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Dual-Doppler Lidar Measurements for Improving Dispersion Models.

Collier, CG, Davies, F, Bozier, KE, Holt, AR, Middleton, DR, Pearson, GN, Siemen, S, Willetts, DV, Upton, GJG and Young, RI 2005, 'Dual-Doppler Lidar Measurements for Improving Dispersion Models.' , Bulletin of the America Meteorological Society, 86 (6) , pp. 825-838.

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Abstract

Dispersion of pollutants in the urban atmosphere is a subject that is presently under much investigation. In this paper the variables used in turbulent dispersion and plume rise schemes of the Met Office Nuclear Accident Model (NAME) are discussed. Those parameters that can be measured by Doppler lidar are emphasized. Information derived from simultaneous measurements from two Doppler lidars are presented, using methodologies not tried previously, with the aim of improving the forecasting of urban pollution dispersion. The results demonstrate how Doppler lidars can be used as measuring tools for the specific parameters needed within urban dispersion models. A procedure used for carrying out the dual-lidar measurements is outlined. This research shows how dual-lidar measurements can be used to calculate the relevant dispersion parameters, and compares the dual-lidar measurements with model calculations in a case study. Differences between model parameters and lidar observations are discussed. Dual-Doppler lidar data are extremely useful for measuring turbulence profiles within the part of the atmospheric boundary layer that is inaccessible using traditional methods.

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 > QC350-467 Optics. Light
Subjects / Themes > Q Science > QC Physics > QC851-999 Meteorology - Climatology
Subjects / Themes > G Geography. Anthropology. Recreation > GE Environmental Sciences
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: Bulletin of the America Meteorological Society
Publisher: American Meteorological Society
Refereed: Yes
ISSN: 0003-0007
Depositing User: H Kenna
Date Deposited: 21 Sep 2007 14:49
Last Modified: 20 Aug 2013 16:49
URI: http://usir.salford.ac.uk/id/eprint/727

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