Articles | Volume 12, issue 11
Research article
22 Nov 2019
Research article |  | 22 Nov 2019

Evaluating the impact of spatial resolution on tropospheric NO2 column comparisons within urban areas using high-resolution airborne data

Laura M. Judd, Jassim A. Al-Saadi, Scott J. Janz, Matthew G. Kowalewski, R. Bradley Pierce, James J. Szykman, Lukas C. Valin, Robert Swap, Alexander Cede, Moritz Mueller, Martin Tiefengraber, Nader Abuhassan, and David Williams

Data sets

Lake Michigan Ozone Study GeoTASO NO2 Vertical Columns S. Janz, L. Judd, and M. Kowalewski

Berkeley High Resolution (BEHR) OMI NO2 – Native pixels, monthly profiles J. Laughner, Q. Zhu, and R. Cohen

NO2 Vertical Columns LuftBlick

Short summary
In 2017, an airborne mapping spectrometer (GeoTASO) was used to observe high-resolution column densities of nitrogen dioxide (NO2) over the western shore of Lake Michigan and the Los Angeles Basin. These data were used to simulate the spatial resolution of current and future satellite NO2 retrievals to evaluate the impact of pixel size on comparisons to ground-based observations in urban areas. As spatial resolution improves, the sensitivity to more heterogeneously polluted scenes increases.