how water helps in regulate the temperature of Earth
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Ocean currents act much like a conveyer belt, transporting warm waterand precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, currents regulate global climate, helping to counteract the uneven distribution of solar radiation reachingEarth's surface.
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The ocean transports heat through two major mechanisms. Deep circulations connected to high latitude convection and shallow wind driven gyres.
This can be explained quite easily. Think of a pot of water on a stove. The heat source heats he water from below. The molecules become excited, expand and therefore decrease the water particles density.
This can be explained quite easily. Think of a pot of water on a stove. The heat source heats he water from below. The molecules become excited, expand and therefore decrease the water particles density.
In the ocean, convective processes act on a time scale of 100s to 1000s of years. Furthermore cooling from above also plays a role. For example when ice forms at the poles, the colder and now denser water sinks. Closing the 'circulation loop' (thermohaline circulation). This essentially means that in the ocean heat is transported through changes in density - cold water sinks (more dense) and warm water rises (less dense).
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The second process is wind driven and only really affects the upper ~50 to ~200m. This is a little more complicated in the ocean as the earth is rotating, but if we apply this to our pot on a stove set up. Imagine we blew air across the surface of our pot. The movement of water away from where we are blowing needs to be replaced by water from below. This water below has a different temperature from the departing water. The waters end up mixing and a new uniform temperature is reached.
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Ocean currents act much like a conveyer belt, transporting warm waterand precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, currents regulate global climate,helping to counteract the uneven distribution of solar radiation reachingEarth's surface.
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