Jinyi yu basic ocean current systems from is the temperature rising. It contains the deepest place on earth the mariana trench. Ocean currents transport important quantities, such as nutrients, heat and pollutants around the world, often with direct consequence to humans. The function of this quizworksheet is gauge your knowledge of ocean currents. Distribute the student handout before you begin for students to take notes on key information. Currents are cohesive streams of seawater that circulate through the ocean. On the surface of the ocean they spread out into a broad band and encompass a layer of water of a certain depth. Ocean currents and climate average february temperatures oceanography 112 oceanography 112 phil farquharsonphil farquharson upwelling and downwelling upwelling vertical movement of cold, vertical movement of cold. Ppt the origin of the ocean powerpoint presentation. The gulf stream currents follows the course through the north atlantic for millennia. The geography of ocean currents national geographic society. Dynamics of ocean currents california digital library.
These four factors keep currents flowing in distinct patterns around the earth. Navigation arrows on either side of the current slide allow you to move to the previous and next slides. Ppt ocean currents powerpoint presentation free to. This module discusses the origin of ocean currents in both the open ocean and in coastal areas. Ocean composition petroleum formation ore formation 0 2 lecture 1. Pdf effect of ocean currents on ship navigation in the. An ocean current is a regular movement of large amounts of water along defined paths. Brief overview of microsoft powerpoint 2016 for mac os x. Western boundary currents are warm, deep, narrow, and fast flowing currents that form on the west side of ocean basins due to western intensification. Circulation water movement in the ocean currents cohesive streams of sea water that circulate through the oceans. Coriolis effect surface currents in the northern hemisphere curve right. The wind belts and the coriolis effect create huge circles of moving water, called gyres. Powerpoint for microsoft 365 automatically records the time. Ocean currents cause hills to form as water moves around in circle as water moves around in circle it piles up in middle it piles up in middle the greater the slope, the more quickly water flows greater current.
Presenter view automatically adapts to your projection setup, and you can even. Pdf cfd analysis of composite ocean current turbine blade. Microsoft powerpoint 2016 for mac is an application which can be used for creating some stellar presentations. Ppt the atlantic ocean powerpoint presentation free to.
An ocean current is a large volume of water flowing in a certain direction. Meteorology powerpoint lesson and student notes by teach. Coriolis effect streamlike movements of ocean water located far. Tools, technologies, and data covers all major aspects of ocean current measurements in view of the implications of ocean currents on changing climate, increasing pollution levels, and offshore engineering activities. Dynamics of ocean currents 433 system is moving through space at an unknown speed. This ranges from fundamental physical, thermodynamic and kinetic chemistry to twoway. I think that ocean currents would be interesting to research because even though sometimes if the oceans surface is completely calm, if you get. Upper ocean deep ocean deep ocean circulation surface circulation ess200a prof.
This resource includes a slide powerpoint presentation and 2 versions of the student notes pages full size and interactive notebook format modified notes also included. Today were going to learn about ocean currents slide 3 1. Microsoft powerpoint for mac is primed for use on tablets and phones, so you can swipe and tap your way through presentations. The geography of ocean currents students use maps to learn about ocean currents, research case studies of ocean spills, and discuss the role of oceanographers. Nearly closed current system in the open ocean clockwise pattern in n. Coops measures and disseminates observations, predictions and nowcastforecasts of water levels, currents, salinity, and meteorological parameters e. This short nonfiction text will not only teach students about the ocean, but it also includes questions to help students identify the authors point of view and purpose for writing the text by focusing on important vocabulary words that support the main idea. Ocean currents currents surface currents in the oceans are driven by winds. Ppt ocn 5401 powerpoint presentation, free download id.
As cold water currents travel toward the equator, they help moderate the warm temperatures of adjacent land areas. Origin of ocean currents drag exerted by winds flowing across the ocean causes the surface layer of water to. Some currents are shortlive and small and other are vast and they take a long time to complete a circuit of the globe. A free powerpoint ppt presentation displayed as a flash slide show on id. Surface currents flow around the periphery of ocean basins consider the north atlantic. Microsoft 365 surface pro x surface laptop 3 surface pro 7 windows 10. The pacific is the planets largest ocean, occupying over one third of earths surface. Ocean water contains steamlike movements of water called ocean currents. Coops maritime services is made up of several programs that aid mariners in transporting. To monitor ocean currents and ocean water characteristics far beneath the ocean surface, scientists use devices called profiling floats. The curving of the paths of ocean currents and winds due to earths rotation is called the coriolis effect. Microsoft powerpoint for mac download free 2020 latest.
Ocean currents article about ocean currents by the free. Red and yellow hills blue valleys 5 ocean currents. Ocean currents ocean currents mass movement or flow of ocean water river within the ocean conveyor belt two types surface deep or subsurface ocean currents vocabulary gyre. Reuse import slides from another presentation office support. Ocean currents translatory movements of masses of water in the seas and oceans. Install docker desktop on mac docker documentation. Versions of powerpoint that support online videos office support. Of all the worlds oceans, atlantic ocean is the youngest. The wind then pushes the surface water around the ocean in larger circular currents, called gyres. Surface currents flow around the periphery of ocean basins the ekman spiral and the mechanism by which it operates.
Microsoft powerpoint for mac 2020 full offline installer setup for mac. Ppt oceans powerpoint presentation free to download. It then describes the atmosphere and the two main types of weather before covering what causes weather and various meteorological phenomena including convection cells, jet streams, clouds, and ocean currents. The adobe flash plugin is needed to view this content. At great depths and on the bottom there are significantly slower movements of water particles in a certain general direction, usually opposite that of the surface. Surface currents affect water to a depth of several hundred meters and are driven mainly by wind. A surface current is an ocean current that generally flows in the upper. Ocean circulation winddriven circulation ekman layer, transport, pumping sverdrup theory western boundary current ess228 prof. Deep ocean cold dark deep ocean where plenty supplies ofcold, dark, deep ocean where plenty supplies of nutrients and carbon exist. Animations of ocean circulation globally, in the southern ocean and in the australian region. Ocean currents powerpointvideoreading notes surface ocean currents. Atlantic ocean is the second largest ocean in the world. Ocean waters are constantly on the move, creating a dynamic, everchanging system.
Directions of ocean currents the direction is influenced by many different factors. While davis drifters remain at the ocean surface during their deployment, profiling floats are programmed to sink to a particular depth and remain there for a specific period of time. An overview of ocean currents with emphasis on currents on. Scribd is the worlds largest social reading and publishing site. Although more than 70% of the earth is covered by ocean, there is limited information on the countless fine to. Basic ocean structuresbasic ocean structures warm up by sunlight. Ocean currents and convection powerpoint and notes by. Analyze the effects of ocean currents on global climate. The quiz covers vocabulary terms such as the coriolis effect, continental deflection and thermohaline circulation.
Ocean currents rarely behave exactly as predicted by these theoretical explanations due to factors such as depthshallow water does not permit full development of the ekman spiral densitydeeper currents moving in different directions influence the overlying surface movement 26. Ocean currents mass movement or flow of ocean water river within the ocean two types surface and deep. Deep ocean currents are caused by differences in water temperature and. If no button appears, you cannot download or save the media. Upper ocean 100 m shallow, warm upper layer where light isshallow, warm upper layer where light is abundant and where most marine life can be found. Record a slide show with narration and slide timings office support. No means are available fox determining absolute motion, but this is of no concern, because theobserved largescale motion of the atmosphere and the sea can be adequately described by means of the simple equations if the. The great ocean conveyor belt is the name for a model of the large system of ocean currents that affects weather and climate by circulating thermal energy around earth. If a media asset is downloadable, a download button appears in the corner of the media viewer. Ocean currents continuous movement of ocean water due to wind and the coriolis effect surface currents warm currents flow away from equator cold curents counter currents flow in the opposite direction of windrelated currents gulf stream rings stream wanders, sends out. Ocean currents and mixing by winds and waves can transport and redistribute heat to deeper ocean layers. Weather and ocean states such as ocean winds, ocean waves, and ocean currents can significantly affect ship navigation.
Surface currents surface currents are caused by the wind and usually move only the upper few hundred meters of water. In this model, high salinity water cools and sinks in the north atlantic, and deep water returns to the surface in the indian and pacific oceans through upwelling. Pacific ocean introduction an introduction to the pacific ocean the vast blue depths of the pacific ocean await you. Winddriven currents deep water currents 40% of the global heat transport move slower than surface winds kilometers per day vs. Water mass a body of water identifiable from its temperature, salinity or chemical content. For the videos to play properly, you must be using the current version of powerpoint for the web. Uninstall the current version of docker desktop and install a different version stable or edge, or reset your vm disk. List two examples of warm currents, and state where they are located. The major surface circulation patterns at sea are the result of the prevailing winds in. This unit introduces students to forces that force ocean currents, and allows students to explore what thermohaline and winddriven currents in the ocean look like and why. The surface is raised through wind motion and ekman transport.
To insert or embed a link to a youtube video, you must install these updates and. The pacific has been both a barrier and a highway throughout human history. The module focuses on the driving mechanisms for currents, along with influences that modify existing currents. Some of the ocean currents move quickly, while others move more slowly. Ppt oceans powerpoint presentation free to download id. The ocean currents may be divided into two major circulation systems, surface current circulation and deepwater circulation that are more diffuse and mainly north south directed currents, but these two systems are coupled in many ways. Currents are influenced by global wind coriolis effect, salinity, continental deflection and convection cells. By default, a copied slide inherits the design of the slide. Ocean currents are like rivers that move within the ocean. There are many features which make the new powerpoint attractive.
154 1197 86 1037 1467 885 194 1403 508 1271 1343 1134 1060 273 1323 924 1091 1024 397 895 1097 1488 1280 1302 1171 131 1363 152 1130 268 497 374 631