The threat of coastal change in Mbo coastal has been
highlighted in this study. Remote Sensing and GIS
technologies provide effective means of studying coastal
hazard. The study of coastline changes is of enormous
benefit to the understanding of complex coastal
ecosystems. Coastlines are widely used as ports for
navigation and maritime commerce. They are therefore of
economic value and critical to the socio-economic
development of non-land locked nations. The presented
method of combining GIS and image processing shows its
ability to detect coastline changes over time, in a broad scale using Landsat images. Using statistics allows
quantitative analyses of small changes even of about 1 m
per year. The bigger changes of few meters per year may
be efficiently detected using this method along long
segments of coast. Excessive human and anthropogenic
activities around the coast was discovered as the socio
economic factors which has given rise to decline in the
percentage change of water body, wetland and mangrove
of the study area. Land use/land cover map of the study area generated will
aid the planners and decision makers for a quick
assessment of the potential impact of human activities
around the area and initiation of appropriate action to
minimize the action. The study helps us know the impact
of changes on agricultural land (cultivation area), which
practice is also affected as a result of thinning out of
agricultural land which has also been taken over by flood
in some case and encroachment.
The study suggests the following measures to prevent
future haphazard development and encroachment.