Application of GIS And Remote Sensing in Assessment of Storm Water Drainage System

Abstract

A method is described integrating GIS and remote sensing to assess storm water drainage systems. Embakasi sub-County is selected as a study area. First the digital elevation model will be delineated so as to show stream flow and stream networks and the basins in the region. Using the elevation data, various morphometric factors will be computed to determine areas that are susceptible to storm water damage or disturbances. This will be performed using weighted overlay analysis. A correlation between the hotspot areas and the land use within the area is used to determine which land use is most affected by the storm water disturbance. The correlation results are then visualized on a web interactive interface for spatial planning.