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Engineering Commons

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University of New Mexico

2019

Water resources

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The Collison Floating Evaporation Pan: Design, Validation, And Comparison, Jacob William Collison Jun 2019

The Collison Floating Evaporation Pan: Design, Validation, And Comparison, Jacob William Collison

Civil Engineering ETDs

Accurate tracking of open-water evaporative losses, one of the largest consumptive uses of water in the Southwestern USA, is increasingly important with anticipated climate shifts toward longer and more severe droughts. A new open-water evaporation technique, the Collison Floating Evaporation Pan, (CFEP), was tested on Cochiti Lake, New Mexico, USA for one year with objectives being: identify the limitations and potential solutions to evaporation techniques; deploy, test the reliability, and validity of the CFEP and evaluate uncertainties in standard evaporation techniques; and improvements over prior evaporation techniques. The CFEP provided reliable evaporation measurements during sustained winds greater than 20 m/s. …