Emissions, Topography, and Variation in XCO2 above the Southern California megacity

Jacob Hedelius1, Sha Feng2, Debra Wunch3, Camille Viatte1, Coleen Marie Roehl1, Thomas Lauvaux4, Paul O Wennberg5, Kevin R Gurney6, Risa Patarasuk7, Preeti Rao8, Darragh O'Keeffe7, James Robert Podolske9, Patrick W Hillyard10 and Laura T Iraci11, (1)California Institute of Technology, Pasadena, CA, United States, (2)Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, PA, United States, (3)California Institute of Technology, Pasadena, United States, (4)Pennsylvania State University Main Campus, Department of Meteorology and Atmospheric Science, University Park, United States, (5)California Institute of Technology, Division of Engineering and Applied Science, Pasadena, United States, (6)Northern Arizona University, School of Informatics, Computing and Cyber Systems, Flagstaff, AZ, United States, (7)Arizona State University, Tempe, AZ, United States, (8)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (9)NASA Ames Research Center, Moffett Field, CA, United States, (10)Bay Area Environmental Research Institute Moffett Field, Moffett Field, CA, United States, (11)NASA Ames Research Center, Atmospheric Science Branch, Moffett Field, United States