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Volume 9, issue 1
Earth Syst. Sci. Data, 9, 15-29, 2017
https://doi.org/10.5194/essd-9-15-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Twenty-five years of operations of the Network for the Detection...

Earth Syst. Sci. Data, 9, 15-29, 2017
https://doi.org/10.5194/essd-9-15-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Review article 20 Jan 2017

Review article | 20 Jan 2017

Tropospheric water vapour isotopologue data (H216O, H218O, and HD16O) as obtained from NDACC/FTIR solar absorption spectra

Sabine Barthlott1, Matthias Schneider1, Frank Hase1, Thomas Blumenstock1, Matthäus Kiel1, Darko Dubravica1, Omaira E. García2, Eliezer Sepúlveda2, Gizaw Mengistu Tsidu3,4, Samuel Takele Kenea3,a, Michel Grutter5, Eddy F. Plaza-Medina5, Wolfgang Stremme5, Kim Strong6, Dan Weaver6, Mathias Palm7, Thorsten Warneke7, Justus Notholt7, Emmanuel Mahieu8, Christian Servais8, Nicholas Jones9, David W. T. Griffith9, Dan Smale10, and John Robinson10 Sabine Barthlott et al.
  • 1Institute of Meteorology and Climate Research (IMK-ASF), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
  • 2Izaña Atmospheric Research Center, Agencia Estatal de Meteorología (AEMET), Santa Cruz de Tenerife, Spain
  • 3Department of Physics, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
  • 4Botswana International University of Technology and Science (BIUST) Priv. Bag 16, Palapye, Botswana
  • 5Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, 04510 Mexico City, Mexico
  • 6Department of Physics, University of Toronto, Toronto, Ontario, Canada
  • 7Institute of Environmental Physics, University of Bremen, Bremen, Germany
  • 8Institute of Astrophysics and Geophysics, University of Liège, Liège, Belgium
  • 9Centre for Atmospheric Chemistry, University of Wollongong, Wollongong, New South Wales, Australia
  • 10National Institute of Water and Atmospheric Research, Lauder, New Zealand
  • anow at: Department of Physics, Samara University, P.O. Box 132, Samara, Ethiopia

Abstract. We report on the ground-based FTIR (Fourier transform infrared) tropospheric water vapour isotopologue remote sensing data that have been recently made available via the database of NDACC (Network for the Detection of Atmospheric Composition Change; ftp://ftp.cpc.ncep.noaa.gov/ndacc/MUSICA/) and via doi:10.5281/zenodo.48902. Currently, data are available for 12 globally distributed stations. They have been centrally retrieved and quality-filtered in the framework of the MUSICA project (MUlti-platform remote Sensing of Isotopologues for investigating the Cycle of Atmospheric water). We explain particularities of retrieving the water vapour isotopologue state (vertical distribution of H216O, H218O, and HD16O) and reveal the need for a new metadata template for archiving FTIR isotopologue data. We describe the format of different data components and give recommendations for correct data usage. Data are provided as two data types. The first type is best-suited for tropospheric water vapour distribution studies disregarding different isotopologues (comparison with radiosonde data, analyses of water vapour variability and trends, etc.). The second type is needed for analysing moisture pathways by means of H2O, δD-pair distributions.

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Tropospheric water vapour isotopologue distributions have been consistently generated and quality-filtered for 12 globally distributed ground-based FTIR sites. The products are provided as two data types. The first type is best-suited for tropospheric water vapour distribution studies. The second type is needed for analysing moisture pathways by means of {H2O,δD}-pair distributions. This paper describes the data types and gives recommendations for their correct usage.
Tropospheric water vapour isotopologue distributions have been consistently generated and...
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