The use of water resources in a basin is based on the availability of surface runoff, which is affected by both climatic factors and physiographic characteristics, among other aspects. The objective of the research was to evaluate the performance of the semi-distributed hydrological models Hydrologiska Byrans Vattenbalansavdelning (HBV) and Sacramento Soil Moisture Accounting (SAC) for the Huancane River basin using the hydrological and hydraulic modeling platform RS MINERVE. The Huancane watershed was delimited and divided into 09 contribution zones from the gauging station. For the hydrological modeling, hydro-meteorological information was used in daily time steps from January 1991 to December 2015. The calibration phase was carried out from January 1991 to December 2010 and the validation phase from January 2011 to December 2015. An efficiency measure was used to evaluate the simulated series against the observed daily flow rates, such as the Nash-Sutcliffe ratio, the logarithmic Nash coefficient (Nash-ln), the Pearson correlation coefficient, and the relative root mean square error (RRMSE). The results obtained in the study show that the HBV and SAC-SMA models describe the sequence of observations with high accuracy, being more representative in the dry season; both models have some incompatibilities regarding the rainy season, failing to properly represent the extreme values, which is attributed to the climatic parameters involved. Likewise, we can highlight that the model with the largest number of SAC-SMA parameters has a better performance than the HBV model, both in the calibration and validation stages.

Disaster risk management involves reducing disaster damage to homes, critical infrastructure and the interruption of basic services and developing their resilience. This work analyzes the perception of geohydrological risk by the population living or working in the town of Cuyocuyo (southern Peru), which was affected in previous years by events of landslides, debris flow and floods. In order to analyze the effect of the social perception of geohydrological risk on disaster preparedness in areas under threat from landslides and debris flow, a survey was applied to 65 adult heads of household. The method for estimating results was logit regression. The results show the following: First, the preparation through the acquisition of items necessary to avoid the impact of the disaster is related to indicators of perception of disaster risk and the age of the population. Second, the knowledge and prevention of disaster mitigation significantly depends on indicators of dependency of the place and the affection of the place. Third, the participation of households in trainings and drills to prevent disasters organized by the government depends significantly on the indicators of the perception of probability of the disaster, threat of disaster risk and the identity of the place and Fourth, the modification and reinforcement of the buildings of the settlers depends positively on the dependence of the place.