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The implementation of sustainable urban drainage systems (SUDS) is increasing due to their advantages, which transcend runoff control. As a result, it is important to find the appropriate SUDS locations to maximize the benefits for the watershed. This study develops a multiscale methodology for consolidated urban areas that allows the analysis of environmental, social, and economic aspects of SUDS implementation according to multiple objectives (i.e., runoff management, water quality improvements, and amenity generation). This methodology includes three scales: (a) citywide, (b) local, and (c) microscale. The citywide scale involves the definition of objectives through workshops with the participation of the main stakeholders, and the development of spatial analyses to identify (1) priority urban drainage sub-catchments: areas that need intervention, and (2) strategic urban drainage sub-catchments: zones with the opportunity to integrate SUDS due the presence of natural elements or future urban redevelopment plans. At a local scale, prospective areas are analyzed to establish the potential of SUDS implementation. Microscale comprises the use of the results from the previous scales to identify the best SUDS placement. In the latter scale, the SUDS types and treatment trains are selected. The methodology was applied to the city of Bogotá (Colombia) with a population of nearly seven million inhabitants living in an area of approximately 400 km2. Results include: (a) The identification of priority urban drainage sub-catchments, where the implementation of SUDS could bring greater benefits; (b) the determination of strategic urban drainage sub-catchments considering Bogotá’s future urban redevelopment plans, and green and blue-green corridors; and (c) the evaluation of SUDS suitability for public and private areas. We found that the most suitable SUDS types for public areas in Bogotá are tree boxes, cisterns, bioretention zones, green swales, extended dry detention basins, and infiltration trenches, while for private residential areas they are rain barrels, tree boxes, green roofs, and green swales.
Sara Lucía Jiménez Ariza; José Alejandro Martínez; Andrés Felipe Muñoz; Juan Pablo Quijano; Juan Pablo Rodríguez; Luis Alejandro Camacho; Mario Díaz-Granados. A Multicriteria Planning Framework to Locate and Select Sustainable Urban Drainage Systems (SUDS) in Consolidated Urban Areas. Sustainability 2019, 11, 2312 .
AMA StyleSara Lucía Jiménez Ariza, José Alejandro Martínez, Andrés Felipe Muñoz, Juan Pablo Quijano, Juan Pablo Rodríguez, Luis Alejandro Camacho, Mario Díaz-Granados. A Multicriteria Planning Framework to Locate and Select Sustainable Urban Drainage Systems (SUDS) in Consolidated Urban Areas. Sustainability. 2019; 11 (8):2312.
Chicago/Turabian StyleSara Lucía Jiménez Ariza; José Alejandro Martínez; Andrés Felipe Muñoz; Juan Pablo Quijano; Juan Pablo Rodríguez; Luis Alejandro Camacho; Mario Díaz-Granados. 2019. "A Multicriteria Planning Framework to Locate and Select Sustainable Urban Drainage Systems (SUDS) in Consolidated Urban Areas." Sustainability 11, no. 8: 2312.
Cities in developing countries frequently suffer from poor water quality. Thus, the ability to make informed decisions on the current state of urban water quality, as well as on rehabilitating or implementing new infrastructure, is necessary. Therefore, the authors present a stochastic and dynamic water quality model for cities by integrating existing models for surface water quality, wastewater generation, and drainage routing. The purpose is to assess the water quality state of urban systems and to explore suitability of treatment scenarios. The model can also be useful for urban water planners in developed countries, emphasizing how sustainability is central to assimilative capacity-based water quality modeling. The integrated model is implemented in the Bogotá River, Colombia, to analyze how wastewater discharges in the upper basin can affect the water treatability in a downstream drinking water treatment plant (DWTP) that serves approximately 3 million people. The authors also analyze how the lack of wastewater treatment in the city of Bogotá influences the water quality of the Bogotá River middle basin. The results indicate that pathogens, ammonium, and total suspended solids exceed national and international standards at the DWTP. Additionally, wastewater discharges from Bogotá into the river increase pollutant concentrations to significantly exceed standard limits. To explore solutions to these current problems, the authors model different scenarios consisting of wastewater treatment plants (WWTPs) for the urban rivers in the city and the Bogotá River. The analyses indicate that, in addition to regional controls, it would be necessary to implement other strategies, such as source control, to comply with regulatory standards. The application of the model demonstrates how it can be a useful tool for water management and planning in multiple settings, especially in data-limited scenarios.
Nicolás Rodríguez-Jeangros; Luis A. Camacho; Juan P. Rodríguez; John E. McCray. Integrated Urban Water Resources Model to Improve Water Quality Management in Data-Limited Cities with Application to Bogotá, Colombia. Journal of Sustainable Water in the Built Environment 2018, 4, 04017019 .
AMA StyleNicolás Rodríguez-Jeangros, Luis A. Camacho, Juan P. Rodríguez, John E. McCray. Integrated Urban Water Resources Model to Improve Water Quality Management in Data-Limited Cities with Application to Bogotá, Colombia. Journal of Sustainable Water in the Built Environment. 2018; 4 (2):04017019.
Chicago/Turabian StyleNicolás Rodríguez-Jeangros; Luis A. Camacho; Juan P. Rodríguez; John E. McCray. 2018. "Integrated Urban Water Resources Model to Improve Water Quality Management in Data-Limited Cities with Application to Bogotá, Colombia." Journal of Sustainable Water in the Built Environment 4, no. 2: 04017019.
Developing its large-scale mining industry is an economic priority for Colombia. However, national capacity to assess and manage the water resource impacts of mining is currently limited. This includes lack of baseline data, lack of suitable hydrological models and lack of frameworks for evaluating risks. Furthermore, public opposition to large scale mining is high and is a barrier to many proposed new mining projects mainly because of concerns about impacts on water resources. There are also concerns about impacts on the uplands that are important water sources, particularly the páramo ecosystem. This paper argues the case for a new framework for Strategic Assessment of Regional Water Impacts of Mining, aiming to support land use planning decisions by government for selected mining and prospective mining regions. The proposed framework is modelled on the Australian Government’s Bioregional Assessments program, converted into seven stages plus supporting activities that meet the Colombian development context. The seven stages are: (1) Contextual information; (2) Scenario definition; (3) Risk scoping; (4) Model development; (5) Risk analysis; (6) Database development; and (7) Dissemination by government to stakeholders including the general public. It is emphasised that the process and results should be transparent, the data and models publicly accessible, and dissemination aimed at all levels of expertise.
Neil McIntyre; Mario Angarita; Nicolas Fernandez; Luis A. Camacho; Jillian Pearse; Carme Huguet; Oscar Jaime Restrepo Baena; Juan Ossa-Moreno. A Framework for Assessing the Impacts of Mining Development on Regional Water Resources in Colombia. Water 2018, 10, 268 .
AMA StyleNeil McIntyre, Mario Angarita, Nicolas Fernandez, Luis A. Camacho, Jillian Pearse, Carme Huguet, Oscar Jaime Restrepo Baena, Juan Ossa-Moreno. A Framework for Assessing the Impacts of Mining Development on Regional Water Resources in Colombia. Water. 2018; 10 (3):268.
Chicago/Turabian StyleNeil McIntyre; Mario Angarita; Nicolas Fernandez; Luis A. Camacho; Jillian Pearse; Carme Huguet; Oscar Jaime Restrepo Baena; Juan Ossa-Moreno. 2018. "A Framework for Assessing the Impacts of Mining Development on Regional Water Resources in Colombia." Water 10, no. 3: 268.
Juan Pablo Alvarado-Franco; David Castro; Nicolas Estrada; Bernardo Caicedo; Mauricio Sánchez-Silva; Luis A. Camacho; Felipe Muñoz. Quantitative-mechanistic model for assessing landslide probability and pipeline failure probability due to landslides. Engineering Geology 2017, 222, 212 -224.
AMA StyleJuan Pablo Alvarado-Franco, David Castro, Nicolas Estrada, Bernardo Caicedo, Mauricio Sánchez-Silva, Luis A. Camacho, Felipe Muñoz. Quantitative-mechanistic model for assessing landslide probability and pipeline failure probability due to landslides. Engineering Geology. 2017; 222 ():212-224.
Chicago/Turabian StyleJuan Pablo Alvarado-Franco; David Castro; Nicolas Estrada; Bernardo Caicedo; Mauricio Sánchez-Silva; Luis A. Camacho; Felipe Muñoz. 2017. "Quantitative-mechanistic model for assessing landslide probability and pipeline failure probability due to landslides." Engineering Geology 222, no. : 212-224.
The first step in developing travel time and water quality models in streams is to correctly model solute transport mechanisms. In this paper a comparison between two solute transport models is performed. The parameters of the Transient Storage model (TS) and the Aggregated Dead Zone model (ADZ) are estimated using data of thirty seven tracer experiments carried out under different discharges in five mountain streams of Colombian Los Andes. Calibration is performed with the generalized uncertainty estimation method (GLUE) based on Monte-Carlo simulations. Aspects of model parameters identifiability and model parsimony are analyzed and discussed. The TS model with four parameters shows excellent results during calibration but the model parameters present high interaction and poor identifiability. The ADZ model with two independent and clearly identifiable parameters gives sufficiently precise calibration results. As a conclusion, it is stated that the ADZ model with only two parameters is a parsimonious model that is able to represent solute transport mechanisms of advection and longitudinal dispersion in the studied mountain streams. A simple model parameter estimation methodology as a function of discharge is proposed in this work to be used in prediction mode of travel time and solute transport applications along mountain streams.
Luis A. Camacho; Ricardo A. González. Calibration and predictive ability analysis of longitudinal solute transport models in mountain streams. Environmental Fluid Mechanics 2008, 8, 597 -604.
AMA StyleLuis A. Camacho, Ricardo A. González. Calibration and predictive ability analysis of longitudinal solute transport models in mountain streams. Environmental Fluid Mechanics. 2008; 8 (5-6):597-604.
Chicago/Turabian StyleLuis A. Camacho; Ricardo A. González. 2008. "Calibration and predictive ability analysis of longitudinal solute transport models in mountain streams." Environmental Fluid Mechanics 8, no. 5-6: 597-604.
The use of dynamic mathematical models to simulate the behaviour of environmental systems is common practice. However, the output of these models remains uncertain, despite their widespread use and long history of application. This uncertainty arises, amongst other factors, from errors in the data, randomness in natural processes, incorrect assumptions in the model structure with respect to the processes taking place in the natural system, and the inability of calibration procedures to unambiguously identify an optimal parameter set to represent the system under investigation. The latter two problems may be caused by the inability of the calibration procedure to retrieve sufficient information from the model residuals. In this paper, a new approach called Dynamic Identifiability Analysis is presented in order to partly overcome this limitation. A case study shows how the proposed methodology can be applied to increase the identifiability of parameters of a river solute transport model.
Thorsten Wagener; Luis A. Camacho; Howard S. Wheater. Dynamic identifiability analysis of the transient storage model for solute transport in rivers. Journal of Hydroinformatics 2002, 4, 199 -211.
AMA StyleThorsten Wagener, Luis A. Camacho, Howard S. Wheater. Dynamic identifiability analysis of the transient storage model for solute transport in rivers. Journal of Hydroinformatics. 2002; 4 (3):199-211.
Chicago/Turabian StyleThorsten Wagener; Luis A. Camacho; Howard S. Wheater. 2002. "Dynamic identifiability analysis of the transient storage model for solute transport in rivers." Journal of Hydroinformatics 4, no. 3: 199-211.
Matthew J. Lees; Steven Chapra; Luis A. Camacho. On the relationship of transient storage and aggregated dead zone models of longitudinal solute transport in streams. Water Resources Research 2000, 36, 213 -224.
AMA StyleMatthew J. Lees, Steven Chapra, Luis A. Camacho. On the relationship of transient storage and aggregated dead zone models of longitudinal solute transport in streams. Water Resources Research. 2000; 36 (1):213-224.
Chicago/Turabian StyleMatthew J. Lees; Steven Chapra; Luis A. Camacho. 2000. "On the relationship of transient storage and aggregated dead zone models of longitudinal solute transport in streams." Water Resources Research 36, no. 1: 213-224.
An extension to the two-parameter multilinear discrete cascade model for channel routing is presented. The linear sub-component of the extended three-parameter model combines a discrete cascade with a conceptual discrete linear channel element characterised by a time-delay parameter. The inclusion of this explicit advective time-delay makes the model particularly suitable for forecasting applications. The time-variable parameters are related to physical channel characteristics by a method of moments utilising the generalised linear response of a uniform channel of any shape and any friction law. The utility of the extended model is examined through comparison with results of the multilinear model and the solutions of the full St Venant equations for various hydraulic conditions and channel shapes. The results show that without sacrificing model simplicity, the additional degree of freedom of the extended model enables better prediction of the flood propagation process described by the full equations. Additionally, it is found that the linear approximation of the proposed mathematical representation gives sufficiently accurate predictions over short distances to allow practical utilisation of powerful methods of system parameter estimation. Good results were obtained in uniform channels characterised by open looped-rating curves at the inlet and outlet boundaries. However, the downstream boundary condition considered, based on the Manning equation, is only valid where no hydraulic structures or physical channel changes occur at the downstream location, or where backwater effects due to tides, tributaries or critical control sections do not affect the hydraulic response at the boundary.
L.A Camacho; M.J Lees. Multilinear discrete lag-cascade model for channel routing. Journal of Hydrology 1999, 226, 30 -47.
AMA StyleL.A Camacho, M.J Lees. Multilinear discrete lag-cascade model for channel routing. Journal of Hydrology. 1999; 226 (1-2):30-47.
Chicago/Turabian StyleL.A Camacho; M.J Lees. 1999. "Multilinear discrete lag-cascade model for channel routing." Journal of Hydrology 226, no. 1-2: 30-47.
A modification to the well-known water quality model "Quality Simulation Along River Systems" (QUASAR) is presented, extending its utility to real-time forecasting applications such as the management and control of pollution incidents. Two aggregated dead-zone (ADZ) parameters, namely time delay and dispersive fraction, are incorporated into the existing model formulation, extending the current continuously stirred tank reactor based model processes to account for advective and active mixing volume dispersive processes. The resulting river water quality model combines the strengths of the QUASAR model, which has proven non-conservative pollutant modelling capabilities, with the accurate advection and dispersion characterisation of the ADZ model. A discrete-time mathematical representation of the governing equations is developed that enables efficient system identification methods of parameter estimation to be utilised. The enhanced water quality model and associated methods of parameter estimation are validated using data from tracer experiments conducted on the River Mimram. The revised model produces accurate predictions of observed concentration-time curves for conservative substances.
M. J. Lees; Luis A. Camacho; P. Whitehead. Extension of the QUASAR river water quality model to incorporate dead-zone mixing. Hydrology and Earth System Sciences 1998, 2, 353 -365.
AMA StyleM. J. Lees, Luis A. Camacho, P. Whitehead. Extension of the QUASAR river water quality model to incorporate dead-zone mixing. Hydrology and Earth System Sciences. 1998; 2 (2/3):353-365.
Chicago/Turabian StyleM. J. Lees; Luis A. Camacho; P. Whitehead. 1998. "Extension of the QUASAR river water quality model to incorporate dead-zone mixing." Hydrology and Earth System Sciences 2, no. 2/3: 353-365.