Results 41 to 50 of about 1,205,740 (288)

Mapping the Forest Canopy Height in Northern China by Synergizing ICESat-2 with Sentinel-2 Using a Stacking Algorithm

Remote Sensing, 2021
The forest canopy height (FCH) plays a critical role in forest quality evaluation and resource management. The accurate and rapid estimation and mapping of the regional forest canopy height is crucial for understanding vegetation growth processes and the
Fugen Jiang, F. Zhao, Kaisen Ma, Dongsheng Li, Hua Sun   +4 more
semanticscholar   +1 more source

Tree Death Not Resulting in Gap Creation: An Investigation of Canopy Dynamics of Northern Temperate Deciduous Forests

Remote Sensing, 2018
Several decades of research have shown that canopy gaps drive tree renewal processes in the temperate deciduous forest biome. In the literature, canopy gaps are usually defined as canopy openings that are created by partial or total tree death of one or ...
Jean-Francois Senécal, Frédérik Doyon, Christian Messier   +2 more
doaj   +1 more source

Image to Image Deep Learning for Enhanced Vegetation Height Modeling in Texas

Remote Sensing, 2023
Vegetation canopy height mapping is vital for forest monitoring. However, the high cost and inefficiency of manual tree measurements, coupled with the irregular and limited local-scale acquisition of airborne LiDAR data, continue to impede its widespread
Lonesome Malambo, Sorin Popescu
doaj   +1 more source

Influence of Agisoft Metashape Parameters on UAS Structure from Motion Individual Tree Detection from Canopy Height Models

, 2021
Applications of unmanned aerial systems for forest monitoring are increasing and drive a need to understand how image processing workflows impact end-user products’ accuracy from tree detection methods. Increasing image overlap and making acquisitions at
W. Tinkham, Neal C. Swayze
semanticscholar   +1 more source

Canopy Height Mapping by Sentinel 1 and 2 Satellite Images, Airborne LiDAR Data, and Machine Learning

Remote Sensing, 2022
Continuous mapping of vegetation height is critical for many forestry applications, such as planning vegetation management in power transmission line right-of-way.
C. T. Almeida, J. Gerente, Jamerson Rodrigo dos Prazeres Campos, Francisco Caruso Gomes Junior, L. A. Providelo, Guilherme Marchiori, Xinjian Chen   +6 more
semanticscholar   +1 more source

Weak Environmental Controls of Tropical Forest Canopy Height in the Guiana Shield

Remote Sensing, 2016
Canopy height is a key variable in tropical forest functioning and for regional carbon inventories. We investigate the spatial structure of the canopy height of a tropical forest, its relationship with environmental physical covariates, and the ...
Youven Goulamoussène, Caroline Bedeau, Laurent Descroix, Vincent Deblauwe, Laurent Linguet, Bruno Hérault   +5 more
doaj   +1 more source

Systematic Evaluation of Multi-Resolution ICESat-2 Canopy Height Data: A Case Study of the Taranaki Region

Remote Sensing, 2023
Forest canopy height data are essential to assessing forest biomass and carbon storage, and they can be efficiently retrieved using the Advanced Terrain Laser Altimetry System (ATLAS) onboard ICESat-2. However, due to the sparse and discrete distribution
Feng Chen, Xuqing Zhang, Longyu Wang, Bing Du, Songya Dang, Linwei Wang   +5 more
doaj   +1 more source

Elevation and Distribution of Freshwater and Sewage Canals Regulate Canopy Structure and Differentiate Hurricane Damages to a Basin Mangrove Forest

Remote Sensing, 2021
The coastal mangrove forest bears important ecosystem functions and services, including the protection of shorelines and coastal communities. While coastal mangroves often suffer severe damage during storms, understanding the vulnerability and resistance
Qiong Gao, Mei Yu
doaj   +1 more source

A Comparison of Machine Learning and Geostatistical Approaches for Mapping Forest Canopy Height over the Southeastern US Using ICESat-2

Remote Sensing, 2022
The availability of canopy height information in the Ice, Cloud, and Land Elevation Satellite-2’s (ICESat-2’s) land and vegetation product, or ATL08, presents opportunities for developing full-coverage products over broad spatial scales. The primary goal
Kasip Tiwari, Lana L. Narine
semanticscholar   +1 more source

Modeling Aboveground Biomass in Hulunber Grassland Ecosystem by Using Unmanned Aerial Vehicle Discrete Lidar

Sensors, 2017
Accurate canopy structure datasets, including canopy height and fractional cover, are required to monitor aboveground biomass as well as to provide validation data for satellite remote sensing products.
Dongliang Wang, Xiaoping Xin, Quanqin Shao, Matthew Brolly, Zhiliang Zhu, Jin Chen   +5 more
doaj   +1 more source