Analyzing Local Carbon Dioxide and Nitrogen Oxide Emissions From Space Using the Divergence Method: An Application to the Synthetic SMARTCARB Dataset

Since the Paris Agreement was adopted in 2015, role of space-based observations for monitoring anthropogenic greenhouse gas (GHG) emissions has increased. To meet requirements carbon dioxide (CO 2 ) emissions, European Copernicus programme is preparing a dedicated CO Monitoring (CO2M) satellite constellation that will provide and nitrogen (NO at 4 km resolution along 250 wide swath. In this paper, we adapt recently developed divergence method to derive both oxide x cities power plants from CO2M by using synthetic COSMO-GHG model. Due its long lifetime, large atmospheric background needs be removed highlight enhancements before calculating divergence. noise levels are compared enhancements, apply different denoising methods compare effect on emission estimates. The annual NO estimated maps peak fitting approach agreement with expected values, although larger uncertainties . We also consider possibility use co-emitted estimates quantifying source-specific -to-CO ratios derived directly observations. general, find provides promising tool estimating alternative typical based inverse modeling or analysis individual plumes.