Repositorio UFRO · Omeka S

A Simulation Study Using Terrestrial LiDAR Point Cloud Data to Quantify Spectral Variability of a Broad-Leaved Forest Canopy

Primer Autor	Cifuentes, Renato
Co-autores	Van der Zande, Dimitry#Salas-Eljatib, Christian#Farifteh, Jamshid#Coppin, Pol
Título	A Simulation Study Using Terrestrial LiDAR Point Cloud Data to Quantify Spectral Variability of a Broad-Leaved Forest Canopy
Editorial	MDPI
Revista	SENSORS
Lenguaje	en
Resumen	In this analysis, a method for construction of forest canopy three-dimensional (3D) models from terrestrial LiDAR was used for assessing the influence of structural changes on reflectance for an even-aged forest in Belgium. The necessary data were extracted by the developed method, as well as it was registered the adjacent point-clouds, and the canopy elements were classified. Based on a voxelized approach, leaf area index (LAI) and the vertical distribution of leaf area density (LAD) of the forest canopy were derived. Canopy-radiation interactions were simulated in a ray tracing environment, giving suitable illumination properties and optical attributes of the different canopy elements. Canopy structure was modified in terms of LAI and LAD for hyperspectral measurements. It was found that the effect of a 10% increase in LAI on NIR reflectance can be equal to change caused by translating 50% of leaf area from top to lower layers. As presented, changes in structure did affect vegetation indices associated with LAI and chlorophyll content. Overall, the work demonstrated the ability of terrestrial LiDAR for detailed canopy assessments and revealed the high complexity of the relationship between vertical LAD and reflectance.
Tipo de Recurso	Artículo original
Description	This research was funded by Federaal Wetenschapsbeleid (BELSPO) project HYPERFOREST SR/00/134. The APC was funded by Universidad Mayor. Esta investigación fue financiada por el proyecto HYPERFOREST SR/00/134 de Federaal Wetenschapsbeleid (BELSPO). La APC fue financiada por la Universidad Mayor.
doi	10.3390/s18103357
Formato Recurso	pdf
Palabras Claves	canopy structure# leaf area density# leaf area index# ray tracing# PBRT# vegetation index
Ubicación del archivo	http://dx.doi.org/10.3390/s18103357
Categoría OCDE	Chemistry, Analytical# Engineering, Electrical & Electronic# Instruments & Instrumentation
Materias	estructura de dosel# densidad de área foliar# índice de área foliar# trazado de rayos# PBRT# índice de vegetación
Disciplinas de la OCDE	Silvicultura Ecología Óptica
Versión del recurso (Recomendado-único)	version publicada
Tipo de ruta	dorada verde
Access Rights	acceso abierto
Derechos de acceso	acceso abierto
Id de Web of Science	WOS:000448661500185
Título de la cita (Recomendado-único)	A Simulation Study Using Terrestrial LiDAR Point Cloud Data to Quantify Spectral Variability of a Broad-Leaved Forest Canopy
Identificador del recurso (Mandatado-único)	Artículo original
Editorial	MDPI
Revista/Libro	SENSORS
Categoría WOS	Química Analítica# Ingeniería Eléctrica y Electrónica# Instrumentos e instrumentación
Idioma	en
Referencia del Financiador (Mandatado si es aplicable-repetible)	Federaal Wetenschapsbeleid HYPERFOREST SR/00/134 BELSPO HYPERFOREST SR/00/134 Universidad Mayor
Descripción	This research was funded by Federaal Wetenschapsbeleid (BELSPO) project HYPERFOREST SR/00/134. The APC was funded by Universidad Mayor.
Formato	pdf
License	CC BY
Página de inicio (Recomendado-único)	691
Página final (Recomendado-único)	702