# cf.Field.source

`Field.``source`

  The source CF property.

  The method of production of the original data. If it was model-generated, `source` should name the model and its version, as specifically as could be useful. If it is observational, `source` should characterize it (for example, `'surface observation'` or `'radiosonde'`). See http://cfconventions.org/latest.html for details.

  Examples: |

      >>> f.source = 'radiosonde'
      >>> f.source
      'radiosonde'
      >>> del f.source

      >>> f.setprop('source', 'surface observation')
      >>> f.getprop('source')
      'surface observation'
      >>> f.delprop('source')