The BEHR OMI NO₂ product reprocesses tropospheric NO₂ columns from the Ozone Monitoring Instrument (OMI) satellite using high resolution a priori NO₂ profiles, surface reflectivity, and surface elevation data. This product uses NO₂ profiles for the day retrieved, simulated by the WRF-Chem model at 12 km spatial resolution. The use of high spatial resolution NO₂ profiles has been shown to better resolve urban/rural differences in NO₂ column densities, and the use of day-to-day (rather than monthly average) profiles is especially important in applications that preferentially select observations upwind or downwind of a NO_x source. However, given the computation cost of simulating daily, 12 km NO₂ profiles over the continental US domain and accurately representing individual lightning events, we still provide a product using monthly average profiles.

The methods for the BEHR product are described in detail in Laughner et al. (in prep).