![]() ![]() ![]() ![]() To offer a forum for exchange of experience and for capacity building in the field of weather radars within EUMETNET To provide support to its members in environmental and societal issues related to weather radars, such as radar siting, radio-frequency interference and the impact of wind farms To enhance expertise in the field of weather radar (hardware, software, products, quality, network design etc.) within EUMETNET and the whole weather radar community To develop the OPERA Data Information Model (ODIM) To operate and develop a data hub, which collects radar volume data, distributes quality flagged volume data to modelers and other radar data users, and produces quality controlled radar products ![]() vertical, 30 degrees North and 30 degrees East The reception of the return sound signals.įrequency. Specifications of the Sodar next to the 45 MHz INSU/Météo VHF Radar inĪ Sodar is fonctionnally identical to a VHF radar, except that it emitsĪcoustic soundwaves with a loud-speaker which also serves as microphone during Its vertical range is smaller, but its antenna is much smaller for the same beamwidth.įrequency. Voldorad (Volcanic Doppler radar) UHF Radar SpecificationsĪ UHF radar is fonctionnally identical to a VHF radar, except that the electromagnetic wavelength is smaller (0,24 m instead of 6,66 m). woofer-speaker and acoustic hornīeamwidth. The virtual temperature, is deduced from the value of the measured speed of this sound wave.įrequency. Temperature, whose value lies between that of the real temperature and that of This sound wave (around 300 m/s) within the radial velocity range (see theĪbove Table) of the measurements made by the Doppler radar. InĬlermont-Ferrand, a frequency shift of the received signal brings the speed of Troposphere, is tracked by a Doppler radar (VHF profiler in our case). Generated by a coninuous acoustic source and propagating upward in the In Clermont-Ferrand and Toulouse, a RASS (Radio-Acoustic Souding System) isĬoupled to the wind profiler radar. Obtain a full scale JPEG image of 140 kb) 1.9 to 7-8 km (1.9 to 12-15 km for the coded mode) Obtain a full scale JPEG image of 130 kb) West directions, depending of a control sequence : Vertically, and at 15 degrees off the vertical in the North, East, South and Without or with fixed delay, enabling the radar beam to be successively pointed Is made of 2 perpendicular sets of 60 m Co-Co (Coaxial-Colinear) lines feeded The antenna field of the 45 MHz INSU/Météo VHF Radar near CLERMONT-FERRAND Obtain a full scale JPEG image of 110 kb) vertical, 15 degrees North, 15 degrees East, 1988 - presentĤ5 MHz INSU/Météo VHF Radar Specificationsįrequency. SAINT-SANTIN - latitude : 44 39 N = 44.650 Feb. L'OBSERVATOIRE - longitude : 5 42 45 E = 5.713 LANNEMEZAN - latitude : 43 7 59 N = 43.133 Oct. Location (freq.) Geographic Coordinates DateĬLERMONT-FERRAND - latitude : 45 45 52 N = 45.764 Dec. Michelin (click on the image to obtain a full scale GIF image of 440 Radars are semi-mobile clear air Doppler radars which are generally The INSU/Météo ST (called Stratosphere-Troposphere radar) wind profiler ![]()
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