1. I am currently looking at the area of spectral analysis applied to ocean waves. I have a set of "raw" recorded data of wave height, direction, frequency etc. I understand that spectral analysis is used to validate/process wave data recorded by instruments. 2. Have I more or less understood the principle correctly here? I am an engineer rather than a scientist/mathematician so I don't need to become an expert on the finer details of spectral analysis, a basic level understanding is all that's required! 3. My understanding is that real water waves (to a certain degree at least) behave according to theorectical wave patterns. As such, applying spectral analysis to "raw" data determines the extent to which theoretical wave behaviour matches measured wave behaviour. In this way, outliers or rogue data which do not correspond to theorectical expected patterns can be eliminated/adjusted, thereby yielding more representative results.