African biomass burning plumes over the Atlantic: aircraft based measurements and implications for H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;SO&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt; and HNO&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt; mediated smoke particle activation
Atmospheric chemistry and physics