Rainfall and citizen science

There are few historical records of floods & landslides in the Rímac river watershed in terms of hydrometeorological variables with enough spatial and temporal accuracy. Is is a strong limitation to understand the relationship between precipitation and the activation of a ravine. It also limits how people in vulnerable situations can benefit from initiatives related to Early Warning Systems (SAT) at any of its levels: alarm, alert or forecast. On the other hand, people exposed to these risks have wide local knowledge about past events and great willingness to actively participate in disaster risk management.