How can l do flood mapping assessment using a combination of topography and development alignment to identify flood prone locations?
Help me, please
What information do l need to include in my research methodology, population sampling and design
and how can l do interviews as a method of data collection regarding this study
Creating flood maps involves combining topography and development alignment to pinpoint areas to flooding. The process includes gathering data establishing flood risk standards using GIS software to study topography evaluating development alignment simulating flood scenarios verifying with data crafting flood hazard maps sharing findings, with stakeholders and regularly updating and refining the maps in response to changing data and development trends. Input from stakeholders and insights gained from flooding incidents can enhance the precision and efficacy of flood risk assessments. This process encompasses assessing areas, with elevation, depressions, natural drainage pathways, slope angles, water flow directions and watershed boundaries.
using the spatial analysis tools- overlay-weighted overlay, ArcGIS Software
land use, slope, and rainfall. ArcGIS can be used to determine flood-prone areas, calculate the weight of each flood factor, 20-year return period, hydrological analysis, and rain distribution maps. These parameters are analyzed using ArcGIS overlay intersection and are weighted with the Analytical Hierarchy Process (AHP) method.