Comprehensive analysis method for spatial and temporal distribution of environment variables
A technology of environmental variables and spatial-temporal distribution, applied in instruments, data processing applications, calculations, etc., can solve the problems of lack of analysis methods and quantitative indicators, obstacles to the application and promotion of methods, and lack of other problems, and achieve the effect of improving the accuracy of spatio-temporal prediction
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[0060] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0061] The definition of space-time random field is as follows: Define space-time random field Z(p)={Z(s, t)|s∈S, t∈T}, where S∈R 2 , representing the space domain, usually S={s 1 ,s 2},s 1 ,s 2 Used to represent spatial geographic coordinates; T∈R, representing the time domain. For example, under the framework of the Kriging method, the cadmium content z(p i ), p i =(s i , t i ), i=1,...,n, if you want to predict the soil heavy metal cadmium at the spatio-temporal position p 0 =(s 0 , t 0 ) at the content value z(p 0 ). Here, suppose z(p i ) is a realization of the space-time random field Z(p).
[0062] Implementation of Step S1
[0063] Under the condition of stationary assumption (intrinsic assumption), the spatio-temporal empirical variogram of R(p)=R(s, t) of the residual part of spatio-temporal geographic attributes can be e...
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