Albert S. Chen

Albert S. Chen
University of Exeter | UoE · College of Engineering, Mathematics and Physical Sciences

BSc, PhD

About

147
Publications
85,349
Reads
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3,330
Citations
Introduction
I am an Associate Professor at the Centre for Water Systems (CWS), University of Exeter with over 20 years of experience in Water and Human Environment studies. My research interests include water resources, hydrology and hydraulic modelling, urban drainage, flood forecasting and early warning, digital innovation, water-food-energy-ecosystems nexus, climate change impact to critical infrastructure, prediction of water-borne disease, hazard impact assessment, mitigation and resilience.
Additional affiliations
January 2006 - present
University of Exeter
Position
  • Senior Researcher
Education
September 1997 - January 2002
National Taiwan University
Field of study
  • Department of Bioenvironmental Systems Engineering
September 1989 - June 1993
National Taiwan University
Field of study
  • Department of Agricultural Engineering

Publications

Publications (147)
Article
Rapid population growth, urbanization and high-intensity human activities cause a multitude of extremely serious environmental problems all over the world [...]
Article
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This paper aims to improve the understanding of environmental and socioeconomic drivers on land use change (LUC) through public participation (PP), and provide recommendations for long-term policy making to support sustainable land use management. Public participation (PP) was necessary to help understand and address the problem and concerns of sta...
Article
Wastewater surveillance has been widely implemented for monitoring of SARS-CoV-2 during the global COVID-19 pandemic, and near-to-source monitoring is of particular interest for outbreak management in discrete populations. However, variation in population size poses a challenge to the triggering of public health interventions using wastewater SARS-...
Article
This study provides an assessment of changes in mean and extreme climate in northeast Thailand, focusing on the near‐future period (2021‐2050). Spatiotemporal changes in climate extremes and return values are investigated compared to 1981‐2010. Climate model‐related uncertainties are quantified using 14 models from the Coupled Model Intercomparison...
Article
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A new overland-gully-sewer (2D-1D-1D) urban inundation modeling is herein proposed. The authors have developed an integrated approach for overland-gully-sewer urban inundation simulations, which comprises 2D overland flow modeling (2DOFM) by solving the two-dimensional shallow water equations (2D-NISWEs), one-dimensional gully flow modeling (1D-GFM...
Preprint
Full-text available
This paper aims to determine whether population normalisation significantly alters the SARS-CoV-2 trends revealed by wastewater-based epidemiology, and whether it is beneficial and/or necessary to provide an understanding of prevalence from wastewater SARS-CoV-2 concentrations. It uses wastewater SARS-CoV-2 data collected from 394 sampling sites, a...
Preprint
Full-text available
Wastewater surveillance has been widely implemented for monitoring of SARS-CoV-2 during the global COVID-19 pandemic, and near-to-source monitoring is of particular interest for outbreak management in discrete populations. However, variation in population size poses a challenge to the triggering of public health interventions using wastewater SARS-...
Article
Full-text available
Study region A coupled framework, linking subsurface flow and surface hydrodynamics, is developed and applied to a real-world case study of Pingtung coastal aquifer in southwest of Taiwan, in East Asia. Study focus FEFLOW is adopted to develop a 3-D variable density and transient groundwater model of the Pingtung shallow aquifer lying 250 m below...
Article
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In this article, we evaluate property flood resilience (PFR) to manage pluvial and combined tidal/ fluvial flood risks. We achieve this by evaluating flood risk and intervention targeting strategies across a case study in Bristol (UK) using data types generally available for preliminary option assessment. We investigate opportunities for mitigating...
Article
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The purpose of this present document prepared by the Policy Action Group of the ICT4Water cluster is to highlight those possibilities that a more digitalised water industry can offer in support of the revision of the Urban Wastewater Treatment Directive, the implementation of the revised EU Drinking Water Directive and the achievement of those goal...
Article
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The optimized green-grey infrastructures are promising solutions to combat the urban flood and water quality problems which have been severe owe to the increasing urbanization and climate change. However, the focusses in existing researches have been either on finding the best strategy by scenario analysis method or optimal design of LID practices...
Article
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As the global climate change and the rapid progress of urbanization, the frequent occurrence of flooding disasters and non-point source pollution seriously threaten the sustainable development of modern cities. To alleviate these problems, China started to pilot construction of the "Sponge City" (SPC). Over a decade, it has attracted public attenti...
Article
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A three-dimensional variable-density finite element model was developed to study the combined effects of overabstraction and seawater intrusion in the Pingtung Plain coastal aquifer system in Taiwan. The model was generated in different layers to represent the three aquifers and two aquitards. Twenty-five multilayer pumping wells were assigned to a...
Article
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Expanding populations and increased urbanisation are causing a strain on cities worldwide as they become more frequently and more severely affected by extreme weather conditions. Critical services and infrastructure are feeling increasing pressure to be maintained in a sustainable way under these combined stresses. Methods to better cope with these...
Article
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In recent years, Sponge City has gained significant interests as a way of urban water management. The kernel of Sponge City is to develop a coupled green-grey-blue system which consists of green infrastructure at the source, grey infrastructure (i.e. drainage system) at the midway and receiving water bodies as the blue part at the terminal. However...
Article
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This paper outlines the work carried out within the RESCCUE (RESilience to cope with Climate Change in Urban ArEas) project that is, in part, examining the impacts of climate-driven hazards on critical services and infrastructures within cities. In this paper, we examined the methods employed to assess the impacts of pluvial flooding events for var...
Article
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This study proposes a modelling framework of integrated one-dimensional (1D) and two-dimensional (2D) hydrodynamic modelling to evaluate the effectiveness of sponge city construction at community scale. Through a case study in Zhuhai, we integrate Stormwater Management Model (SWMM) and Cellular Automata Dual-DraInagE Simulation (CADDIES) 2D model t...
Article
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The design, construction and maintenance of Critical Infrastructures (CI) is commonly based on standards that are rigorous, so as to withstand any climate or weather-linked pressures. However, due to climate change, climate characteristics may shift, resulting in increased frequency/magnitude of potential failures, or exposure to new unknown risks....
Article
Full-text available
Critical infrastructures (CIs) are commonly designed, built and maintained based on rigorous standards in order to withstand the climate and weather-related pressures. However, shifts in climate characteristics may result in increases of the magnitude and frequency of potential risks, or expose specific CI to new or increased risks not previously c...
Cover Page
A fantastic NERC GW4 DTP opportunity to study on to study #NearRealTime #Multiscale #Hybrid #SurfaceWater #Flooding #Risk #Forecasting http://www.exeter.ac.uk/studying/funding/award/?id=3674 Apply before 06 Jan 2020! #NERC #PhD #scholarship #GW4Alliance #Gw4Water #CWS #CEH #UniofExeter
Conference Paper
Taiwan was hit by Typhoon Morakot in August 2009 resulting in significant damage and losses. About two-third of the counties were affected among which, Kaohsiung City and Pingtung counties located in Kaoping River basin were damaged strongly [1]. Overtopping of the Kaoping river banks due to river inundation could increase the vulnerability of thes...
Conference Paper
Introduction Taiwan was hit by Typhoon Morakot in August 2009 resulting in significant damage and losses. About two-third of the counties were affected among which, Kaohsiung City and Pingtung counties located in Kaoping River basin were damaged strongly [1]. Overtopping of the Kaoping river banks due to river inundation could increase the vulnerab...
Article
Full-text available
Flooding can affect every aspect of our lives and road transportation is not an exception. However, the interaction between floods and transportation was not investigated closely in the past. As transportation is the lifeline of any economy, it is essential to analyse potential dangers and threads that can lead to network capacity restraints. Consi...
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Recent surface-water and flash floods have caused millions of pounds worth of damage in the UK. These events form rapidly and are difficult to predict due to their short-lived and localised nature. The interdisciplinary Flooding From Intense Rainfall (FFIR) programme investigated the feasibility of enhancing the integration of an end-to-end forecas...
Chapter
Transportation is essential for the normal flow of the economy because it is responsible for the movement of people and goods to planned locations. Therefore, traffic disruptions can have detrimental effects on multiple services. Road transportation is vulnerable to many threads, but flooding has the potential to lead to significant road network ca...
Article
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Flood prevention in mixed urban–rural environments has become a greater concern due to climate change. It is a complex task requiring both efficient management of resources and the involvement of multiple stakeholders from diverse backgrounds. As Serious Games (games used for purposes other than mere entertainment) have emerged as an effective mean...
Article
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Developing an adaptation option is challenging for long-term engineering decisions due to uncertain future climatic conditions; this is especially true for urban flood risk management. This study develops a real options approach to assess adaptation options in urban surface water flood risk management under climate change. This approach is demonstr...
Article
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The article “Assessing real options in urban surface water flood risk management under climate change”, written by Haixing Liu, Yuntao Wang, Chi Zhang, Albert S. Chen and Guangtao Fu, was originally published electronically on the publisher’s internet portal (currently SpringerLink) on 21 May 2018 without open access.
Conference Paper
Critical Infrastructures (CIs) are commonly designed, built and maintained based on rigorous standards in order to withstand the climate and weather-related pressures. However, shifts in climate characteristics may result in increases of the magnitude and frequency of potential risks, or expose specific CI to new or increased risks not previously c...
Article
To better understand the impacts of flooding such that authorities can plan for adapting measures to cope with future scenarios, we have developed a modified Drivers-Pressures-State-Impact-Response (DPSIR) framework to allow policy makers to evaluate strategies for improving flood resilience in cities. We showed that this framework proved an effect...
Conference Paper
Critical Infrastructures (CIs) are commonly designed, built and maintained based on rigorous standards to withstand the climate and weather-related pressures. However, shifts in climate characteristics may result in increases of the magnitude and frequency of potential risks, or expose specific CI to new or increased risks not previously considered...
Article
Full-text available
High accuracy models are required for informed decision making in urban flood management. This paper develops a new holistic framework for using information collected from multiple sources for setting parameters of a 2D flood model. This illustrates the importance of identifying key urban features from the terrain data for capturing high resolution...
Article
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In coupled sewer and surface flood modelling approaches, the flow process in gullies is often ignored although the overland flow is drained to sewer network via inlets and gullies. Therefore, the flow entering inlets is transferred to the sewer network immediately, which may lead to a different flood estimation than the reality. In this paper, we c...
Article
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Surface-water flooding in urban areas has become a pressing issue due to changing precipitation patterns, expanding urban areas and ageing drainage infrastructure. Selection of flood-management options for widespread implementation using quantitative performance measures is both technically and computationally demanding, which limits the evidence a...
Article
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Impacts from floods in urban areas can be diverse and wide ranging. These can include the loss of human life, infrastructure and property damages, as well as other kinds of nuisance and inconvenience to urban life. Hence, the ability to identify and quantify wider ranging effects from floods is of the utmost importance to urban flood managers and i...
Article
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Current approaches to risk management place insufficient emphasis on the system knowledge available to the assessor, particularly in respect of the dynamic behavior of the system under threat, the role of human agents (HAs), and the knowledge available to those agents. In this article, we address the second of these issues. We are concerned with a...
Article
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In this study, we considered the relationships between different types of CI and services to simulate possible cascading effects during extreme hazard conditions brought on by climate change and how to analyse impacts with limited data resources. An area in central Bristol, UK, was used as the case study to investigate the interdependencies among s...
Article
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Torbay, located in South West England, UK, is one of the Case Studies on the EU-funded project EU-CIRCLE, which is aimed at enhancing resilience of Critical Infrastructures (CI) to natural hazards. The region includes three urban centres (Torquay, Paignton and Brixham) and hosts more than 3 million tourists every year that contribute over £450 mill...
Article
Urbanization has become a global trend under the combined influence of population growth, socioeconomic development, and globalization. Even though recent urban planning in London has been more deliberate, the relationships between climate change and urban growth in the context of economic geography are still somewhat unclear. This study relies on...
Conference Paper
Full-text available
In this study we explore the potential advantages of the hexagonal meshes for cellular automata-based flood modelling applications. We conduct a set of flood simulations and compare the quality of the modelling results in terms of water depth and flow velocity for the square and hexagonal cell geometries. The results showed that water depths obtain...
Article
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In this study we compared three overland flow models, a full dynamic model (shallow water equation), a local inertial equations model (gravity wave model), and a diffusive wave model (parallel diffusive wave model). The three models are coupled with the same full dynamic sewer network model (SIPSON). We adopted the volume exchange between sewer and...
Conference Paper
This paper investigates the approaches to consider infiltration and drainage capacity in urban flood modelling. A hydrodynamic model WCA2D is used to simulate surface water flood inundation under different rainfalls. Two approaches were considered and compared to represent the soil infiltration and urban drainage network capacity, i.e. rainfall ded...
Conference Paper
In the paper, we present an innovative application that allows stakeholders to interactively visualise the evolution of flooding and its impact to critical infrastructure using a standard web browser without any other software requirement. The system can demonstrate not only the maximum flood extent on a plain map, but also spatiotemporal varied in...
Conference Paper
The process of flood water flowing around buildings was investigated numerically and experimentally. Numerical simulations were performed using TVD solver. Experiments with several buildings were conducted. Measurements of water level were obtained using pressure gauges and ultrasonic wave gauges. Comparisons of numerical results against the experi...
Conference Paper
This paper is looking at methods for quantifying both direct and indirect impacts upon critical infrastructures within an urban environment. The simulations carried out in this paper therefore looks to analyse the impacts of flooding from pipe burst scenarios and how the flooding events effects electricity supply and road access to key critical inf...
Article
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There is an emerging abundance of freely available high resolution (one meter or less) LIDAR data due to the advent of remote sensing, which enables wider applications of detailed flood risk modelling and analysis. Digital terrain surface data often comes in raster form, i.e., a square regular grid, and often requires conversion into a specific com...
Article
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This study presents experimental results of velocity distribution and water depth at specific locations obtained from simplified urban district experiments accounting for the effect of building blockage. Laboratory experiments are performed inside a flume (0.8m×0.8m×18m) for various arrangements of pervious and impervious building blocks. The Digit...
Article
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To achieve fast flood modelling for large scale problems, a two-dimensional cellular automata based model has been developed in this study. This model uses simple transition rules and a weight-based system instead of solving complex shallow water equations. The cellular automata feature allows the proposed model to be implemented in a parallel comp...
Presentation
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Presentation to the CAMUSS 2016 conference held in Québec. Presents early results of the hexagonal grid implementation of the rapid flood model CAFlood using the CADDIES cellular automata framework.
Article
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In this paper, a set of GIS-based tools is presented that combines information from hydraulic modelling results, spatially varied object attributes and damage functions to assess flood damage. They can directly process the outputs of hydraulic modelling packages to calculate the direct tangible damage, the risk to life, and the health impact of ind...