Range : E-pan

Evaporation pan is a is a simple meteorological instrument used to measure the rate of evaporation from an open water surface.

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Pan evaporation measurements enable farmers and ranchers to understand how much water their crops will need.


  • It’s shallow, flat-bottomed pan typically made of materials like galvanized iron
  • The best known of the pans are the “”Class A”” evaporation pan


  • Made of galvanized iron measuring 25.4cm in height and 120.7cm in diameter
  • The interior and exterior need to be painted in white in order to absorb solar radiation more efficiently, heat up quicker, and thus evaporate faster
  • There is a wooden support used as a base for the pan