Deuterium-excess analysis

Knowledge graph centered on Deuterium-excess analysis with 15 nodes and 34 connections. Top connected: mountain hydrology, Stream water sourcing from high-elevation snowpack, stable water isotopes, Snow pit stable isotope sampling, end-member mixing analysis.

Method synopsis

Application of d-excess calculations (δ²H - 8·δ¹⁸O) as a novel tracer for identifying high-elevation snowmelt contributions to streamflow based on elevation-dependent isotopic fractionation patterns.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure as described in the canonical source

Steps below were extracted from the paper that introduces this protocol — Stream water sourcing from high-elevation snowpack inferred from stable isotopes of water: a novel application of d-excess values (2024), Hydrology and Earth System Sciences. Implementations in other papers (listed below) may differ.

1. D-excess calculation and analysis
   Deuterium-excess calculated as d-excess = δ²H - 8·δ¹⁸O for all water samples. Linear regression analyses performed to examine relationships between d-excess and elevation, with Pearson correlations calculated.
   Quantities: All samples processed for d-excess calculationsDuration: Post-collection data analysisConditions: Statistical analysis conditions
   Equipment: statistical analysis software

Typical Equipment

• statistical analysis software

Output Measurements

• d-excess values
• elevation correlations

Papers Using This Protocol (1)