Evaluation about the Stimulation of Rainfall Program


  • Nicolás Garciá Mendez
  • Felipe Martin Cuadrado Comision Nacional de Riego
  • Jaime Yáñez Acevedo Comision Nacional de Riego
  • Mónica Rodriguez Bueno
  • Zhanyu Yao Chinese Academy of Meteorological Sciences
  • Alex Madariaga SEREMI the Agriculture the regions of Atacama
  • Daniela Noranbuena SEREMI the Agriculture the regions of Coquimbo
  • Francesco Venezian SEREMI the Agriculture the regions of Valparaiso
  • Mauricio Donoso SEREMI the Agriculture the regions of O'Higgins


rainfall, water infrastructure, innovation, drought, productivity.


In a private/ public work was allowed to put in motion the program of cloud seeding, multiregional and multispectral program, created by the common need to face the drought. In this sense and because of the emergency,tThe regions of Atacama, Coquimbo, Valparaiso and O’Higgins, decided to establish programs to increase the level of rainfalls. The present study has the aim, the evaluation of the program of cloud seeding, to this, an interrelationship analysis was used to compare the performance of rainfalls and the water level (volume of flow) of a control basin, in this case, Maipo River, with the basin where the plan was implemented, then two methods were used, the first defined a rate between the improved and the control basin, the second corresponds to a creation of a model of rainfalls where the dependent variable is the rainfall of basin encouraged as a function to the control basin. Subsequently, was done a test of average hypothesis to the estimate factor (rate) and another to the effects of the model with the effectively precipitated.  The data which were observed allow concluding that there is an interrelationship between daily rains of the metropolitan region within the regions of Valparaiso, O’Higgins and Maule. The same is observed in daily middle flow of Copiapó, Elqui, Choapa, Aconcagua, Cachapoal, Tinguiririca and Teno with the flow of Maipo. In relation to the test of the hypothesis of the model, the results show a meaningful difference with respect to a normal year does not exist, for the Regions of Valparaiso and O’Higgins, noticed an increase in rainfalls.


Author Biography

Mónica Rodriguez Bueno

Comision Nacional de Riego






Technical Notes and Correspondence