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  • CN 62-1070/P
  • ISSN 1000-694X
  • Bimonthly 1981
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Three-dimensional Morphological Characteristics of Barchan Dunes Based on Photogrammetry with A Multi-rotor UAV

  • Qian Guangqiang ,
  • Yang Zhuanling ,
  • Dong Zhibao ,
  • Tian Min
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  • 1. Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China

Received date: 2018-12-03

  Revised date: 2019-01-07

  Online published: 2019-02-14

Abstract

Oblique photogrammetry based on UAV is a newly developed technique in recent years and it is a measurement means with high efficiency and precision, non-disturb, wide ranging. In this study, the 3-D morphological features of barchan dunes were measured by means of a multi-rotor UAV with accurate ground control points. The results indicate that the root mean square error is less than 18 mm which meets the criterion of large scale terrain measurement. The results measured by UAV show that there is a good relationship between 2D and 3D parameters of barchan dunes, and it is possible to calculate the 3D parameters based on 2D measurements according to such relations. Meanwhile, the profiles of barchan dunes can be accurately described with a non-linear function and thus our results provide some useful references for numerical dune models. Finally, the results showed in this study demonstrate that the 3D parameters measured by means of oblique photogrammetry can improve our understandings of morphodynamic processes of dunes significantly.

Cite this article

Qian Guangqiang , Yang Zhuanling , Dong Zhibao , Tian Min . Three-dimensional Morphological Characteristics of Barchan Dunes Based on Photogrammetry with A Multi-rotor UAV[J]. Journal of Desert Research, 2019 , 39(1) : 18 -25 . DOI: 10.7522/j.issn.1000-694X.2019.00006

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