PPT: Heat Budget | Geography for UPSC CSE PDF Download

 Page 1


GEOGRAPHY 
CRASH COURSE
CAPSTONE IAS LEARNING
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GEOGRAPHY 
CRASH COURSE
CAPSTONE IAS LEARNING
Factors Affecting Temperature Distribution
The Angle of Incidence or the Inclination of the Sun’s 
Rays
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GEOGRAPHY 
CRASH COURSE
CAPSTONE IAS LEARNING
Factors Affecting Temperature Distribution
The Angle of Incidence or the Inclination of the Sun’s 
Rays
• Prevailing Winds
• Land-Sea 
Differential
• Transparency of 
Atmosphere
• Duration of 
Sunshine
• Aspects of Slope
Page 4


GEOGRAPHY 
CRASH COURSE
CAPSTONE IAS LEARNING
Factors Affecting Temperature Distribution
The Angle of Incidence or the Inclination of the Sun’s 
Rays
• Prevailing Winds
• Land-Sea 
Differential
• Transparency of 
Atmosphere
• Duration of 
Sunshine
• Aspects of Slope
Heat Budget
Page 5


GEOGRAPHY 
CRASH COURSE
CAPSTONE IAS LEARNING
Factors Affecting Temperature Distribution
The Angle of Incidence or the Inclination of the Sun’s 
Rays
• Prevailing Winds
• Land-Sea 
Differential
• Transparency of 
Atmosphere
• Duration of 
Sunshine
• Aspects of Slope
Heat Budget
Latitudinal Heat Balance
• The amount of insolation received varies from latitude to latitude.
• Regions within the equator and 40° N and S latitudes receive 
abundant sunlight and hence more heat will be gained than lost. 
Hence they are energy surplus regions.
• Regions beyond 40° N and S latitudes lose more heat than that 
gained from sunlight. Hence they are energy deficit regions (This 
is because of slant sunlight and high albedo of polar regions).
• Going by this logic, the tropics should have been getting 
progressively hotter and the poles getting progressively cooler. And 
the planet would have been inhospitable except for few regions near 
mid-latitudes. But, in reality, this does not happen.