Results 81 to 90 of about 751 (246)

The relationship between directional area scattering factor and foliage clumping based on DSCOVR EPIC data over Australian TERN sites

Frontiers in Remote Sensing
The Directional Area Scattering Factor (DASF) quantifies the fraction of visible canopy leaf area in a given direction and has demonstrated utility in characterizing vegetation structure. While traditionally applied to dense canopies under the assumption
Jan Pisek, Catherine Akinyi Odera, Angela Erb, Alexander Marshak, Yuri Knyazikhin   +4 more
doaj   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

The Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

A spectral–structural characterization of European temperate, hemiboreal, and boreal forests [PDF]

Earth System Science Data
Radiative transfer models of vegetation play a crucial role in the development of remote sensing methods by providing a theoretical framework to explain how electromagnetic radiation interacts with vegetation in different spectral regions.
M. Rautiainen, A. Hovi, D. Schraik, D. Schraik, J. Hanuš, P. Lukeš, Z. Lhotáková, L. Homolová   +7 more
doaj   +1 more source

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

The Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis, Keila Xavier Magalhães, Thiago Nilton A. Pereira, Janice Muriel‐Cunha, Alberto Akama   +4 more
wiley   +1 more source

An Illumination Invariant Maize Canopy Structure Parameters Analysis Method Based on Hemispherical Photography

, 2017
International audienceHemispherical photography (HP) has already proven to be a powerful indirect method for measuring various components of canopy structure.
Wang, Chuanyu, Guo, Xinyu, Du, Jianjun
core   +1 more source

Accuracy assessment of LAI, PAI and FCOVER from Sentinel-2 and GEDI for monitoring forests and their disturbance in Central Germany

European Journal of Remote Sensing
Forest monitoring benefits from biophysical parameters such as Leaf Area Index (LAI), Plant Area Index (PAI) and fractional vegetation cover (FCOVER) and can be obtained from optical and LiDAR remote sensing, such as Sentinel-2 (S2) and the Global ...
Birgitta Putzenlechner, Felix Bevern, Philipp Koal, Simon Grieger, Martin Kappas, Tatjana Koukal, Markus Löw, Federico Filipponi   +7 more
doaj   +1 more source

Estimating Snow Depth and Leaf Area Index Based on UAV Digital Photogrammetry

Sensors, 2019
This study presents a novel approach in the application of Unmanned Aerial Vehicle (UAV) imaging for the conjoint assessment of the snow depth and winter leaf area index (LAI), a structural property of vegetation, affecting the snow accumulation and ...
Theodora Lendzioch, Jakub Langhammer, Michal Jenicek   +2 more
doaj   +1 more source

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

The Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund, Frederik P. Wolvaardt, Roger M. H. Smith, Jaganmoy Jodder, Julien Benoit   +4 more
wiley   +1 more source

Estimation of leaf area index through hemispherical photography and leaf collection in apple and cherry trees [PDF]

, 2005
16 p.To validate the use of hemispherical photography as a method of determining leaf area index (LAI), on apple and cherry trees, an essay was carried out on 2 orchards in the VII Region, Chile, during 2002-2004 seasons. For apples, cultivars Royal Gala,
Lepe Martínez, Valeria, Moggia Lucchini, Claudia (Prof. Guía), Yuri Salomón, José Antonio (Prof. Guía)   +2 more
core  

Evaluation and correction of optically derived leaf area index in different temperate forests

iForest - Biogeosciences and Forestry, 2016
In recent years optical techniques for rapid LAI measurements have been developed, but few studies have been performed to evaluate the accuracy of optical estimation of LAI in mixed deciduous-evergreen forest stands.
Liu Z, Jin G, Zhou M
doaj   +1 more source