# Local definition 2: Cluster means and standard deviations

## Local definitions

- Local definition 1
- Local definition 2
- Local definition 3
- Local definition 4
- Local definition 5
- Local definition 6
- Local definition 7
- Local definition 8
- Local definition 9
- Local definition 10
- Local definition 11
- Local definition 12
- Local definition 13
- Local definition 14
- Local definition 15
- Local definition 16
- Local definition 17
- Local definition 18
- Local definition 19
- Local definition 20
- Local definition 21
- Local definition 22
- Local definition 23
- Local definition 24
- Local definition 25
- Local definition 26
- Local definition 27
- Local definition 28
- Local definition 29
- Local definition 30
- Local definition 31
- Local definition 32
- Local definition 36
- Local definition 37
- Local definition 38
- Local definition 39
- Local definition 49
- Local definition 50
- Local definition 190
- Local definition 191
- Local definition 192

Octets | Key | Type | Contents |

41 | localDefinitionNumber | unsigned | ECMWF local GRIB use definition identifier 2 = Cluster means and standard deviations. |

42 | class | codetable | Class |

43 | type | codetable | Type |

44-45 | stream | codetable | Stream |

46-49 | experimentVersionNumber | ksec1expver | Version number or experiment identifier. (4 ASCII characters, right justified) |

50 | clusterNumber | unsigned | Cluster number. |

51 | totalNumberOfClusters | unsigned | Total number of clusters. |

52 | Spare (set to zero) | ||

53 | clusteringMethod | unsigned | Clustering method: 1 = Maximum linkage method 2 = Mixed method 3 = Small linkage method |

54-55 | startTimeStep | unsigned | Start time step considered when clustering. (Same units of time as forecast timesteps.) |

56-57 | endTimeStep | unsigned | End time step considered when clustering. (Same units of time as forecast timesteps.) |

58-60 | northernLatitudeOfDomain | signed | Northern latitude of the domain of clustering. |

61-63 | westernLongitudeOfDomain | signed | Western longitude of the domain of clustering. |

64-66 | southernLatitudeOfDomain | signed | Southern latitude of the domain of clustering. |

67-69 | easternLongitudeOfDomain | signed | Eastern longitude of the domain of clustering. |

70 | operationalForecastCluster | unsigned | Number of cluster to which the operational forecast belongs. |

71 | controlForecastCluster | unsigned | Number of cluster to which the control forecast belongs. |

72 | numberOfForecastsInCluster | unsigned | Number of forecasts belonging to the cluster, including the control forecast (N). |

73 -72+N | ensembleForecastNumbers | unsigned | List of N ensemble forecast numbers. |

73+N-328 | Spare to ensure fixed length for section. |