Topographic Spatial Variation Analysis of Loess Shoulder Lines in the Loess Plateau of China Based on MF-DFAReportar como inadecuado


Topographic Spatial Variation Analysis of Loess Shoulder Lines in the Loess Plateau of China Based on MF-DFA


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1

Key Laboratory of Virtual Geographic Environment of Ministry of Education, Nanjing Normal University, Nanjing 210023, China

2

School of Environment Science, Nanjing Xiaozhuang University, Nanjing 211171, China

3

Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China





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Author to whom correspondence should be addressed.



Academic Editors: Josef Strobl and Wolfgang Kainz

Abstract The Loess Plateau in China is internationally known for its unique geographical features and has therefore been studied by many researchers. This research exploits the regional differences in the spatial morphological characteristics of Loess shoulder lines in different landform types as an important basis for geomorphological regionalization. In this study, we used ensemble empirical mode decomposition EEMD, multi-fractal detrended fluctuation analysis MF-DFA, and detrended cross-correlation analysis DCCA to analyze topographic data series extracted from shoulder lines. Loess shoulder-line land variations series data from the Suide, Ganquan, and Chunhua areas on the Loess Plateau were selected and a combination of the two above-mentioned methods was used to study land variations at these three sample sites. The results revealed differences in the topographic variations of the multi-fractal characteristics and the topographic spatial variation in the Loess shoulder line of the three sample sites. Furthermore, the extent to which the results were affected by noise and the analysis scale differed among the three areas. View Full-Text

Keywords: shoulder-line; topographic variations; digital elevation model DEM; multi-fractal detrended fluctuation analysis MF-DFA; detrended cross-correlation analysis DCCA; Loess Plateau shoulder-line; topographic variations; digital elevation model DEM; multi-fractal detrended fluctuation analysis MF-DFA; detrended cross-correlation analysis DCCA; Loess Plateau





Autor: Jianjun Cao 1,2,3, Jiaming Na 1,3, Jilong Li 1,3, Guoan Tang 1,3, Xuan Fang 1,2,3 and Liyang Xiong 1,3,*

Fuente: http://mdpi.com/



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