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Endmember splitting and mixing analysis
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Description
Uses stable isotope ratios (δ²H and δ¹⁸O) of precipitation and streamflow to quantify the relative contributions of snow versus rain to streamflow and evapotranspiration through endmember mixing and splitting analyses.
Typical Equipment
- Model 3700 automatic samplers (Teledyne ISCO, NE, USA)
- 2-cm mineral oil pre-filled bottles
- 0.45-μm PVDF membrane filters (EMD Millipore Corp.)
- Picarro L2130-i
- Los Gatos Research Liquid Water Isotope Analyzer
Output Measurements
- fraction of snow in streamflow
- fraction of rain in streamflow
- fraction partitioning to evapotranspiration
Papers Using This Protocol (4)
article
Stream water sourcing from high-elevation snowpack inferred from stable isotopes of water: a novel application of d-excess values
article
Variability in observed stable water isotopes in snowpack across a mountainous watershed in Colorado
article
Variability of Snow and Rainfall Partitioning Into Evapotranspiration and Summer Runoff Across Nine Mountainous Catchments
article