Entries by Daria Korsun

First Symposium on the Cultures of Coastal Adaptation

The Adaptation and Social Learning group organized the first (virtual) Symposium on the Cultures of Coastal Adaptation that was held on the 22nd and 23rd September. The symposium made a first step towards developing a novel, interdisciplinary, empirical social science perspective on the various cultures of coastal adaptation that is currently missing in discussions of the […]

Uncertainty and Bias in Global to Regional Scale Assessments of Current and Future Coastal Flood Risk

This study provides a literature-based comparative assessment of uncertainties and biases in global to world-regional scale assessments of current and future coastal flood risks, considering mean and extreme sea-level hazards, the propagation of these into the floodplain, people and coastal assets exposed, and their vulnerability. Globally, by far the largest bias is introduced by not […]

Integrating new sea‐level scenarios into coastal risk and adaptation assessments: An ongoing process

The release of new and updated sea‐level rise (SLR) information, such as from the Intergovernmental Panel on Climate Change (IPCC) Assessment Reports, needs to be better anticipated in coastal risk and adaptation assessments. This requires risk and adaptation assessments to be regularly reviewed and updated as needed, reflecting the new information but retaining useful information […]

Unravelling the Importance of Uncertainties in Global-Scale Coastal Flood Risk Assessments under Sea Level Rise

Global scale assessments of coastal flood damage and adaptation costs under 21st century sea-level rise are associated with a wide range of uncertainties, including those in future projections of socioeconomic development (shared socioeconomic pathways (SSP) scenarios), of greenhouse gas concentrations (RCP scenarios), and of sea-level rise at regional scale (RSLR), as well as structural uncertainties […]

What drives relocation policies in the Maldives?

The predominant responses to rising sea levels are in situ adaptations. However, increasing rates of sea-level rise will render ex situ adaptations—in the form of relocations—inevitable in some low-lying coastal zones. Particularly small island states like the Maldives face this significant adaptation challenge. Here, government action is necessary to move vulnerable communities out of flood-prone […]

A framework for assessing the potential effectiveness of adaptation policies: Coastal risks and sea-level rise in the Maldives

Effective policies that integrate climate change considerations are crucial for successful adaptation to increasing climate risks. While there is an abundant normative literature proposing potential effective ways to adapt, there is a lack of empirical literature on current risk and adaptation policy and its potential effectiveness. Studying existing policies can help to reveal existing constraints, […]

Future urban development exacerbates coastal exposure in the Mediterranean

Changes in the spatial patterns and rate of urban development will be one of the main determinants of future coastal flood risk. Existing spatial projections of urban extent are, however, often available at coarse spatial resolutions, local geographical scales or for short time horizons, which limits their suitability for broad-scale coastal flood impact assessments. Here, […]

New Paper on Projections of global-scale extreme sea levels and resulting episodic coastal flooding over the 21st Century

Global models of tide, storm surge, and wave setup are used to obtain projections of episodic coastal flooding over the coming century. The models are extensively validated against tide gauge data and the impact of uncertainties and assumptions on projections estimated in detail. Global “hotspots” where there is projected to be a significant change in […]

Multilevel governance of coastal flood risk reduction: A public finance perspective

Coastal flood risk reduction (CFRR) presents a significant public funding challenge, due to its high upfront costs and long-term benefits, and this challenge will increase with future sea-level rise. The funding challenge necessarily involves multiple levels of government, due to the regional nature of CFRR public goods involved. Yet there has been little research comparing […]