Seasonal Shift in Storm Surges at Brest Revealed by Extreme Value Analysis

Global warming changes the Earth's climate in different ways, particular it influences extreme weather events like storms. Strong storms cause large surges and thus have a signature sea level record. While previous studies focused on long-term of storm surge amplitude or frequency, timing not been investigated so far. We employed more than 150 yr long tide gauge record Brest (France) found distinct shift between years 1950 2000. This caused to happen about three weeks earlier during year. developed for this study two methods based statistical value analysis; both show seasons consistently. Furthermore, by analyzing eight additional stations, we evidence that happened similarly over part European Atlantic coast. Therefore, speculate our measured is large-scale process.