ecmwf.yaml

# A user-defined schema. The minimum is name and version
schema-name: ECMWF attribute schema for Maestro
schema-version: 1

schema-namespace: ".maestro.ecmwf."

# attributes section is optional; if given it needs to have a sequence value
maestro-attributes:

# Top-level attributes

  - key: "class"
    type: str()
    required: True
    documentation: Basic classification for the run, such as operational, research, etc.

  - key: "expver"
    type: str()
    required: True
    documentation: Identifier for the experiment.

  - key: "stream"
    type: str()
    required: True
    documentation: Type of data stream.

  - key: "date"
    type: timestamp() # rfc3339 timestamp
    required: True
    documentation: Start date of the experiment.

  - key: "time"
    type: uint() # usually just hour of start, e.g., one of 0/6/12/18
    required: True
    documentation: Start time of the experiment

  - key: "domain"
    type: str()
    required: False
    default: "g"
    documentation: Domain the field has been computed for.

# Middle-level attributes

  - key: "type"
    type: str()
    required: True
    documentation: Type of run, such as analysis, forcast, ensemble, etc.

  - key: "levtype"
    type: str()
    required: True
    documentation: Type of vertical level.

# Low-level attributes

  - key: "step"
    type: int(min=0)
    required: True
    documentation: Step number since start of the experiment.

  - key: "number"
    type: int(min=1, max=50)
    required: False
    default: 0
    documentation: Number in the ensemble set.

  - key: "levelist"
    type: int(min=1, max=137)
    required: False