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Method for computer programmatic calculation of atmospheric environment capacity based on WRF model

An atmospheric environment and computer technology, applied in measuring devices, analyzing gas mixtures, instruments, etc., can solve the problems of poor time and space precision of calculation results and large dependence on experience

Pending Publication Date: 2019-02-15
河南省环境保护科学研究院
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Problems solved by technology

It effectively solves the problems of poor temporal and spatial accuracy and large empirical dependence of the calculation results caused by manual estimation when calculating the atmospheric environmental capacity, and the relative parameters in the formula using annual average values ​​and empirical values ​​​​in a large geographical range.

Method used

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  • Method for computer programmatic calculation of atmospheric environment capacity based on WRF model
  • Method for computer programmatic calculation of atmospheric environment capacity based on WRF model
  • Method for computer programmatic calculation of atmospheric environment capacity based on WRF model

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Embodiment 1

[0061] Embodiment 1, the method for calculating the atmospheric environment capacity based on the computer programming of WRF model, is characterized in that, calculation steps are as follows:

[0062] Step 1. Calculate the SO of a selected area 2 For the atmospheric environmental capacity of pollutants, the central coordinates of the area to be calculated are selected as 33.3° north latitude, 113.5° east longitude, and the side length is 50km × 50km. The grid processing is performed on the area to be calculated, and the grid is 50× 50 grids, select the calculation range and take a single grid as an example for calculation, and the calculation time is from 0:00 to 23:00 on January 1, 2012;

[0063]

[0064] Schematic diagram of the calculation area Computation grid for selection

[0065] According to the formula

[0066] δ=[0.006918-0.399912 cos θ 0 +0.070257 sinθ 0 -0.006758cos2θ 0 +0.000907 sin2θ 0 -0.002697cos3θ 0 +0.001480 sin3θ 0 ]×180 / π

[0067] Where: θ 0...

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Abstract

The invention relates to a method for computer programmatic calculation of atmospheric environment capacity based on a WRF model. The method effectively solves the problems of poor space-time precision and high experience dependence of the calculation result caused by the relevant parameters in the formula adopt the annual average value and the empirical value in a large geographical range when calculating the atmospheric environment capacity by using manual estimation. The technical scheme comprises: selecting a certain area to perform gridding processing, calculating the atmospheric stability grade of the area and the thickness of the atmosphere mixed layer by querying the relevant file calculation and combining the WRF model, and calculating the atmospheric environment capacity of the pollutants through a calculation formula. The WRF model can use the basic data published on the Internet to calculate and output various meteorological parameters accurate to hours, and the calculatedgeographical range can be accurate to several square kilometers. By preparing a computer program to extract the parameters required to calculate the atmospheric environment capacity from the WRF calculation result file, an atmospheric environment capacity that is accurate to an hour in any range can be achieved.

Description

technical field [0001] The invention relates to the technical field of environmental impact assessment, in particular to a method for calculating atmospheric environment capacity by computer programming based on a WRF model. Background technique [0002] Environmental capacity, also known as environmental load capacity, earth environment carrying capacity or load, is the maximum load of pollutants that an environment can accommodate under the premise that human survival and natural ecosystems will not be harmed. Atmospheric environmental capacity is mainly related to factors such as the thickness of the atmospheric mixed layer, wind speed, sedimentation rate, precipitation, and standard concentration of pollutants. The previous research on atmospheric environmental capacity and the calculation of atmospheric environmental capacity in practical applications mainly use the A value method. However, due to manual estimation, the values ​​of the relevant parameters in the formula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0004
Inventor 袁彩凤时翔明肖军仓李祥华张志张清敏王凯丽张晓果王婧
Owner 河南省环境保护科学研究院
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