Atmospheric Flow Fields: Theory, Numerical Methods And Software Tools

This e-book is a collection of chapters on practical and theoretical aspects of atmospheric flows over flat and complex terrain, with applications to air pollution and wind energy. It is divided ...
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Estimation of the Lower Atmospheric Turbulence Parameters by Sodar-Rass Unit and Sonic Anemometer

Pp. 174-184 (11)

Renato Ricci, Roberta Cocci Grifoni and Marco Mazzieri

Abstract

Purpose of this chapter was to analyze the planetary boundary layer (PBL) using remote sensing tools. Sodar techniques allowed us to obtain speed and wind direction profiles from a height ranging from 30/40 m. to 1000 m. The SODAR (Sound Detection And Ranging) is, in fact, an alternative to the use of cup anemometers and offers the possibility of measuring both the wind speed distribution with height and the wind direction. In particular, these instruments play a key role both to assess the wind resource in a specific area and to estimate the alteration of the wind field caused by the complex orography of the region.

Keywords:

Aerogenerator, Atmospheric Temperature Structure Parameter, complex orography, Cup Anemometer, environmental wind gallery, orographic acceleration, orographic acceleration, planetary boundary layer, RASS, remote sensing, Snodar, Sodar, Sodar calibration, speed patterns, Thermal Bubble, Ultrasonic Anemometer, Wind gallery, wind park, wind speed, wind turbines.

Affiliation:

School of Architecture and Design “E. Vittoria”, Camerino University, Ascoli Piceno, Italy