Determination of turbulence parameters from the spectra of vertical wind velocity component measured by a pulsed coherent Doppler lidar. Part II. Experiment at the BEO of the IAO SB RAS

2021 ◽  
Vol 34 (10) ◽  
pp. 779-791
Author(s):  
I.N. Smalikho ◽  
V.A. Banakh ◽  
A.M. Sherstobitov ◽  
A.V. Falits
Keyword(s):  
Wind Velocity ◽  
Velocity Component ◽  
Vertical Wind ◽  
Doppler Lidar ◽  
Coherent Doppler Lidar ◽  
Turbulence Parameters ◽  
Vertical Wind Velocity

scholarly journals Measurements of Rainfall Velocity and Raindrop Size Distribution Using Coherent Doppler Lidar

2016 ◽  
Vol 33 (9) ◽  
pp. 1949-1966 ◽  
Author(s):  
Makoto Aoki ◽  
Hironori Iwai ◽  
Katsuhiro Nakagawa ◽  
Shoken Ishii ◽  
Kohei Mizutani
Keyword(s):  
Size Distribution ◽  
Wind Velocity ◽  
Vertical Wind ◽  
Doppler Spectrum ◽  
Doppler Lidar ◽  
Stratiform Rain ◽  
Raindrop Size Distribution ◽  
Raindrop Size ◽  
Rain Events ◽  
Vertical Wind Velocity

AbstractRainfall velocity, raindrop size distribution (DSD), and vertical wind velocity were simultaneously observed with 2.05- and 1.54-μm coherent Doppler lidars during convective and stratiform rain events. A retrieval method is based on identifying two separate spectra from the convolution of the aerosol and precipitation Doppler lidar spectra. The vertical wind velocity was retrieved from the aerosol spectrum peak and then the terminal rainfall velocity corrected by the vertical air motion from the precipitation spectrum peak was obtained. The DSD was derived from the precipitation spectrum using the relationship between the raindrop size and the terminal rainfall velocity. A comparison of the 1-min-averaged rainfall velocity from Doppler lidar measurements at a minimum range and that from a collocated ground-based optical disdrometer revealed high correlation coefficients of over 0.89 for both convective and stratiform rain events. The 1-min-averaged DSDs retrieved from the Doppler lidar spectrum using parametric and nonparametric methods are also in good agreement with those measured with the optical disdrometer with a correlation coefficient of over 0.80 for all rain events. To retrieve the DSD, the parametric method assumes a mathematical function for the DSD and the nonparametric method computes the direct deconvolution of the measured Doppler lidar spectrum without assuming a DSD function. It is confirmed that the Doppler lidar can retrieve the rainfall velocity and DSD during relatively heavy rain, whereas the ratio of valid data significantly decreases in light rain events because it is extremely difficult to separate the overlapping rain and aerosol peaks in the Doppler spectrum.

Vertical wind velocity measurements by a Doppler lidar and comparisons with a Doppler sodar

1981 ◽  
Vol 20 (12) ◽  
pp. 2048 ◽  
Author(s):  
F. Congeduti ◽  
G. Fiocco ◽  
A. Adriani ◽  
C. Guarrella
Keyword(s):  
Wind Velocity ◽  
Vertical Wind ◽  
Doppler Lidar ◽  
Velocity Measurements ◽  
Doppler Sodar ◽  
Vertical Wind Velocity

Measurements of wind velocity and direction with coherent Doppler lidar in conditions of a weak echo signal

2010 ◽  
Vol 23 (5) ◽  
pp. 381-388 ◽  
Author(s):  
V. A. Banakh ◽  
A. Brewer ◽  
E. L. Pichugina ◽  
I. N. Smalikho
Keyword(s):  
Wind Velocity ◽  
Doppler Lidar ◽  
Echo Signal ◽  
Coherent Doppler Lidar
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