Stable water vapour isotope data from BCO for EUREC4A 20200113_00 till 20200218_00
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Level 1 data:
- Picarro cavity ring-down spectrometer installed at BCO, version L1115 from 2010, setup schematic setup_EUREC4A_BCO_PICARRO_WVISOS.jpg
- postprocessed following Aemisegger et al., 2012
- VSMOW-SLAP normalisation according to IAEA, 2017
- Standards isotope composition: STANDARD 1, d18O: -11.5 pm 0.2, d2H: -80.0 pm 0.6; STANDARD 2, d18O: 3.6 pm 0.4, d2H: 14.89 pm 0.61, values in permil
- Samples from standard calibration runs were taken during campaign but have not yet been measured in the lab, will be incldued for level 2 data
- NaN values for missing data points due to instrument failure or calibration runs



Variables on files:
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time in seconds since 19700101_00
d18O and d18Os in permil, 1 min mean and standard deviation
d2H and d2Hs in permil, 1 min mean and standard deviation
dexc and dexcs in permil, 1 min mean and standard deviation
H2O and H2Os in ppmv, 1 min mean and standard deviation
q and qs in g/kg, 1 min mean and standard deviation
lat in deg N
lon in deg W


Contacts for questions:
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Franziska Aemisegger: franziska.aemisegger@env.ethz.ch
Leonie Villiger: leonie.villiger@env.ethz.ch

References:
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Aemisegger, F., Sturm, P., Graf, P., Sodemann, H., Pfahl, S., Knohl, A., and Wernli, H.: Measuring variations of δ18O and δ2H in atmospheric water vapour using two commercial laser-based spectrometers: an instrument characterisation study, Atmos. Meas. Tech., 5, 1491-1511, https://doi.org/10.5194/amt-5-1491-2012, 2012.

IAEA, Reference sheet for international measurement standards, VSMOW2-SLAP2,
https://nucleus.iaea.org/rpst/Documents/VSMOW2_SLAP2.pdf, 2017.