cover types in Lokoja town. The result indicated that vacant land and built-up have the highest LST values of 331.13K and 329.82K, and vegetation, water bodies and cultivated land having the least with 294.03K, 296.76K and 306.06K respectively. The average retrieved LST …

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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 …

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Application Of Remote Sensing And Gis Techniques In Mapping Areas Favourable For Fadama Farming In Gwagwalada, Abuja, Nigeira, Olarewaju Oluseyi Ifatimehin Jan 2008

Application Of Remote Sensing And Gis Techniques In Mapping Areas Favourable For Fadama Farming In Gwagwalada, Abuja, Nigeira, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Because of the important and scarcity of fadama land as well as needs for sustainable development, mapping of areas favourable for fadama farming is likely to be reliable step towards effective fadama farming and rural development in Gwagwalada area. In this study Remote Sensing and GIS techniques were utilized to map out areas that can be favourable for fadama farming. Four steps were followed in mapping areas that are favourable for fadama farming (i) the vector maps were first scanned into Microsoft word software from where it was transferred into the ILWIS GIS software and were digitized on-screen to generate …

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The Spatial Pattern Of Commercial Banks In Kogi State Of Nigeria, Olarewaju Oluseyi Ifatimehin Jan 2008

The Spatial Pattern Of Commercial Banks In Kogi State Of Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

This study examines the relationship of commercial banks distribution across geographic space and the socio-economic potentials therein. Ground truthing and socio-economic survey were employed to ascertain the number of banks available in each senatorial district of the state and to ascertain the socio-economic profile of the users of these banks respectively. Statistical technique was use in the analysis of market segmentation through factor and cluster analysis, and GIS techniques for spatial analysis. It was discovered that the major factor responsible for the spatial variation in the clustering of banks is the distribution of government owned parastatals and Industries in the …

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