Preprints
https://doi.org/10.5194/essd-2022-3
https://doi.org/10.5194/essd-2022-3
 
31 Jan 2022
31 Jan 2022
Status: this preprint is currently under review for the journal ESSD.

Isotopic measurements in water vapor, precipitation, and seawater during EUREC4A

Adriana Bailey1, Franziska Aemisegger2, Leonie Villiger2, Sebastian A. Los3, Gilles Reverdin4, Estefanía Quiñones Meléndez5, Claudia Acquistapace6, Dariusz B. Baranowski7, Tobias Böck6, Sandrine Bony8, Tobias Bordsdorff9, Derek Coffman10, Simon P. de Szoeke5, Christopher J. Diekmann11,a, Marina Dütsch12,13, Benjamin Ertl11,14, Joseph Galewsky3, Dean Henze5, Przemyslaw Makuch15, David Noone16,5, Patricia K. Quinn10, Michael ​​Rösch17, Andreas Schneider9,18, Matthias Schneider11, Sabrina Speich19, Bjorn Stevens20, and Elizabeth Thompson21 Adriana Bailey et al.
  • 1National Center for Atmospheric Research, Boulder, CO, USA
  • 2Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland
  • 3Department of Earth & Planetary Sciences, University of New Mexico, Albuquerque, NM, USA
  • 4Laboratoire d'Océanographie et du Climat: expérimentation et approches numériques (LOCEAN/IPSL), Sorbonne Université-CNRS-IRD-MNHN, Paris, France
  • 5College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, USA
  • 6Institute for Geophysics and Meteorology, University of Cologne, Köln, Germany
  • 7Institute of Geophysics Polish Academy of Sciences, Warsaw, Poland
  • 8Laboratoire de Météorologie Dynamique (LMD/IPSL), CNRS, Sorbonne University, Paris, France
  • 9Netherlands Institute for Space Research, SRON, Leiden, the Netherlands
  • 10NOAA Pacific Marine Environmental Laboratory (PMEL), Seattle, WA, USA
  • 11Institute of Meteorology and Climate Research (IMK-ASF), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
  • 12University of Vienna, Vienna, Austria
  • 13University of Washington, Seattle, WA, USA
  • 14Steinbuch Centre for Computing (SCC), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
  • 15Institute of Oceanology Polish Academy of Sciences, Sopot, Poland
  • 16Department of Physics, University of Auckland, Auckland, New Zealand
  • 17Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
  • 18Finnish Meteorological Institute, Sodankylä, Finland
  • 19LMD/IPSL, École Normale Supérieure, CNRS, Paris, France
  • 20Max Planck Institute for Meteorology, Hamburg, Germany
  • 21NOAA Physical Sciences Laboratory, Boulder, CO, USA
  • anow at: Telespazio Germany GmbH, Darmstadt, Germany

Abstract. In early 2020, an international team set out to investigate trade wind cumulus and their coupling to the large-scale circulation through the field campaign EUREC4A: ElUcidating the RolE of Clouds‐Circulation Coupling in ClimAte. Focused on the western tropical Atlantic near Barbados, EUREC4A deployed a number of innovative observational strategies, including a large network of water isotopic measurements, to study the tropical shallow convective environment. The goal of the isotopic measurements was to elucidate processes that regulate the hydroclimate state – for example, by identifying moisture sources, quantifying mixing between atmospheric layers, characterizing the microphysics that influence the formation and persistence of clouds and precipitation, and providing an extra constraint in the evaluation of numerical simulations. During EUREC4A, researchers deployed seven water vapor isotopic analyzers on two aircraft, on three ships, and at the Barbados Cloud Observatory (BCO). Precipitation was also collected for isotopic analysis at BCO and from aboard four ships. In addition, three ships collected seawater for isotopic analysis. All told, the in situ data span the period 5 January through 22 February 2020 and cover the approximate area 6 to 16° N and −50 to −60° W. Moreover, water vapor isotope ratios were measured from a few meters to nearly 8 km above sea level. This paper describes the full EUREC4A isotopic in situ data collection – providing extensive information about sampling strategies and data uncertainties – and also guides readers to complementary remotely sensed water vapor isotope ratios. DOIs for the multiple isotopic datasets are provided in Sect. 5 Data Availability.

Adriana Bailey et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2022-3', Mathieu Casado, 27 Feb 2022
  • RC2: 'Comment on essd-2022-3', Anonymous Referee #2, 23 May 2022
  • AC1: 'Comment on essd-2022-3', Adriana Bailey, 25 Jul 2022

Adriana Bailey et al.

Data sets

Calibrated stable water isotope data in precipitation from the R/V Maria Sybilla Merian during EUREC4A Villiger, L., Herbstritt, B., Acquistapace, C., Böck, T., & Aemisegger, F. https://doi.org/10.25326/243

Level-1 Continuous In-situ Water Vapor Isotopic Composition Galewsky, J. https://doi.org/10.25326/83

ATOMIC ship water vapor isotopic analyzer: Near-surface humidity and water vapor isotope ratios from aboard NOAA Ship Ronald H. Brown in the North Atlantic Ocean, near Barbados: Atlantic Tradewind Ocean-Atmosphere Mesoscale Interaction Campaign 2010-01-26 to 2020-02-10 (NCEI Accession 0225417) Bailey, A. and Noone, D. https://doi.org/10.25921/s76r-1n85

Calibrated stable water isotope in precipitation from the RV Atalante during EUREC4A-OA Villiger, L., Aemisegger, F., Reverdin, G., Demange, J., and Speich, S. https://doi.org/10.25326/305

Calibrated stable water vapour isotope measurements on board RV Atalante during EUREC4A-OA Villiger, L., Aemisegger, F., Reverdin, G., Demange, J., and Speich, S. https://doi.org/10.25326/304

Calibrated stable water vapour isotope measurements from the BCO during EUREC4A Villiger, L., Dütsch, M., Jansen, F., Mech, M., and Aemisegger, F. https://doi.org/10.25326/245

Calibrated stable water isotope data in precipitation from the BCO during EUREC4A Villiger, L., Herbstritt, B., Ringel, M., Stolla, M. K., Mech, M., Jansen, F., and Aemisegger, F. https://doi.org/10.25326/242

M161 Surface Seawater Isotopic Composition Galewsky, J. https://doi.org/10.25326/307

Rainwater isotope ratios from samples taken aboard NOAA Ship Ronald H. Brown in the North Atlantic Ocean, near Barbados: Atlantic Tradewind Ocean-Atmosphere Mesoscale Interaction Campaign 2010-01-05 to 2020-02-11 Quiñones Meléndez, E., de Szoeke, S. P., and Noone, D. https://doi.org/10.25921/bbje-6y41

TROPOMI total-column water vapor isotopologue pairs (a posteriori processing level 2b), customized subset for EUREC4A-iso Schneider, A. and Borsdorff, T. https://doi.org/10.25326/306

M161 Rainwater Isotopic Composition Galewsky, J. https://doi.org/10.25326/308

BCO LGR Water Vapor Isotopic Composition Galewsky, J. https://doi.org/10.25326/309

MUSICA IASI water isotopologue pair product (a posteriori processing version 2), customized subset for EUREC4A-iso Diekmann, C., Schneider, M., and Ertl, B. https://doi.org/10.25326/262

ATOMIC aircraft water vapor isotopic analyzer: Humidity and water vapor isotope ratios from aboard N43 aircraft in the North Atlantic Ocean, Barbados: Atlantic Tradewind Ocean-Atmosphere Mesoscale Interaction Campaign 2020-01-17 to 2020-02-11 (NCEI Accession 0220631) Bailey, A., Henze, D., and Noone, D. https://doi.org/10.25921/c5yx-7w29

Calibrated stable water vapour isotope measurements on board the ATR-42 during EUREC4A Aemisegger, F., Dütsch, M., Rösch, M., and Villiger, L. https://doi.org/10.25326/244

Adriana Bailey et al.

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Short summary
One of the novel ways EUREC4A set out to investigate trade wind clouds and their coupling to the large-scale circulation was through an extensive network of isotopic measurements in water vapor, precipitation, and seawater. Samples were taken from the island of Barbados, from aboard two aircraft, and from aboard four ships. This paper describes the full collection of EUREC4A isotopic in situ data and guides readers to complementary remotely sensed water vapor isotope ratios.