What is aquatic divergence?

zones in which surface currents in the world ocean diverge. They may be traced most clearly in cyclonic circulations and in areas where there are abrupt changes by wind and currents to opposite directions and velocities. ...

1. What is water divergence?
2. What is divergence in oceanography?
3. What causes divergence in the ocean?
4. What is convergence in ocean?
5. Why is downwelling important?
6. Where in the oceans does downwelling occur?
7. What is the meaning of downwelling?
8. What do Oceans do with interconnection?
9. Is downwelling a divergence or convergence?
10. What is a divergence in geography?
11. What does divergence mean in geography?
12. Which two forces are most important in controlling the direction of the geostrophic current?
13. What is convergence and divergence in geography?
14. Why do oceans circulate?
15. What drives deep water circulation?

What is water divergence?

Diverting water away from its natural channel for commercial or private use.

What is divergence in oceanography?

Because of Ekman transport, an anticyclonic circulation causes a convergence of surface waters and a cyclonic circulation a divergence. ... In (a) there is a divergence at the surface which depresses the surface of the ocean and raises water from beneath the thermocline towards the surface (upwelling).

What causes divergence in the ocean?

In the oceans, plates move apart at mid-ocean ridges. Lava rises upward, erupts, and cools. Later, more lava erupts and pushes the original seafloor outward. This is seafloor spreading.

What is convergence in ocean?

in the ocean, zones where the surface waters of the ocean come together. They develop owing to unevenness in the wind field above the ocean and in the distribution of water density.

Why is downwelling important?

Downwelling also allows for deep ocean oxygenation to occur because these waters are able to bring dissolved oxygen down from the surface to help facilitate aerobic respiration in organisms throughout the water column.

Where in the oceans does downwelling occur?

Where does most downwelling occur? Most downwelling happens at the poles. There, cold air chills the water. The water brought in by the surface gyres is pretty salty already, because it comes from the tropics, where evaporation increased salinity.

What is the meaning of downwelling?

a downward current of surface water in the ocean, usually caused by differences in the density of seawater.

What do Oceans do with interconnection?

6: The ocean and humans are inextricably interconnected.

It supplies freshwater (most rain comes from the ocean) and nearly all Earth's oxygen. It moderates the Earth's climate, influences our weather, and affects human health. b. From the ocean we get foods, medicines, and mineral and energy resources.

Is downwelling a divergence or convergence?

Because mass is conserved, convergence in one area requires an equal amount of divergence somewhere else to balance it. To summarize: convergence usually means downwelling, divergence usually means upwelling, and upwelling frequently (but not always) is associated with enhanced biological productivity.

What is a divergence in geography?

A BROAD AREA WHERE two tectonic plates are colliding is a zone of convergence. An area where plates are moving apart is a zone of divergence.

What does divergence mean in geography?

Divergence occurs when a stronger wind moves away from a weaker wind or when air streams move in opposite directions. When divergence occurs in the upper levels of the atmosphere it leads to rising air.

Which two forces are most important in controlling the direction of the geostrophic current?

The rotation of the earth results in a "force" being felt by the water moving from the high to the low, known as Coriolis force. The Coriolis force acts at right angles to the flow, and when it balances the pressure gradient force, the resulting flow is known as geostrophic.

What is convergence and divergence in geography?

convergence and divergence, in meteorology, the accumulation or drawing apart of air, as well as the rate at which each takes place. ... The convergence of horizontal winds causes air to rise, whereas the divergence of horizontal winds causes downward motion of the air (subsidence).

Why do oceans circulate?

Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. ... These currents move water masses through the deep ocean—taking nutrients, oxygen, and heat with them.

What drives deep water circulation?

These deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity (haline). This process is known as thermohaline circulation. ... This initiates the deep-ocean currents driving the global conveyer belt.