Comparing Mass Balance and Adjoint-Based 4D-VAR Methods for Inverse Modeling of Nitrogen Dioxide Columns for Nitrogen Oxide Emissions

Matthew Cooper, Dalhousie University, Department of Physics and Atmospheric Science, Halifax, NS, Canada, Randall Martin, Dalhousie University, Physics and Atmospheric Science, Halifax, Canada and Daven K Henze, University of Colorado Boulder, Boulder, United States