Column NO2 from ground, aircraft and satellite
Vertical and slant column densities over Seoul and Los Angeles. 

This dataset is associated with the following publication:
Judd, L., J.A. Al-Saadi, L. Valin, R.B. Pierce, K. Yang, S.J. Janz, M.G. Kowalewski, J. Szykman, M. Tiefengraber, and M. Mueller. The Dawn of Geostationary Air Quality Monitoring: Case Studies …