Genesis of the coupling of internal wave modes in the Strait of Messina

Using the first two EOFs, an original method for detecting internal waves was developed by analyzing the scatter diagram of the first EOF projection coefficient versus the second EOF projection coefficient. This distribution has a specific “crescent shape” showing that the first two projection coefficients are not independent in the presence of internal wave events. The “crescent shape” signature of the internal waves can be used as an internal wave detector.