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Planform geometry and relief characterization of drainage networks in high-relief environments: An analysis of Chilean Andean basin

Año: 2019
Categoría: Hidrología, Modelación hidrológica

Título publicación

Planform geometry and relief characterization of drainage networks in high-relief environments: An analysis of Chilean Andean basin

Autores: Andrés Pereira-Claren, Jorge Gironás, Jeffrey Niemann, Paola Passalacqua, Alfonso Mejía, Cristián Escauriaza

Revista: Geomorphology (2019), 341: 46-64

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Abstract

Drainage network types give indications of the landscape evolution processes and the lithologic and structural conditions that produced them. Moreover, drainage network attributes affect the hydrologic response of basins. Several network types have been identified through visual inspection and, more recently, through quantitative methods developed and applied primarily on relatively low-relief regions.

On the Influence of Upstream Flow Contributions on the Basin Response Function for Hydrograph Prediction

Año: 2019
Categoría: Modelación hidrológica

Título publicación

On the Influence of Upstream Flow Contributions on the Basin Response Function for Hydrograph Prediction

Autores: Tomás Bunster, Jorge Gironás, Jeffrey Niemann

Revista: Water Resources Research (2019) 55(6)

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Abstract

Spatially distributed travel time (SDTT) methods have been developed as an alternative to semidistributed and fully distributed methods for rainfall‐runoff modeling. In these methods, the travel times of grid cells are summed along flow paths and then convoluted to generate the hydrograph at the outlet. One central aspect of SDTT models that remains partially addressed is the effect of upstream flow contributions and their dynamics on the calculated flood wave travel times.

Urban Climates in Latin America (Libro)

Año: 2019
Categoría: Cambio climático, Clima, Crecimiento urbano, Planificación urbana

Título publicación

Urban Climates in Latin America (Libro)

Editores: Cristián Henríquez, Hugo Romero

Editorial: Springer (DOI: 10.1007/978-3-319-97013-4)

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Abstract

Este libro describe la observación de los climas urbanos en América Latina y sus relaciones con la expansión urbana, el surgimiento económico de los países latinoamericanos, la segregación social, la ecología urbana, los desastres y la resiliencia. Los capítulos incluyen contribuciones relacionadas con las islas de calor urbano, zonas climáticas locales, confort térmico, contaminación del aire, índice de clima extremo, infraestructura verde, problemas de salud y adaptaciones basadas en el contexto socioeconómico de las zonas urbanas. Este libro revisa el papel de la planificación urbana y la gobernanza ambiental, destacando las singularidades en las políticas de adaptación al clima en los países en desarrollo.

Impact of Urban Growth and High Residential Irrigation on Streamflow and Groundwater Levels in a Peri‐Urban Semiarid Catchment

Año: 2019
Categoría: Cuencas urbanas, Recursos hídricos

Título publicación

Impact of Urban Growth and High Residential Irrigation on Streamflow and Groundwater Levels in a Peri‐Urban Semiarid Catchment

Autores: Pedro Sanzana, Jorge Gironás, Isabelle Braud, José‐Francisco Muñoz, Sebastián Vicuña, Sonia Reyes‐Paecke, Francisco de la Barrera, Flora Branger, Fabrice Rodríguez, Ximena Vargas, Nancy Hitschfeld, Santiago Hormazábal

Revista: Journal of the American Water Resources Association  (2019) https://doi.org/10.1111/1752-1688.12743

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Abstract

The impact of urbanization on groundwater is not simple to understand, as it depends on a variety of factors such as climate, hydrogeology, water management practices, and infrastructure. In semiarid landscapes, the urbanization processes can involve high water consumptions and irrigation increases, which in turn may contribute to groundwater recharge. We assessed the hydrological impacts of urbanization and irrigation rates in an Andean peri‐urban catchment located in Chile, in a semiarid climate.

Public Spaces as Climate Justice Places? Climate Quality in the City of Chillán, Chile

Año: 2019
Categoría: Cambio climático, Crecimiento urbano, Planificación urbana

Título publicación

Public Spaces as Climate Justice Places? Climate Quality in the City of Chillán, Chile

Autores: Pamela Smith, Cristián Henríquez

Revista: Public Spaces as Climate Justice Places? Climate Quality in the City of Chillán, Chile. Environmental Justice  (2013)

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Abstract

The transformations brought about by climate change and the continued growth of cities are having an impact on urban climate. In urban spaces, especially in public spaces, environmental conditions are becoming more uncomfortable and this is affecting the health and quality of life of city dwellers. This study of climate quality in the city of Chillán revealed that there are insufficient public spaces to provide acceptable environmental quality for the entire population.

From Multi-Risk Evaluation to Resilience Planning: The Case of Central Chilean Coastal Cities

Año: 2019
Categoría: Crecimiento urbano, Eventos extremos, Riesgos climáticos, Sistemas socio-ecológicos

Título publicación

From Multi-Risk Evaluation to Resilience Planning: The Case of Central Chilean Coastal Cities

Autores: Pilar Barría, María Luisa Cruzat, Rodrigo Cienfuegos, Jorge Gironás, Cristián Escauriaza, Carlos Bonilla, Roberto Moris, Cristian Ledezma, Maricarmen Guerra, Raimundo Rodrigez, Alma Torres

Revista: Water (2019), 11(3):572

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Abstract

Multi-hazard evaluations are fundamental inputs for disaster risk management plans and the implementation of resilient urban environments, adapted to extreme natural events. Risk assessments from natural hazards have been typically restricted to the analysis of single hazards or focused on the vulnerability of specific targets, which might result in an underestimation of the risk level.

Economic development and residential water consumption in Chile

Año: 2019
Categoría: Cambio global, Crecimiento urbano, Políticas hídricas, Recursos hídricos

Título publicación

Economic development and residential water consumption in Chile

Autores: Juan Fercovic, William Foster, Oscar Melo

Revista: Environment and Development Economics, 24(1), 23–46

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Abstract

A better understanding of the relative importance of factors related to climate change and to changes associated with economic growth would serve to inform water policy and to focus scarce public resources on anticipated problems arising from distinct sources of changes in water demand.

Irrigation of green spaces and residential gardens in a Mediterranean metropolis: Gaps and opportunities for climate change adaptation

Año: 2019
Categoría: Adaptación, Cuencas urbanas, Eficiencia Riego, Gestión adaptativa recursos hídricos, Planificación urbana

Título publicación

Irrigation of green spaces and residential gardens in a Mediterranean metropolis: Gaps and opportunities for climate change adaptation

Autores: Sonia Reyes-Paecke, Jorge Gironás, Oscar Melo, Sebastián Vicuña, Josefina Herrera

Revista: Landscape and Urban Planning (2019)182:34-43

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Abstract

Many cities are facing water shortages because of climate change. Climate adaptation plans have prioritized water saving to prevent the devastating consequences of drought. To develop such adaptation plans, it is critical to understand the water-use patterns of cities. The present research determines the water consumption for irrigation of green spaces and residential gardens in metropolitan area of Santiago, Chile (MAS) and compares this consumption with the expected vegetation water requirements estimated using a hydrological model.

Experiences of voluntary early participation in Environmental Impact Assessments in Chilean mining

Año: 2019
Categoría: Sistemas socio-ecológicos, Vulnerabilidad, Comunidades, Minería

Título publicación

Experiences of voluntary early participation in Environmental Impact Assessments in Chilean mining

Autores: Anahí Ocampo-Melgar, Lake Sagaris, Jorge Gironás

Revista: Environmental Impact Assessment Review (2019) 74:43-53

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Abstract

Citizen participation should ideally occur as early as possible in a project, especially throughout the course of the Environmental Impact Assessment (EIA) study. In Chile, participation occurs after the EIA study has been completed and presented to authorities for evaluation. However, voluntary early participation has become an extended practice in large mining projects for financial and conflict-reduction reasons. The purpose of this study was to explore a variety of these early participation processes happening in large mining projects from 2001 to 2010 and analyze how well these practices measured up to standards and objectives defined in the EIA and participation literature.

Imaginarios Socioculturales de la hidroelectricidad en Sudamérica 1945-1970

Año: 2018
Categoría: Hidroelectricidad

Título publicación

Imaginarios Socioculturales de la hidroelectricidad en Sudamérica 1945-1970

Autores: Fernando Purcell

Revista:  Atenea (Concepción), Vol 518, II, pp. 97-116

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Abstract

Este artículo analiza el papel que tuvieron distintos tipos de imaginarios en la valoración y apoyo al desarrollo hidroeléctrico sudamericano durante las décadas iniciales de la guerra fría. El argumento central es que más allá del impulso y valoración positiva de este tipo de obras, asociado a la necesidad de contar con una fuente energética barata que apoyara los procesos de desarrollo industrial y modernización en distintos países sudamericanos, hubo también un andamiaje sociocultural de apoyo a las hidroeléctricas, poco explorado, pero muy significativo.

Noticias

Presentan Reporte que mide cumplimiento de promesas en materia ambiental 2018-2020

03-08-2020

De acuerdo al reporte de GAMA UC, de los 90 compromisos de gobierno en materia ambiental existentes hasta el 30 de Julio de 2020, 27 se consideran cumplidos, 46 en...

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