Effect of volcanic aerosol on stratospheric NO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; and N&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;5&amp;lt;/sub&amp;gt; from 2002–2014 as measured by Odin-OSIRIS and Envisat-MIPAS
Atmospheric chemistry and physics