Moniquirá river flood threat assessment in the municipality of Moniquirá, Boyacá

Abstract

The risk assessment for floods within the municipalities has been gaining importance not only for the study and research of these, but also for the communities that are the main affected; Therefore, government authorities have managed to create and strengthen issues related to risk management. Taking into account that the availability and quality of this information, as well as the data processing, are not carried out in the most precise and adequate way, it makes the uncertainty and misinformation greater and this creates deficiencies when trying to propose a first solution to the problem. Building a flood risk zoning in the municipality, with its own sources of information, provides a tool that serves to consider possible solutions that manage to mitigate the emergency, reducing losses to their maximum possible. Within this context, a methodology has been developed to generate flood hazard maps for 4 different return periods, identifying frequently flooded areas and characterizing the area, such as geomorphology and hydrology-hydraulics from data collected in work field, national hydrological networks, orthophotos, basic cartography and digital elevation models.