Quality Information Document. Ocean Monitoring Indicator VAR EXTREME WAVE (Significant wave height)

The VAR EXTREME WAVE indicators are based on the computation of the 99th and the 1st percentiles (that represent approximately the 1% highest and lowest values, respectively) from in situ data (observations), following the same approach applied by Woodworth and Blackman (2004) to extreme sea levels. This method determines changes in the frequency distribution of the measured variables.