Įxample of how to reference this exhibit: A Brief History of Upper-air Observations. National Oceanic and Atmospheric Administration.“ History of Atmospheric Cosmic Ray Research at the National Bureau of Standards.” Journal of Research of the National Institute of Standards and Technology, Vol. “An improved radio sonde and its performance.” Journal of Research of the National Bureau of Standards, Vol. “A method for the investigation of upper-air phenomena and its application to radio meteorography.” Journal of Research of the National Bureau of Standards, Vol. “A New Electrical Telemeter.” Technologic Papers of the Bureau of Standards, Vol. “A Practical System for Radiometeorography.” Journal of the Aeronautical Sciences, Vol. National Bureau of Standards Special Publication 555, (Oct. Achievement in Radio: Seventy years of radio science, technology, standards, and measurement at the National Bureau of Standards. National Bureau of Standards Miscellaneous Publication 275, (1966). Measures for Progress: A history of the National Bureau of Standards. Ascending into the stratosphere (as high as 35,000 m or 115,000 feet) and able to drift more than 200 km (125 miles) within an average flight time of about 150 minutes. The average radiosonde has a battery-life of 500 minutes, but it lives a full life well within that timeframe. While the fundamentals of this technique remain the same, technological advancements have enhanced the measurement accuracy and efficiency of the devices in flight. Radiosondes have been launched into the sky using weather balloons since the late 1920s. The small battery-powered devices use a radio signal to transmit the measurements for analysis. Radiosondes, or radio meteorographs, take real-time weather measurements such as pressure, temperature, relative humidity, and windspeed. Today these devices, known as radiosondes, are used daily around the world for weather forecasting and atmospheric research. Beginning in the 1930s the National Bureau of Standards (NBS) developed compact packages of radio equipment that could be sent aloft by balloon to gather weather data and transmit it back to a ground receiver.
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