METEOLAB Tor Vergata - Rome

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METEOLAB is an integrated system aimed at the operational monitoring of turbulence and dynamics of the atmosphere. METEOLAB includes SODARs (Sound Detection And Ranging), sonic anemometers and radiometers. The SODAR is an acoustic remote sensor to investigates the phenomena taking place in the Atmospheric Boundary Layer (ABL). SODARS have different vertical range and resolution depending on the frequency of the emitted acoustic tones. SL-SODAR, Fig.1 and Fig.2 and mini-SODAR, Fig.3 (maximum range 150 m); SODAR, in Fig.4 (maximum range 1000 m). ISAC SODARS when used as Doppler systems allow to retrieve the wind profile. The wind vertical resolution depends on the acoustic tone duration: 5m for SL-SODAR, 17 m for mini-SODAR and 30 m for SODAR. The SODAR provide a "shot" of the thermal structure of the ABL (Fig. 5). Sonic anemometers (Metek USA-1 and GILL HS-50, Fig. 6) are used to measure the three wind components, the sonic temperature, the atmospheric turbulent heat and momentum fluxes. A fast gas analyser open-path (LI-COR, li-7500) provides the latent heat flux (Fig.6). Radiometers (Kipp and Zonen, CNR-1) measure the shortwave and longwave radiation up and down.