Articles | Volume 14, issue 2
Research article
05 Feb 2021
Research article |  | 05 Feb 2021

Multiscale observations of NH3 around Toronto, Canada

Shoma Yamanouchi, Camille Viatte, Kimberly Strong, Erik Lutsch, Dylan B. A. Jones, Cathy Clerbaux, Martin Van Damme, Lieven Clarisse, and Pierre-Francois Coheur

Data sets

NDACC Measurements at the Toronto, Canada Station Network for the Detection of Atmospheric Composition Change (NDACC)


Industrial and agricultural ammonia point sources exposed ( M. Van Damme, L. Clarisse, S. Whitburn, J. Hadji-Lazaro, D. Hurtmans, C. Clerbaux, and P.-F. Coheur

National Air Pollution Surveillance Program Environment and Climate Change Canada (ECCC)

Model code and software

Infrared Working Group 85 Retrieval Code J. Hannigan, M. Palm, and I. Ortega

geoschem/geos-chem: GEOS-Chem 12.9.2 The International GEOS-Chem User Commu- nity

Short summary
Ammonia (NH3) is a major source of pollution in the air. As such, there have been increasing efforts to measure the atmospheric abundance of NH3 and its spatial and temporal variability. In this study, long-term measurements of NH3 over Toronto, Canada, derived from multiscale datasets are examined. These NH3 datasets were compared to each other and to a model to better understand NH3 variability and to assess model performance.