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Reader - CopernicusGlobalAnalysisForecast

ReaderName: CopernicusGlobalAnalysisForecast

This reader is used to import data from Copernicus (CMEMS) product GLOBAL_ANALYSIS_FORECAST_PHY_001_024.

The imported dataset will have the following properties: - The spatial domain is an equidistant grid. - The input is a file with one item and one time step.

Files can be converted one at a time or combined into a zip file which can then be used as an input for the reader. The files inside the zip files must have a matching spatial and temporal domain.

  • The reader loads all items in provided input file(s). An example request might look like this: 
        {
      projectId: <projectId>,
      uploadUrl: <fileUrl>,
      outputDatasetData: {
        name: <dataset-name>
      },
      readerName: 'CopernicusGlobalAnalysisForecast',
      writerName: 'MDWriter',
      readerParameters: []
    }

Optional reader parameters

  • "QuantityMap": specify EUM unit and EUM item of individual file variables.
  • "CoordinateInterpretationType": gives a hint to the reader as to what representation to assign to coordinates found in the file. Values are "CenterOfCell", which means the coordinates represent centers of cells, or "BottomLeftBorder" (default), which indicates that the coordinates are given with respect to the bottom left border of the cell.
  • "TemporalDimensionName" - name of the variable with temporal domain, e.g. 'date'. If not specified, 'time' or 'MT' will be used.
  • "EquidistantStepDiffTolerance": to import data as EqudistantGrid, the step difference must be inferred from array of lat/long positions. This paramater specifies max tolerance for difference variations between individual steps. Default value is 0.0005.