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Quality flags describe the quality and origin of data.
The Flags available in Delft-FEWS are a based on a combination of two components: the origin and the quality of the data.

  • Origin of the data

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  • Original
    • The data value is the original value. It has not been changed.
  • Completed
    • The original value was missing and has been replaced by a non-missing value.
    • CorrectedThe original value has been replaced with another (non-missing) value.
  • : Original / Completed / Corrected
  • Quality of the data

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  • Data is reliable and valid

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  • Data validity is uncertain
  • : Reliable / Doubtful / Unreliable

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Note
  • Unreliable Data will not be
  • used for calculations like transformations or external models.

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  • It can still be viewed and will be exported with a regular exportModule, as long as the unreliable flag is shown with it.
Note
  • No difference is made between historic and forecast data when it comes to Quality Flags.
    In the data model of Delft-FEWS this difference is captured in the time series type definition.
  • External sources may either be an actual external source, a forecasting module or a transformation. 

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