SciELO - Scientific Electronic Library Online

 
vol.38 issue5Characteristics of local groundwater recharge cycles in South African semi-arid hard rock terrains: Rainfall-groundwater interactionA short-range weather prediction system for South Africa based on a multi-model approach author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Water SA

On-line version ISSN 0378-4738

Abstract

FRIEDRICH, Elena  and  KRETZINGER, Dale. Vulnerability of wastewater infrastructure of coastal cities to sea level rise: a South African case study. Water SA [online]. 2012, vol.38, n.5, pp. 755-764. ISSN 0378-4738.

Sea-level rise is one of the consequences of global warming that has the potential to affect the infrastructure of coastal urban areas. In this context, it is important to perform vulnerability assessments in order to understand how this infrastructure may be at risk, and, if necessary, adapt and maintain functionality of infrastructure systems. This study investigates the vulnerability of the wastewater collection and disposal infrastructure (i.e. pipelines and manholes, pumping stations and wastewater treatment plants) to sea-level rise in eThekwini Municipality, South Africa. By using geographical information systems (GIS) and a multi-criteria analysis considering elevation, operational capacity and connectivity, a scale of vulnerability was established and the most vulnerable infrastructural elements were identified in the municipality. These should be prioritised for detailed monitoring and adaptive interventions in order to maintain the functionality of the wastewater system as sea level is predicted to rise. As such this study presents a model of how vulnerability of wastewater systems can be evaluated in coastal cities.

Keywords : climate change adaptation; urban vulnerability; wastewater infrastructure.

        · text in English     · English ( pdf )