Spring and neap tides

Spring and Neap Tides
Spring Tides occur at new and full moon, when the combined gravitation effect of the Sun and Moon act to make high tides higher and low tides lower.

For information on spring and neap tides, click here.
WHY IS THE OCEAN BLUE?
The ocean appears blue because it is reflecting the blue color of the sky. On a gray, cloudy day, the ocean appears gray.

The figure shown above illustrates spring and neap tides.
Tidal Coupling and Gravitational Locking ...

See also: Mass, Energy, Earth, Mars, Time