What is the relationship between wind and ocean waves?
Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. These types of waves are found globally across the open ocean and along the coast.
What is the relationship between wind speed and wave energy?
Wave height is affected by wind speed, wind duration (or how long the wind blows), and fetch, which is the distance over water that the wind blows in a single direction. If wind speed is slow, only small waves result, regardless of wind duration or fetch.
What is the relationship between the ocean wave and the energy of that wave?
The amount of energy in a wave depends on its height and wavelength as well as the distance over which it breaks. Given equal wavelengths, a wave with greater amplitude will release more energy when it falls back to sea level than a wave of lesser amplitude.
What is the relationship between wind and ocean waves quizlet?
Wind blowing across water transfers energy to that water. Energy creates tiny ripples which make an uneven surface for wind to catch and create larger waves. The waves travel across the ocean out of the area where the wind is blowing.
Does the ocean pull away from the shore as a tsunami approaches?
T/F The ocean may pull away from the shore as a tsunami approaches. Water from a tsunami sweeps far inland. Tsunamis are usually a series of waves. It can take several min to several hrs for a tsunami to arrive.
What causes swells in the ocean quizlet?
Swells are rolling waves that travel long distances through the ocean, generated by distant storms.
What are swells in the ocean quizlet?
Swells are long-crested, uniform, symmetrical waves that require very little energy to travel out of their area of origin. The height of a wave depends upon: fetch, wind duration, and wind speed.
What is traveling with a wave in the ocean quizlet?
What is traveling with a wave in the ocean? the waveform.
What causes ocean waves to form quizlet?
Most waves form when winds blowing across the water’s surface transmit their energy to the water.
Do waves start in the open ocean?
Waves start out in the deep, open ocean as relatively vertical in shape, Presnell said. As a wave travels toward the shore, though, the bottom part of the wave drags along the ocean floor. The upper part of the wave above the water line starts to move faster than the rest of the wave.
What two factors control the size of the waves in the ocean?
The size of a wave depends on three factors: the distance over which the wind blows across open water (the fetch), the strength of the wind, and the duration that the wind blows. The larger these factors, the larger are the waves. Not surprisingly, the largest wind waves occur on the open ocean.
Which best describes one way that convection influences the circulation of ocean water?
Convection refers to the movement of heat through a fluid, such as water. Which best describes one way that convection influences the circulation of ocean water? – Warm water at the surface flows toward the poles and sinks as it cools. – Deep, cold water flows toward the equator and rises as it cools.
What are three factors that influence ocean currents?
Oceanic currents are driven by three main factors:
- The rise and fall of the tides. Tides create a current in the oceans, which are strongest near the shore, and in bays and estuaries along the coast.
- Wind. Winds drive currents that are at or near the ocean’s surface.
- Thermohaline circulation.
What are two types of ocean currents?
There are two type of Ocean Currents:
- Surface Currents–Surface Circulation.
- Deep Water Currents–Thermohaline Circulation.
- Primary Forces–start the water moving.
- The primary forces are:
- Secondary Forces–influence where the currents flow.
- Solar heating cause water to expand.
Which ocean current determines weather changes?
Answer: The Gulf Stream determines climate change. Thermohaline circulation occurs due to the difference in the temperatures, densities, and salinities of the waters, and determines climate changes.
Which correctly lists the three main ocean zones?
Deep zone, surface zone and transition zone.
What are the 2 types of currents?
Current electricity is a constant flow of electrons. There are two kinds of current electricity: direct current (DC) and alternating current (AC).
What are two main factors that affect deep ocean currents?
Deep currents are driven by temperature and water density/salinity. Of course, deep currents impact surface currents, which carry warm water to the poles. Surface currents are also driven by global wind systems fueled by energy from the sun. Factors like wind direction and the Coriolis effect play a role.
Why is ocean water always saline?
Salt in the sea, or ocean salinity, is mainly caused by rain washing mineral ions from the land into water. Carbon dioxide in the air dissolves into rainwater, making it slightly acidic. Around 3.5% of the weight of seawater comes from dissolved salts. …
What is the strongest creature in the sea?
Blue Whale
What is the fastest current in the ocean?
The Gulf Stream
What is the longest ocean current in the world?
Antarctic Circumpolar Current
Which ocean current is the most important?
The Antarctic Circumpolar Current is the only ocean current to circle the planet and the largest wind-driven current on Earth. It’s also 30% more powerful than scientists realized.
How strong is the current in the ocean?
These strong and often very localized currents can carry unsuspecting swimmers out to sea. The currents usually move at 1 to 2 feet per second (0.3 to 0.6 meters per second), but stronger ones can pull at 8 feet per second (1.6 meters/second). That’s the same pace as a world-record Olympic freestyler, Carey said.
What does the powerful ocean current bring from the ocean’s depths?
Cold, salty water is heavy and sinks to great depths. This causes the circulation of millions of cubic metres of water in the ocean. This powerful phenomenon, which primarily occurs in a few polar regions of the ocean, is called convection.