Tropospheric Ozone Assessment Report (TOAR):

Global metrics for climate change, human health and crop/ecosystem research

Collection launched: August 1, 2017

Guest Editor

Alastair Lewis, University of York, UK

A community-wide effort to quantify tropospheric ozone in a rapidly changing world.  Tropospheric ozone is a greenhouse gas and pollutant detrimental to human health and crop and ecosystem productivity. Since 1990 a large portion of the anthropogenic emissions that react in the atmosphere to produce ozone have shifted from North America and Europe to Asia.  This rapid shift, coupled with limited ozone monitoring in developing nations and remote regions of the world, left the research community struggling to maintain an up-to-date assessment ofozone in the troposphere.  In response, the International Global Atmospheric Chemistry Project (IGAC) initiated TOAR in 2014 with a mission to provide the research community with an up-to-date scientific assessment of tropospheric ozone’s global distribution and trends from the surface to the tropopause.  The assessment report is published here as a series of research papers.  The findings are based on the most comprehensive collection of surface and free tropospheric ozone observations ever assembled.  In a major advancement, TOAR has created a database containing a wide range of ozone exposure and dose metrics, calculated consistently for all available surface ozone monitoring sites around the world, and freely accessible for research on the global-scale impact of ozone on climate, human health and crop/ecosystem productivity.

Additional articles under review

Collection Articles

Research Article
Tropospheric Ozone Assessment Report: Database and Metrics Data of Global Surface Ozone Observations
Martin G. Schultz, Sabine Schröder, Olga Lyapina, Owen Cooper, Ian Galbally, Irina Petropavlovskikh, Erika von Schneidemesser, Hiroshi Tanimoto, Yasin Elshorbany, Manish Naja, Rodrigo Seguel, Ute Dauert, Paul Eckhardt, Stefan Feigenspahn, Markus Fiebig, Anne-Gunn Hjellbrekke, You-Deog Hong, Peter Christian Kjeld, Hiroshi Koide, Gary Lear, David Tarasick, Mikio Ueno, Markus Wallasch, Darrel Baumgardner, Ming-Tung Chuang, Robert Gillett, Meehye Lee, Suzie Molloy, Raeesa Moolla, Tao Wang, Katrina Sharps, Jose A. Adame, Gerard Ancellet, Francesco Apadula, Paulo Artaxo, Maria Barlasina, Magdalena Bogucka, Paolo Bonasoni, Limseok Chang, Aurelie Colomb, Emilio Cuevas, Manuel Cupeiro, Anna Degorska, Aijun Ding, Marina Fröhlich, Marina Frolova, Harish Gadhavi, Francois Gheusi, Stefan Gilge, Margarita Y. Gonzalez, Valerie Gros, Samera H. Hamad, Detlev Helmig, Diamantino Henriques, Ove Hermansen, Robert Holla, Jacques Huber, Ulas Im, Daniel A. Jaffe, Ninong Komala, Dagmar Kubistin, Ka-Se Lam, Tuomas Laurila, Haeyoung Lee, Ilan Levy, Claudio Mazzoleni, Lynn Mazzoleni, Audra McClure-Begley, Maznorizan Mohamad, Marijana Murovic, M. Navarro-Comas, Florin Nicodim, David Parrish, Katie A. Read, Nick Reid, Ludwig Ries, Pallavi Saxena, James J. Schwab, Yvonne Scorgie, Irina Senik, Peter Simmonds, Vinayak Sinha, Andrey Skorokhod, Gerard Spain, Wolfgang Spangl, Ronald Spoor, Stephen R. Springston, Kelvyn Steer, Martin Steinbacher, Eka Suharguniyawan, Paul Torre, Thomas Trickl, Lin Weili, Rolf Weller, Xiaobin Xu, Likun Xue, Ma Zhiqiang

Research Article
Regional trend analysis of surface ozone observations from monitoring networks in eastern North America, Europe and East Asia
Kai-Lan Chang, Irina Petropavlovskikh, Owen R. Cooper, Martin G. Schultz, Tao Wang

Tropospheric Ozone Assessment Report: Assessment of global-scale model performance for global and regional ozone distributions, variability, and trends
P. J. Young, V. Naik, A. M. Fiore, A. Gaudel, J. Guo, M. Y. Lin, J. L. Neu, D. D. Parrish, H. E. Rieder, J. L. Schnell, S. Tilmes, O. Wild, L. Zhang, J. R. Ziemke, J. Brandt, A. Delcloo, R. M. Doherty, C. Geels, M. I. Hegglin, L. Hu, U. Im, R. Kumar, A. Luhar, L. Murray, D. Plummer, J. Rodriguez, A. Saiz-Lopez, M. G. Schultz, M. T. Woodhouse, G. Zeng

Research Article
Tropospheric Ozone Assessment Report: Present-day ozone distribution and trends relevant to human health
Zoë L. Fleming, Ruth M. Doherty, Erika von Schneidemesser, Christopher S. Malley, Owen R. Cooper, Joseph P. Pinto, Augustin Colette, Xiaobin Xu, David Simpson, Martin G. Schultz, Allen S. Lefohn, Samera Hamad, Raeesa Moolla, Sverre Solberg, Zhaozhong Feng

Research Article
Tropospheric ozone assessment report: Global ozone metrics for climate change, human health, and crop/ecosystem research
Allen S. Lefohn, Christopher S. Malley, Luther Smith, Benjamin Wells, Milan Hazucha, Heather Simon, Vaishali Naik, Gina Mills, Martin G. Schultz, Elena Paoletti, Alessandra De Marco, Xiaobin Xu, Li Zhang, Tao Wang, Howard S. Neufeld, Robert C. Musselman, David Tarasick, Michael Brauer, Zhaozhong Feng, Haoye Tang, Kazuhiko Kobayashi, Pierre Sicard, Sverre Solberg, Giacomo Gerosa