# Synop Analyzer Binding
This binding downloads and interprets SYNOP weather observation messages.
# Binding Configuration
The binding itself has no configuration options; all configuration is done at the Thing level.
# Supported Things
There is exactly one supported Thing type, which represents a SYNOP message: synopanalyzer.
# Discovery
If a system location is set, the nearest available SYNOP station will be automatically discovered for this location. The search radius expands with each successive scan.
# Thing Configuration
stationId— The WMO station number (see the station list (opens new window)).refreshInterval— The refresh interval in minutes.
SYNOP messages 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
Example Thing definition:
synopanalyzer:synopanalyzer:trappes [ stationId=7149 ]
# Items
Number:Temperature Synop_Temperature "Temperature [%.1f %unit%]" <temperature> { channel = "synopanalyzer:synopanalyzer:trappes:temperature" }
Number:Pressure Synop_Pressure "Pressure [%.1f %unit%]" <pressure> { channel = "synopanalyzer:synopanalyzer:trappes:pressure" }
Number:Angle 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:Speed Synop_Wind_Speed "Wind Speed [%.2f %unit%]" <wind> { channel = "synopanalyzer:synopanalyzer:trappes:wind-speed" }
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" }
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