18 Weather Monitoring Upper Air Sounding Systems
GRAW is your premier partner for meteorological measuring systems. For almost 80 years, GRAW have developed and manufactured high quality radiosondes and groundstations in Germany. GRAW offer a full line of upper air equipment including state of the art radiosondes, software (GRAWMET), antenna systems and balloon fi lling units. The company’s strong commitment to customer support and dedication to the overall satisfaction of their customers is what elevates GRAW above other radiosonde suppliers.
Following are some of GRAW’s product highlights at a glance.
The Radiosonde DFM-09 - extremely light, small and robust, measurement of pressure, temperature, humidity and wind, reliable
and precise measurement in all atmospheric layers, large range due to the use of latest telemetry technology, easy handling for daily soundings, and optional XDATA interface for external sensors.
The Groundstation GS-U - fully waterproof for harsh environments, small and light weight with integrated battery pack, ideal for portable / mobile applications, full-range receiver, 100% software controlled groundstation, easy and intuitive operation, and connection to standard PC via USB cable. The Pilotsonde PS-15 - Small and extremely light (49 g), wind-detection by GNSS, data transmission in 400 MHz band, and optional XDATA interface for external sensors.
Remote Atmospheric Observations by Lidar
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Leosphere is a world leader in atmospheric remote observations by Lidar. The company develops, sells and services a range of turnkey autonomous and networkable remote-sensing instruments allowing real-time key meteorological and atmospheric measurements such as wind, wind shear, wake turbulence, boundary layer height, clouds and aerosols.
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Leosphere’s technical experts will be pleased to answer your questions and to tell you more about the complementarity of Windcube Lidar series with other meteorological sensors, our new developments and most valuable recent deployments. The Windcube Product Manager invites you to a live demonstration of the software features.
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With over 1500 commercial coherent Doppler Lidar (laser radar) remote sensors now in operation globally, the technology has rapidly matured and is now deployed onshore and offshore by meteorological offi ces, airports, the aviation industry, wind farm developers and operators, defense, port installations and research institutes.
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Sensors Used in Antarctic Climate- Change Research
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Sensors from leading meteorological specialists, Biral, are currently being used as part of a research mission in Antarctica, headed by a French research group. The APRES3 campaign is a long term project with the aim of measuring precipitation in Antarctica, as well as monitoring climate change to understand the effect this has on the ice sheets. Biral’s VPF-730 Visibility and Present Weather Sensors form a part of an extensive range of equipment being used by the group, to help draw conclusions on the rate at which snow falls on the surface of Antarctica. The group recognised the diffi culty of measuring solid precipitation, given the extreme conditions and locations of the research, and therefore has deployed instruments, including Biral’s VPF-730, to receive the measurements at the French Antarctic Stations. They then use the measurements to calibrate and validate snow fall estimates by satellite and improve the building of climate models. It is these models that allow the group to generate better predictions over a century time scale and estimate the impact of climate on the sea-level. The experiment takes place at the French station, Dumont d’Urville and is supported by the French Polar Institute (IPEV), French National Science Foundation (ANR), and French Space Agency (CNES). Christophe Genthon, Research Scientist at the Laboratory of Glaciology and Environmental Geophysics commented, “The project uses Biral’s VPF-730 to measure in situ snow fall and blowing snow, and help us to differentiate the two. We hope that this will improve our knowledge and understanding of precipitation and blowing snow in Antarctica, which is the only continent where precipitation is still largely unknown because it is so diffi cult to measure. We found Biral’s design to be particularly rugged which is ideal for this project due to the extreme conditions.” Biral’s VPF-730 Visibility and Present Weather Sensors are designed to deliver high levels of accuracy, reliability and durability for a range of meteorological applications. The sensors come in a compact, robust package that is highly corrosion resistant with a hard coat anodised fi nish, making it particularly suitable for applications, like the Antarctic or offshore platforms, which see challenging weather conditions. The sensors are designed with an open sensor head to allow the free passage of air to improve the accuracy of measurements, with the ability to receive measurements within a 10m to 75km range. The sensors also use a backscatter receiver to help distinguish frozen from liquid precipitation.
Sensors from leading meteorological specialists, Biral, are currently being used as part of a research mission in Antarctica, headed by a French research group.
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