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Technical Memorandum No. ENV-2023-007: Evaporation from Lake Powell: In-situ Monitoring between 2018 and 2021

Published by Bureau of Reclamation | Department of the Interior | Metadata Last Checked: January 06, 2026 | Last Modified: 2023-01-19T18:01:12Z
This report presents hydrometeorological observations and estimates of reservoir evaporation from two monitoring locations at Lake Powell from November 2018 to December 2021. We compare evaporation estimates from two independent methods, aerodynamic mass transfer and eddy covariance, to provide updated reservoir evaporation estimates based on best available science and methodologies.

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