{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$schemaVersion": "0.3.4",
  "modelTags": "IUDX",
  "$id": "https://smart-data-models.github.io/dataModel.Weather/WeatherObserved/schema.json",
  "title": "Weather Observed schema - Smart Data Models",
  "description": "An observation of weather conditions at a certain place and time. This data model has been developed in cooperation with mobile operators and the GSMA.",
  "type": "object",
  "allOf": [
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
    },
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
    },
    {
      "$ref": "https://smart-data-models.github.io/dataModel.Weather/weather-schema.json#/definitions/Weather-Commons"
    },
    {
      "properties": {
        "type": {
          "type": "string",
          "enum": [
            "WeatherObserved"
          ],
          "description": "Property. NGSI Entity type. It has to be WeatherObserved"
        },
        "dateObserved": {
          "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/dateObserved"
        },
        "precipitation": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. Amount of water rain registered. Units:'Liters per square meter'. "
        },
        "solarRadiation": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. The solar radiation observed measured in Watts per square. Units:'w/m2'"
        },
        "directIrradiation": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. Direct irradiance is the part of the solar irradiance that directly reaches a surface. Units:'w/m2'"
        },
        "diffuseIrradiation": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. Diffuse irradiance is the part of the solar irradiance that is scattered by the atmosphere. Units:'w/m2'"
        },
        "pressureTendency": {
          "oneOf": [
            {
              "type": "string",
              "enum": [
                "falling",
                "raising",
                "steady"
              ]
            },
            {
              "type": "number"
            }
          ],
          "description": "Property. Enum:'falling, raising, steady'. Is the pressure rising or falling? It can be expressed in quantitative terms or qualitative terms"
        },
        "dewPoint": {
          "type": "number",
          "description": "Property. Model:'https://schema.org/Number'. Units:'Celsius degrees'. The dew point encoded as a number. Observed temperature to which air must be cooled to become saturated with water vapor"
        },
        "refDevice": {
          "anyOf": [
            {
              "type": "string",
              "minLength": 1,
              "maxLength": 256,
              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
              "description": "Property. Identifier format of any NGSI entity"
            },
            {
              "type": "string",
              "format": "uri",
              "description": "Property. Identifier format of any NGSI entity"
            }
          ],
          "description": "Relationship. Model:'https://schema.org/URL'. A reference to the device(s) which captured this observation"
        },
        "streamGauge": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. The water level surface elevation observed by Hydrometric measurement sensors, namely a [Stream Gauge](https://en.wikipedia.org/wiki/Stream_gauge) expressed in centimeters. Units:'centimeters'"
        },
        "snowHeight": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. The snow height observed by generic snow depth measurement sensors, expressed in centimeters. Units:'centimeters'"
        },
        "uVIndexMax": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. The maximum UV index for the period, based on the World Health Organization's UV Index measure. [http://www.who.int/uv/intersunprogramme/activities/uv_index/en/](http://www.who.int/uv/intersunprogramme/activities/uv_index/en/) the values between 1 and 11 are the valid range for the index. The value 0 is for describing that no signal is detected so no value is stored"
        },
        "aqiMajorPollutant": {
          "type": "string",
          "description": "Property. Model:'https://schema.org/Text'. Major pollutant in the Air Quality Index (AQI)"
        },
        "aqiMajorPollutantForecast": {
          "type": "string",
          "description": "Property. Model:'https://schema.org/Text'. Forecasted major air pollutant in the Air Quality Index (AQI) over a certain duration in future"
        },
        "airTemperatureForecast": {
          "type": "number",
          "description": "Property. Model:'https://schema.org/Number'. Forecasted value of air temperature over a certain duration in future"
        },
        "precipitationForecast": {
          "type": "number",
          "description": "Property. Model:'https://schema.org/Number'. Forecasted rainfall over a certain duration in future"
        },
        "airQualityIndex": {
          "type": "number",
          "description": "Property. Model:'https://schema.org/Number'. Air quality index is a number used to report the quality of the air on any given day"
        },
        "relativeHumidityForecast": {
          "type": "number",
          "description": "Property. Model:'https://schema.org/Number'. Forecasted relative humidity (water vapour in air) over a certain duration in future"
        },
        "airQualityIndexForecast": {
          "type": "number",
          "description": "Property. Model:'https://schema.org/Number'. Forecasted overall Air Quality Index (AQI) over a certain duration in future"
        },
        "airTemperatureTSA": {
          "type": "object",
          "description": "Property. Air temperature time series aggregation",
          "$ref": "https://smart-data-models.github.io/dataModel.Environment/Environment-schema.json#/definitions/TimeSeriesAggregation"
        }
      }
    }
  ],
  "required": [
    "id",
    "type",
    "dateObserved",
    "location"
  ]
}