Springtime transitions of NO over North America: Model evaluation and analysisDOI: info:10.1029/2007JD009632v. 11320311
Choi, Yunsoo, Wang, Yuhang, Zeng, Tao, Cunnold, Derek, Yang, Eun-Su, Martin, Randall, Chance, Kelly V., Thouret, Valerie, and Edgerton, Eric. 2008. "Springtime transitions of NO2, CO, and O3 over North America: Model evaluation and analysis." Journal of Geophysical Research. D. Atmospheres, 113 20311. https://doi.org/10.1029/2007JD009632.