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THE STEVENSON SCREEN

Geography

A white wooden box mounted on 4 legs used to house thermometers and hygrometers. The instruments which are found in it are:

  1. Maximum thermometer
  2. Minimum thermometer
  3. Six’s thermometer
  4. hygrometer-wet bulb and dry bulb thermometer

Importance

  1. Provide shade conditions for accurate temperature recording.
  2. Ensure safety of thermometers because they are delicate.

 

Qualifications Which Make Stevenson Screen Suitable For Its Work

  1. Painted white for little absorption of solar heat energy.
  2. Made of wood which is a bad conductor of heat.
  3. Well ventilated to allow easier flow of air inside it.
  4. Raised to prevent contact with terrestrial radiation.
  5. Has double roof which acts as an insulator to prevent direct heating from the sun.

Recording and Calculating Weather Conditions

See also

BUSH FALLOWING IN WEST AFRICA

MINING

MINERALS IN EAST AFRICA

PROBLEMS ENCOUNTERED IN FIELD WORK

 

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