UPSC Exam  >  UPSC Notes  >  Geography Optional for UPSC  >  Humidity and Pericipitation

Humidity and Pericipitation | Geography Optional for UPSC PDF Download

Download, print and study this document offline
303 videos|635 docs|252 tests

FAQs on Humidity and Pericipitation - Geography Optional for UPSC

1. What are atmospheric circulations and how do they affect weather patterns?
Ans. Atmospheric circulations refer to the large-scale movement of air in the Earth's atmosphere, which is driven by factors such as temperature differences, the Earth's rotation, and the distribution of land and water. These circulations create wind patterns that influence weather conditions, including precipitation and temperature variations. For instance, the trade winds, westerlies, and polar easterlies are all part of the atmospheric circulation system that helps distribute heat and moisture around the globe.
2. What are the major pressure belts in the atmosphere?
Ans. The major pressure belts in the atmosphere include the Equatorial Low (Doldrums), Subtropical Highs, Subpolar Lows, and Polar Highs. The Equatorial Low is characterized by low pressure and is associated with rising air, leading to heavy rainfall. Subtropical Highs are areas of high pressure that result in dry conditions, while Subpolar Lows are associated with stormy weather due to the meeting of warm and cold air masses. Polar Highs are regions of cold, dense air that create stable, dry conditions.
3. How do pressure belts influence global climate?
Ans. Pressure belts play a crucial role in shaping global climate by affecting wind patterns and precipitation distribution. For example, the presence of the Subtropical Highs leads to arid conditions in regions like the Sahara Desert, while the Equatorial Low contributes to the humid and rainy climates found in tropical rainforests. The shifts in these pressure belts due to climate change can alter weather patterns, causing extreme weather events in different parts of the world.
4. What is the significance of the Coriolis effect in atmospheric circulation?
Ans. The Coriolis effect is the apparent deflection of moving objects, including air masses, due to the rotation of the Earth. This effect causes winds in the Northern Hemisphere to curve to the right and winds in the Southern Hemisphere to curve to the left. The Coriolis effect is significant in atmospheric circulation as it influences the direction of trade winds, westerlies, and ocean currents, thereby affecting weather systems and climate patterns globally.
5. How can understanding atmospheric circulations and pressure belts help in weather forecasting?
Ans. Understanding atmospheric circulations and pressure belts is essential for accurate weather forecasting as it allows meteorologists to predict wind patterns, storm tracks, and precipitation levels. By analyzing the positions and movements of pressure systems, forecasters can anticipate changes in weather conditions, such as the onset of storms or prolonged dry spells. This knowledge helps in preparing for extreme weather events, thereby aiding in disaster management and response efforts.
Related Searches

Important questions

,

Humidity and Pericipitation | Geography Optional for UPSC

,

Extra Questions

,

Summary

,

practice quizzes

,

mock tests for examination

,

Exam

,

Sample Paper

,

Free

,

Semester Notes

,

study material

,

past year papers

,

pdf

,

Viva Questions

,

Humidity and Pericipitation | Geography Optional for UPSC

,

video lectures

,

MCQs

,

Previous Year Questions with Solutions

,

Objective type Questions

,

shortcuts and tricks

,

ppt

,

Humidity and Pericipitation | Geography Optional for UPSC

;