中南大学学报（自然科学版）2023，Vol.54Issue(11)：4380-4390,11.DOI:10.11817/j.issn.1672-7207.2023.11.016
星载光子计数激光雷达数据森林高度及林下地形反演研究进展
Research progress on retrieving forest canopy height and sub-canopy topography from spaceborne photon-counting LiDAR data
摘要
Abstract
Forest height is an important parameter to measure forest biomass and carbon sink of the forest ecosystem.The topography under the forest(sub-canopy topography)is a strategic information resource supporting national infrastructure construction and disaster monitoring.The new generation space-borne lidar ICESat-2/ATLAS adopts a multi-beam micro-pulse photon counting technology for the first time,with a repetition frequency of 10 kHz to the ground.Compared with ICESat-1/GLAS,ICESat-2/ATLAS has a higher spatial sampling rate and insensitivity to slope and is currently important data for inverting the forest canopy height of forest ecosystems and sub-canopy topography.Some main indicators of ICESat-2/ATLAS were introduced and the influence of various errors on ATL08 products were summarized.The applicability of various photon point cloud filtering methods sub-canopy topography inversion and forest canopy height inversion were analyzed.The research progress and application prospects on photon point cloud filtering,sub-canopy topography inversion,and forest canopy height retrieval were put forward.关键词
星载光子计数激光雷达ICESat-2/光子点云滤波/林下地形/森林高度/研究进展Key words
space borne photon-countiong LiDAR ICESat-2/photon cloud filtering/sub-canopy topography/forest height/research progress分类
天文与地球科学引用本文复制引用
李毅,朱建军,付海强,高士娟,吴可夫..星载光子计数激光雷达数据森林高度及林下地形反演研究进展[J].中南大学学报（自然科学版）,2023,54(11):4380-4390,11.基金项目
国家自然科学基金资助项目(41904004,42030112,62207032) （41904004,42030112,62207032）
中南大学中央高校基础科研基金资助项目(506021729)(Projects(41904004,42030112,62207032)supported by the National Natural Science Foundation of China （506021729）
Project(506021729)supported by the Fundamental Research Funds for the Central Universities of Central South University) （506021729）
