Abstract

Mega-ensemble climate projection results are expected to be used for investigating future changes in design condition, such as wave height and storm surged. However, climate models are known to have some uncertainties making bias correction necessary. We performed wave modeling was performed based on typhoon tracks extracted from megaensemble projections. Three bias correction methods were investigated, and the variation induced by these methods was evaluated. The corrected future wave heights showed variations among various locations, and they were larger than the variations caused by the difference in bias correction methods for the return periods of 1/30 and 1/50. This result suggests that appropriately selecting a correction method is not a significant issue in coastal planning.

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