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Testing the accuracy of lidar forest measurement replications in operational settings.

机译:在操作环境中测试激光雷达森林测量重复的准确性。

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摘要

The repeatability of stand measurements derived from LiDAR data was tested in east-central Mississippi. Data collected from LiDAR missions and from ground plots were analyzed to estimate stand parameters. Two independent LiDAR missions were flown in approximate orthogonal directions. Field plots were generated where the missions overlapped, and tree data were taken in these plots. LiDAR data found 86-100% of mature pine trees, 64-81% of immature pine trees, and 63-72% of mature hardwood trees. Immature and mature pine tree heights measured from LiDAR were found to be significantly different (alpha=0.05) than field measured heights. Individual tree volumes and plot volume for mature pines were precisely predicted in both flight directions. The results of this study showed that LiDAR repeatability in mature pines can be accurately achieved, while immature pine and hardwood plots were unable to match the repeatability of the mature pine plots.
机译:在密西西比州中东部测试了根据LiDAR数据得出的林分测量值的可重复性。分析了从LiDAR任务和地面收集的数据,以评估展位参数。在近似正交的方向上执行了两次独立的LiDAR任务。在任务重叠的地方生成现场图,并在这些图中获取树数据。 LiDAR数据发现86-100%的成熟松树,64-81%的未成熟松树和63-72%的成熟硬木树。发现从LiDAR测量的未成熟和成熟的松树高度与现场测量的高度显着不同(alpha = 0.05)。在两个飞行方向上都精确预测了成熟松树的单个树木体积和积积体积。这项研究的结果表明,LiDAR在成熟松树中的可重复性可以准确地实现,而未成熟的松木和硬木地块无法匹配成熟松木地块的可重复性。

著录项

  • 作者

    Arnold, Theresa Faye.;

  • 作者单位

    Mississippi State University.;

  • 授予单位 Mississippi State University.;
  • 学科 Agriculture Forestry and Wildlife.;Remote Sensing.
  • 学位 M.S.
  • 年度 2009
  • 页码 69 p.
  • 总页数 69
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 森林生物学;遥感技术;
  • 关键词

  • 入库时间 2022-08-17 11:37:38

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