CMAQ model-based rapid atmospheric environment capacity measurement and calculation method, storage medium and terminal

An atmospheric environment and model technology, applied in computing, special data processing applications, instruments, etc., can solve the problems of computing resources and computing time input, the difficulty of iterative simulation, and the inability to deal with the problem of secondary pollution, etc., to achieve clear physical meaning, The effect of flexible computing, saving computing time and resources

Active Publication Date: 2019-03-08
CHENGDU ACADEMY OF ENVIRONMENTAL SCI
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Problems solved by technology

However, the accuracy of this method is affected by factors such as the uncertainty of the emission inventory of pollution sources, the degree of refinement of the chemical mechanism, and local applicability.
Although the improved three-dimensional iterative calculation method overcomes the difficulties encountered by the traditional single method lock, and performs three-dimensional optimization on the space, industry, and precursor of the environmental capacity, the large amount of calculation and accuracy problems caused by multiple iterations There is still room for improvement
[0006] The linear programming method is suitable for capacity analysis under simple situations (clear pollution discharge structure and distribution), and is usually suitable for small-scale development areas. Optimize the configuration of the environmental capacity, but this method is generally unable to deal with the significant secondary pollution problem in the nonlinear process due to the constraints of the linear response relationship, and the secondary particles have a non-negligible impact on the PM2.5 concentration
[0007] At present, the research area of ​​atmospheric capacity generally has the characteristics of large spatial scale and diverse emission so

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  • CMAQ model-based rapid atmospheric environment capacity measurement and calculation method, storage medium and terminal
  • CMAQ model-based rapid atmospheric environment capacity measurement and calculation method, storage medium and terminal
  • CMAQ model-based rapid atmospheric environment capacity measurement and calculation method, storage medium and terminal

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Embodiment 1

[0035] This embodiment provides a fast calculation method of atmospheric environmental capacity based on the CMAQ model. This method has the characteristics of small amount of calculation and clear physical meaning, and solves the problem that the traditional iterative method calculates the large amount of calculation of environmental capacity and cannot consider the difference in control efforts of different emission sources. According to the characteristics of urban pollution emissions, multiple up-to-standard emission reduction schemes can be proposed without repeated calculations. The calculated emission-concentration response relationship can also be used for local governments to propose countermeasures and suggestions for air pollution prevention and control, providing more scientific technical support for atmospheric environmental governance. .

[0036] Specifically, as figure 1 As shown, the described method comprises the following steps:

[0037] S1: Establish emissi...

Embodiment 2

[0061] This embodiment discloses a set of specific actual data using Embodiment 1, taking the calculation of the environmental capacity of a certain city as an example.

[0062] First of all, the emission inventory needs to be grouped. Considering the difficulty of emission control and the amount of model calculation, it can usually be divided into five categories: industrial sources, dust sources, mobile sources, domestic sources, and other sources. The model simulates the pollutant concentration of different emission sources under different emission ratios according to the representative month, and draws the emission-concentration response curve with the emission ratio X and the environmental concentration Y.

[0063] in, Figure 2 to Figure 5 Respectively represent the emission-concentration response curve of mobile sources (ie, motor vehicles), the emission-concentration response curve of industrial sources, the emission-concentration response curve of dust sources, and th...

Embodiment 3

[0073] Based on the realization of Embodiment 1, this embodiment also provides a storage medium, on which computer instructions are stored, and the steps of the fast atmospheric environment capacity measurement method based on the CMAQ model described in Embodiment 1 are executed when the computer instructions are running. .

[0074] Based on this understanding, the technical solution of this embodiment is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium. Several instructions are included to make a computer device (which may be a personal computer, server, or network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-OnlyMemory, ROM), random-access memory (Random...

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Abstract

The invention discloses a CMAQ model-based rapid atmospheric environment capacity measurement and calculation method, a storage medium and a terminal. The method comprises the following steps of establishing an emission sequence; simulating air quality; establishing an emissions-concentration response function; calculating the up-to-standard concentration; establishing an emission reduction hypothesis and solving the environmental capacity, sorting the simulation result and the corresponding emission ratio to obtain contribution values of different emission sources to the environmental concentration; according to different pollution source contribution conditions, designing corresponding reduction schemes, and combining the emission-emission of corresponding emission sources; solving a concentration response function, and solving a corresponding pollutant concentration contribution; and combining according to the actual management and control requirements to obtain the standard environment concentration, and calculating to obtain the corresponding pollutant discharge amount, namely the atmospheric environment capacity. According to the present invention, the calculation time and resources are effectively saved, clear physical significance is achieved, calculation is flexible in different pollution control modes, and the method can be used for solving the problem of atmosphericenvironment capacity balance calculation of different scales such as provincial level, urban level and district and county level.

Description

technical field [0001] The invention relates to a fast atmospheric environment capacity measurement method, a storage medium and a terminal based on a CMAQ model. Background technique [0002] As my country pays more and more attention to air quality, Chinese scholars have done a lot of research on the atmospheric capacity under different environmental objectives. An important support for management and control. [0003] Traditional calculation methods of atmospheric environmental capacity include A-P value method, iterative simulation method and linear programming method. [0004] The A-P value method is the simplest method for estimating the atmospheric environmental capacity. Its characteristic is that it does not need to know the layout, emission amount and emission mode of pollution sources. It can roughly estimate the atmospheric environmental capacity of the research area according to the area and natural conditions, which is simple and easy. , which has a certain re...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 陆成伟谭钦文杨欣悦杨斌平邓也尚英男周子航魏微黄凤霞张恬月胡翔张鑫宋丹林刘合凡
Owner CHENGDU ACADEMY OF ENVIRONMENTAL SCI
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