The utility of the concept of resiliency as a paradigm for managing society's ability to resist, absorb, and recover from extreme events is dependent upon the ability to evaluate a community's resilience and to assess the potential impacts of intentional and unintentional interventions. A framework for developing and using resilience metrics is presented. The critical components of resilience for three diverse Atlantic coastal communities subject to potential catastrophic coastal flooding are developed, described, and compared using this framework. The analysis demonstrates that, although the three areas face a common threat, they should adopt different resilience enhancing strategies that are determined by local structural, economic, and social conditions.
Most UK coastal flooding caused by moderate, not extreme storms
Scientists at the NOC and the University of Southampton have found that the majority of instances of coastal flooding around the United Kingdom in the last 100 years have been due to moderate storm events combined with high spring tides, rather than extreme storms. Researchers have undertaken one of the most detailed assessments of extreme sea level and coastal flooding ever carried out for the UK. Their findings are published in Nature Research journal Scientific Data. The team examined exceptionally high sea...
What is a Flood Risk Assessment?
Flood Risk Assessments (FRA) are becoming a very important part of the planning permission process. It interlocks with other areas of the planning process, and could cause weeks or months of delays if not done from the beginning. But what is a Flood Risk Assessment? A Flood Risk Assessment is a series of tests that are carried out to assess the level of flood risk of a given location. The assessment will check for flooding caused by groundwater, surface water, artificial water, rivers, streams, sewers and...
Aquaculture induced erosion of tropical coastlines throws coastal communities back into poverty
Shallow tropical coastlines harbour unique mangrove ecosystems, which support livelihoods and provide a natural barrier against coastal flooding. Non-sustainable land-use practices, such as large-scale clear cutting of mangroves for aquaculture, ground water withdrawal and alteration of river flows, result in rapid subsidence. The collapse of aquaculture production, due to pollution and disease, is followed by coastal erosion, damage to infrastructure, intrusion of salt water and coastal flooding. Standard...
Population vulnerability to storm surge flooding in coastal Virginia, U.S.A.
This study aims to assess the vulnerability of populations to storm surge flooding in 12 coastal localities of Virginia, U.S.A. Population vulnerability is assessed by way of three physical factors (elevation, slope, and storm surge category), three built‐up components (road availability, access to hospitals, and access to shelters), and three household conditions (storm preparedness, financial constraints to recover from severe weather events, and health fragility). Fuzzy analysis is used to generate maps...
Mangroves for coastal defence
The role of mangroves in protecting our coasts against natural hazards such as storms, tsunamis and coastal erosion has been widely promoted. But the supposed coastal protection services of mangroves have also been subject to debate. The Nature Conservancy and Wetlands International together with the University of Cambridge set out to map the current state of knowledge about the role of mangroves in coastal defence and put the different findings and views in perspective. The conclusion is that mangroves can...