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May 31, 2026Journal of Hydrology0 citationsOpen Access

Open canal evaporation in an arid urban environment in Arizona estimated with measurements of water isotopes

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RQRafat QubajaWeizmann Institute of ScienceEVEnrique R. VivoniState Hydrological InstituteMMMurray MoinesterTel Aviv University

Key Points

  • The research aims to estimate canal evaporation in an arid urban environment using water isotope measurements.
  • Utilized an isotope enrichment model to estimate evaporation rates.
  • Measured annual evaporative losses in open canals.
  • Compared isotope-based estimates with pan evaporation measurements.
  • Estimated annual evaporative losses of 5.2 ± 2.3% and 3.3 ± 1.5% in open canals.
  • Observed maximum canal evaporation of 8.5% during peak seasons.
  • Isotope measurements aligned with pan evaporation data.

Abstract

• We estimated canal evaporation in an arid urban area with an isotope enrichment model. • Annual evaporative losses of 5.2 ± 2.3% and 3.3 ± 1.5% were obtained in open canals. • High seasonality was noted in canal evaporation, which a maximum value of 8.5%. • Isotope-based evaporation estimates were consistent with pan evaporation measurements.

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Cite This Study

Qubaja et al. (2026) studied this question.

synapsesocial.com/papers/6a1bd0155783ba022b6fbf8bhttps://doi.org/10.1016/j.jhydrol.2026.135765
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