Skip to main content
Ref ID: 26703
Ref Type: Journal Article
Authors: Penny, Dan
Zachreson, Cameron
Fletcher, Roland
Lau, David
Lizier, Joseph T.
Fischer, Nicholas
Evans, Damian
Pottier, Cristophe
Prokopenko, Mikhail
Title: The demise of Angkor: systemic vulnerability of urban infrastructure to climatic variations
Date: 2018
Source: Science Advances
DOI: 10.1126/sciadv.aau4029
Abstract: Complex infrastructural networks provide critical services to cities but can be vulnerable to external stresses, including climatic variability. This vulnerability has also challenged past urban settlements, but its role in cases of historic urban demise has not been precisely documented. We transform archeological data from the medieval Cambodian city of Angkor into a numerical model that allows us to quantify topological damage to critical urban infrastructure resulting from climatic variability. Our model reveals unstable behavior in which extensive and cascading damage to infrastructure occurs in response to flooding within Angkor’s urban water management system. The likelihood and extent of the cascading failure abruptly grow with the magnitude of flooding relative to normal flows in the system. Our results support the hypothesis that systemic infrastructural vulnerability, coupled with abrupt climatic variation, contributed to the demise of the city. The factors behind Angkor’s demise are analogous to challenges faced by modern urban communities struggling with complex critical infrastructure.
Date Created: 11/13/2018
Volume: 4
Number: 10
Page Start: eaau4029