Groupings of Lamb weather types ( LWTs ) are used to assess the influence of synoptic meteorology on UK tropospheric column NO 2 . Composite satellite maps using daily 2005–2011 data show significant NO 2 anomalies for each group. Hence, despite large day‐to‐day variability and significant uncertainty in individual retrievals, the satellite data can be used to determine national‐scale column NO 2 variations under different meteorological conditions. Under cyclonic conditions, NO 2 is reduced, while anticyclonic conditions aid its accumulation, especially during winter, consistent with trapping of surface emissions and slower photochemical processing. This composite dataset can be used to test seasonal simulations of air quality models.
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Pope et al. (2014) studied this question.
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