Screening method based on geographical detection and pca for key influencing factors of PM2.5 concentration distribution
A technology of influencing factors and concentration distribution, applied in the field of air pollution research, can solve problems such as lack of analysis methods, and achieve the effect of ensuring accuracy and eliminating multicollinearity
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[0033] The present invention will be further described below in conjunction with accompanying drawing:
[0034] Such as figure 1 As shown, it is a flow chart of the present invention based on geographic detection and PCA for the key influencing factor screening method of PM2.5 concentration distribution.
[0035] Based on geographic detection and PCA of the present invention, the key influencing factor screening method of PM2.5 concentration distribution comprises the steps:
[0036] S1. Obtain the locations of PM2.5 monitoring stations in the area to be studied, and establish several buffer zones.
[0037] Specifically, the buffer zone is a number of areas with a set size centered on the location of the PM2.5 monitoring station. The buffer zone is set to reflect the scale effect of the influence factor on the PM2.5 concentration distribution.
[0038] S2. Acquiring and discretizing the impact factor data in the area to be studied.
[0039] Impact factor data includes meteo...
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