How to prepare for floods using aerial mapping
Aerial mapping is an essential tool for flood preparation, as it can provide detailed and up-to-date information about the terrain and potential flood risks in an area. Here are some of the main ways aerial mapping can be used in flood preparedness.
Aerial mapping can capture high-resolution imagery of the land surface, allowing for detailed analysis of topography, elevation and land features. This information helps identify low-lying areas, natural drainage patterns and potential flood pathways. By understanding the terrain, planning authorities can assess the vulnerability of different regions to flooding and develop appropriate mitigation strategies.
Aerial mapping can be used to delineate floodplains, which are the areas adjacent to rivers or other bodies of water that are prone to flooding. By accurately mapping floodplains, it’s possible to define flood risk zones and establish regulations for land use and development in these areas. This helps in minimising the exposure of infrastructure and communities to flood hazards.
Emergency response planning
Aerial mapping can aid in emergency response planning by providing accurate and up-to-date information on infrastructure, road networks and critical facilities within flood-prone areas. This data helps emergency management agencies identify evacuation routes, plan for the placement of emergency shelters, and coordinate rescue and relief operations effectively when disaster strikes. Nearmap ImpactResponse can provide a detailed view of this information in the wake of major events through near real-time high-resolution imagery and data. This information can be crucial to creating safe, time-sensitive strategies for response, recovery, and repairs.
Flood modelling and simulation
Aerial imagery can be used to create detailed 3D models of an area, which can then be integrated with hydrological data to simulate flood scenarios. These models help predict the potential extent and depth of flooding under different conditions, informing flood forecasting and early warning systems. By incorporating real-time data from weather stations and river gauges, aerial mapping can provide timely information to emergency responders and decision-makers during floods.