Estudio de evapotranspiración potencial y precipitación efectiva del cantón Loja

This research estimated the distribution of evapotranspiration (ETo) and effective precipitation in Loja canton using data from the meteorological yearbooks of the National Institute of Meteorology and Hydrology (INAMHI) and reanalysis data from the CHELSA portal (Climatologies at High Resolution for the Earth's Land Surface Areas). These variables are fundamental for determining crop water requirements. The study compared both databases to identify possible significant differences and evaluate the usefulness of reanalysis data in areas without climate information. To determine ETo, the Hargreaves and Samani method was applied, based on the availability of climatic data. Effective precipitation was estimated using the USDA Soil Conservation Service formula. Data from a 24-year period (1990-2013) were analyzed for both databases to compare and adjust the reanalysis data to ensure their accuracy for agricultural production water use planning. The results showed no significant differences when analyzing the Pearson correlation coefficient. For ETo, a coefficient of 0.78 was obtained, and for effective precipitation, a coefficient of 0.96, indicating a high positive correlation and a linear relationship between the estimated data. Therefore, the use of CHELSA Climate reanalysis data can be considered in areas with scarce climatic information.

• Main Author: Imbaquingo Chicaiza, Marjorie Fernanda (author)
• Format: bachelorThesis
• Language: spa
• Published: 2024
• Subjects: EVOTRANSPIRACION DE REFERENCIA; PRESEIPITACION EFECTIVA; CORRELACION DE PEARSON
• Online Access: https://dspace.unl.edu.ec/jspui/handle/123456789/30020