Articles | Volume 17, issue 9
https://doi.org/10.5194/essd-17-4901-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-17-4901-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Data description paper
| 
26 Sep 2025
Data description paper |
| 26 Sep 2025
| 26 Sep 2025
Observational ozone datasets over the global oceans and polar regions (version 2024)
Yugo Kanaya
CORRESPONDING AUTHOR
Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Kanagawa, Japan
Roberto Sommariva
School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, UK
School of Chemistry, University of Leicester, Leicester, UK
Alfonso Saiz-Lopez
Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Blas Cabrera, CSIC, Madrid, Spain
Andrea Mazzeo
Lancaster Environment Centre, Lancaster University, Lancaster, UK
Theodore K. Koenig
State Key Joint Laboratory of Environmental Simulation and Pollution Control, BIC-ESAT and IJRC, College of Environmental Sciences and Engineering, Peking University, Beijing, China
now at: Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong SAR, China
Kaori Kawana
Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Kanagawa, Japan
now at: Institute of Chemical Engineering Sciences, Foundation for Research and Technology – Hellas (FORTH/ICE-HT), Patras, Greece
now at: School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
James E. Johnson
Cooperative Institute for Climate, Ocean, and Ecosystem Studies, University of Washington, Seattle, WA, USA
NOAA Pacific Marine Environmental Laboratory, Seattle, WA, USA
Aurélie Colomb
LAMP, Laboratoire de Météorologie Physique, UMR 6016, Université Clermont Auvergne, CNRS, Aubière, France
Pierre Tulet
LAERO, Laboratoire d'Aérologie, UMR 5560 CNRS, UT3, IRD, Toulouse, France
Suzie Molloy
Climate, Atmosphere & Ocean Interactions program, Environment Research Unit, CSIRO, Aspendale, Victoria, Australia
Ian E. Galbally
CSIRO Environment, Aspendale, Victoria, Australia
Rainer Volkamer
Department of Chemistry, University of Colorado Boulder, Boulder, CO, USA
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA
Anoop Mahajan
Centre for Climate Change Research, Indian Institute of Tropical Meteorology, Pashan, Pune, India
John W. Halfacre
Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York, UK
Paul B. Shepson
School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, USA
Julia Schmale
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne, EPFL Valais Wallis, Sion, Switzerland
Hélène Angot
Université Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, IGE, Grenoble, France
Byron Blomquist
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA
Matthew D. Shupe
National Oceanic and Atmospheric Administration, Physical Sciences Laboratory, Boulder, CO, USA
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA
Detlev Helmig
Boulder A.I.R. LLC, Boulder, CO, USA
Junsu Gil
Department of Earth and Environmental Sciences, Korea University, Seoul, Republic of Korea
Institute of Basic Sciences, Korea University, Seoul, Republic of Korea
Meehye Lee
Department of Earth and Environmental Sciences, Korea University, Seoul, Republic of Korea
Sean C. Coburn
Precision Laser Diagnostics Laboratory, University of Colorado Boulder, Boulder, CO, USA
Ivan Ortega
NSF National Center for Atmospheric Research, ACOM, Boulder, CO, USA
Gao Chen
NASA Langley Research Center, Hampton, VA, USA
James Lee
Department of Chemistry, University of York, York, UK
National Centre for Atmospheric Science, University of York, York, UK
Kenneth C. Aikin
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
David D. Parrish
David D. Parrish, LLC, Boulder, CO, USA
John S. Holloway
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA
Thomas B. Ryerson
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Ilana B. Pollack
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Eric J. Williams
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Brian M. Lerner
Aerodyne Research, Inc., Billerica, MA, USA
Andrew J. Weinheimer
NSF National Center for Atmospheric Research, ACOM, Boulder, CO, USA
Teresa Campos
NSF National Center for Atmospheric Research, ACOM, Boulder, CO, USA
Frank M. Flocke
NSF National Center for Atmospheric Research, ACOM, Boulder, CO, USA
J. Ryan Spackman
NASA Ames Research Center, Moffett Field, CA, USA
Ilann Bourgeois
Université Savoie Mont Blanc, INRAE, CARRTEL, Thonon-les-Bains, France
Jeff Peischl
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Chelsea R. Thompson
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Ralf M. Staebler
Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, ON, Canada
Amir A. Aliabadi
Department of Mechanical Engineering, College of Engineering, University of Guelph, Guelph, ON, Canada
Wanmin Gong
Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, ON, Canada
Roeland Van Malderen
Royal Meteorological Institute of Belgium, Uccle (Brussels), Belgium
Anne M. Thompson
NASA Goddard Space Flight Center, Greenbelt, MD, USA
Ryan M. Stauffer
NASA Goddard Space Flight Center, Greenbelt, MD, USA
Debra E. Kollonige
NASA Goddard Space Flight Center, Greenbelt, MD, USA
Juan Carlos Gómez Martin
Instituto de Astrofísica de Andalucía, Consejo Superior de Investigaciones Científicas, Granada, Spain
Masatomo Fujiwara
Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan
Katie Read
National Centre for Atmospheric Science, University of York, York, UK
Matthew Rowlinson
National Centre for Atmospheric Science, University of York, York, UK
Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York, UK
Keiichi Sato
Asia Center for Air Pollution Research, Niigata, Niigata, Japan
Junichi Kurokawa
Asia Center for Air Pollution Research, Niigata, Niigata, Japan
Yoko Iwamoto
Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
Fumikazu Taketani
Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Kanagawa, Japan
Hisahiro Takashima
Faculty of Science, Fukuoka University, Fukuoka, Japan
Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Kanagawa, Japan
Mónica Navarro-Comas
Atmospheric Research and Instrumentation Branch, National Institute for Aerospace Technology (INTA), Madrid, Spain
Marios Panagi
Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia, Cyprus
Martin G. Schultz
Jülich Supercomputing Center, Forschungszentrum Jülich GmbH, Jülich, Germany
Department of Mathematics and Computer Science, University of Cologne, Cologne, Germany
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Short summary
The first comprehensive dataset of tropospheric ozone over oceans/polar regions is presented, including 77 ship/buoy and 48 aircraft campaign observations (1977–2022, 0–5000 m altitude), supplemented by ozonesonde and surface data. Air masses isolated from land for 72+ hours are systematically selected as essentially oceanic. Among the 11 global regions, they show daytime decreases of 11–16 % in the tropics, while near-zero depletions are rare, unlike in the Arctic, implying different mechanisms.
The first comprehensive dataset of tropospheric ozone over oceans/polar regions is presented,...
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