A Road Weather Information System (RWIS) comprises automatic weather stations (AWS) (often technically referred to as Environmental Sensor Stations (ESS) as they also cover non-meteorological variables) in the field, a communication system for data transfer, and central systems to collect field data from numerous ESS. These stations measure real-time atmospheric parameters, pavement conditions, water level conditions, visibility, and sometimes other variables. Central RWIS hardware and software are used to process observations from ESS to develop nowcasts or forecasts, and to display or disseminate road weather information in a format that can be easily interpreted by a manager. RWIS data are used by road operators and maintainers to support decision making.[1] Real-time RWIS data is also used by Automated Warning Systems (AWS). The spatial and temporal resolution of a station network can be that of a mesonet or sometimes a constituent network in a network of station networks comprising a mesonet. The data is often considered proprietary although it is typically ingested into the major numerical weather prediction models.
^US FHWA Road Weather Management FAQ
and 26 Related for: Road Weather Information System information
A RoadWeatherInformationSystem (RWIS) comprises automatic weather stations (AWS) (often technically referred to as Environmental Sensor Stations (ESS)...
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interfaces with flight management systems (FMS), acting as the communication system for flight plans and weatherinformation to be sent from the ground to...
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particular users, such as soil temperature or road conditions (the latter notable in RoadWeatherInformationSystem (RWIS) networks). The distinguishing features...
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reporting weatherinformation. A METAR weather report is predominantly used by aircraft pilots, and by meteorologists, who use aggregated METAR information to...
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accurate wind speed data, information needed to accurately predict hurricane development and movement. The Air Force Reserve 53rd Weather Reconnaissance Squadron...
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by the traffic management centres. Relevant information may include locations of incidents, weather and road conditions, optimal routes, recommended speeds...
predict the El Niño phenomenon. Weather satellites have been available to determine sea surface temperature information since 1967, with the first global...
World Meteorological Organization. 2003. WMO-No. 958. (Information no longer available) WMO AMDAR Observing System site (Dead link) NOAA AMDAR site v t e...
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