Results 1 to 10 of about 181,258 (136)

Field-measured canopy height may not be as accurate and heritable as believed: evidence from advanced 3D sensing [PDF]

open access: yesPlant Methods, 2023
Highlights The effects of canopy height, leaf area index, and growth stage on the accurate monitoring of canopy height with different 3D sensors were systematically evaluated. Field-measured canopy height may not be as accurate as believed, especially in
Jingrong Zang   +9 more
doaj   +2 more sources

Correction of UAV LiDAR-derived grassland canopy height based on scan angle [PDF]

open access: yesFrontiers in Plant Science, 2023
Grassland canopy height is a crucial trait for indicating functional diversity or monitoring species diversity. Compared with traditional field sampling, light detection and ranging (LiDAR) provides new technology for mapping the regional grassland ...
Cong Xu   +19 more
doaj   +2 more sources

Research on Estimating Rice Canopy Height and LAI Based on LiDAR Data [PDF]

open access: yesSensors, 2023
Rice canopy height and density are directly usable crop phenotypic traits for the direct estimation of crop biomass. Therefore, it is crucial to rapidly and accurately estimate these phenotypic parameters.
Linlong Jing   +3 more
doaj   +2 more sources

Land-based crop phenotyping by image analysis: Accurate estimation of canopy height distributions using stereo images. [PDF]

open access: yesPLoS ONE, 2018
In this paper we report on an automated procedure to capture and characterize the detailed structure of a crop canopy by means of stereo imaging. We focus attention specifically on the detailed characteristic of canopy height distribution-canopy shoot ...
Jinhai Cai   +3 more
doaj   +2 more sources

A Framework for Improving Wall-to-Wall Canopy Height Mapping by Integrating GEDI LiDAR

open access: yesRemote Sensing, 2022
Spatially continuous canopy height is a vital input for modeling forest structures and functioning. The global ecosystem dynamics investigation (GEDI) waveform can penetrate a canopy to precisely find the ground and measure canopy height, but it is ...
Cangjiao Wang   +8 more
doaj   +1 more source

Evaluation and Comparison of ICESat-2 and GEDI Data for Terrain and Canopy Height Retrievals in Short-Stature Vegetation

open access: yesRemote Sensing, 2023
Two space-borne light detection and ranging (LiDAR) missions, Global Ecosystem Dynamics Investigation (GEDI) and Ice, Cloud, and land Elevation Satellite-2 (ICESat-2), have demonstrated high capabilities in extracting terrain and canopy heights in forest
Xiaoxiao Zhu   +5 more
doaj   +1 more source

Large-eddy simulations of surface roughness parameter sensitivity to canopy-structure characteristics [PDF]

open access: yesBiogeosciences, 2015
Surface roughness parameters, namely the roughness length and displacement height, are an integral input used to model surface fluxes. However, most models assume these parameters to be a fixed property of plant functional type and disregard the ...
K. D. Maurer   +3 more
doaj   +1 more source

Landsat-Scale Regional Forest Canopy Height Mapping Using ICESat-2 Along-Track Heights: Case Study of Eastern Texas

open access: yesRemote Sensing, 2022
Spaceborne profiling lidar missions such as the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) are collecting direct elevation measurements, supporting the retrieval of vegetation attributes such as canopy height that are crucial in forest carbon ...
Lonesome Malambo   +2 more
doaj   +1 more source

Elevation Regimes Modulated the Responses of Canopy Structure of Coastal Mangrove Forests to Hurricane Damage

open access: yesRemote Sensing, 2022
Mangrove forests have unique ecosystem functions and services, yet the coastal mangroves in tropics are often disturbed by tropical cyclones. Hurricane Maria swept Puerto Rico and nearby Caribbean islands in September 2017 and caused tremendous damage to
Qiong Gao, Mei Yu
doaj   +1 more source

Predicting the Forest Canopy Height from LiDAR and Multi-Sensor Data Using Machine Learning over India

open access: yesRemote Sensing, 2022
Forest canopy height estimates, at a regional scale, help understand the forest carbon storage, ecosystem processes, the development of forest management and the restoration policies to mitigate global climate change, etc.
Sujit M. Ghosh   +10 more
doaj   +1 more source

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