A top-down assessment using OMI NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; suggests an underestimate in the NO&amp;lt;sub&amp;gt;&amp;lt;i&amp;gt;x&amp;lt;/i&amp;gt;&amp;lt;/sub&amp;gt; emissions inventory in Seoul, South Korea, during KORUS-AQ
Atmospheric chemistry and physics