PPT-Ocean Waves and 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. 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.. 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. The Motion of the Ocean…. Marine Science. Day 1: . Atmospheric Circulation . Objectives. :. What is physical oceanography?. What are the layers of the atmosphere?. Explain how the surface of the Earth is heated.. 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. 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. CAPT . Emil Petruncio. U.S. 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. 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. Highways in the Sea. What forces are responsible for currents?. Wind. : transfers energy through friction on surface; causes currents and waves. Sea level. : steeper slope=greater pressure gradient=drives a larger, faster current. 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. Chapter 14. Page 364 – 387. Currents. Imagine that you are stranded on a desert island. You stuff a distress message into a bottle & throw it into the ocean, hoping it will find its way to someone who will send help. .