Citation:
Zhen Qu, Daniel J. Jacob, Rachel F. Silvern, Viral Shah, Patrick C. Campbell, Lukas C. Valin, and Lee T. Murray. 5/2021. “US COVID-19 shutdown shows the importance of background NO2 in inferring nitrogen oxide (NOx) emissions from satellite NO2 observations.” Geophys. Res. Lett., 48, Pp. e2021GL092783. Publisher's Version