Errors in radial velocity variance from Doppler wind lidar

Wang, H.; Barthelmie, R. J.; Doubrawa, P.; Pryor, S. C.

doi:10.5194/amt-9-4123-2016

Title: Errors in radial velocity variance from Doppler wind lidar

Journal Article · 28 August 2016 · Atmospheric Measurement Techniques (Online)

DOI: https://doi.org/10.5194/amt-9-4123-2016 · OSTI ID:1363864

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Cornell Univ., Ithaca, NY (United States). Sibley School of Mechanical and Aerospace Engineering; Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14853 USA
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

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%.

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Research Organization:: Cornell Univ., Ithaca, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: EE0005379

OSTI ID:: 1363864

Journal Information:: Atmospheric Measurement Techniques (Online), Journal Name: Atmospheric Measurement Techniques (Online) Journal Issue: 8 Vol. 9; ISSN 1867-8548

Publisher:: European Geosciences UnionCopyright Statement

Country of Publication:: United States

Language:: English

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