As a marine science expert with extensive knowledge in oceanography, I can explain the different types of tides. Tides are the periodic rise and fall of sea levels caused by the gravitational forces exerted by the Moon and the Sun, and the rotation of the Earth. Here are the four types of tides: 1. Diurnal Tides: These occur when there is one high tide and one low tide approximately every 24 hours and 50 minutes. This pattern is less common and typically happens when the Moon is either at its first or last quarter. 2. Semi-diurnal Tides: This is the most common type of tide, where there are two high tides and two low tides each day. The period between successive high (or low) tides is approximately 12 hours and 25 minutes. 3. Mixed Tides: In this type of tide, the two daily high tides and two daily low tides do not have the same range, meaning one high tide will be higher than the other, and one low tide will be lower than the other. This is due to the varying gravitational influences of the Moon and the Sun. 4. Meteorological Tides: This is not a true astronomical tide but rather a variation in the tide levels due to atmospheric conditions such as barometric pressure changes, which can cause temporary rises or falls in sea level. read more >>

There are three basic types of daily tides and a fourth type that encompasses atmospheric variations.Diurnal Tide. A diurnal tide has one episode of high water and one episode of low water each day. ... Semi-diurnal Tide. ... Mixed Tide. ... Meteorological Tide.read more >>