A simple kriging method incorporating multiscale measurements in geochemical survey |
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Authors: | Changjiang Li Zhiming Lu Tuhua Ma Xingsheng Zhu |
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Institution: | 1. Zhejiang Information Center of Land and Resources, 310007, Hangzhou, People''s Republic of China;2. Hydrology and Geochemistry Group (EES-6), Los Alamos National Laboratory, Los Alamos, NM 87545, USA |
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Abstract: | In this study, we propose a kriging algorithm, multiscale kriging model, to incorporate geochemical data observed at multiscales (multiresolutions). We assume that there are a number of measurements at different scales, and that the target scale at which the parameter values are needed may be different from the measurement scales. Several synthetic examples and the vanadium geochemical data from 8402 stream sediment samples in Zhejiang Province, China, have been used to illustrate the method. These examples demonstrate that, by incorporating measurements from all scales, the estimated field is better than the field estimated using measurements from any individual scale. This method also allows us to estimate a parameter field at the scale that does not have any measurements. |
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Keywords: | Kriging Simple multiscale kriging Multiresolution data Geochemical survey |
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