{"ob_id":12281,"names":[{"ob_id":8523,"name":"column-averaged dry air mole fraction of atmospheric methane"}],"terms":[{"ob_id":2916,"label":"units","value":"1e-9","vocabulary":""},{"ob_id":12328,"label":"var_id","value":"xch4","vocabulary":""},{"ob_id":13054,"label":"long_name","value":"column-averaged dry air mole fraction of atmospheric methane","vocabulary":""}]}