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Microbial aerosol atmospheric diffusion hazard assessment method

An atmospheric diffusion and microbial technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of insufficient pre-assessment ability of microbial aerosol atmospheric diffusion situation, difficult to accurately describe microbial aerosol atmospheric diffusion mode, no Considering the change of the wind field with space, etc., to achieve the effect of improving the calculation accuracy and reliability, improving the reliability and improving the accuracy

Active Publication Date: 2015-12-09
INST OF BIOENG ACAD OF MILITARY MEDICAL SCI OF THE CHINESE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The use of wind field data is too simplified, all of which are set as the wind direction and wind speed at the location of the emergency, without considering the variation of the wind field with space, and it is difficult to accurately describe the atmospheric diffusion mode of microbial aerosols under complex terrain conditions
[0006] (2) None of them considered the change of wind field over time, and the ability to pre-assess the atmospheric diffusion of microbial aerosols was insufficient

Method used

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  • Microbial aerosol atmospheric diffusion hazard assessment method
  • Microbial aerosol atmospheric diffusion hazard assessment method
  • Microbial aerosol atmospheric diffusion hazard assessment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Step 1: For the Beijing area, use the WRF mesoscale numerical weather model to establish an automated numerical weather forecasting business system. Table 2 shows the parameters of the established WRF numerical weather prediction system in Beijing.

[0057] Table 2 WRF numerical weather prediction system parameters

[0058] grid center point

116.6E, 40.375N

Nesting levels

three levels of nesting

grid horizontal resolution

9kmⅹ9km, 3kmⅹ3km, 1kmⅹ1km

vertical grid

28 layers with different distances, the top layer is 50hpa

terrain data

Modis_30s

projection method

Lambert projection

Microphysical Process Scheme

Purdue-Lin Scheme

Long Wave Radiation Scheme

RRTM Scheme

Shortwave Radiation Scheme

Dudhia Scheme

Near-surface plan

Monin-Obukhov (Janjic Eta) Scheme

Boundary Layer Scenario

Mellor-Yamada-Janjic(Eta)TKE scheme

land surface scheme

unified...

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Abstract

The invention provides a microbial aerosol atmospheric diffusion hazard assessment method which is characterized by comprising the following steps of: step 1: for a concerned region, establishing an automated numerical weather prediction system for obtaining weather data; step 2: in combination with the weather data and microbial pathogen aerosol release information, performing simulation to obtain a microbial aerosol atmospheric diffusion trend; step 3: drawing diffusion trends of released microbial aerosol at different time to pre-judge a pollution area and concentration distribution of the microbial aerosol; and step 4: assessing the number of people possibly infected each day and the death toll. Compared with the prior art, the method has the characteristics that the timeliness still can meet corresponding time demands of emergency on the basis of improving the precision and credibility of microbial aerosol atmospheric diffusion hazard assessment and calculation, and relatively high universality is achieved.

Description

technical field [0001] The invention relates to a biological hazard assessment visualization method, in particular to a microbial aerosol atmospheric diffusion hazard assessment method. Background technique [0002] After the deliberate release of microbial aerosols or the leakage of microbial aerosols due to accidents, quickly predict the trend of microbial aerosol cloud diffusion with the atmosphere, the scope of contaminated areas, and the level of ground pollution concentration, and pre-evaluate the number of possible infections and deaths The number of people, etc. has vital guiding significance for formulating reasonable and effective emergency response measures. The U.S. military field manual introduces the method of using the trapezoidal method to quickly delineate the area contaminated by biological warfare agent aerosols, which is used in wartime. The Chinese patent application "CN101894353A A Simulator System for On-site Hazard Assessment of Emergent Biological E...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 郑涛许晴祖正虎
Owner INST OF BIOENG ACAD OF MILITARY MEDICAL SCI OF THE CHINESE
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