Optimal dike investments under uncertainty and learning about increasing water levels
| Jazyk: | angličtina |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
reinforcement
versterking WIMEK climatic change investeringsvereisten water level risk assessment netherlands klimaatverandering dijken decisions maintenance risicoschatting Environmental Economics and Natural Resources flood risk-assessment framework climate-change waterstand investment requirements dykes Milieueconomie en Natuurlijke Hulpbronnen |
| Zdroj: | Journal of Flood Risk Management. 7(4):308-318 |
| ISSN: | 1753-318X |
| Popis: | Water level extremes for seas and rivers are crucial to determine optimal dike heights. Future development in extremes under climate change is, however, uncertain. In this paper, we explore impacts of uncertainty and learning about increasing water levels on dike investment. We extend previous work in which a constant rate of structural water level increase is assumed. We introduce a probability distribution for this rate and study the impact of learning about this rate. We model learning as a single stochastic event where full information becomes available. Numerical solutions are obtained with dynamic programming. We find that the expected value of information can be substantial. Before information arrives, investment size is reduced as compared with the benchmark without learning, but investment frequency may be increased. The impact of learning on the initial investment strategy, however, is small as compared with the impact of uncertainty about increasing water levels by itself |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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