Research note: cost-efficient estimates of Pinus radiata wood volumes using multitemporal LiDAR data

2021 ◽  
pp. 1-9
Author(s):  
S. Peters ◽  
J. Liu ◽  
D. Bruce ◽  
J. Li ◽  
A. Finn ◽  
...  
Keyword(s):  
Pinus Radiata ◽  
Research Note ◽  
Lidar Data ◽  
Cost Efficient

Modelling canopy fuel variables for Pinus radiata D. Don in NW Spain with low-density LiDAR data

2014 ◽  
Vol 23 (3) ◽  
pp. 350 ◽  
Author(s):  
Eduardo González-Ferreiro ◽  
Ulises Diéguez-Aranda ◽  
Felipe Crecente-Campo ◽  
Laura Barreiro-Fernández ◽  
David Miranda ◽  
...  
Keyword(s):  
Pinus Radiata ◽  
Airborne Lidar ◽  
Lidar Data ◽  
Low Density ◽  
Crown Fire ◽  
Fire Behaviour ◽  
Fuel Characteristics ◽  
Fire Initiation ◽  
Behaviour Simulation ◽  
Simulation Systems

Crown fire initiation and spread are key elements in gauging fire behaviour potential in conifer forests. Crown fire initiation and spread models implemented in widely used fire behaviour simulation systems such as FARSITE and FlamMap require accurate spatially explicit estimation of canopy fuel complex characteristics. In the present study, we evaluated the potential use of very low-density airborne LiDAR (light detection and ranging) data (0.5 first returns m–2) – which is freely available for most of the Spanish territory – to estimate canopy fuel characteristics in Pinus radiata D. Don stands in north-western Spain. Regression analysis indicated strong relationships (R2=0.82–0.98) between LiDAR-derived metrics and field-based fuel estimates for stand height, canopy fuel load, and average and effective canopy base height Average and effective canopy bulk density (R2=0.59–0.70) were estimated indirectly from a set of previously modelled forest variables. The LiDAR-based models developed can be used to elaborate geo-referenced raster files to describe fuel characteristics. These files can be generated periodically, whenever new freely available airborne LiDAR data are released by the Spanish National Plan of Aerial Orthophotography, and can be used as inputs in fire behaviour simulation systems.

scholarly journals Sub-Compartment Variation in Tree Height, Stem Diameter and Stocking in a Pinus radiata D. Don Plantation Examined Using Airborne LiDAR Data

2014 ◽  
Vol 6 (8) ◽  
pp. 7592-7609 ◽  
Author(s):  
Hanieh Saremi ◽  
Lalit Kumar ◽  
Christine Stone ◽  
Gavin Melville ◽  
Russell Turner
Keyword(s):  
Pinus Radiata ◽  
Tree Height ◽  
Airborne Lidar ◽  
Stem Diameter ◽  
Lidar Data ◽  
Airborne Lidar Data

Development of an automated individual tree detection model using point cloud LiDAR data for accurate tree counts in a Pinus radiata plantation

2016 ◽  
Vol 79 (2) ◽  
pp. 126-136 ◽  
Author(s):  
Amrit Kathuria ◽  
Russell Turner ◽  
Christine Stone ◽  
Joaqin Duque-Lazo ◽  
Ron West
Keyword(s):  
Pinus Radiata ◽  
Point Cloud ◽  
Lidar Data ◽  
Individual Tree ◽  
Detection Model ◽  
Tree Detection

scholarly journals Estimation of aerial biomass using discrete-wave LiDAR data in combination with different vegetation indices in plantations of Pinus radiata (D. DON), Región del Maule, Chile.

2014 ◽  
Vol 2 (3) ◽  
Author(s):  
Diego Valencia Delgado ◽  
Jaime Hernández Palma ◽  
Fabian Fassnacht ◽  
Lissette Cortés Serey ◽  
Javier Lopatin Fourcade ◽  
...  
Keyword(s):  
Pinus Radiata ◽  
Vegetation Indices ◽  
Lidar Data

Experiences With and Lessons Learned From Developing, Implementing, and Evaluating a Support Program for Older Hearing Aid Users and Their Communication Partners in the Hearing Aid Dispensing Setting

2020 ◽  
Vol 29 (3S) ◽  
pp. 638-647 ◽  
Author(s):  
Janine F. J. Meijerink ◽  
Marieke Pronk ◽  
Sophia E. Kramer
Keyword(s):  
Large Scale ◽  
Hearing Aid ◽  
Critical Discussion ◽  
Lessons Learned ◽  
Research Note ◽  
Support Program ◽  
Large Sample Size ◽  
Long Term Effects ◽  
Communication Program ◽  
Communication Partners

Purpose The SUpport PRogram (SUPR) study was carried out in the context of a private academic partnership and is the first study to evaluate the long-term effects of a communication program (SUPR) for older hearing aid users and their communication partners on a large scale in a hearing aid dispensing setting. The purpose of this research note is to reflect on the lessons that we learned during the different development, implementation, and evaluation phases of the SUPR project. Procedure This research note describes the procedures that were followed during the different phases of the SUPR project and provides a critical discussion to describe the strengths and weaknesses of the approach taken. Conclusion This research note might provide researchers and intervention developers with useful insights as to how aural rehabilitation interventions, such as the SUPR, can be developed by incorporating the needs of the different stakeholders, evaluated by using a robust research design (including a large sample size and a longer term follow-up assessment), and implemented widely by collaborating with a private partner (hearing aid dispensing practice chain).

RESEARCH NOTE Vapour-liquid equilibria of exponential-six fluids

1996 ◽  
Vol 87 (6) ◽  
pp. 1471-1476 ◽  
Author(s):  
FREDERICO W. TAVARES
Keyword(s):  
Research Note
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