Top-down Estimate of Methane Emissions from Natural Gas Production in Northeastern Pennsylvania Using Aircraft and Tower Observations

Zachary Barkley1, Thomas Lauvaux2, Kenneth J Davis1, Aijun Deng3, Natasha L Miles4, Scott Richardson5, Douglas K Martins6, Yanni Cao5, Colm Sweeney7, Kathryn McKain8, Stefan Schwietzke9, Mackenzie Lynn Smith10 and Eric A Kort11, (1)The Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, United States, (2)Pennsylvania State University Main Campus, Department of Meteorology and Atmospheric Science, University Park, United States, (3)The Pennsylvania State Unviersity, Department of Meteorology, University Park, PA, United States, (4)Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, PA, United States, (5)Pennsylvania State University Main Campus, University Park, PA, United States, (6)Penn State University, University Park, PA, United States, (7)NOAA, Global Monitoring Laboratory, Boulder, United States, (8)NOAA Boulder, ESRL, Boulder, United States, (9)NOAA Boulder, Boulder, CO, United States, (10)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (11)University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, MI, United States