ATMOSPHERIC CIRCULATION AND WEATHER SYSTEM

FUNDAMENTAL OF PHYSICAL GEOGRAPHY
ATIMOSPHERIC CIRCULATION AND WEATHER SYSTEM

1. What are periodic winds? 
2. What is an Air mass?   
3. What are Seasonal winds?
4. Define the following terms: doldrums, Jet Stream, Geostrophic winds and pressure gradient. 
5. Why does the air rise at the Inter Tropical Convergence Zone (ITCZ)   ? 
6. Define the term “LOO”, is Mistral and chinooks? 
7. Name the four types of fronts formed by air masses and explain them with the help of suitable diagram.
8. Name the five major source regions over which air masses are formed.
9. Name the instrument used for measuring air pressure. Also mention the unit of expressing air pressure. 
10. What will be the pressure condition at the centre and the pattern of wind direction for a cyclone?
11. Explain the term Roaring forties and Horse Latitude and thunderstorms.
12. Define tropical cyclones and state the conditions favourable for the formation of these cyclones. 
13. Give the characteristic features of tropical and extra tropical cyclones.