Abstract
The circular mountain structure can provide a wealth of information on analyzing active structures. In this paper, DEM and GF-2 images are integrated to analyze this unique terrain. We can find that the main ridge and valley line are annular distribution. In the main ridge line, the ridges presents leaf vein and valleys like branches. The hills are pit-shaped with a central peak. Within the circular belt between the main ridge and valley line, there is a unique radial distribution of alternating ridge and valley lines. The terrain is complex, presenting high in the north and low in the south, while they are like barriers and symmetrically distribute on the east and west. It looks like a collar as a whole. The results not only provide a theoretical basis for the research of circular structure but also enrich the methods of studying geology and geomorphology based on multi-source remote sensing technology.
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Data Availability
The DEM that support the findings of this study are openly available in the PALSAR sensor of ALOS (Advanced Land Observing Satellite) at https://search.asf.alaska.edu/#/. The remote sensing images with high spatial resolution (GF-2 images) that support the findings of this study are conditional available in Yunnan Applied Research Center for Earth Observation Data. The data are not publicly available due to their containing information that could compromise the privacy of Yunnan Applied Research Center for Earth Observation Data.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (NSFC) project, “Multi-scale Remote Sensing Detection and Analysis of Debris Flows in Dongchuan Xiaojiang.” [grant number is 41561083, 41861054]. Thanks for the field investigation work by many students from the “Yunnan Province University Engineering Research Center of Spatial Information Surveying and Mapping Technology Application in Highland Mountain Area” and “Yunnan Applied Research Center for Earth Observation Data.”
Funding
This work was supported by the National Natural Science Foundation of China (NSFC) project, “Multi-scale Remote Sensing Detection and Analysis of Debris Flows in Dongchuan Xiaojiang.” [grant number is 41561083, 41861054].
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Hu Lin wrote the manuscript, Gan Shu designed the framework of the research; Yuan Xiping and Yang Minglong have given many suggestions for improving and modifying this paper; Gao Sha, Bi Rui and Li Yan contributed to data processing and analysis. All the authors were involved in result analysis and discussion.
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Communicated by: H. Babaie
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Lin, H., Shu, G., Xiping, Y. et al. Analysis of geomorphologic features of the circular structure in the south of Lufeng Dinosaur Valley. Earth Sci Inform 15, 455–464 (2022). https://doi.org/10.1007/s12145-021-00751-x
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DOI: https://doi.org/10.1007/s12145-021-00751-x