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NEON-SD:一个30米的结构多样性产品,来自NEON离散返回LiDAR点云

Jianmin Wang¹, Dennis H Choi¹, Elizabeth LaRue²

¹Department of Forestry and Natural Resources, Purdue University, West Lafayette, Indiana, USA.

Scientific data

|October 30, 2024

概括

我们使用LiDAR数据创建了一个新的结构多样性产品,以轻松测量生态系统的复杂性. 该产品有助于研究人员了解生态系统功能,并监测环境变化.

科学领域:

生态生态学生态生态学
遥感遥感遥感遥感
地理空间分析是什么

背景情况:

结构多样性 (SD) 对于生态系统功能至关重要,但从LiDAR数据中进行计算具有挑战性.
现有的方法需要高性能计算,并且由于数据和算法复杂性,可能导致不一致的指标.

研究的目的:

使用离散返回LiDAR数据开发一个可访问的结构多样性 (SD) 产品.
为生态研究和应用提供标准化的SD指标.

主要方法:

利用了NEON空中观测平台的离散返回LiDAR点云数据.
以30米分辨率计算SD指标 (高度,密度,开放度,复杂度),与Landsat网格保持一致.
整合了三个切断高度 (0.5米,2米,5米),以考虑不同的底层植被.

主要成果:

创建了一个全面的SD产品,涵盖了45个NEON陆地站点的211个站点年 (2013-2022).
该产品提供了生态系统结构的详细空间信息.
度量标准化并与现有的遥感网格保持一致,以实现更广泛的可用性.

结论:

开发的SD产品使生态系统结构复杂性的分析民主化.
允许各种应用,包括生态系统生产率估计和干扰监测.
促进一致和高效的生态研究,而不需要专门的计算资源.

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