Abstract
The aim of this study is to experimentally demonstrate that the time-average Doppler spectrum of a continuous-wave (cw) lidar is proportional to the probability density function of the line-of-sight velocities. This would open the possibility of using cw lidars for the determination of the second-order atmospheric turbulence statistics. An atmospheric field campaign and a wind tunnel experiment are carried out to show that the use of an average Doppler spectrum instead of a time series of velocities determined from individual Doppler spectra significantly reduces the differences with the standard deviation measured using ordinary anemometers, such as ultra-sonic anemometers or hotwires. The proposed method essentially removes the spatial averaging effect intrinsic to the cw lidar systems.
Original language | English |
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Journal | Atmospheric Measurement Techniques |
Volume | 6 |
Pages (from-to) | 1673-1683 |
ISSN | 1867-1381 |
DOIs | |
Publication status | Published - 2013 |
Bibliographical note
© Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License.Keywords
- Earth and Environmental Sciences