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TEMPERATURE

Degree of hotness of an object or a place.

It’s measured using 3 types of thermometers namely:

  1. Maximum thermometer
  2. Minimum thermometer
  3. Six’s thermometer

 

Maximum Thermometer

It’s used to measure the highest temperature reached in a day.

It uses mercury.

How It’s Used/Works

  • Temperature rises causing mercury to expand.
  • Mercury pushes the index up.
  • When temperature falls mercury contracts.
  • The maximum temperature is read from the scale at the lower end of the index.
  • Thermometer is reset by shaking it to force mercury back into the bulb.

 

Minimum Thermometer

It’s used to record the lowest temperature reached in a day.

It uses alcohol.

How it’s Used/Works

  • Temperature falls causing alcohol to contract.
  • Alcohol pulls the index down.
  • When temperature rises alcohol expands and rises in the tube.
  • The index remains where it was pulled.
  • Minimum temperature reading is obtained from the scale at the lower end of the index.
See also  WIND

 

Calculating Temperature

  1. Diurnal/daily Temperature range

-Difference between the maximum and minimum temperature for any one day.

  1. Mean Daily Temperature

– Average of the maximum and the minimum daily temperatures.

  1. Mean Monthly temperature

– Sum of mean daily temperatures in a month divided by the number of days in that month.

  1. Mean Monthly minimum Temperature

– Sum of daily minimum temperatures divided by the number of days in that month.

  1. Mean Monthly Maximum Temperature

– Sum of daily maximum temperatures divided by the number of days in that month.

  1. Mean Annual Temperature

– Sum of mean monthly temperatures divided by 12.

  1. Mean Annual Temperature Range

– Difference between the highest and the lowest mean monthly temperatures in a year.

  1. ◦k=◦c+273
  2. ◦F=(◦c×1.8)+32 derive the rest from the formulas.
See also  FACTORS INFLUENCING RAINFALL TYPES AND AMOUNTS

 

See also

BUSH FALLOWING IN WEST AFRICA

MINING

MINERALS IN EAST AFRICA

PROBLEMS ENCOUNTERED IN FIELD WORK

MINERALS AND ROCKS

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