{"ob_id":75150,"names":[],"terms":[{"ob_id":11210,"label":"standard_name","value":"ertel_potential_vorticity","vocabulary":"cf_standard_names"},{"ob_id":76493,"label":"var_id","value":"ertel_potential_vorticity","vocabulary":""},{"ob_id":76494,"label":"units","value":"K m^2 kg^-1 s^-1","vocabulary":""}]}