Spatial characterization of climatic variables for Arica-Parinacota and Tarapacá, Chile using topoclimatic analysis

In the present study, models were developed to determine the monthly and annual spatio-temporal variation of temperature, precipitation, and solar radiation based on topoclimatic analysis of Arica-Parinacota and Tarapacá in northern Chile. To construct the equations of the topoclimatic model, the data from meteorological stations and physiographic factors (latitude, longitude, altitude, and distance to bodies of water) obtained from a digital terrain model with a resolution of 90 m were compiled in a database. The equations of the topoclimatic model were generated by a stepwise regression with a backward selection technique. The equations for average monthly temperature, precipitation, and solar radiation were determined by linear combinations. The results were statistically significant with coefficients of determination greater than 90%, in addition to being greater than the existing climate databases for this area

Understanding Conditioning Factors for Hydroelectric Development in Chile: Bases for Community Acceptance

Chile has defined an energy development policy in which hydropower is an important part of the energy grid. This energy source has not yet been accepted by many people in local communities. For future hydroelectric development to be more widely accepted, the Chilean Ministry of Energy developed a methodological framework called Objects of Valuation. This framework is aimed at identifying the main community interests that may condition hydroelectric development. The objective of this paper is to analyze the scope of the framework based on a review of the scientific literature and information generated through participatory activities in three basins that have high hydropower potential. Analyzing the results obtained from the application of the framework, four complementary intangible factors not represented by the framework are identified: the lack of validation of a formal participatory process, under-recognition of different worldviews, distrust regarding the development of hydroelectricity, and a sense of self-determination in the community. These factors could potentially condition community acceptance of hydroelectricity, thereby limiting the framework as a decision-making tool. We recommend that this methodological framework should be complemented by the incorporation of intangible elements in the decision-making process, using a systematic tool applicable to spatial planning and strategic environmental-assessment processes