Comparison of CMAM simulations of carbon monoxide (CO), nitrous oxide (N&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O), and methane (CH&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;) with observations from Odin/SMR, ACE-FTS, and Aura/MLS