Reclamation Information Sharing Environment (RISE)

This research tested a new method of estimating open-water evaporation, the Collison Floating Evaporation Pan (CFEP), on Lake Powell, UT-AZ and Cochiti Lake, NM between 2018 and 2020. Results were compared to existing open-water estimation methods at both locations. The CFEP was shown to be a robust, accurate, and cost-effective solution to estimating open-water evaporation on lakes and reservoirs that is applicable Reclamation wide.