1   Definition

Weather Data is a set of data that includes measures of:

  1. Temperature
  2. Humidity
  3. Air Pressure
  4. Ice
  5. Wind
  6. Condensed water in various states:
    1. gaseous: fog
    2. liquid: rain
    3. frozen: snow, sleet, hail

2   Functional Requirements

  1. Temperature measured in degrees °C.
  2. Ice measured as Ice Conditions expressed as yes/no.
  3. Wind measured as Wind Conditions expressed by Orientation and velocity measured in m/s.
  4. Density of fog measured in meters of clear visibility.
  5. Amount of rain measured in mm/h.
  6. Hail measured in mm of hailstone size.
  7. Snow measured mm/h.
  8. Sleet measured in meters of clear visibility.

3   Syntax

https://schemas.mpai.community/CAV2/V1.0/data/WeatherData.json

4   Semantics

Label Description
Header Weather Data Header
– Standard-WeatherData The characters “CAV-WDT-V”
– Version Major version – 1 or 2 Bytes
– Dot-separator The character “.”
– Subversion Minor version – 1 or 2 Bytes
WeatherDataID
  Identifier of this instance of Weather Data
WeatherData  Weather Data Types that can be included in Weather Data.
– Temperature Measured in °C with Accuracy in °C
– RelativeHumidity Measured in % with Accuracy in integer.
– Air pressure Measured in millibars with Accuracy in millibar
– Ice yes/no with Confidence as real between 0 and 1.
– WindConditions Azimuth and Elevation in degrees and velocity in m/s. Accuracies in degrees and velocity in m/s.
– Fog Measured in meters of clear visibility. Accuracy in m/s.
– Rain Measured in mm/h. Accuracy in mm/h.
– Hail Measured in mm size of hail. Accuracy in mm.
– Snow Measured in mm/hour. Accuracy in mm/hour.
– Sleet Measured in metres of clear visibility. Accuracy in metres.
DescrMetadata Descriptive Metadata