thule_snowfence_soil_stem_water_isotope_2012.xls

2H and 18O isotopic composition of water extracted from soils and stems. Samples collected in various plots representing high snow deposition and ambient snow in response to a snow fence. Snow fence was installed in 2003, samples collected in 2012 Deep snow plots had approximately 74 cm of snow covering them. Ambient snow plots were 23 cm deep. Picarro L2130 18O/2H CRDS w/IM induction module, manual injection of samples w/o vaporizer. Samples were collected six days during 2012. Samples are analyzed by placing a a section of stem in a metal clip, or a soil sample in a metal tube and sealing the sample in a glass vial. The IM module then vaporizes water in the sample and passes the gas to the CRDS. Three reps of every sample were measured but only the last used to minimize memory effects. Values are relative to Mean Ocean Water VSMOW standard, instrument working standards were VSMOW and GISP. MS Excel (.xls). Worksheets for different dates in 2012. All worksheets have the same columns: type of analysis, day of year for sample collection, sample type, rep, depth for soil sample, 18O, 2H. Plots 1-3 are +snow, plots 4-6 are ambient snow.