WRF-CHEM-based large point pollution source atmosphere environment influence evaluating method

Abstract

A WRF-CHEM-based large point pollution source atmosphere environment influence evaluating method comprises the following steps: acquiring meteorology data and landform data, arranging a simulation area, and preprocessing the meteorology data and the landform data; selecting different parameterization scheme combinations having large influences on simulation, and designing a contrast experiment scheme; acquiring artificial source discharge and natural source discharge lists, and carrying out space, time, discharge height and species division and other pretreatments; running a WRF-CHEM model, and comparing simulation results of the different parameterization scheme combinations with observation data to obtain an optimum simulation scheme; processing large point pollution source discharge data, adding the processed large point pollution source discharge data to the model under the optimum simulation scheme, and running the WRF-CHEM; comparing the large point pollution source considered simulation result with the result under the optimum simulation scheme, and evaluating the degree and range of influences of the large point pollution source on circumferential atmosphere environment; and visually displaying the simulation result, and providing management decision basis for environment influence evaluating reports.

Description

technical field [0001] The invention relates to the technical field of atmospheric environment impact assessment, in particular to an atmospheric environment impact assessment method for large point pollution sources. Background technique [0002] With the rapid development of my country's economic level, the continuous improvement of urbanization, the rapid growth of urban motor vehicles, and the increasing demand for energy consumption, my country's urban air pollution has changed from soot-type pollution to high-concentration PM 2.5 It is characterized by complex air pollution, and the smog problem has become a serious problem that plagues human development. [0003] The environmental impact assessment system is a basic environmental protection legal system in my country, which refers to the analysis, prediction and assessment of the environmental impacts that may be caused by the implementation of planning and construction projects, and to propose countermeasures and mea...

AI Technical Summary

Problems solved by technology

Since the effect of the model in the regional simulation is closely related to the physical and chemical parameterization scheme, it is necessary to parameterize the radiation, land surface process, boundary layer, microphysics, cloud physics, gas phase chemistry, aerosol chemistry and other schemes to improve the effect of the system simulation. However, the current environmental impact assessment work lacks related work using WRF-CHEM, and there is no parametric scheme and method system that can adapt to environmental impact assessment

[0007] To sum up, the existing domestic atmospheric environmental impact assessment techniques and methods for the environmental PM of large-scale point pollution sources 2.5 The impact simulation effect is poor, and it cannot be applied to the environmental impact assessment of large-scale point pollution sources; the existing third-generation air quality model lacks work in the field of environmental impact assessment, and there is no suitable method system

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