search for: neap

...ouple bands that make up the major constituents of the tide. Over short periods, we could pretend there are just two frequencies, though they are really clusters of nearby frequencies that start to diverge as the record gets long. Tidal frequencies also beat which causes monthly/14-day "spring-neap" cycles with greatly accentuated or attenuated inequalities between high tide and low tide. Despite the dominance of the tide, there is variation across the channel that is of interest. A good physical interpretation of what is happening is not just that amplitude varies across the channel bu...