Geography Reference
In-Depth Information
a)
a
b
b)
Figure 13. An integration of urban footprint and administrative data: (a) Overlay of
extracted urbanized land use and local administrative/population data (b) Vulnerable
urban land use by LGA.
The result shows that Kosofe LGA which lies within the Ogun River
floodplain has the highest estimated number (44,227) of vulnerable people to
flooding. This is about 26 percent of the entire vulnerable population by LGA.
Followed by Amuwo-Odofin and Shomolu LGAs with vulnerable population
of 24,253 (14.1 percent) and 22,493 (13.0 percent) respectively.
The final result of this analysis is the generation of a comprehensive flood
risk geo-database system which contains both spatial and non-spatial data. In
the database, a query system was built for quick and easy search of flood
information for decision making processes.
