Effects of daily meteorology on the interpretation of space-based remote sensing of NO 2

摘要: Abstract. Retrievals of tropospheric NO2 columns from UV–visible observations reflected sunlight require a priori vertical profiles to account for the variation in sensitivity at different altitudes. These vary space and time but are usually approximated using models that do not resolve full details this variation. Currently, no operational retrieval simulates these both high spatial temporal resolution. Here we examine additional benefits daily variations retrievals already simulating sufficiently resolution identify within urban plumes. We show effects introducing into can be as large 40 % 3 × 1015 molec. cm−2 an individual day lead corrections −13 % monthly average case study Atlanta, GA, USA. Additionally, NOx emissions estimated space-based remote sensing daily, high-spatial-resolution  ∼ 100 % greater than those spatially coarse profiles, 26–40 % less averaged profiles.