Introduction
20 words
Main Body
Features of Monsoon:
(i) Annual phenomena - occurs every year
(ii) Bidirectional winds - moisture comes in 4 directions mostly
(iii) Summer marine rainfall - with 90% rainfall contribution (Cy work)
(iv) Vegetative growth - influences Deciduous and moist forests; Evergreen forests in western states and North east India
(v) Loose water as it moves inwards due to orographic nature
Casative Factors:
(i) Pressure Gradient Theory:
a) India gets warmer in summer
b) Air expands → low pressure created
c) Air surrounding from oceans brings rains
(ii) Jet Stream Theory:
a) Monsoon is caused by the intertropical convergence zone
b) The zone moves North in summers, resulting in circular (clockwise) movement of winds
c) The advent and departure also depends on the subtropical jet stream
— HARSHDEEP SAGAR · AIR 299
Conclusion
17 words
- Clearly identifies time period of monsoon (June-September)
- Explains both directional (bidirectional) and precipitation aspects
- Links monsoon to vegetation patterns
- Covers two major theoretical explanations
- Shows understanding of atmospheric circulation patterns
HARSHDEEP SAGAR
Indian Monsoon System
Characteristics and causes of Indian monsoons
Features and casative factors of monsoons
162
Total words
5
Paragraphs
Explanatory and descriptive
Tone