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Insolation and Temperature - Indian Geography, UPSC IAS Exam Preparation Video Lecture | Geography (Prelims) by Valor Academy

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FAQs on Insolation and Temperature - Indian Geography, UPSC IAS Exam Preparation Video Lecture - Geography (Prelims) by Valor Academy

1. What is insolation and how does it influence temperature in Indian geography?
Ans. Insolation refers to the incoming solar radiation received on the Earth's surface. In Indian geography, insolation plays a crucial role in determining temperature patterns. As the sun's rays hit the Earth's surface, they heat up different regions differently due to variations in latitude, altitude, and atmospheric conditions. This differential heating leads to variations in temperature across India.
2. How does the intensity of insolation vary in different regions of India?
Ans. The intensity of insolation varies in different regions of India due to various factors. Generally, the regions closer to the equator receive higher insolation as the sun's rays strike the Earth more directly. In contrast, regions farther away from the equator receive lower insolation as the sun's rays are more slanted. Additionally, factors such as cloud cover, atmospheric pollution, and geographical features like mountains can also influence the intensity of insolation.
3. What are the effects of insolation on temperature in India?
Ans. Insolation significantly affects temperature patterns in India. Regions receiving higher insolation tend to have higher temperatures, while regions with lower insolation experience comparatively cooler temperatures. This is why southern India, which is closer to the equator, generally has higher temperatures than northern India. The distribution of insolation also contributes to the formation of climatic zones in India, such as the tropical, subtropical, and temperate regions.
4. How does the monsoon season impact insolation and temperature in India?
Ans. The monsoon season in India has a significant impact on both insolation and temperature. During the monsoon, cloud cover increases, leading to reduced insolation in many parts of the country. This decrease in insolation results in cooler temperatures during the monsoon season. Additionally, the southwest monsoon brings rainfall, which further contributes to the cooling effect. However, after the monsoon season, as cloud cover reduces, insolation increases, and temperatures gradually rise again.
5. Are there any geographic factors that influence the distribution of insolation and temperature in India?
Ans. Yes, several geographic factors influence the distribution of insolation and temperature in India. The Himalayan mountain range acts as a barrier, preventing the penetration of sunlight and reducing insolation in northern India. The Western Ghats and the Eastern Ghats also affect the distribution of insolation and temperature by intercepting the moisture-laden winds from the Arabian Sea and the Bay of Bengal, respectively. These geographic features contribute to the regional variations in insolation and temperature across India.
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