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The choice of the thresholds is based on the work done for WISC. The Storm Severity Index is defined as:
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SSI$$SSI = A \ast [mean(u_{10m} > threshold)]^3^3$$ |
Where A is the area over land in km2 and 𝑢10𝑚 is 10m wind speed from the reanalysis data. This is equivalent to the SSI used in Dawkins et al., (2016).
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Storm Severity Index (SSI) is defined as:
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SSI$$SSI = A \ast [mean(u_{10m}>threshold > threshold)]^3^3$$ |
Where A is the area over land in km2 and 𝑢10𝑚 is 10m wind speed calculated from the re-analysis data. This is equivalent to a definition of SSI used in Dawkins et al., (2016), with the only difference being the threshold of 10m wind speed used. This metric is also calculated from the land masked, and the ERA5 masked wind speeds.
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