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Our fire weather stations are equipped with a suite of high quality meteorological sensors for monitoring wind speed, wind direction, precipitation, air temperature, and relative humidity. Sensors to measure fuel moisture, fuel temperature, soil water content, soil temperature, and solar radiation can also be added to a fire weather station.
Data can be transmitted over a variety of telecommunication options, including satellite, telephone, cell phone, and radio. In the United States, GOES1 satellite telemetered data can be collected via NIFC2 and stored to WIMS3 or collected directly from NESDIS4 using Remsoft's WeatherPro and NESDIS module. NFDRS5 indices are calculated using WIMS or WeatherPro. Our High Data Rate GOES transmitter, the TX312, features transmission rates of 1200, 300, and 100 bps.
Campbell Scientific equipment can interface to many sensors with different output types. Our dataloggers can also measure large numbers of sensors. The versatility of the dataloggers allow them to serve more than one purpose. Our equipment has been used for fire research during prescribed burns, and monitored conditions near fire lines. A suitably sited fire weather station could also be used for avalanche forecasting in the winter or serve as a year-round hydrological monitoring station with the addition of a water-depth sensor.
Our RAWS-F Fire Weather Quick Deployment Station is ideal for prescribed burns or other temporary installations. Customers can set up the station in as little as 10 minutes—without tools. Each RAWS-F station is preprogrammed to monitor wind speed and direction, air temperature and relative humidity, precipitation, barometric pressure, and solar radiation sensors. This program complies with the National Fire Danger Rating System (NFDRS) weather station standards.
A RAWS-F station consists of an aluminum environmental enclosure mounted to a 6-ft tripod. The enclosure houses and protects a CR1000 datalogger and a 12-V battery that is recharged via a solar panel or an AC transformer. To facilitate sensor connection, the outside of the enclosure has color-coded, keyed connectors. A wiring panel is also provided allowing the RAWS-F to measure additional sensors.
Communication options include our GOES satellite transmitter and the VSP3 Vosponder Voice Radio Interface. The Vosponder allows customers to call a RAWS-F station via a hand-held radio and receive verbal reports of real-time conditions. Our RAWS-F station is compatible with other communication equipment such as telephones, digital cellular transceivers, and RF.
Campbell Scientific provides a wide selection of sensors and data transfer peripherals for configuring a custom station that matches the exact requirements of your application. Our fire weather stations feature simplified installation and operation with a standard suite of sensors, a prewired datalogger enclosure, color-coded sensor connectors, and a fixed program in the datalogger. Custom weather stations are configured from a wider selection of sensors and data transfer peripherals, allowing for greater flexibility in matching an application's exact requirements. Permanent fire weather stations typically use 20-foot instrumentation towers. 10- and 30-foot instrumentation towers and 6-, 10-, 15-, and 20-foot tripods are also available.
Our measurement systems are based around programmable dataloggers that measure the sensors, then process, store, and transmit the data. We offer a family of rugged, reliable dataloggers, but the CR1000 is usually suitable for fire weather applications. Our dataloggers have programmable execution intervals, wide operating temperature ranges, on-board instructions, and ample input channels for commonly used sensors. Our dataloggers interface directly to most sensors, eliminating external signal conditioning.
Data are typically viewed and stored in the units of your choice (e.g., wind speed in mph, m/s, knots). Measurement rates and data recording intervals are independently programmable, allowing calculation of 15-minute, hourly, and daily data values from 1-minute or 1-second measurements, for example. Conditional outputs, such as rainfall intensity and wind gusts, can also be recorded. The program can be modified at any time to accommodate different sensor configurations or new data processing requirements. If needed, channel capacity can be expanded using multiplexers, including a model designed specifically for thermocouples.
1Geostationary Operational Environmental Satellite
2National Interagency Fire Center
3Weather Information Management System (database)
4National Environmental Satellite, Data, and Information Service
5National Fire Danger Rating System
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Most Campbell Scientific systems are built from individual components. This provides maximum flexibility for our customers, but it does not lend itself to pricing a "typical" system. Contact Campbell Scientific for assistance in pricing a system to meet the unique needs of the application.