Benefits of local structural protection to mitigate torrent-related hazards.

The increasing land-use activities in European mountain regions have led to a considerable threat of natural hazards such as flash floods and debris flows in areas used for settlement purposes and economic activities. To mitigate associated losses, traditional protective measures, including check dams and retention basins, were commonly implemented by public authorities. However, due to the scarceness of public funds, efficient protection alternatives have to be developed to reduce future expenditures.

Möglichkeiten zur Minderung des Hochwasserrisikos durch Nutzung von Flutpoldern an Havel und Oder

With respect to the enormous damages floods have caused in Central Europe in the last few years (Odra 1997, Elbe 2002), the use of detention areas for reducing flood risk is of high importance in modern flood management. By the controlled flooding of sparsely populated areas with low damage potential the risk for downstream areas with higher vulnerability can be reduced. The report presents the results of a research project funded by the German Federal Ministry of Research.

Flood risk reduction by the use of retention areas at the Elbe River

The paper presents research results on flood risk mitigation by the controlled flooding of a retention area on the middle reaches of the Elbe River. The retention area consists of six large polders and the floodplain of a tributary, the Havel, and is located near the Havel's confluence with the Elbe River. The total retention volume of both the polders and the Havel floodplain amounts to approximately 250 million m3. The controlled flooding of the retention area was simulated by the use of a conceptual model and assessed economically for two flood scenarios.

Effectiveness and efficiency of early warning systems for flash-floods (EWASE)

The issue addressed within the EWASE project centres on the assessment of the effectiveness and efficiency of Early Warning Systems (EWS) for medium sized river basins prone to flash floods. The approach pursued relates the concept of risk analysis to the evaluation of strategies for flood damage prevention through early warnings. For the assessment of EWS efficiency, the reliability of forecasts will be linked to the potential damage reduction - both as a function of forecast lead time.

Agreeing on Robust Decisions: New Processes for Decision Making Under Deep Uncertainty

Investment decision making is already difficult for any diverse group of actors with different priorities and views. But the presence of deep uncertainties linked to climate change and other future conditions further challenges decision making by questioning the robustness of all purportedly optimal solutions. While decision makers can continue to use the decision metrics they have used in the past (such as net present value), alternative methodologies can improve decision processes, especially those that lead with analysis and end in agreement on decisions.

Aportaciones desde la economía de la adaptación a la toma de decisiones sobre Cambio Climático: un ejemplo para la Comunidad Autónoma del País Vasco

As a consequence of Climate Change sea level rise as well as a change in the intensity and propensity of rain are expected in the Basque Country. Valuing the costs and benefits of adapting to these changes becomes an important piece of information for the planning process. This paper develops two methodological frameworks. The first one devoted to estimating the economic impacts to urban areas of an increase in the risk of flooding.

Vulnerability of Bangladesh to Cyclones in a Changing Climate: Potential Damages and Adaptation Cost

This paper integrates information on climate change, hydrodynamic models, and geographic overlays to assess the vulnerability of coastal areas in Bangladesh to larger storm surges and sea-level rise by 2050. The approach identifies polders (diked areas), coastal populations, settlements, infrastructure, and economic activity at risk of inundation, and estimates the cost of damage versus the cost of several adaptation measures.

Awareness as an Adaptation Strategy for Reducing Mortality from Heat Waves: Evidence from a Disaster Risk Management Program in India

Heat waves, defined as an interval of abnormally hot and humid weather, have been a prominent killer in recent years. With heat waves worsening with climate change, adaptation is essential; one strategy has been to issue heat wave warnings and undertake awareness campaigns to bring about behavioral changes to reduce heat stroke. Since 2002, the Indian state of Odisha has been undertaking a grassroots awareness campaign on “dos and don’ts” during heat wave conditions through the Disaster Risk Management (DRM) program.

Optimal crop protection against climate risk in a dynamic cost-loss decision-making model

Extreme meteorological events have increased over the last decade and it is widely accepted that it is due to climate change. Some of these extremes like drought or frost episodes largely affect agricultural outputs that could face a serious decline. Therefore, additional efforts on technology and adaptation become crucial to reduce the effect of climate change on agricultural production.

Impacts of Climate Change and Seasonal Variability on Economic Treatment Costs: A Case Study of the Nitra River Basin, Slovakia

Analysis of climate change impacts upon water resources has focused primarily on water quantity issues. The impacts upon water quality and water quality management have had little attention. This paper presents a framework for assessing climate change impacts upon stream water quality and the management costs associated with adaptation to the new hydroclimatic conditions resulting in changes in stream flow and stream temperature. Water quality indicators as well as chemical and biological processes important to water quality are a function of stream temperature.

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