Atmospheric Circulation and Weather Systems

Class 11 · Geography · 11 Questions

1(i)intermediate🔧 Apply1 markMCQ

If the surface air pressure is 1,000 mb, the air pressure at 1 km above the surface will be:

1(ii)beginner🧠 Remember1 markMCQ

The Inter Tropical Convergence Zone normally occurs:

1(iii)intermediate💡 Understand1 markMCQ

The direction of wind around a low pressure in northern hemisphere is:

1(iv)intermediate💡 Understand1 markMCQ

Which one of the following is the source region for the formation of air masses?

2(i)beginner💡 Understand3 marksShort Answer

What is the unit used in measuring pressure? Why is the pressure measured at station level reduced to the sea level in preparation of weather maps?

2(ii)intermediate🔍 Analyze3 marksShort Answer

While the pressure gradient force is from north to south, i.e. from the subtropical high pressure to the equator in the northern hemisphere, why are the winds north easterlies in the tropics.

2(iv)beginner💡 Understand3 marksShort Answer

Explain the land and sea breezes.

3(i)intermediate🔍 Analyze5 marksLong Answer

Discuss the factors affecting the speed and direction of wind.

3(iii)intermediate🔍 Analyze5 marksLong Answer

Why does tropical cyclone originate over the seas? In which part of the tropical cyclone do torrential rains and high velocity winds blow and why?

Project Work (i)intermediate🔧 Apply5 marksEssay

Collect weather information over media such as newspaper, TV and radio for understanding the weather systems.

Project Work (ii)intermediate🔍 Analyze5 marksEssay

Read the section on weather in any newspaper, preferably, one having a map showing a satellite picture. Mark the area of cloudiness. Attempt to infer the atmospheric circulation from the distribution of clouds. Compare the forecast given in the newspaper with the TV coverage, if you have access to TV. Estimate, how many days in a week was the forecast were accurate.