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Nature Conservancy and UC teams present mixed but improving field measurements of tailwater pumps and ET across Delta sites
Summary
The Nature Conservancy and UC researchers presented pressure‑transducer, insertion‑mag, energy‑use and eddy‑covariance results showing both promising alignment and problematic outliers; teams emphasized cross‑checking methods, calibration, and further QA/QC before scaling conclusions.
The Nature Conservancy (TNC) and UC research teams presented recent field results from tailwater pump monitoring and multi‑tower eddy‑covariance experiments designed to improve estimates of pump discharge, evapotranspiration (ET) and water budgets on Delta islands.
TNC tailwater monitoring: multiple lines of evidence
Kirk Klausmeier, with TNC, described measuring tailwater pump volumes using pump tests, energy (PG&E) bills, pressure transducers, insertion mag meters and level sensors. He summarized where the lines of evidence aligned and where they did not: some pumps produced consistent timing and magnitudes…
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