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Doppler lidar measurements of turbulent structure function over an urban area

Davies, F, Collier, CG, Pearson, GN and Bozier, KE 2004, 'Doppler lidar measurements of turbulent structure function over an urban area' , Journal of Atmospheric and Oceanic Technology, 21 (5) , pp. 753-761.

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Abstract

Analysis of radial wind velocity data from the Salford pulsed Doppler infrared lidar is used to calculate turbulent spectral statistics over the city of Salford in the United Kingdom. The results presented here, first, outline the error estimation procedure used to correct the radial wind velocity measurements from the Salford lidar system; second, they correct the data for the spatial averaging effects of the Salford lidar pulse; and finally, they use the corrected data to calculate turbulent spectral statistics. Using lidar data collected from the Salford Urban Meteorological Experiment (SALFEX), carried out in May 2002, kinetic energy dissipation rates, radial velocity variance, and integral length scales are calculated for the boundary layer above an urban canopy. The estimates of the kinetic energy dissipation rate from this method are compared to calculations using more traditional spectral methods. The estimates of the kinetic energy dissipation rate for the two methods are correlated and both show an increase in dissipation rate through the day. The procedure followed for the correction of the spatial averaging effects of the lidar pulse shape actually uses the Salford lidar pulse shape profile.

Item Type: Article
Themes: Subjects / Themes > T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication (Inc. www, lidar, radio, radar, phone, TV)
Subjects / Themes > Q Science > QC Physics > QC851-999 Meteorology - Climatology
Subjects / Themes > Q Science > QC Physics > QC350-467 Optics. Light
Subjects / Themes > Q Science > QA Mathematics > QA075 Electronic computers. Computer science > QA076 Computer software
Subjects outside of the University Themes
Schools: Colleges and Schools > College of Science & Technology > School of the Built Environment
Journal or Publication Title: Journal of Atmospheric and Oceanic Technology
Publisher: American Meteorological Society
Refereed: Yes
ISSN: 07390572
Depositing User: H Kenna
Date Deposited: 24 Sep 2007 09:58
Last Modified: 20 Aug 2013 16:50
URI: http://usir.salford.ac.uk/id/eprint/736

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