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

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...

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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 sources, and the air pollution is regional and complex, and the secondary pollution process cannot be ignored

In view of these characteristics, the traditional A-P value method, linear programming method and other technical methods are not completely suitable for the current measurement and calculation of atmospheric environmental capacity, and the iterative simulation method involves a large number of model iterative calculations and result inspections, resulting in a high degree of uncertainty in the simulation time In addition, due to its technical characteristics, the iterative simulation method, if the emission sources are grouped according to the emission characteristics, will be sensitive to different emission sources when reducing the same emission amount or emission ratio. There are differences in the influence of points, which makes the calculation results of environmental capacity non-unique. When multiple control strategies are considered, the difficulty of iterative simulation will be significantly increased. Therefore, iterative simulation usually takes all emissions of the research object as a whole, resulting in The calculated environmental capacity is difficult to reflect the constraint results of different control strategies

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