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Title: Errors in radial velocity variance from Doppler wind lidar

A high-fidelity lidar turbulence measurement technique relies on accurate estimates of radial velocity variance that are subject to both systematic and random errors determined by the autocorrelation function of radial velocity, the sampling rate, and the sampling duration. Our paper quantifies the effect of the volumetric averaging in lidar radial velocity measurements on the autocorrelation function and the dependence of the systematic and random errors on the sampling duration, using both statistically simulated and observed data. For current-generation scanning lidars and sampling durations of about 30 min and longer, during which the stationarity assumption is valid for atmospheric flows, the systematic error is negligible but the random error exceeds about 10%.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ;  [1] ; ORCiD logo [2]
  1. Cornell Univ., Ithaca, NY (United States). Sibley School of Mechanical and Aerospace Engineering
  2. Cornell Univ., Ithaca, NY (United States). Dept. of Earth and Atmospheric Sciences
Publication Date:
Grant/Contract Number:
EE0005379
Type:
Accepted Manuscript
Journal Name:
Atmospheric Measurement Techniques (Online)
Additional Journal Information:
Journal Name: Atmospheric Measurement Techniques (Online); Journal Volume: 9; Journal Issue: 8; Journal ID: ISSN 1867-8548
Publisher:
European Geosciences Union
Research Org:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES
OSTI Identifier:
1363864

Wang, H., Barthelmie, R. J., Doubrawa, P., and Pryor, S. C.. Errors in radial velocity variance from Doppler wind lidar. United States: N. p., Web. doi:10.5194/amt-9-4123-2016.
Wang, H., Barthelmie, R. J., Doubrawa, P., & Pryor, S. C.. Errors in radial velocity variance from Doppler wind lidar. United States. doi:10.5194/amt-9-4123-2016.
Wang, H., Barthelmie, R. J., Doubrawa, P., and Pryor, S. C.. 2016. "Errors in radial velocity variance from Doppler wind lidar". United States. doi:10.5194/amt-9-4123-2016. https://www.osti.gov/servlets/purl/1363864.
@article{osti_1363864,
title = {Errors in radial velocity variance from Doppler wind lidar},
author = {Wang, H. and Barthelmie, R. J. and Doubrawa, P. and Pryor, S. C.},
abstractNote = {A high-fidelity lidar turbulence measurement technique relies on accurate estimates of radial velocity variance that are subject to both systematic and random errors determined by the autocorrelation function of radial velocity, the sampling rate, and the sampling duration. Our paper quantifies the effect of the volumetric averaging in lidar radial velocity measurements on the autocorrelation function and the dependence of the systematic and random errors on the sampling duration, using both statistically simulated and observed data. For current-generation scanning lidars and sampling durations of about 30 min and longer, during which the stationarity assumption is valid for atmospheric flows, the systematic error is negligible but the random error exceeds about 10%.},
doi = {10.5194/amt-9-4123-2016},
journal = {Atmospheric Measurement Techniques (Online)},
number = 8,
volume = 9,
place = {United States},
year = {2016},
month = {8}
}