Ammonia is very difficult to measure because it is a very sticky gas. BRI has a mobile atmospheric lab built into a Nissan Versa that was used in this study, AMOG Surveyor. The AMOG Surveyor was developed to validate of airborne and satellite remote sensing for NASA. AMOG analyzers measure 13 trace gases and meteorology at up to highway speed. Analyzers include a high flow, ultra-precise ammonia analyzer from Los Gatos Research. It is the only analyzer that is high flow, which counters the stickiness of ammonia.