PDF-UNDERSTANDING TIDES

ii 18851914 Photograph taken in early 1960s AcknowledgmentsivList of Figures vii. High or Low - What Causes Tides?. Study Jams Video. What Are Tides?. Tides are the daily . rise. and . fall. of Earth’s . waters. on its coastlines. . As the tide comes . in. , the level of water on the beach . Tides. Tides are the daily changes in the elevation of the ocean surface. Tides are the daily rise and fall of the Earth’s waters on its coastlines.. Tides are caused by the interaction of the Earth, the moon and the sun.. May 2013. What is a TIDE?. Rise and fall in ocean levels. Most observable at the coastlines. What is a TIDE?. 2 High tides and 2 Low tides occur daily. Approx. 6 1/2 hours apart. What causes TIDES?. Moon-Earth Relationship. The . revolution. of the Moon around the Earth makes the Moon look as if it is changing shape in the sky.. This is caused by the different angles from which we see the lighted part of the Moon's surface.  . Description of Waves. A wave is the rhythmic movement that carries energy through space or . matter. Waves are generated by wind flowing over the water . surface. As a wave passes, water moves up and down in a circular pattern – returning to its original position. Overview. What is a Tide?. Types of Tides – Spring and Neap. High and Low Tides. Rule of Twelfths. Calculation of Tides at Secondary Ports. Calculation of Currents at Secondary Stations. Tide Races and Over falls . Waves. A . Wave. is a . rhythmic. . movement. that carries . energy. through matter or space.. In oceans, waves move through . seawater. Waves. Caused by. :. Wind. Earthquakes. Gravitational force of the Moon and Sun.. Mean Low Tide versus Mean Lower Low Water. And the winner is……….!. Measuring Water Depths. Boats, Airborne LIDAR, Satellites, AUV’s/ROV’s – Differences?. Sensor Positioning. . GPS. Laser. Section 19.3. Daily Question 1/6/15. In your daily question book write down at least three things you know about the moon. If you know more, please write them down as well.. Motions of the Moon. The moon travels through space in two ways:. Created by Winds. Coriolis Effect- The shifting of ocean currents and surface winds from their expected paths caused by the rotation of the earth. Gulf Steam – ocean current in the northern Atlantic ocean, brings warm water from Africa to the Americas. Moon’s Effect On Tides Warm-Up Activity In 3-5 sentences explain what you think happens to form tides. Gravity Gravity is stronger when objects are closer together. The moon will pull the water on the side of Earth nearest it more strongly than it pulls on Earth itself. What are tides?. Tides are the daily changes in the level of ocean water.. What causes tides?. Tides are caused by the difference in the gravitational force of the sun and the moon.. What is tidal force?. Study Jams Video. What Are Tides?. Tides are the daily . rise. and . fall. of Earth’s . waters. on its coastlines. . Tides . occur in . all . bodies of . water.. TidesTIDESThe periodic rise and fall of the sea level under the gravitational pull of the moon Tides are one of the most reliable phenomena in the world As the sun rises in the east and the stars come