Air quality fast traceability forecast method based on Lagrangian transportation model

A technology for air quality and weather forecasting models, applied in forecasting, data processing applications, calculations, etc., and can solve problems such as lack of combined applications

Inactive Publication Date: 2017-01-04
NANJING UNIV +1
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The combined application of Lagrangian model output and emission source

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  • Air quality fast traceability forecast method based on Lagrangian transportation model

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[0032] figure 1 It is a schematic diagram of the work flow of the method for rapid traceability and forecasting of air quality according to this embodiment. Such as figure 1 Said, the air quality rapid traceability forecasting method based on the Lagrangian transport model, it can generally include the following steps:

[0033] Step 1: Use the mesoscale weather forecast model to simulate the meteorological field in the desired simulation area;

[0034] Step 2: Extracting the key elements of the meteorological field output by the meteorological field simulation system according to the meteorological field requirements of the Lagrangian transport model;

[0035] Step 3: setting the basic parameters of the Lagrangian transport model, and calculating the space-time probability distribution (footprint) of the released particles through the Lagrangian transport model, and establishing a particle probability distribution database;

[0036] Step 4: Combining the spatiotemporal prob...

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Abstract

The invention provides an air quality fast traceability forecast method based on a Lagrangian transportation model. The method comprises the steps that a mesoscale weather forecasting mode is used to simulate the meteorological field of a simulated area; according to the meteorological field requirements of the Lagrangian transportation model, key elements, which are output by a meteorological field simulation system, of the meteorological field are extracted, and the data format is converted; basic parameters of the Lagrangian transportation model are set; the space-time probability distribution of released particles in the meteorological field is calculated through the Lagrangian transportation model, and a particle probability distribution database is built; the space-time probability distribution of the released particles and a pollution source list in the simulated area are combined to calculate the potential source contribution distribution of pollutants; and finally, statistical simulation is carried out on the calculated pollutant concentration and the contribution of each industry to the pollutant concentration in the pollutant list. According to the invention, the air pollution source of an area and a city can be analyzed and forecasted, and the identification of the key area of pollution contribution and quick response demonstration of and pollution emission reduction measures can be realized.

Description

technical field [0001] The present invention relates to the field of environmental protection technology, and further to the field of air quality monitoring, in particular to a method for rapid traceability and forecasting of air quality based on a Lagrangian transport model. Background technique [0002] With the rapid development of industrialization and urbanization, air pollution has an increasing impact on human society, posing a serious threat to people's life and production. Therefore, the public is increasingly concerned about the quality of ambient air. Based on the serious situation of air pollution, the Ministry of Environmental Protection requires all localities to carry out air pollution source analysis, air quality forecasting business and capacity building. At the same time, when heavy pollution occurs, it is urgent to analyze the source of air pollution, analyze and identify key areas of pollution contribution, and provide a basis for pollution control. At ...

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Application Information

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IPC IPC(8): G06Q10/04
CPCG06Q10/04
Inventor 丁爱军江飞仇欣刘强周德荣
Owner NANJING UNIV
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