Yi Yin¹, Frédéric Chevallier², Christian Frankenberg³, Philippe Ciais², Philippe Bousquet², Marielle Saunois², Bo Zheng², John R Worden⁴, A. Anthony Bloom⁵, Robert Parker⁶, Daniel Jacob⁷ and Edward J Dlugokencky⁸, (1)Caltech, Pasadena, United States, (2)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (4)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (5)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (6)University of Leicester, Leicester, United Kingdom, (7)Harvard University, Cambridge, MA, United States, (8)NOAA/ESRL Global Monitoring Division, Boulder, CO, United States