Laser radar transport flux computing method and laser radar transport flux computing device

A technology of lidar and calculation method, applied in measurement devices, radio wave measurement systems, suspension and porous material analysis, etc., can solve the problems of low popularity, difficult implementation, and expensive Doppler wind profiler radar.

Inactive Publication Date: 2017-04-26
BEIJING MUNICIPAL ENVIRONMENTAL MONITORING CENT
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Problems solved by technology

[0003] In the current particle pollution detection method, the Doppler wind profile radar (Doppler Windprofile radar) is mainly used to obtain wind field data, but the Doppler wind profile radar is very expensive, the price is as high as s

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  • Laser radar transport flux computing method and laser radar transport flux computing device
  • Laser radar transport flux computing method and laser radar transport flux computing device
  • Laser radar transport flux computing method and laser radar transport flux computing device

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[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making...

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Abstract

The invention provides a laser radar transport flux computing method and a laser radar transport flux computing device. The laser radar transport flux computing method includes acquiring extinction coefficients of particulate pollutants collected by laser radar as well as reanalysis-mode meteorological data including wind-field data and humidity data; subjecting the extinction coefficients to humidity correction according to the humidity data in the reanalysis-mode meteorological data so as to obtain dry aerosol extinction coefficients; computing particulate pollutant vertical profiles according to the dry aerosol extinction coefficients and ground monitoring particulate pollutants; computing laser radar transport fluxes according to the particulate pollutant vertical profiles and the wind-field data of the reanalysis-mode meteorological data. The laser radar transport flux computing method has the advantages that the reanalysis-mode meteorological data are used for humidity correction of the extinction coefficients and laser radar transport flux computation, are acquired simply at a quite low cost and comprise the wind-field data and the humidity data which are both high in precision, and accordingly the whole laser radar transport flux computing method is low in cost and high in popularization degree.

Description

technical field [0001] The invention relates to the field of environmental monitoring, in particular to a method and device for calculating laser radar delivery flux. Background technique [0002] Laser radar (LIDAR) is currently the most effective means of detecting the vertical distribution of particle pollutants (Particle Mater PM, also known as atmospheric aerosol). The current methods for detecting particulate pollutants mainly include: obtaining the extinction coefficient product of particulate pollutants in the detection area through lidar, obtaining wind field data in the detection area through Doppler wind profile radar, and then using the wind data provided by the wind profile radar to The field data is combined with the extinction coefficient product of the lidar to calculate the transport flux of particulate pollutants in the detection area. [0003] In the current particle pollution detection method, the Doppler wind profile radar (Doppler Windprofile radar) is...

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Application Information

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IPC IPC(8): G01N15/06G01S7/497
CPCG01N15/06G01N2015/0693G01S7/497
Inventor 李倩张大伟李令军赵文慧姜磊张立坤
Owner BEIJING MUNICIPAL ENVIRONMENTAL MONITORING CENT
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