Marine Sciences- Ocean Waves
1. Explain the movement of water molecules within a wave
Shape
- If each water particle makes small oscillations around its spot, waves can form if all water particles move at the same time and in directions that add up to the wave's shape and direction.Because water has a vast number of molecules
Shape
3. Explain wave anatomy
Wave Crest-The highest part of the wave.Wave Trough-The lowest part of the wave.
Wave Height-The vertical distance between the crest and the trough.
Wavelength-The distance between successive crests or troughs of a wave.
Wave Crest-The highest part of the wave.Wave Trough-The lowest part of the wave.
Wave Height-The vertical distance between the crest and the trough.
Wavelength-The distance between successive crests or troughs of a wave.
4.What are most waves generated by? Explain.
- The disturbing force is usually wind, however, submarine landslides, seismic activity (earthquakes), etc can and do generate waves.
- The waves continue to build, their maximum size depending on three factors: wind speed, wind duration, and the area over which the wind is blowing, called the fetch.
6. Where the largest waves on earth found? Why?
Between Arctica and Indian Ocean.
7.What is a wave train? What happens when there is interference of wave trains?
A succession of similar waves at equal intervals.
Between Arctica and Indian Ocean.
7.What is a wave train? What happens when there is interference of wave trains?
A succession of similar waves at equal intervals.
8. What is rogue wave ? How are they created? How big can they get?
Rogue waves are relatively large and spontaneous ocean surface waves that occur far out at sea, and are a threat even to large ships and ocean liners, Rogue waves seem not to have a single distinct cause, but occur where physical factors such as high winds and strong currents cause waves to merge to create a single exceptionally large wave, itself defined as the mean of the largest third of waves in a wave record.
Rogue waves are relatively large and spontaneous ocean surface waves that occur far out at sea, and are a threat even to large ships and ocean liners, Rogue waves seem not to have a single distinct cause, but occur where physical factors such as high winds and strong currents cause waves to merge to create a single exceptionally large wave, itself defined as the mean of the largest third of waves in a wave record.
9. What happeneds to waves in shallow water? Explain.
At the depth of half the wavelength, the wave starts to " fell the bottom", it decreases in size and strength, its velocity decreases.
At the depth of half the wavelength, the wave starts to " fell the bottom", it decreases in size and strength, its velocity decreases.
10. What is swash ? What does it do? How it is involved in erosion?
It is known as a turbulent layer of water that washes up on the beach after an incoming wave has broken. The swash action can move beach materials up and down the beach, which results in the cross-shore sediment exchange,The swash motion plays the primary role in the formation of morphological features and their changes in the swash zone.
It is known as a turbulent layer of water that washes up on the beach after an incoming wave has broken. The swash action can move beach materials up and down the beach, which results in the cross-shore sediment exchange,The swash motion plays the primary role in the formation of morphological features and their changes in the swash zone.
11. What is tsunami? Explain how they are different than wind generated waves.
Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea.Tsunami waves may travel as fast as jet planes over deep waters, only slowing down when reaching shallow waters. Wind-generated waves are caused by the wind on the ocean surface, causing ripples and waves.
12. What are some of the cause of tsunamis? Explain.
Ring of Fire; Earth and Earthquakes.To generate tsunamis, earthquakes must occur underneath or near the ocean, be large and create movements in the sea floor.
Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea.Tsunami waves may travel as fast as jet planes over deep waters, only slowing down when reaching shallow waters. Wind-generated waves are caused by the wind on the ocean surface, causing ripples and waves.
12. What are some of the cause of tsunamis? Explain.
Ring of Fire; Earth and Earthquakes.To generate tsunamis, earthquakes must occur underneath or near the ocean, be large and create movements in the sea floor.
Global Impact
1. How can we generate electricity from wave power?Explain
Wave energy is produced when electricity generators are placed on the surface of the ocean.The energy provided is most often used in desalination plants, power plants and water pumps.Energy output is determined by wave height, wave speed, wavelength, and water density.
2. How much possible electricity could wave power generate?
The kinetic energy of the typical 4-foot, 10-second wave produces greater than 35,000 horsepower (26099.50 kW) of power for every mile of coastline. That's enough power to light one 100-watt light bulb for 260,095 hours, or about 30.8 years.
3. How many people have been killed by tsunamis?
283,000
4. What can be done about tsunamis to help protect people and property?
Develop a Family Disaster Plan; Plan an Evacuation Route; Practice your Evacuation Route; Get a NOAA Weather Radio; Discuss Tsunami Preparedness with Your Family.Prepare the essentials; Have a pet plan; Heed warnings
Wave energy is produced when electricity generators are placed on the surface of the ocean.The energy provided is most often used in desalination plants, power plants and water pumps.Energy output is determined by wave height, wave speed, wavelength, and water density.
2. How much possible electricity could wave power generate?
The kinetic energy of the typical 4-foot, 10-second wave produces greater than 35,000 horsepower (26099.50 kW) of power for every mile of coastline. That's enough power to light one 100-watt light bulb for 260,095 hours, or about 30.8 years.
3. How many people have been killed by tsunamis?
283,000
4. What can be done about tsunamis to help protect people and property?
Develop a Family Disaster Plan; Plan an Evacuation Route; Practice your Evacuation Route; Get a NOAA Weather Radio; Discuss Tsunami Preparedness with Your Family.Prepare the essentials; Have a pet plan; Heed warnings
DO: Activities: Breaking Waves
Tsunami Warning Systems
1. Describe the different types of warning systems that are in place for tsunamis( Including animal, people, and instincts)
Practice your Evacuation Route. Familiarity may save your life.Be able to follow your escape route at night and during inclement weather.Practicing your plan makes the appropriate response more instinctive, requiring less thinking during an actual emergency situation.
Have a pet plan. Sheltering your pet or evacuating it with you can have an effect on your overall plan.You may need to take special steps to make sure your pet is safe before, during, and after the disaster.
Discuss Tsunami Preparedness with Your Family. Everyone should know what to do in case all family members are not together.Review flood safety and preparedness measures with your family.
Tsunami Warning Systems
1. Describe the different types of warning systems that are in place for tsunamis( Including animal, people, and instincts)
Practice your Evacuation Route. Familiarity may save your life.Be able to follow your escape route at night and during inclement weather.Practicing your plan makes the appropriate response more instinctive, requiring less thinking during an actual emergency situation.
Have a pet plan. Sheltering your pet or evacuating it with you can have an effect on your overall plan.You may need to take special steps to make sure your pet is safe before, during, and after the disaster.
Discuss Tsunami Preparedness with Your Family. Everyone should know what to do in case all family members are not together.Review flood safety and preparedness measures with your family.