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PM2.5 three-dimensional transport flux calculation method and apparatus

A technology of PM2.5 and calculation method, which is applied in calculation, special data processing applications, instruments, etc., can solve the problem that the three-dimensional transport flux cannot be calculated, and achieve the effect of simple calculation method

Inactive Publication Date: 2016-11-16
BEIJING MUNICIPAL ENVIRONMENTAL MONITORING CENT
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Problems solved by technology

This calculation method is simple, but it can only calculate the transport flux in the vertical direction of a point, and cannot calculate the three-dimensional transport flux

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  • PM2.5 three-dimensional transport flux calculation method and apparatus
  • PM2.5 three-dimensional transport flux calculation method and apparatus
  • PM2.5 three-dimensional transport flux calculation method and apparatus

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Embodiment Construction

[0028] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0029] On the one hand, the present invention provides a calculation method of PM2.5 three-dimensional transport flux, such as figure 1 As shown, taking Beijing as an example, it includes:

[0030] Step S1: Obtain the height profile of the aerosol extinction coefficient from the ground retrieved by the lidar system;

[0031] In this step, if figure 2 and image 3 As shown, Beijing is taken as an example here. The monitoring points of the lidar system are mainly distributed in the four areas of Dingling, Dongsi, Yongledian and Liulihe. The initial aerosol extinction coefficient height profile represents the distribution in the northwest (Changping, Yanqing) and northeast (Huairou, Miyun, Pinggu, Shunyi). The height profile of the aerosol extinction c...

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Abstract

The invention discloses a PM2.5 three-dimensional transport flux calculation method and apparatus, and belongs to the field of atmospheric remote sensing and monitoring and numerical simulation. The PM2.5 three-dimensional transport flux calculation method comprises the steps of obtaining an aerosol extinction coefficient height profile of a target region obtained through inversion operation by a laser radar system from the ground; obtaining PM2.5 mass concentration, detected by a ground particulate matter detector, of the ground of the target region; performing calculation according to the aerosol extinction coefficient height profile of the target region from the ground and the PM2.5 mass concentration to obtain a PM2.5 mass concentration height profile of the target region from the ground; performing final calculation according to horizontal and vertical meteorological fields, simulated according to a WRF mode, of the target region and the PM2.5 mass concentration height profile to obtain a PM2.5 total transport flux of the target region; and calculating PM2.5 horizontal and vertical net transport fluxes in a boundary of the target region. According to the method and the apparatus, the calculation is easy and the PM2.5 three-dimensional transport fluxes dynamically changed in different directions and different boundaries can be quantitatively calculated.

Description

technical field [0001] The invention relates to the field of atmospheric remote sensing monitoring and data simulation, in particular to a calculation method and device for PM2.5 three-dimensional transport flux. Background technique [0002] With the rapid development of my country's economy and society, coal-based energy consumption has risen sharply, and the number of motor vehicles has increased sharply. The trend of air pollution in my country has not been fundamentally curbed, and has changed from a single soot-type pollution to a soot-type Composite pollution coexisting with photochemical pollution. In recent years, the concentration of PM2.5 (particulate matter with an aerodynamic diameter less than 2.5 microns) has remained high in the Beijing-Tianjin-Hebei region, the Pearl River Delta, and the Yangtze River Delta, and air pollution has shown regional, compound, and compressed characteristics. Regional air pollution problems represented by the Beijing-Tianjin-Hebei...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 程念亮张大伟李云婷邱启鸿王欣李令军
Owner BEIJING MUNICIPAL ENVIRONMENTAL MONITORING CENT
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