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Inhalable particle concentration estimating method based on meteorological observation data

A particle concentration and meteorological observation technology, which is applied in the direction of electrical digital data processing, special data processing applications, calculations, etc., can solve the problems of complexity, expensive maintenance of observation equipment, uneven distribution of environmental monitoring stations, etc., and achieve the effect of expanding the spatial range

Inactive Publication Date: 2014-07-23
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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Problems solved by technology

At present, PM10 monitoring mainly relies on ground environmental stations, but due to the generally expensive observation equipment and complicated maintenance, the distribution of environmental monitoring stations is uneven and the number is limited

Method used

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  • Inhalable particle concentration estimating method based on meteorological observation data
  • Inhalable particle concentration estimating method based on meteorological observation data
  • Inhalable particle concentration estimating method based on meteorological observation data

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Embodiment Construction

[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] figure 1 It is a flowchart of a method for estimating inhalable particulate matter (PM10) based on meteorological observation data according to an embodiment of the present invention, including the following steps:

[0021] Step S1, select the modeling site: select the surface meteorological site (with visibility and relative humidity observation data) and the environmental monitoring site (with PM10 observation data) for modeling, and both are required to be in the same environment. For example, if the following conditions are satisfied: 1) the straight-line distance is relatively short (the distance range A is set according to the characteristics of the environme...

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Abstract

The invention discloses a method for estimating the concentration of near-ground inhalable particles (PM10) based on observation data of atmospheric visibility and relative humidity. The method comprises the steps of (S1) calculating a near-ground aerosol scatting coefficient based on horizontal visibility observation data, (S2) calculating aerosol average quality scattering efficiency based on a near-ground aerosol extinction coefficient and PM10 quality concentration, (S3) establishing a correlation model of the aerosol average quality scattering efficiency and the relative humidity according to seasons, background environments and meteorological information, and (S4) estimating the PM10 concentration based on the observation data of the atmospheric visibility and the relative humidity by using the correlation model in the step (S3). According to the method, the near-ground particle pollution level is estimated based on the meteorological data such as the atmospheric visibility and the relative humidity, the deficiency of a particle ground monitoring station can be effectively compensated, and the spatial range of the particle concentration monitoring can be expanded.

Description

technical field [0001] The invention relates to the technical field of atmospheric environment remote sensing monitoring, in particular to a method for estimating the concentration of inhalable particulate matter (PM10) near the ground based on surface meteorological observation data. Background technique [0002] As a major air pollutant, the impact of aerosols on public health has been recognized as a direct threat to human survival and sustainable development. Among them, inhalable particulate matter PM10 (particles with an aerodynamic diameter of less than 10 μm) can reach the bronchial area of ​​the human body, particles with a particle size of less than 5 μm can reach the alveolar area, and some smaller particles can even enter the human blood circulation system through capillaries. Great harm to the heart and cardiovascular system. According to the 2006 Bulletin on the State of the Environment in China, among the 557 cities monitored in my country, 43.4% of them fail...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 王子峰陈良富陶金花陶明辉苏林王中挺邹明敏
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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