Wind wave may be written as: where C is speed (in meters per second), g is the acceleration due to gravity, and d is the depth of the water (in meters). The period of a wave remains unchanged regardless of the depth of water through which it is moving. As deep-water waves enter the shallows and feel the bottom, however, their speed is reduced and their crests "bunch up," so their wavelength shortens. As waves travel from deep to shallow water, their shape alters (wave height increases, speed decreases, and length decreases as wave orbits become asymmetrical). This process is called shoaling.
The Crests Jarmels. Former Jarmels member Ray Orta was also called in as a fill-in replacement for Joe Rivera. On December 12, 2017, J.T. Carter's Crests performed at The Paramount Theatre in Asbury Park, New Jersey, along with over 40 other groups from the 1950s and '60s, as part of TJ Lubinsky's new PBS TV Special, "Doo Wop Generations" (part of the "My Music" series). The special aired nationally in the US on PBS on March 3, 2018. The group was featured singing "The Angels Listened In" on the PBS television broadcast, as well as "Step By Step" listed on the CD/DVD