What Causes Tides?

The video introduces the concept of tides as the rising and falling of ocean water twice daily. It defines high tide as the highest point and low tide as the lowest point, highlighting their importance for coastal life.

The moon is identified as the main cause of tides due to its gravitational pull on Earth's oceans. Gravity is explained as the force that draws objects towards a center, keeping planets in orbit.

The moon's gravity pulls on Earth's water, causing it to bulge in the direction of the moon. This phenomenon is called the tidal force, and this bulge represents a high tide.

The tidal force affects the entire planet, causing Earth to experience a 'squeeze' that results in two bulges of water on opposite sides. These two bulges explain why there are two high tides each day as Earth rotates through them.

The video discusses how warming climates and rising oceans are leading to higher high tides, causing flooding in coastal communities. High-tide flooding occurs when tides are approximately 2 feet above average.

Scientists use information from various sources, including NOAA’s GOES-R series weather satellites, to study high-tide floods. This information helps coastal communities plan for the effects of rising tides.