Stable water vapor isotope data from RV Meteor for M161 EUREC4A 18.01.2020 00:01:00 - 22.02.2020 00:00:00
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Level 1 data:
- Picarro L2130-i cavity ring-down spectrometer deployed aboard the Research Vessel Meteor during cruise M161
- Inlet sampled relatively undisturbed air from above the air chemistry lab with a forward facing fetch (above the bow)
- Inlet sampling height was 25.8 m above the mean sea surface
- Inlet line of 505 cm length was heated to prevent condensation
- Periods with between 120 and 250 degrees relative to the bow were excluded (masked) to avoid contamination by ship emissions
- Daily calibration runs were done throughout the cruise using a rotation of four reference standards
- Post-processing includes concentration dependence corrections and VSMOW-SLAP normalisation
- NaN values for missing data points due to instrument issues, calibration runs, wind mask. Fill Value 9.969209968386869e+36
- Uncertainties are not currently included but will be added later

Variables on files:
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time, seconds since 01.01.2020 00:00:00 (UTC)
latitude, deg N, 1 min mean
longitude,  deg E, 1 min mean
h2o_ppmv, Water vapor concentration ppmv, 1 min mean
qh2o, Specific humidity g/kg, 1 min mean
delta_18_16 Oxygen ratio (18/16)in permil, 1 min mean
delta_D, Deuterium/Hydrogen (D/H) ratio in permil, 1 min mean

Contacts for questions:
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Joseph Galewsky: galewsky@unm.edu
Sebastian Los: slos@unm.edu