Ozone source analysis method and device based on observation data

Abstract

The invention provides an ozone source analysis method and device based on observation data. The method comprises the steps: acquiring meteorological field data and pollutant observation data of a target area in a preset time period; performing abnormal value elimination processing and missing value restoration processing on the pollutant observation data; determining a plurality of precursor concentration combination scenes according to the meteorological field data and the processed pollutant observation data; and identifying precursor pollutants which play a leading role in the generation of ozone according to the plurality of precursor concentration combination scenes. The quality of pollutant observation data is strictly controlled, and the time continuity of the pollutant observationdata is guaranteed. Ozone generation is simulated through an atmospheric chemical box mode, chemical reactions are considered more comprehensively, the calculation speed is high, and calculation resources are saved. The precursor pollutants playing a leading role can be rapidly recognized, the optimal control proportion of each precursor is quantitatively calculated, the control strategy of the precursors can be conveniently determined, and data support is provided for ozone control.

Description

technical field [0001] The application belongs to the technical field of environmental protection, and in particular relates to an ozone source analysis method and device based on observation data. Background technique [0002] In recent years, atmospheric ozone pollution has been increasing and has become one of the important pollutants that plague urban air quality management. Tropospheric ozone is a secondary pollutant generated by a series of complex reactions triggered by the photolysis of nitrogen oxides. The main components involved in the ozone photochemical reaction process include volatile organic compounds (Volatile Organic Compounds, VOCs) and nitrogen oxides (Nitrogen Oxides, NO x ) and other ozone precursors. To solve the problem of urban ozone pollution, it is first necessary to identify the ozone precursors that play a leading role in the formation of ozone in the city. [0003] At present, in the related art, a numerical model simulation method is usually...

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Problems solved by technology

[0004] However, the above-mentioned related technologies need to calculate the dynamic changes of the pollutant concentration on each grid point in the space, which requires a large amount of calculation, and usually requires the support of more high-performance computing resources

The difficulty of obtaining a high-quality gridded emission inventory also seriously affects the application effect of the above-mentioned related technologies.

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