Temperature-Insolation, Heat Transfer, 3 Lapse Rate & 4 Scales in Climatology YouTube Lecture Handouts

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Temperature - Insolation, Heat Transfer, 3 Lapse Rate & 4 Scales in Climatology


  • It is a physical quantity.
  • That expresses the subjective perceptions of hot and cold.
  • Measured with a thermometer.
  • Historically standardised in various temperature scales and units of measurement.
  • Most commonly used scales are the Celsius scale


  • It is the solar radiation that reaches the earth՚s surface.
  • Measured by the amount of solar energy received per square centimetre per minute.

Factors Affecting Insolation

Factors Affectin Insolation

Variation in Solar Insolation

Local variations in the atmosphere such as water vapour, clouds, and pollution; latitude of the location.

Variation in Solar Insolation

Radiation, Conduction & Convection

Heat transfer can be grouped into three broad categories:

  • Conduction
  • Convection
  • Radiation
Radiation, Conduction and Convection

Vertical & Horizontal Temperature Distribution

Vertical and Horizontal Temperature Distribution
Layers of Earths Atmosphere

Dew Point and Cloud Formation

Dew Point and Cloud Formation

Atmospheric Temperature

Atmospheric Temperature

Scales of Temperature

Table of Scales of Temperature
from Kelvin

Next Class - Temperature Inversion

Temperature Inversion

Further Next – Tibetan Plateau (Latest Developments)

Tibetan Plateau

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