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Examine the uneven distribution of temperature over the earth's surface. - Leaving Cert Geography - Question 22 - 2014
Question 22
Examine the uneven distribution of temperature over the earth's surface.
Worked Solution & Example Answer:Examine the uneven distribution of temperature over the earth's surface. - Leaving Cert Geography - Question 22 - 2014
Step 1
Identifying Aspect 1: Solar Radiation
Answer
Solar radiation is not evenly distributed across the Earth's surface due to the curvature of the Earth. Equatorial regions receive more direct sunlight throughout the year, while polar regions receive sunlight at a lower angle. This results in higher temperatures at the equator compared to the poles and contributes to overall climatic differences.
Step 2
Identifying Aspect 2: Ocean Currents
Answer
Ocean currents play a significant role in distributing heat across the planet. Warm currents, such as the Gulf Stream, can raise temperatures in coastal regions, while cold currents can lower temperatures in other areas. This leads to variations in climate and temperature even at similar latitudes.
Step 3
Identifying Aspect 3: Altitude Effects
Answer
Altitude has a pronounced effect on temperature distribution. As altitude increases, temperature generally decreases due to the thinning atmosphere. This results in cooler conditions in mountains compared to surrounding low-altitude areas, illustrating how topography influences temperature variations.