Weather regimes and sea surge variations over the Gulf of Lions (French Mediterranean coast) during the 20th century.

The article analyzes the relationships between sea surge and frequency of each weather regime at inter-annual to multi-decadal time scales. More than 75 percent of sea surges occur during both of the weather regimes associated with a negative North Atlantic Oscillation phase. The relationships between monthly/seasonal frequency of weather regime and 75th percentile of sea surge at Grau-de-la-Dent tend to strengthen during the 20th century. The correlation between seasonal frequencies of GA and 75th percentile of sea surge increases from 0.07 in 1905-1940 to 0.83 in 1974-2002.