Errors in radial velocity variance from Doppler wind lidar

doi:10.5194/amt-9-4123-2016

Title: Errors in radial velocity variance from Doppler wind lidar

Article Details
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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:

; ; Doubrawa, P. ^[1] ;

Cornell Univ., Ithaca, NY (United States). Sibley School of Mechanical and Aerospace Engineering
Cornell Univ., Ithaca, NY (United States). Dept. of Earth and Atmospheric Sciences

Publication Date:: 2016-08-29

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.

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                    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.

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                    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.

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@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}

}

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Free Publicly Accessible Full Text
Accepted Manuscript (DOE)
Publisher's Version of Record
10.5194/amt-9-4123-2016
https://doi.org/10.5194/amt-9-4123-2016

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Title: Errors in radial velocity variance from Doppler wind lidar

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