Complex sentence: Hundreds of factors are involved in the lunitidal interval, especially near shorelines, but far enough away from the coast, the dominating factor is the speed of gravity waves, which increases with the depth of the ocean.
Split into simpler sentences: Hundreds of factors are involved in the lunitidal interval, especially near shorelines. However, if you are far enough away from the coast, the dominating factor is the speed of gravity waves, which increases with the depth of the ocean.