Ponencia Jueves Científico promovida y organizada por el SENAMHI

Universidad Nacional Agraria La Molina. Facultad de Ingeniería Agrícola. Departamento Académico de Ordenamiento Territorial y Construcción

Publicación realizada en el marco del Proyecto de Apoyo a la Gestión del Cambio Climático (Fase 2). Una iniciativa del gobierno peruano, liderado por el Ministerio del Ambiente y el Servicio Nacional de Meteorología e Hidrología del Perú.

A new FAO Penman-Monteith reference evapotranspiration gridded dataset is introduced, called PISCOeo_pm. PISCOeo_pm has been developed for the 1981–2016 period at ~1 km (0.01°) spatial resolution for the entire continental Peruvian territory. The framework for the development of PISCOeo_pm is based on previously generated gridded data of meteorological subvariables such as air temperature (maximum and minimum), sunshine duration, dew point temperature, and wind speed. Different steps, i.e., (i) quality control, (ii) gap-filling, (iii) homogenization, and (iv) spatial interpolation, were applied to the subvariables. Based on the results of an independent validation, on average, PISCOeo_pm exhibits better precision than three existing gridded products (CRU_TS, TerraClimate, and ERA5-Land) because it presents a predictive capacity above the average observed using daily and monthly data...