USE OF UAV IMAGERY FOR RAINWATER HARVESTING SYSTEMS AND SANITATION INFRASTRUCTURE IN A REMOTE VILLAGE OF MALI

Código

XXVI-SBRH0139

Autores

Beatriz Macêdo Medeiros, LUCIANA SANCHES, Camila Silva Franco, ANDRÉA APARECIDA RIBEIRO CORRÊA, Milson Evaldo Serafim, Marx Leandro Naves Silva, Bernardo M. Cândido, João José Granate de Sá e Melo Marques

Tema

F - Processos Hidrológicos e Monitoramento Integrado de Recursos Hídricos

Resumo

Remote areas with political instability and administrative limitations, such as those in Mali, are home to villages with poor sanitation conditions, making access and monitoring particularly challenging. Under these circumstances, the use of imagery obtained by unmanned aerial vehicles (UAVs) enables a more effective strategy for water supply and sanitation planning, as demonstrated in the case of the village of Bandiagara II, located in southern Mali, Africa, which is the focus of this study. Using a DJI Phantom 4 RTK drone, high-resolution images were captured, allowing the identification of roof types, spatial organization of buildings, and the location of sanitation structures and wells. Based on the image analysis, it was possible to assess the necessary infrastructure for implementing rainwater harvesting from building rooftops and to identify critical contamination areas due to the proximity between latrines and hand wells. The images supported the implementation of sanitation solutions and served as a basis for an inventory of hygiene structures. The results highlight that UAVs are practical tools for planning and monitoring in vulnerable regions, contributing to improved living conditions and water security.