Research and analysis

Estimation of evaporation from open water

A study to evaluate current methods of estimating open water evaporation.

Document

Estimation of Evaporation From Open Water

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Details

Estimates of evaporation from open water are increasingly required for several Environment Agency functions, particularly Water Resources and Ecology. Current methods of estimation vary between and, in some cases, within Regions; there is no generally adopted best method. Consequently, there is a need to review the Environment Agency’s requirements for estimating open water evaporation in relation to the methods and data available.

The aims of this project are to:

  • evaluate current methods of estimating open water evaporation
  • recommend the best available practicable methodologies for producing robust estimates;
  • assess the associated uncertainty of these methodologies.
Published 1 January 2001