Class 11 Geography - KERALA
Climate
The chapter 'Climate' in Class 11 Geography (Kerala SCERT) explores the atmospheric conditions that shape the weather and climate of India and specifically Kerala. Students will learn about the concepts of weather versus climate, the factors influencing Indian climate including latitude, altitude, pressure winds, and relief, and the crucial mechanism of the Indian Monsoon. The chapter also covers the ITCZ, jet streams, El Nino, and the seasonal rhythm of the Indian climate. Understanding these concepts is vital for board exams as questions frequently test the working of the monsoon and climatic controls.
Start Learning FreeKey Concepts
Weather
The momentary state of the atmosphere over an area at any given point in time.
Climate
The aggregate of weather conditions and variations over a large area for a long period of time, usually 30 years or more.
Monsoon
A seasonal reversal of wind direction accompanied by corresponding changes in precipitation, heavily influencing South Asia.
ITCZ (Inter Tropical Convergence Zone)
A low-pressure zone located at the equator where trade winds converge, shifting north and south with the apparent movement of the Sun.
El Nino
A warm ocean current that temporarily replaces the cold Peruvian current, weakening the Indian monsoon and causing droughts.
Important Formulas
Board Exam Info
This chapter carries around 8 to 12 marks in the Kerala SCERT Class 11 Geography board examination. Common question types include short notes on the mechanism of the monsoon, differentiating between weather and climate, explaining factors affecting Indian climate, and reasons for spatial variations in rainfall.
Frequently Asked Questions
What is the difference between weather and climate?
Weather is short-term atmospheric condition changing day-to-day, while climate is the long-term average pattern of weather over 30 years or more.
How does the Himalayas influence the climate of India?
The Himalayas act as a massive climatic barrier, blocking freezing winds from Central Asia from entering India and trapping the monsoon winds to cause heavy rainfall within the subcontinent.
What causes the onset of the Southwest Monsoon in Kerala?
Intense heating of the Indian subcontinent during summer creates a low-pressure area, drawing moisture-laden winds from the Indian Ocean towards the mainland, hitting Kerala first in early June.
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