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- W2365265528 abstract "【Objective】 In view of the scale effect problem resulted from the slope extraction based on low resolution Digital Elevation Model(DEM),this paper introduced a method which can rationally re-scale the low resolution slopes.【Method】 The fractal property of the topography and the theory of variogram demonstrate that slope is a function of the spatial resolution and the fractal dimension of a DEM,and by re-scaling the slopes we obtained a low resolution DEM based on the model experiments in Xiannangou Basin,and evaluated the accuracy of the re-scaled slope.【Result】 This paper concludes that within 0.2-1.0 times original resolution slope range,the re-scaling results of 100 m,50 m and 25 m resolution slope are similar to the slopes based on high resolution DEMs,in both slope value and slope spatial distribution,and the best re-scaling slope extent is 0.2-0.25 times of original resolution slope.【Conclusion】 It is shown that the method provides theoretical support for slope scale problems,and has a significant meaning in perfecting slope transform methods." @default.
- W2365265528 created "2016-06-24" @default.
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- W2365265528 date "2011-01-01" @default.
- W2365265528 modified "2023-09-23" @default.
- W2365265528 title "Research on method of re-scaling coarser resolution slope based on fractal analysis approach" @default.
- W2365265528 hasPublicationYear "2011" @default.
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