Decreasing Lower Tropospheric Ozone over the North China Plain Observed by IASI: Looking for Explanations

Gaëlle Dufour1, Maxim Eremenko1, Mathieu Lachâtre1, Didier Hauglustaine2, Audrey Fortems-Cheiney3, Juan Cuesta1, Yuli Zhang4, Zhaonan Cai4, Yi Liu5, Xiaobin Xu6, Weili Lin7 and Owen Roger Cooper8, (1)Laboratoire Inter-universitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583, Université Paris-Est Créteil, Université de Paris, Institut Pierre Simon Laplace (IPSL), Créteil, France, (2)Laboratoire des Sciences du Climat et de l’Environnement, CEA-CNRS-UVSQ, UMR8212, Gif-Sur-Yvette, France, (3)Laboratoire Inter-universitaire des Systèmes Atmosphériques (LISA), UMR7583, Universités Paris-Est Créteil et Paris Diderot, CNRS, Créteil, France, (4)IAP Insititute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (5)Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (6)CAMS Chinese Academy of Meteorological Sciences, Beijing, China, (7)Meteorological Observation Center, China Meteorological Administration, Beijing, China, (8)CIRES, U. of Colorado/NOAA Chemical Sciences Laboratory, Boulder, United States