Convection Model Questions 1. Describe what happen to the hot (red) water. 2. De
ID: 119937 • Letter: C
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Convection Model Questions 1. Describe what happen to the hot (red) water. 2. Describe what happens to the cold (blue) water. .Does the hot water initially rise or sink? Why? 4. To what latitude on the Earth does the hot water bottle correspond? What physical processes cause the air to be hot at that latitude (remember last week's lab)? Water Vapor Questions 1. At which latitudes do you tend to see dry air (black areas)? 2. At which latitudes do you tend to see moist air (relatively white areas)? 3. At which latitudes does the moisture tend to move from east to west (easterly winds)? 4. At which latitudes does the moisture tend to move from west to east (westerly winds)?Explanation / Answer
Convection model:
1. The hot water does not sink or mix with the existing water. A gradient is formed and the hot water remains at the top of the liquid mix in the absence of any turbulence. This happens because the hot water is lighter and thus rises up.
2. The cold water does not rise at all and settles at the bottom. This happens because the cold water is heavier with more density and hence settles at the bottom.
3. The hot water never sinks. However, there is a small amount that comes below the jet due to the turbulence created during the release of the jet.
4. The warm waters of the Persian Gulf or similar oceans of low latitude correspond to the hot bottle. This happens in the tropical regions with low latitudes. The solar energy is the major driver behind the heating up of air. The Sun radiates heat that strikes the surface of the Earth, and the surface gets warm. The air molecules nearby touch the surface and absorb some of the heat energy. The layer of air close to the surface gets warmer and the warm air then rises upward. The proximity to the ocean also plays an important role as the ocean water holds more heat energy.
Water Vapour:
1. As apparent in the image, the dry air tends to get concentrated near the equator. Therefore the tropical regions contain most of the dry air.
2. The moist air tends to get concentrated at the higher latitudes regions like temperate and polar. The main reason behind this is the lower solar radiation received by these regions.
3. The winds flow because of the difference in pressure. The existing pattern suggests that the easterly winds (from east to west) can be found in the tropics, near the Earth's equator.
4. The westerly winds seem to be predominated at middle latitudes between 30 and 60 degrees. They originate from the high-pressure areas in the horse latitudes and tend towards the poles.
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