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This document defines and compares different types of ocean water movement. It defines waves, tsunamis, tides, storm surges, and El Niño events. It compares the differences between waves and currents, and discusses how surface currents differ from deeper currents. Lastly, it compares low and high tides, noting that low tides expose more land while high tides cause water levels to rise several meters in the bulges between tide locations.
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The Movement Of Water On Earth1
The document summarizes three ways that water can be moved on Earth: waves, currents, and tides. Waves are caused by wind moving across water and come in the form of crests and troughs, including tsunamis from earthquakes or landslides. Currents are streams of water that flow through the ocean due to the movement of the Earth, winds, and rotation, transporting warm and cold water to different regions. Tides are rises and falls in sea levels caused by the gravitational pull of the Moon, which bulges the ocean facing it, resulting in high and low tides about twice a day.
Ocean Currents 1
Ocean currents exist to help balance the Earth's uneven heating by the Sun. The Sun deposits most of its energy at the equator, so atmospheric circulation and ocean currents transfer heat from the equator toward the poles. Winds drive 80% of this redistribution, while ocean currents account for 20%. Surface ocean currents form circular gyre patterns in ocean basins, driven by subtropical high pressure systems, and affect the locations of deserts on western continents in the Southern Hemisphere. Deep ocean currents also circulate heat but over much longer timescales of around 1,000 years.
Ocean currents
Here are the answers to the questions:
1. A convection cell is a circular flow pattern caused by heating and cooling of the atmosphere or ocean.
2. In the Southern Hemisphere, currents get deflected to the left due to the Coriolis effect.
3. An Ekman spiral occurs in the upper 100 meters or less of the ocean.
4. Surface currents are created by wind stress and friction at the air-sea interface.
5. A gyre is a large system of circular ocean currents, typically thousands of kilometers across.
6. During an El Nino, upwelling of cold, nutrient-rich water is reduced along the coasts of the Americas.
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This document provides an overview of various natural phenomena including wind, tides, currents, and littoral drift. It describes the characteristics of wind including direction, frequency, and intensity which are represented graphically in a wind rose. Tides are defined as the periodic rise and fall of ocean waters caused by gravitational forces of the sun and moon. Types of tides include spring, neap, semi-diurnal, and diurnal tides. Currents are horizontal water movements caused by factors such as tides, wind, temperature/salinity differences, and wave breaking. Currents can cause scouring, erosion, deposition, and impact marine structures. Littoral drift is the alongshore sediment movement in the
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An ocean current is a continuous movement of ocean water generated by forces acting on the ocean. There are two main types of ocean currents: surface currents, which are parts of large rotating systems influenced by factors like wind and Coriolis effect; and deep water currents, also called thermohaline circulation, which are density driven and move more slowly in a north-south direction. Ocean waves are the forward movement of water caused by oscillation, with characteristics like crest, trough, wavelength and period. Coastlines are shaped by erosion processes from ocean waves and currents, forming features such as wave-cut cliffs and platforms.
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The document discusses the major types of ocean water movements: waves, tides, and ocean currents. Waves and currents are horizontal movements caused by wind and other forces, while tides are vertical movements caused by gravitational forces from the sun and moon. Key points covered include the causes and impacts of each type of movement, such as how tides are important for navigation and fisheries and currents influence climate. Ocean movements play a crucial role in distributing heat around the planet.
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The document summarizes information about tides and currents in New York Harbor. It explains that tides are caused by the gravitational pull of the moon and sun, and that they cause water levels to rise and fall approximately every 12 hours. It also discusses how tidal changes cause tidal currents to flow in and out with the rising and falling tides. Maps and diagrams show the typical tidal currents in New York Harbor on both high and low tides.
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The document summarizes three ways that water can be moved on Earth: waves, currents, and tides. Waves are caused by wind moving across water and come in the form of crests and troughs, including tsunamis from earthquakes or landslides. Currents are streams of water that flow through the ocean due to the movement of the Earth, winds, and rotation, transporting warm and cold water to different regions. Tides are rises and falls in sea levels caused by the gravitational pull of the Moon, which bulges the ocean facing it, resulting in high and low tides about twice a day.
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Ocean currents exist to help balance the Earth's uneven heating by the Sun. The Sun deposits most of its energy at the equator, so atmospheric circulation and ocean currents transfer heat from the equator toward the poles. Winds drive 80% of this redistribution, while ocean currents account for 20%. Surface ocean currents form circular gyre patterns in ocean basins, driven by subtropical high pressure systems, and affect the locations of deserts on western continents in the Southern Hemisphere. Deep ocean currents also circulate heat but over much longer timescales of around 1,000 years.
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Here are the answers to the questions:
1. A convection cell is a circular flow pattern caused by heating and cooling of the atmosphere or ocean.
2. In the Southern Hemisphere, currents get deflected to the left due to the Coriolis effect.
3. An Ekman spiral occurs in the upper 100 meters or less of the ocean.
4. Surface currents are created by wind stress and friction at the air-sea interface.
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Waves are rhythmic motions that transfer energy through matter or space. While water molecules stay in the same place as a wave passes, wave energy causes the rise and fall of tides in the ocean. Tides are giant waves thousands of kilometers long caused by the combined gravitational pulls of the moon and sun, with the moon having the strongest effect due to its proximity. This results in two high tides and two low tides every 24 hours and 50 minutes as the moon orbits the Earth. The sun can strengthen or weaken the moon's influence, causing spring tides during alignment and neap tides when at a right angle.
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The document summarizes key concepts about motion in the ocean including waves, tides, and currents. It describes how waves are caused by wind and other disturbances, and the characteristics of different types of waves like chop, swell, and tsunamis. It explains how tides are caused by the gravitational pull of the sun and moon, and details the differences between spring, neap, perigeal, and apogee tides. It also discusses the causes and effects of various surface and deep ocean currents like the Gulf Stream and how the Coriolis effect influences their direction of flow.
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2. Key characteristics of waves include the crest (highest point), trough (lowest point), wavelength (distance between crests), and wave height (distance between crest and trough). Wavelength determines wave speed and how deep the wave disturbs the water.
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Oceans are a vast body of salt water that covers almost three to fourths of the earth's surface.
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High density, high heat capacity, colder, salty and slightly compressible (its volume decreases under pressure), thus its density increases with pressure.
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•Similar to winds in the atmosphere, they transfer significant amounts of heat from equatorial areas to the poles and thus play important roles in determining the climates of coastal regions.
•The ocean circulation pattern exchanges water of varying characteristics, such as temperature and salinity
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•in addition, they transport nutrients and organisms
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Waves are disturbances that move through or over the surface of a fluid, usually caused by winds, earthquakes, gravitational pull, or volcanoes. Waves are generated by a force and restored to their original level by a restoring force, such as surface tension or gravity. Individual water molecules move up and down in vertical orbits as a wave passes through without moving forward or backward. Wave characteristics include crest, trough, height, wavelength, period, frequency, and speed. Wave size depends on wind speed, duration, and fetch. Longer period waves travel faster than shorter waves.
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Here is another creative presentation by your slide maker on the topic "OCEAN CURRENTS OF THE WORLD". Hope you like it. If you like it then please, *like*, *Download* and *Share*.
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or
Sharmacomputers87@gmail.com
*******THANK YOU***************
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1. Ocean currents are large-scale circular movements of ocean water generated by forces like wind and temperature differences.
2. Major ocean currents include the Gulf Stream and Kuroshio Current which transport warm water from the equator, and cold currents like the Canary and California Currents which flow toward the equator.
3. Ocean currents influence global climate by transporting heat energy and making some coastal regions warmer than expected for their latitude, like northwest Europe due to the Gulf Stream.
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This document provides an overview of ocean currents and tides. It describes how surface currents are driven by winds and affected by the Coriolis effect and continental deflections, while deep currents are formed by differences in water density. It also discusses how currents influence climate, such as warm currents creating warmer coastal areas. The document outlines the formation and types of ocean waves, including how tides are influenced by the positions of the Earth, sun and moon. Tidal ranges vary, with spring tides having the largest ranges during new and full moons. Tidal bores can also occur in narrow coastal inlets during high tide rises.
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1. Waves transfer energy through water in the ocean. Individual water particles move in circles as a wave passes by rather than moving forward with the wave.
2. Key characteristics of waves include the crest (highest point), trough (lowest point), wavelength (distance between crests), and wave height (distance between crest and trough). Wavelength determines wave speed and how deep the wave disturbs the water.
3. As waves approach shore they slow down and steepen, eventually collapsing in breakers where the crest curls over. Tides are caused by gravitational attraction of the Earth, Moon, and Sun, and vary in daily and monthly cycles.
Naturalists at Large: Marine waves tides
Ocean waves are caused by wind, earthquakes, and gravitational forces. A wave has a crest, trough, wavelength, and height. When wind blows over water, it creates friction that moves the water into waves. Tides are caused by the gravitational pull of the moon, which creates giant waves that cause sea levels to rise and fall about every 12 hours. The tidal range is the difference between high and low tide levels. Spring tides occur when the sun and moon are aligned to produce higher high tides and lower low tides, while neap tides occur at right angles with smaller tidal ranges.
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Ocean waves are disturbances created when energy moves through water. They have distinct parts including crests, troughs, wavelength, period, and frequency. The breaking of waves on the shore is called surf and occurs in the surf zone. There are also internal waves, seiches, and tsunamis which are large waves caused by underwater earthquakes or landslides.
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This document discusses ocean temperatures. It explains that ocean temperatures vary based on several factors, including latitude, winds, ocean currents, the distribution of land and sea, icebergs, and salinity. Near the equator, temperatures are highest due to greater sunlight. Warm currents increase temperatures while cold currents decrease them. The northern hemisphere oceans are generally warmer due to less land area. Temperature decreases with depth below the ocean surface.
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The document summarizes key aspects of oceans and ocean life. It describes the five major oceans, characteristics of ocean waves like crests and troughs, how waves break near shore, and factors that influence wave size like wind speed and duration. It also discusses ocean currents, how surface currents are driven by wind and affect weather and navigation, and how density currents deeper than 400 feet are caused by differences in salt concentration and temperature. Currents influence the distribution of plankton and larger sea life that depend on plankton.
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This document discusses ocean currents, including their layers, properties, forces, and major currents in the Atlantic Ocean. It describes three main layers - surface currents in the upper 10% influenced by winds and temperature, a transition layer where temperature and density rapidly change, and deep currents in the lower 90% influenced more by density and gravity. The key forces that drive ocean currents are solar heating, winds, gravity, and the Coriolis effect. It outlines several major Atlantic currents including the Gulf Stream, North Atlantic Drift, and others.
Ocean current
Oceans are a vast body of salt water that covers almost three to fourths of the earth's surface.
Seas are smaller, found on the margins of the ocean and are partially enclosed by land.
Seawater:
High density, high heat capacity, colder, salty and slightly compressible (its volume decreases under pressure), thus its density increases with pressure.
Why is Ocean Circulation Important?
•Similar to winds in the atmosphere, they transfer significant amounts of heat from equatorial areas to the poles and thus play important roles in determining the climates of coastal regions.
•The ocean circulation pattern exchanges water of varying characteristics, such as temperature and salinity
•ocean currents and atmospheric circulation influence one another.
•in addition, they transport nutrients and organisms
Motion in the ocean
Waves are disturbances that move through or over the surface of a fluid, usually caused by winds, earthquakes, gravitational pull, or volcanoes. Waves are generated by a force and restored to their original level by a restoring force, such as surface tension or gravity. Individual water molecules move up and down in vertical orbits as a wave passes through without moving forward or backward. Wave characteristics include crest, trough, height, wavelength, period, frequency, and speed. Wave size depends on wind speed, duration, and fetch. Longer period waves travel faster than shorter waves.
4. Ocean Current Notes
There are two types of ocean currents: surface currents in the upper 400m and deep water currents that make up 90% of the ocean. Surface currents are driven primarily by solar heating, winds, gravity, and the Coriolis effect. These primary forces start the water moving and secondary forces like the Coriolis effect influence the direction of currents. Gyres are formed from the interaction of winds and the Coriolis effect, creating circular ocean currents. Deep water circulation occurs in cold, salty waters and drives the global thermohaline circulation.
Ocean currents of the world
Here is another creative presentation by your slide maker on the topic "OCEAN CURRENTS OF THE WORLD". Hope you like it. If you like it then please, *like*, *Download* and *Share*.
By- Slide_maker4u (Abhishek Sharma)
*******For presentation Orders, contact me on the Email addresses Written below********
Email- Sharmaabhishek576@gmail.com
or
Sharmacomputers87@gmail.com
*******THANK YOU***************
Movement of Ocean Water
Surface currents are driven mainly by wind and move large amounts of water across oceans, influencing global climate. Deep currents form due to differences in water density from temperature and salinity and are not wind-driven. Major surface currents like the Gulf Stream distribute heat from the equator to poles, warming areas like northern Europe. El Niño is a periodic warming of tropical Pacific waters that alters weather worldwide and impacts fisheries and agriculture through changed rainfall and storms. Scientists monitor oceans to improve understanding and forecasts of El Niño events and their far-reaching climatic effects.
Higher Geography Ocean Currents
Ocean currents play an important role in redistributing heat around the globe. They transfer warm water towards the poles and cool water towards the equator, making sure temperatures remain balanced. Ocean currents are driven by thermohaline circulation, where differences in water density due to temperature and salinity cause convection currents. Major currents like the Gulf Stream can flow for thousands of kilometers and have a significant impact on nearby climates, such as northwest Europe which is warmer than expected for its northern latitude due to the Gulf Stream.
AS GEOGRAPHY - ATMOSPHERE AND WEATHER - OCEAN CURRENTS
1. Ocean currents are large-scale circular movements of ocean water generated by forces like wind and temperature differences.
2. Major ocean currents include the Gulf Stream and Kuroshio Current which transport warm water from the equator, and cold currents like the Canary and California Currents which flow toward the equator.
3. Ocean currents influence global climate by transporting heat energy and making some coastal regions warmer than expected for their latitude, like northwest Europe due to the Gulf Stream.
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December 26 2004: the most powerful earthquake in 40 years triggers waves that travel thousands of miles to crash onto the coastlines of at least five Asian countries, killing more than 7,000 people and affecting millions of others
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August 16 1976: a tsunami kills more than 5,000 people in the Moro Gulf region of the Philippines.
March 28 1964: Good Friday earthquake in Alaska sends out a wave swamping much of the Alaskan coast and destroying three villages. The wave kills 107 people in Alaska, four in Oregon and 11 in California as it sweeps down the West Coast.
May 22 1960: a wave reported as up to 11 meters high kills 1,000 in Chile and causes damage in Hawaii, where 61 die, and in the Philippines, Okinawa and Japan as it sweeps across the Pacific.
April 1 1946: Alaskan quake generates tsunami that destroys North Cape Lighthouse, killing five. Hours later the wave arrives at Hilo, Hawaii, killing 159 people and doing millions of dollars in damage.
January 31 1906: a devastating offshore quake submerges part of Tumaco, Colombia, and washes away every house on the coast between Rioverde, Ecuador, and Micay, Colombia. Death toll estimated at 500 to 1,500.
December 17 1896: a tsunami washes away part of the embankment and main boulevard of Santa Barbara, California.
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(Name)
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- 1. HOW DOES OCEAN WATER MOVE ?
- 2. QUESTIONS 1. Define: a) Wave d) Strom Surge b) Tsunami e) El Niño c) Tide 2. Compare and contrast: current – wave. 3. How is surface current different from current . 4. Compare the types of tides.
- 4. Tsunami: A tsunami isn`t a high wave, but it is long and moves very fast.
- 5. Tide: Rise and fall in the water level of the ocean.
- 6. Strom Store: The mound of water that pushes onto shore in a hurricane.
- 8. Carry water great distances across the surface.
- 10. Is the up- down movement of surface.
- 11. Use energy
- 12. A wave carries energy.
- 13. Energy moves toward .
- 14. Both have Ripples.
- 16. In the parts of the ocean between the bulges, the water level is lower, at that places the lower tides occurs.
- 17. As high tide, water level can rise by several maters.
- 18. The level of the ocean is higher in the bulges, producing a high tide.