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First 1231 results for ”J.Q. Keijman”

1. Ground-based tropospheric ozone measurements: regional tropospheric ozone column trends from the TOAR-II/HEGIFTOM homogenized datasets

   Quantifying long-term free-tropospheric ozone trends is essential for understanding the impact of...

   Roeland Van Malderen, Zhou Zang, Kai-Lan Chang, Robin Björklund, Owen R. Cooper, Jane Liu, Eliane Maillard Barras, Corinne Vigouroux, Irina Petropavlovskikh, Thierry Leblanc, Valérie Thouret, Pawel Wolff, Peter Effertz, Audrey Gaudel, David W. Tarasick, Herman G. J. Smit, Anne M. Thompson, Ryan M. Stauffer, Debra E. Kollonige, Deniz Poyraz, Gérard Ancellet, Marie-Renée De Backer, Matthias M. Frey, James W. Hannigan, José L. Hernandez, Bryan J. Johnson, Nicholas Jones, Rigel Kivi, Emmanuel Mahieu, Isamu Morino, Glen McConville, Katrin Müller, Isao Murata, Justus Notholt, Ankie Piters, Maxime Prignon, Richard Querel, Vincenzo Rizi, Dan Smale, Wolfgang Steinbrecht, Kimberly Strong, and Ralf Sussmann | Journal: Atmospheric Chemistry and Physics | Volume: 25 | Year: 2025 | First page: 9905 | Last page: 9935 | doi: https://doi.org/10.5194/acp-25-9905-2025

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2. Global ground-based tropospheric ozone measurements: reference data and individual site trends (2000–2022) from the TOAR-II/HEGIFTOM project

   Tropospheric ozone trends from models and satellites are found to diverge. Ground-based (GB) obse...

   Roeland Van Malderen, Anne M. Thompson, Debra E. Kollonige, Ryan M. Stauffer, Herman G. J. Smit, Eliane Maillard Barras, Corinne Vigouroux, Irina Petropavlovskikh, Thierry Leblanc, Valérie Thouret, Pawel Wolff, Peter Effertz, David W. Tarasick, Deniz Poyraz, Gérard Ancellet, Marie-Renée De Backer, Stéphanie Evan, Victoria Flood, Matthias M. Frey, James W. Hannigan, José L. Hernandez, Marco Iarlori, Bryan J. Johnson, Nicholas Jones, Rigel Kivi, Emmanuel Mahieu, Glen McConville, Katrin Müller, Tomoo Nagahama, Justus Notholt, Ankie Piters, Natalia Prats, Richard Querel, Dan Smale, Wolfgang Steinbrecht, Kimberly Strong, and Ralf Sussmann | Journal: Atmospheric Chemistry and Physics | Volume: 25 | Year: 2025 | First page: 7187 | Last page: 7225 | doi: https://doi.org/10.5194/acp-25-7187-2025

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3. Intercomparison and evaluation of aerosol microphysical properties among AeroCom global models of a range of complexity

   Many of the next generation of global climate models will include aerosol schemes which explicitl...

   GW Mann, KS Carslaw, CL Reddington, KJ Pringle, M Schulz, A Asmi, DV Spracklen, DA Ridley, MT Woodhouse, LA Lee, K Zhang, SJ Ghan, RC Easter, X Liu, P Stier, YH Lee, PJ Adams, H Tost, J Lelieveld, SE Bauer, K Tsigaridis, TPC van Noije, A Strunk, E Vignati, N Bellouin, M Dalvi, CE Johnson, T Bergman, H Kokkola, K von Salzen, F Yu, G Luo, A Petzold, J Heintzenberg, A Clarke, JA Ogren, J Gras, U Baltensperger, U Kaminski, SG Jennings, CD O'Dowd, RM Harrison, DCS Beddows, M Kulmala, Y Viisanen, V Ulevicius, N Mihalopoulos, V Zdimal, M Fiebig, H-C Hansson, E Swietlicki, JS Henzing | Status: published | Journal: Atmos. Chem. Phys. | Volume: 14 | Year: 2014 | First page: 4679 | Last page: 4713 | doi: 10.5194/acp-14-4679-2014

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4. Photochemical sensitivity to emissions and local meteorology in Bogotá, Santiago, and São Paulo: An analysis of the initial COVID-19 lockdowns

   This study delves into the photochemical atmospheric changes reported globally during the pandemi...

   Rodrigo J. Seguel, Laura Gallardo, Mauricio Osses, Néstor Y. Rojas, Thiago Nogueira, Camilo Menares, Maria de Fatima Andrade, Luis C. Belalcázar, Paula Carrasco, Henk Eskes, Zoë L. Fleming, Nicolas Huneeus, Sergio Ibarra-Espinosa, Eduardo Landulfo, Manuel Leiva, Sonia C. Mangones, Fernando G. Morais, Gregori A. Moreira, Nicolás Pantoja, Santiago Parraguez, Jhojan P. Rojas, Roberto Rondanelli, Izabel da Silva Andrade, Richard Toro, Alexandre C. Yoshida | Journal: Science of the Anthropocene | Year: 2022 | doi: https://doi.org/10.1525/elementa.2021.00044

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5. The Ozone Monitoring Instrument: overview of 14 years in space

   This overview paper highlights the successes of the Ozone Monitoring Instrument (OMI) on board th...

   P.F. Levelt, J. Joiner, J. Tamminen, J.P. Veefkind, P.K. Bhartia, D.C. Stein Zweers, B.N. Duncan, D.G. Streets, H. Eskes, R. van der A, C. McLinden, V. Fioletov, S. Carn, J. de Laat, M. DeLand, S. Marchenko, R. McPeters, J. Ziemke, D. Fu, X. Liu, K. Pickering, A. Apituley, G. González Abad, A. Arola, F. Boersma, C. Chan Miller, K. Chance, M. de Graaf, J. Hakkarainen, S. Hassinen, I. Ialongo, Q. Kleipool, N. Krotkov, C. Li, L. Lamsal, P. Newman, C. Nowlan, R. Suleiman, L.G. Tilstra, O. Torres, H. Wang, and K. Wargan | Journal: Atmospheric Chemistry and Physics | Volume: 18 | Year: 2018 | doi: https://doi.org/10.5194/acp-18-5699-2018

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