PPT-Ocean Tides

CAPT Emil Petruncio US Naval Academy Oceanography Department Maury Project July 2016 Objectives Define terms used to describe tides List and define the forces that cause tides Describe tide measurements and the use of harmonic tidal constituents to predict tides. 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.. Tides. Tides Are the Longest of All Ocean . Waves, hence they are . Long waves. Tides Are Forced Waves Formed by Gravity and . Inertia. They are responsible for the rise and fall in sea level.. Tides . Parker MacCready, January 2011. Reference: . Admiralty Manual of Tides. , . Doodson. & Warburg, 1941, His Majesty’s Stationery Office. Orbital Force Balance. Tides are forced by the sun and moon, with similar physics. The Moon’s forcing is about twice that of the sun.. Section 3: Currents, Waves, and Tides. Earth Science. Mr. Margetan. . Ocean Currents. Surface Currents – Movement of water on the surface, primarily caused by winds. Ocean Currents. Longshore. Currents – Currents which run parallel to the shoreline due to energy released from waves. 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. 6. th. Grade Earth Science. Currents. A current is a large stream of water that flows through the ocean. . Two types of currents. Surface Currents Deep Currents. 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.. World Ocean. 3.1 The Waters of the Ocean. A. The Unique Nature of Pure Water. . All matter is made of atoms. Elements are make from one kind of atom. A molecule is two or more different atoms combined. How do we study them?. Have they always been here?. Oceanography. The scientific study of earth’s oceans. Ocean currents. Chemical composition. Seafloor sediments & topography. Marine life. How?. 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. from . applying tides explicitly . in a global ocean model. . Alex Megann. 1. and Maria Luneva. 2. Project . kickoff. meeting, 5 April 2018. 1. National Oceanography Centre, Southampton, UK. . 2. Pg. 350. Oceans. Since ancient times, Oceans have provided many things:. Food. Trade Routes. Habitats. Exploring the Floor. Bathymetry. : is the study of depth contours on the ocean floor.. Sonar. . their highest point of the day and fall to their lowest point . every 12.5 hours. . The tides result from the rotation of Earth on its axis as gravity . from the moon and the sun pull on Earth and its water. Think . Sections:. The Motion in the Ocean: Waves, Tides, and . Currents. What . is “Seawater?”. Ocean Basics: Pressure, Density, Temperature, and Acoustics. Oceanic . Regions: The Open Ocean, Benthic Ocean, and Sea floor Zones.