def METHOD_NAME(Obs_xml):
    output_file = Obs_xml.getObservationFilename()
    Obs_data = ObsDATA("amanzi-output/" + output_file)
    Obs_data.getObservationData()
    coords = Obs_xml.getAllCoordinates()
    for obs in Obs_data.observations.values():
        region = obs.region
        obs.coordinate = coords[region]
    return Obs_data