样本天气数据集

sample_weatherdata 数据库包含来自不同位置的详细天气报告。每份报告都包含 airTemperature、wind 和 visibility 等读数。每份报告都包含一个以 GeoJSON 格式存储的位置。

To learn how to load the sample data provided by MongoDB Atlas into your cluster, see Import Sample Data Into Your Atlas Deployment.

集合

该数据库包含一个名为 data 的集合。

sample_weatherdata.data 集合包含数据集中的所有天气报告。集合中的每个文档都代表一个天气预报。文档中的各种天气观测通常存在于嵌入式对象中。

索引

sample_weatherdata.data 集合包含以下索引：

名称	Index	说明
`_id_`	`{ "_id": 1 }`	`_id` 字段的主键索引。

文档样本

{
  "_id": {
    "$oid": "5553a998e4b02cf7151190c9"
  },
  "st": "x+51900+003200",
  "ts": {
    "$date": {
      "$numberLong": "447354000000"
    }
  },
  "position": {
    "type": "Point",
    "coordinates": [
      {
        "$numberDouble": "3.2"
      },
      {
        "$numberDouble": "51.9"
      }
    ]
  },
  "elevation": {
    "$numberInt": "9999"
  },
  "callLetters": "PLAT",
  "qualityControlProcess": "V020",
  "dataSource": "4",
  "type": "FM-13",
  "airTemperature": {
    "value": {
      "$numberDouble": "4.8"
    },
    "quality": "1"
  },
  "dewPoint": {
    "value": {
      "$numberDouble": "4.6"
    },
    "quality": "1"
  },
  "pressure": {
    "value": {
      "$numberDouble": "1032.6"
    },
    "quality": "1"
  },
  "wind": {
    "direction": {
      "angle": {
        "$numberInt": "170"
      },
      "quality": "1"
    },
    "type": "N",
    "speed": {
      "rate": {
        "$numberDouble": "0.5"
      },
      "quality": "1"
    }
  },
  "visibility": {
    "distance": {
      "value": {
        "$numberInt": "999999"
      },
      "quality": "9"
    },
    "variability": {
      "value": "N",
      "quality": "9"
    }
  },
  "skyCondition": {
    "ceilingHeight": {
      "value": {
        "$numberInt": "99999"
      },
      "quality": "9",
      "determination": "9"
    },
    "cavok": "N"
  },
  "sections": [
    "AG1",
    "MD1",
    "OA1",
    "SA1"
  ],
  "precipitationEstimatedObservation": {
    "discrepancy": "2",
    "estimatedWaterDepth": {
      "$numberInt": "999"
    }
  },
  "atmosphericPressureChange": {
    "tendency": {
      "code": "2",
      "quality": "1"
    },
    "quantity3Hours": {
      "value": {
        "$numberDouble": "1.2"
      },
      "quality": "1"
    },
    "quantity24Hours": {
      "value": {
        "$numberDouble": "99.9"
      },
      "quality": "9"
    }
  },
  "seaSurfaceTemperature": {
    "value": {
      "$numberDouble": "5.5"
    },
    "quality": "9"
  }
}