Stable isotopes of water and specific conductance reveal complimentary information on streamflow generation in snowmelt-dominated, seasonally arid watersheds

•Event water dominates snowmelt, while pre-event water dominates during rain events.•Specific conductance as a tracer had less uncertainty than stable water isotopes.•lc-excess was correlated to diurnal snowmelt contributions during the rising limb.•Isotope composition was positively correlated to elevation during low flow periods.