Methodology of Dynamic Monitoring Gully Erosion Process Using 3D Laser Scanning Technology

ZHANG Jiao; ZHENG Fen-li; WEN Lei-lei; YU Fang-yuan; AN Juan; LI Gui-fang

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Methodology of Dynamic Monitoring Gully Erosion Process Using 3D Laser Scanning Technology

- Methodology of Dynamic Monitoring Gully Erosion Process Using 3D Laser Scanning Technology
- Bulletin of Soiland Water Conservation Vol. 30, Issue 6, Pages: 89-94(2011)
- 作者机构：
  
  1. 西北农林科技大学资源环境学院，陕西杨陵,712100
  2. 中国科学院水利部水土保持研究所,黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西杨陵,712100
  3. 中国科学院研究生院,北京,100049
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHANG Jiao, ZHENG Fen-li, WEN Lei-lei, et al. Methodology of Dynamic Monitoring Gully Erosion Process Using 3D Laser Scanning Technology[J]. Bulletin of Soiland Water Conservation, 2011, 30(6): 89-94.
DOI：

ZHANG Jiao, ZHENG Fen-li, WEN Lei-lei, et al. Methodology of Dynamic Monitoring Gully Erosion Process Using 3D Laser Scanning Technology[J]. Bulletin of Soiland Water Conservation, 2011, 30(6): 89-94. DOI：

摘要

在介绍三维激光扫描技术基本原理的基础上

详述了应用三维激光扫描技术实现沟蚀发育过程动态监测的方法和流程

包括扫描测量前期准备、扫描测量、点云预处理、坐标转换、TIN及等高线的生成、侵蚀量的估算等。以沟蚀发育过程的模拟降雨试验为案例

介绍了应用三维激光扫描技术进行沟蚀发育过程动态监测的方法

包括实地数据采集、点云分析处理和建模等

并分析了本案例基于三维激光扫描技术估算侵蚀量的精度

其平均精度达到96.85%。建议在野外应用三维激光扫描技术动态监测沟蚀过程时结合GPS进行辅助测量。

Abstract

This paper introduced the basic principles of laser scanning technology(LIDAR)

and specified the method of application the LIDAR to dynamically monitor gully erosion processes

which included measuring preparation

scanning survey process

point cloud preprocessing

coordinate transformation

TINs generation and soil loss estimation.Taking the experimental study on the gully erosion processes by simulating rainfall as a study case

dynamic monitoring method of gully erosion process using LIDAR was described in detail

which comprised field data collection

point cloud analysis

and mesh modeling.Comparison of the measured soil loss and the estimated soil loss showed that LIDAR technology has high accuracy to monitor soil erosion

and the estimating accuracy reaches to 96.85%.It suggests that the LIDAR should be combined with GPS technology to monitor gully erosion in field experiment.

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