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Sci Data. 2017 Jan 17;4:160128. doi: 10.1038/sdata.2016.128.

Stable isotopes in the atmospheric marine boundary layer water vapour over the Atlantic Ocean, 2012-2015.

Author information

1
Institute of Earth Sciences, University of Iceland, Reykjavik, Iceland.
2
LOCEAN, Sorbonne Universités, UPMC/CNRS/IRD/MNHN, Paris, France.
3
Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Denmark.
4
Department of Earth and Environmental Sciences, University of Illinois, Chicago, Illinois, USA.
5
LEGOS, UMR 5566 (University of Toulouse, CNES, CNRS, IRD, UPS), Institut de Recherche pour le Développement (IRD), CS 10070, 29280 Plouzané, France.
6
LATMOS-IPSL, Universite Pierre et Marie Curie, Paris, France.
7
Aix-Marseille Université, CNRS/INSU, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, 13288 Marseille, France.
8
US191-Imago, Institut de Recherche pour le Développement (IRD), BP 70, 29280 Plouzané, France.
9
Bermuda Institute of Ocean Sciences, St George's GE 01, Bermuda.
10
IFREMER, UMR 6523 LOPS (CNRS/IFREMER/IRD/UBO), CS 10070, 29280 Plouzané, France.

Abstract

The water vapour isotopic composition (1H216O, H218O and 1H2H16O) of the Atlantic marine boundary layer has been measured from 5 research vessels between 2012 and 2015. Using laser spectroscopy analysers, measurements have been carried out continuously on samples collected 10-20 meter above sea level. All the datasets have been carefully calibrated against the international VSMOW-SLAP scale following the same protocol to build a homogeneous dataset covering the Atlantic Ocean between 4°S to 63°N. In addition, standard meteorological variables have been measured continuously, including sea surface temperatures using calibrated Thermo-Salinograph for most cruises. All calibrated observations are provided with 15-minute resolution. We also provide 6-hourly data to allow easier comparisons with simulations from the isotope-enabled Global Circulation Models. In addition, backwards trajectories from the HYSPLIT model are supplied every 6-hours for the position of our measurements.

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