Question

the distribution of temperatures on earth surface is not uniform.
give reasons​

Answer 1

Answer:

The factors that affects temperature are altitude, latitude and distance from sea. The height measured from sea level is called altitude. When the latitude increases, the distant from the sun also increases, so the temperature gradually decreases.

Explanation:

1. LATITUDE

the angle of incidence of sun’s rays goes on decreasing from the equator towards the poles.

Higher the angle of incidence, higher is the temperature. Similarly, lower the angle of incidence, lower is the temperature.

This is why the temperature is higher near the tropical regions and decreases towards the poles.

2. ALTITUDE

As we all know, the temperature in the troposphere goes on decreasing with increase in height.

Temperature decreases at an average rate of nearly 6 degree Celsius per 1000 m altitude, which is known as Normal Lapse Rate.

3. LAND AND SEA CONTRAST

Compared to land, the sea gets heated slowly and loses heat slowly. Land heats up and cools down quickly.

As a result, the temperature is relatively higher on land during day time and it is higher in water during the night.

Also, the places situated near the sea come under the moderating influence of the sea and land breezes which moderates the temperature.

There are also seasonal variations in the temperature of land and sea. During summer, the air above land has a higher temperature than the oceans. But the air above oceans gets higher temperature than landmass in winter.

Notwithstanding the great contrast between land and water surfaces, there are differences in the rate of heating of different land surfaces. A snow-covered land as in polar areas warms very slowly because of a large amount of reflection of solar energy. A vegetation covered land does not get excessively heated because a great amount of insolation is used in evaporating water from the plants.

4. OCEAN CURRENTS

Warm currents make the coasts along which they flow warmer, while cold currents reduce the temperature of the coasts along which they flow.

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Answer 2

Answer:

Sun is the ultimate source of heat. And the differential heat received from sun by different regions on earth is the ultimate reason behind all climatic features. So understanding the patterns of distribution of temperature in different seasons is important for understanding various climatic features like wind systems, pressure systems, precipitation etc..

Explanation:

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