Search Results - "Lau, Alvaro"

Comparing RIEGL RiCOPTER UAV LiDAR Derived Canopy Height and DBH with Terrestrial LiDAR by Brede, Benjamin, Lau, Alvaro, Bartholomeus, Harm M, Kooistra, Lammert

“…In recent years, LIght Detection And Ranging (LiDAR) and especially Terrestrial Laser Scanning (TLS) systems have shown the potential to revolutionise forest…”
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Data acquisition considerations for Terrestrial Laser Scanning of forest plots by Wilkes, Phil, Lau, Alvaro, Disney, Mathias, Calders, Kim, Burt, Andrew, Gonzalez de Tanago, Jose, Bartholomeus, Harm, Brede, Benjamin, Herold, Martin

“…The poor constraint of forest Above Ground Biomass (AGB) is responsible, in part, for large uncertainties in modelling future climate scenarios. Terrestrial…”
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New perspectives on the ecology of tree structure and tree communities through terrestrial laser scanning by Malhi, Yadvinder, Jackson, Tobias, Patrick Bentley, Lisa, Lau, Alvaro, Shenkin, Alexander, Herold, Martin, Calders, Kim, Bartholomeus, Harm, Disney, Mathias I.

“…Terrestrial laser scanning (TLS) opens up the possibility of describing the three-dimensional structures of trees in natural environments with unprecedented…”
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Tree Biomass Equations from Terrestrial LiDAR: A Case Study in Guyana by Alvaro Lau, Kim Calders, Harm Bartholomeus, Christopher Martius, Pasi Raumonen, Martin Herold, Matheus Vicari, Hansrajie Sukhdeo, Jeremy Singh, Rosa C. Goodman

“…Large uncertainties in tree and forest carbon estimates weaken national efforts to accurately estimate aboveground biomass (AGB) for their national monitoring,…”
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StrucNet: a global network for automated vegetation structure monitoring by Calders, Kim, Brede, Benjamin, Newnham, Glenn, Culvenor, Darius, Armston, John, Bartholomeus, Harm, Griebel, Anne, Hayward, Jodie, Junttila, Samuli, Lau, Alvaro, Levick, Shaun, Morrone, Rosalinda, Origo, Niall, Pfeifer, Marion, Verbesselt, Jan, Herold, Martin

“…Climate change and increasing human activities are impacting ecosystems and their biodiversity. Quantitative measurements of essential biodiversity variables…”
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Non-destructive tree volume estimation through quantitative structure modelling: Comparing UAV laser scanning with terrestrial LIDAR by Brede, Benjamin, Calders, Kim, Lau, Alvaro, Raumonen, Pasi, Bartholomeus, Harm M., Herold, Martin, Kooistra, Lammert

“…Above-Ground Biomass (AGB) product calibration and validation require ground reference plots at hectometric scales to match space-borne missions' resolution…”
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Understanding crown shyness from a 3-D perspective by van der Zee, Jens, Lau, Alvaro, Shenkin, Alexander

“…Abstract Background and Aims Crown shyness describes the phenomenon whereby tree crowns avoid growing into each other, producing a puzzle-like pattern of…”
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Quantifying branch architecture of tropical trees using terrestrial LiDAR and 3D modelling by Lau, Alvaro, Bentley, Lisa Patrick, Martius, Christopher, Shenkin, Alexander, Bartholomeus, Harm, Raumonen, Pasi, Malhi, Yadvinder, Jackson, Tobias, Herold, Martin

“…Key message A method using terrestrial laser scanning and 3D quantitative structure models opens up new possibilities to reconstruct tree architecture from…”
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Quantifying tropical forest structure through terrestrial and UAV laser scanning fusion in Australian rainforests by Terryn, Louise, Calders, Kim, Bartholomeus, Harm, Bartolo, Renée E., Brede, Benjamin, D'hont, Barbara, Disney, Mathias, Herold, Martin, Lau, Alvaro, Shenkin, Alexander, Whiteside, Timothy G., Wilkes, Phil, Verbeeck, Hans

“…Accurately quantifying tree and forest structure is important for monitoring and understanding terrestrial ecosystem functioning in a changing climate. The…”
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Estimating architecture-based metabolic scaling exponents of tropical trees using terrestrial LiDAR and 3D modelling by Lau, Alvaro, Martius, Christopher, Bartholomeus, Harm, Shenkin, Alexander, Jackson, Tobias, Malhi, Yadvinder, Herold, Martin, Bentley, Lisa Patrick

“…•Terrestrial laser scanning permits non-destructive tests of plant scaling models.•Tree 3D modelling generates data semi-automatically for plant scaling…”
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Estimation of above‐ground biomass of large tropical trees with terrestrial LiDAR by Gonzalez de Tanago, Jose, Lau, Alvaro, Bartholomeus, Harm, Herold, Martin, Avitabile, Valerio, Raumonen, Pasi, Martius, Christopher, Goodman, Rosa C., Disney, Mathias, Manuri, Solichin, Burt, Andrew, Calders, Kim, Kriticos, Darren

“…Tropical forest biomass is a crucial component of global carbon emission estimations. However, calibration and validation of such estimates require accurate…”
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Non-destructive estimation of individual tree biomass: Allometric models, terrestrial and UAV laser scanning by Brede, Benjamin, Terryn, Louise, Barbier, Nicolas, Bartholomeus, Harm M., Bartolo, Renée, Calders, Kim, Derroire, Géraldine, Krishna Moorthy, Sruthi M., Lau, Alvaro, Levick, Shaun R., Raumonen, Pasi, Verbeeck, Hans, Wang, Di, Whiteside, Tim, van der Zee, Jens, Herold, Martin

“…•Non-destructive individual tree AGB estimation based on TLS and UAV-LS data.•Analysis at 4 sites across 3 biomes totalling 871 trees.•Applying…”
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TomoSense: A unique 3D dataset over temperate forest combining multi-frequency mono- and bi-static tomographic SAR with terrestrial, UAV and airborne lidar, and in-situ forest census by Tebaldini, Stefano, d'Alessandro, Mauro Mariotti, Ulander, Lars M.H., Bennet, Patrik, Gustavsson, Anders, Coccia, Alex, Macedo, Karlus, Disney, Mathias, Wilkes, Phil, Spors, Hans-Joachim, Schumacher, Nico, Hanuš, Jan, Novotný, Jan, Brede, Benjamin, Bartholomeus, Harm, Lau, Alvaro, van der Zee, Jens, Herold, Martin, Schuettemeyer, Dirk, Scipal, Klaus

“…The TomoSense experiment was funded by the European Space Agency (ESA) to support research on remote sensing of forested areas by means of Synthetic Aperture…”
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Estimating forest above‐ground biomass with terrestrial laser scanning: Current status and future directions by Demol, Miro, Verbeeck, Hans, Gielen, Bert, Armston, John, Burt, Andrew, Disney, Mathias, Duncanson, Laura, Hackenberg, Jan, Kükenbrink, Daniel, Lau, Alvaro, Ploton, Pierre, Sewdien, Artie, Stovall, Atticus, Takoudjou, Stéphane Momo, Volkova, Liubov, Weston, Christopher, Wortel, Verginia, Calders, Kim

“…Improving the global monitoring of above‐ground biomass (AGB) is crucial for forest management to be effective in climate mitigation. In the last decade,…”
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New tree height allometries derived from terrestrial laser scanning reveal substantial discrepancies with forest inventory methods in tropical rainforests by Terryn, Louise, Calders, Kim, Meunier, Félicien, Bauters, Marijn, Boeckx, Pascal, Brede, Benjamin, Burt, Andrew, Chave, Jerome, Costa, Antonio Carlos Lola, D'hont, Barbara, Disney, Mathias, Jucker, Tommaso, Lau, Alvaro, Laurance, Susan G. W., Maeda, Eduardo Eiji, Meir, Patrick, Krishna Moorthy, Sruthi M., Nunes, Matheus Henrique, Shenkin, Alexander, Sibret, Thomas, Verhelst, Tom E., Wilkes, Phil, Verbeeck, Hans

“…Tree allometric models, essential for monitoring and predicting terrestrial carbon stocks, are traditionally built on global databases with forest inventory…”
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Understanding crown shyness from a 3D perspective by van der Zee, Jens, Lau, Alvaro, Shenkin, Alexander

“…Crown shyness describes the phenomenon in which tree crowns avoid growing into each other, producing a puzzle-like pattern of complementary tree crowns in the…”
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Tropical forest canopies and their relationships with climate and disturbance: results from a global dataset of consistent field-based measurements by Pfeifer, Marion, Gonsamo, Alemu, Woodgate, William, Cayuela, Luis, Marshall, Andrew R., Ledo, Alicia, Paine, Timothy C. E., Marchant, Rob, Burt, Andrew, Calders, Kim, Courtney-Mustaphi, Colin, Cuni-Sanchez, Aida, Deere, Nicolas J., Denu, Dereje, de Tanago, Jose Gonzalez, Hayward, Robin, Lau, Alvaro, Macía, Manuel J., Olivier, Pieter I., Pellikka, Petri, Seki, Hamidu, Shirima, Deo, Trevithick, Rebecca, Wedeux, Beatrice, Wheeler, Charlotte, Munishi, Pantaleo K. T., Martin, Thomas, Mustari, Abdul, Platts, Philip J.

“…Background Canopy structure, defined by leaf area index (LAI), fractional vegetation cover (FCover) and fraction of absorbed photosynthetically active…”
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A Shortest Path Based Tree Isolation Method for UAV LiDAR Data by Raumonen, Pasi, Brede, Benjamin, Lau, Alvaro, Bartholomeus, Harm

“…A description and test results for a new method for automatically isolating individual trees from UAV LiDAR point clouds is presented. The isolation method is…”
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Quantifying Tropical Forest Stand Structure Through Terrestrial and UAV Laser Scanning Fusion by Terryn, Louise, Calders, Kim, Bartholomeus, Harm, Bartolo, Renee E., Brede, Benjamin, D'Hont, Barbara, Disney, Mathias, Herold, Martin, Lau, Alvaro, Shenkin, Alexander, Whiteside, Timothy G., Wilkes, Phil, Verbeeck, Hans

“…Obtaining accurate and detailed structural forest information has been revolutionized with the emergence of laser scanning. The sampling limitations and…”
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Assessing Biomass and Architecture of Tropical Trees with Terrestrial Laser Scanning by Sarmiento, Alvaro Ivan Lau

“…Over the last two decades, terrestrial light detection and ranging (LiDAR), also known as terrestrial laser scanning (TLS) has become a valuable tool in…”
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