THE USE OF GEOGRAPHIC INFORMATION SYSTEM IN LANDFILL SITES SELECTION IN JOS NORTH, PLATEAU STATE
THE USE OF GEOGRAPHIC INFORMATION SYSTEM IN LANDFILL SITES SELECTION IN JOS NORTH, PLATEAU STATE
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Date
2014-06
Authors
AHMED, Murtala Hassan
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Abstract
This study identifies suitable sites appropriate for solid waste landfill in the vicinity of
Jos-North using Remote Sensing and of Geographic Information Systems (GIS).
Remote Sensing was used for generating a landuse map of the study area and GIS was
used in integrating various layers of information, practically having the same spatial
reference, to produce a suitability map for solid waste landfill. The task required a
number of multiple criteria, and each having some level of importance. In order to
accommodate the significant role of each criteria, the Multicriteria Decision Analysis
(MCDA), particularly Analytic Hierarchy Process (AHP) was employed. For this
purpose, nine (9) input map layers including settlements, roads, wetlands, slope,
geology, soil, landuse, floodplains, and surface water were prepared and used as
constraint criteria for determining suitability. Weighted overlay tool in ArcGIS 9.3 was
used for the final suitability map, and it yielded conformable results. Out of 291km2 of
the entire study area, 20.8km2 was found to be suitable for siting sustainable landfill.
The map layers related with geology, hydrogeology, and land use are based on available
data. Because they are not specifically prepared for landfill site selection purpose, the
information provided from these maps were not quite satisfactory. It is understood that
rather than general purpose lithological map, the maps showing distribution, thickness,
and characteristics of the unconsolidated superficial deposits are more helpful. Thus, for
landfill siting studies, special purpose engineering geological and hydrogeological maps
are required. The slope layer needs to be refined to exclude those areas along the ridges
and the hill tops
Description
A THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL,
AHMADU BELLO UNIVERSITY, ZARIA,
NIGERIA
IN PARTIAL FULFILLMENT FOR THE AWARD OF MASTERS IN REMOTE
SENSING AND GEOGRAPHIC INFORMATION SYSTEMS
DEPARTMENT OF GEOGRAPHY,
AHMADU BELLO UNIVERSITY, ZARIA,
NIGERIA
Keywords
GEOGRAPHIC,, INFORMATION SYSTEM,, LANDFILL,, JOS NORTH,,, PLATEAU STATE