14CO2 Observation-based U.S. Fossil Fuel CO2 (FFCO2) Emissions Estimation for the Period of 2010 to 2015

S M Nazrul Islam1,2, Scott Lehman3, John B Miller2, Sourish Basu4,5, Arlyn Andrews2, Kathryn McKain1,2 and Colm Sweeney2, (1)Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, United States, (2)NOAA, Global Monitoring Laboratory, Boulder, United States, (3)Institute for Arctic and Alpine Research, University of Colorado, Boulder, CO, United States, (4)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, United States, (5)University of Maryland, Earth System Science Interdisciplinary Center, College Park, United States