Atmosphere environmental impact assessment system and environmental impact assessment method based on GIS (Geographic Information System) technology and AERMODE model

Abstract

The invention relates to the technical field of computer environment assessment, in particular to an atmosphere pollution source diffusion assessment system and an assessment method constructed based on a GIS (Geographic Information System) technology and an AERMODE model. The assessment system comprises a pollution source parameter database, a pollution source meteorological database, a pollution source forecast point and sensitive point database, an AERMODE model subsystem and a GIS subsystem, wherein the pollution source parameter database is used for storing pollution source parameter data meeting AERMODE format requirements; the pollution source meteorological database is used for storing pollution source meteorological data meeting the AERMODE format requirements; the pollution source forecast point and sensitive point database is used for storing forecast point and sensitive point data meeting the AERMODE format requirements; the AERMODE model subsystem acquires data from the pollution source parameter database, the pollution source meteorological database and the pollution source forecast point and sensitive point database and operates the AERMODE model for analysis; and the GIS subsystem renders and outputs the analysis result of the AERMODE model subsystem to a map.

Description

technical field [0001] The invention relates to the technical field of computer environment evaluation, in particular to an evaluation system and evaluation method for constructing an air pollution source diffusion evaluation system based on GIS technology and an AERMODE model. Background technique [0002] The technology of conducting diffusion simulation analysis on air pollution sources and conducting environmental impact assessment has important practical value in the field of environmental protection. The Ministry of Environmental Protection's "Technical Guidelines for Environmental Impact Assessment Atmospheric Environment HJ2.2-2008" national standard recommends five diffusion evaluation models (1) Estimation model, which is a single-source prediction model, suitable for determining the evaluation level and evaluation scope, open source ;(2) AERMODE mode, suitable for primary and secondary evaluation projects with an evaluation distance of less than 50KM, which can si...

AI Technical Summary

Problems solved by technology

AERMODE is developed in Fortran language, command line interface, due to many parameters and complicated steps, the output result is pure data, which is very insufficient in human-computer interaction and data display, and it is very inconvenient to operate and use. It improves the interactive performance and strengthens the analysis of the result data. The display effect is a common problem that needs to be solved when applying the AERMODE model for environmental impact assessment analysis

[0003] At present, the domestic air pollution source diffusion evaluation system has the following shortcomings: it is not convenient to input the topographic data of the prediction point without the introduction of GIS technology, and the effect and function are poor; the local pollution source, weather, and prediction point database have not been established, and Realize the automatic update of pollution sources and meteorological data, and there is still room for improvement in the convenience of user input; when generating concentration contours from the prediction results, there is no choice of interpolation method, which is not convenient for users to judge the accuracy of the results

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