CEDEUS

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A critical review of heat and mass transfer in vegetative roof models used in building energy and urban enviroment simulation tools
(2018) Vera Araya, Sergio Eduardo; Pinto, Camilo; Tabares Velasco, Paulo Cesar; Bustamante Gómez, Waldo; CEDEUS (Chile)
A flexible and time-efficient schedule-based communication tool for integrated lighting and thermal simulations of spaces with controlled artificial lighting and complex fenestration systems
(2016) Vera Araya, Sergio Eduardo; Bustamante Gómez, Waldo; Molina, G.; Uribe, D.; CEDEUS (Chile)
A long panel survey to elicit variation in preferences and attitudes in the choice of electric vehicles
(2014) Jensen, A.; Cherchi, E.; Ortúzar Salas, Juan de Dios; CEDEUS (Chile)
A New Method to Determine How Compaction Affects Water and Heat Transport in Green Roof Substrates
(2019) Victoria Sandoval; Suarez Poch, Francisco; CEDEUS (Chile)
A new methodology for source apportionment of gaseous industrial emissions
(2023) Jorquera, Héctor; Villalobos, Ana María; CEDEUS (Chile)
Air quality modeling (AQM) is often used to investigate gaseous pollution around industrial zones. However, this methodology requires accurate emission inventories, unbiased AQM algorithms and realistic boundary conditions. We introduce a new methodology for source apportionment of industrial gaseous emissions, which is based on a fuzzy clustering of ambient concentrations, along with a standard AQM approach. First, by applying fuzzy clustering, ambient concentration is expressed as a sum of non-negative contributions — each corresponding to a specific spatiotemporal pattern (STP); we denote this method as FUSTA (FUzzy SpatioTemporal Apportionment). Second, AQM of the major industrial emissions in the study zone generates another set of STP. By comparing both STP sets, all major source contributions resolved by FUSTA are identified, so a source apportionment is achieved. The uncertainty in FUSTA results may be estimated by comparing results for different numbers of clusters. We have applied FUSTA in an industrial zone in central Chile, obtaining the contributions from major sources of ambient SO2: a thermal power plant complex and a copper smelter, and other contributions from local and regional sources (outside the AQM domain). The methodology also identifies SO2 episodes associated to emissions from the copper smelter.
Accessibility disturbances to the biodiversity of urban wetlands due to built environment
(2022) Rojas Quezada, Carolina Alejandra; Sepúlveda Zúñiga, Einer Alexander; Jorquera Guajardo, Felipe Ignacio; Munizaga, Juan; Pino, Joan; CEDEUS (Chile)
Air pollution and environmental epidemiological evidence in Chile: alerts for decision-makers and citizens
(2023) Cortés Arancibia, Sandra; CEDEUS (Chile)
Air pollution in Chile presents unique challenges, exacerbated by inequalities and geographical and climatic diversity. Current policies have not succeeded in aligning air quality with international and national standards, nor have they significantly mitigated public health impacts, despite being more advanced than those in other Latin American countries. The evidence on the health damages caused by air pollution is compelling, showing harmful acute and chronic effects across various life stages. Yet, current measures do not effectively reduce exposure to pollutants. The monitoring network, which reports data from stationary and mobile sources, does not always detect early fugitive emissions and is limited to regulated pollutants, leaving areas without adequate monitoring coverage and without management plans for critical episodes outside of autumn and winter and for a reduced number of pollutants. In the context of climate change, which increases the frequency of forest fires, Chile is experiencing a deterioration of air quality, highlighting the need to expand critical episode management beyond the current Air Pollution Prevention and/or Atmospheric Decontamination Plans. Integrated intersectoral plans need to be improved and extended to address the high exposure to pollutants, due to the large number of people exposed, and a broad population health risks, including quality of life. Decarbonisation by 2040 based on the Sustainable Development Goals is an important pillar of the strategy, but a public debate is needed to establish additional actions for addressing environmental injustice, improving equity and reducing current exposure to air pollutants.
Ambient particulate matter in Santiago, Chile : 1989-2018 : A tale of two size fractions
(2020) Jorquera, Héctor; CEDEUS (Chile)
Ambient PM10 impacts brought by the extreme flooding event of March 24-26, 2015, in Copiapo, Chile
(2018) Jorquera, Héctor; Maria Villalobos, Ana; Barraza Saavedra, Francisco Javier; CEDEUS (Chile)
An integrated analysis of the March 2015 Atacama floods
(2016) Otárola, S.; Castro L.; Gironás León, Jorge Alfredo; Cienfuegos Carrasco, Rodrigo Alberto; Mao, Luca; Wilcox A.; Escauriaza Mesa, Cristián Rodrigo; Agredano, Roberto; Mignot E.; Zuazo V.; CEDEUS (Chile)
An integrated thermal and lighting simulation tool to support the design process of complex fenestration systems for office buildings
(2017) Bustamante Gómez, Waldo; Uribe, Daniel; Vera Araya, Sergio Eduardo; Molina, Germán; CEDEUS (Chile)
Analysis and comparison of two vegetative roof heat and mass transfer models in three different climates
(2019) Vera Araya, Sergio Eduardo; Pinto, Camilo; Tabares Velasco, Paulo César; Molina, Germán; Flamant, Gilles; Bustamante Gómez, Waldo; Pianella, Andrea; Kincaid, Nicholas; CEDEUS (Chile)
Analysis of Net Zero Energy Buildings public policies at the residential building sector: A comparison between Chile and selected countries
(2022) Tori, F.; Bustamante Gomez, Waldo Enrique; Vera, S.; CEDEUS (Chile)
Aportes y desafíos del Sistema de Evaluación de Impacto Ambiental (SEIA) a la conservación de la biodiversidad en Chile
(Interuniversity Institute of Geography and University of Alicante, 2019) Henríquez Ruiz, Cristian Gonzalo; CEDEUS (Chile); Pontificia Universidad Católica de Chile. Instituto de Geografía
Environmental impact assessment systems are preventive management instruments whose main objective is to include environmental considerations in the processes and activities accompanying economic growth in a nation. The influence of these systems in the conservation of biodiversity is fundamental, since within the evaluation process, they enable identifying and evaluating potential environmental impacts, as well as defining reparations, compensations, or mitigations. Halting the loss of biodiversity caused by human activities and climate change is a global objective. Chile is also facing this challenge, considering its status of Biodiversity Hotspot, projections associated with climate change, and the outstanding issues that the Environmental Impact Assessment System (SEIA) shows regarding biodiversity conservation. The latest, based on the lack of strategic view when considering issues such as the territorial scope of the environmental impacts generated by the projects, under a systemic and transversal approach. This research analyses the main changes experienced since the creation of SEIA, and compares this system with other evaluation systems used in Latin America. National statistics on investment projects potentially affecting the conservation of biodiversity are given. Two issues are addressed to guide discussion of the operational changes that should be encouraged by the Chilean government, namely: 1) internalising the importance of protecting biodiversity beyond current regulations, and; 2) introducing improvements in environmental legislation that could indirectly lead to improvements in SEIA. The research concludes on the importance of strengthening the Strategic Environmental Assessment (SEA) and its integration with the SEIA, in order to encourage better project designs by including sustainability from the beginning.
Artificial intelligence in the new forms of environmental governance in the Chilean State: Towards an eco-algorithmic governance
(Wiley, 2023) Tironi, Martin; Lisboa, Diego Ignacio Rivera; CEDEUS (Chile)
One of the most popular fields of experimentation with technological solutions based on Artificial Intelligence (AI) and algorithmic systems is environmental studies, particularly as it relates to climate change. The promise of mitigating the impact of human activity on the environment through the introduction of sensor technologies has given way to a series of narratives around their role and capabilities. Focusing on the case of Environmental Intelligence, an initiative developed by the Chilean government's Superintendency for the Environment that incorporates AI into the monitoring process, we offer arguments regarding the articulation of an eco-algorithmic governmentality in which the environment is desingularized and reduced to a series of metrics associated with regulatory compliance. The operations that serve to prototype and give shape to the initiative created a series of tensions around the possibility of arriving at other forms of involvement in and understanding of the environment. This article shows how this eco-algorithmic governmentality conceptualizes the environment as an entity that can be optimized and rationalized, generating epistemic frictions with other logics of relationality and situated and terrestrial sensibility.
Atmospheres of indagation : disasters and the politics of excessiveness
(2014) TironiRodó, Manuel; CEDEUS (Chile)
La Campana-Peñuelas Biosphere Reserve in Central Chile: threats and challenges in a peri-urban transition zone
(2015) RíoLópez,Camilodel; CEDEUS (Chile)
Challenges in determining soil moisture and evaporation fluxes using distributed temperature sensing methods
(2020) Lagos, M.; Serna, J. L.; Munoz, J. F.; Suárez Poch, Francisco Ignacio; CEDEUS (Chile)
Chemical speciation and source apportionment of fine particulate matter in Santiago, Chile, 2013
(2015) Villalobos, A.; Barraza Saavedra, Francisco Javier; Jorquera, Héctor; Schauer, J.; CEDEUS (Chile)
Chilean institutional policies and multi-level agents: Challenges from the COVID-19 pandemic and carbon footprint
(2023) Bergamini Ladrón de Guevara, Kay Joaquín; Ojeda Leal, Carolina Grace; Gutiérrez, Patricia; Salazar Preece, Gonzalo; Curillán, Christian; CEDEUS (Chile)
As a result of the increasing number of multilateral agreements that Chile has signed, different sectors of consumption have become sources of emissions. In this context attempts to implement guidelines to address this issue have been made. Nevertheless, international policies such as sustainable development goals (SDG) 11–12 often generate dissonance in national and local administrations and have been approached by different instruments to reduce the effects of emissions, mostly focused on the private industrial sector. Methods: This article focuses on four of the most polluted cities in south-central Chile (Coronel, Temuco, Valdivia, and Osorno). Key agents (ministries, regional government, municipalities, and civil society) from three levels of policy development were selected at three scales (national, regional, and local) and interviewed considering three thematic axes: knowledge of carbon footprint areas (housing, heating, food, mobility, and energy), institutional governance, and adaptive changes due to COVID-19. Results: The results show that in Chile, there is a multiscale climate governance led by the Ministry of the Environment (national level), followed by the regional and local levels. Citizens are then left with few capacities, which is negatively viewed. In relation to the carbon footprint and COVID-19, it can be observed that the topic of energy was more addressed at the national and regional levels. Food and energy, followed by heating and then mobility were addressed at the communal level and in civil society. Discussion: Decision-making strategies and policies were discussed in this paper.

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