# Synop Analyzer Binding
This binding integrates the possibility to download and interpret Synop messages.
# Binding Configuration
The binding has no configuration options itself, all configuration is done at 'Things' level.
# Supported Things
There is exactly one supported thing, which represents a Synop message. It has the id synopanalyzer.
# Discovery
If a system location is set, the nearest available Synop station be automatically discovered for this location. The search radius will expand at each successive scan.
# Thing Configuration
Besides the Synop Station Number (as synopID as a StationID (opens new window) string), the second configuration parameter is refreshInterval which defines the refresh interval in minutes.
Synop message are typically updated every hour.
# Channels
The weather information that is retrieved is available as these channels:
| Channel Type ID | Item Type | Description |
|---|---|---|
| temperature | Number:Temperature | Current outdoor temperature |
| pressure | Number:Pressure | Current pressure |
| wind-speed | Number:Speed | Current wind speed |
| wind-speed-beaufort | Number | Wind speed according to Beaufort scale |
| wind-angle | Number:Angle | Current wind direction |
| wind-direction | String | Wind direction |
| overcast | String | Appreciation of the cloud cover |
| octa | Number | Part of the sky covered by clouds (in 8th) |
| attenuation-factor* | Number | Cloud layer attenuation factor |
| time-utc | DateTime | Observation time of the Synop message |
| horizontal-visibility | String | Horizontal visibility range |
- ”cloud attenuation factor” (Kc) as defined by Kasten and Czeplak (1980)
# Example
# Things
Here is an example of thing definition:
synopanalyzer:synopanalyzer:orly [ stationId=7149 ]
# Items
Number Synop_Temperature "Temperature [%.1f °C]" <temperature> { channel = "synopanalyzer:synopanalyzer:trappes:temperature" }
Number Synop_Pressure "Pressure [%.1f mb]" <pressure> { channel = "synopanalyzer:synopanalyzer:trappes:pressure" }
Number Synop_Wind_Angle "Wind Angle [%d°]" <wind> { channel = "synopanalyzer:synopanalyzer:trappes:wind-angle"}
String Synop_Wind_Direction "Direction [%s]" { channel = "synopanalyzer:synopanalyzer:trappes:wind-direction"}
Number Synop_Wind_Speed "Wind Speed [%.2f m/s]" <wind> { channel = "synopanalyzer:synopanalyzer:trappes:wind-speed-ms"}
Number Synop_Octa "Octa [%d]/8" { channel = "synopanalyzer:synopanalyzer:trappes:octa"}
DateTime Synop_time "Observation Time [%1$ta %1$tR]" <clock> { channel = "synopanalyzer:synopanalyzer:trappes:time-utc"}