Results 111 to 120 of about 294,690 (247)

Point Density Evaluation of Airborne LiDAR Datasets

J. Univers. Comput. Sci., 2015
JUCS - Journal of Universal Computer Science Volume Nr.
Rupnik,Bojan, Mongus,Domen, Žalik,Borut
openaire   +4 more sources

Silicon Photonic Beam Steerer Based on Metalens Focal Plane Array

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
A silicon photonic beam steerer based on a metalens focal plane array (FPA) monolithically integrates the collimation lens on‐chip while enabling blind‐spot‐free continuous beam steering. Thermo‐optic prisms provide continuous fine‐tuning and more than double the number of resolvable points.
Chung‐Yu Hsu, Ping‐Yen Hsieh, Hsun‐Sung Chiu, Li‐Jun Tung, Chieh‐Chih Yu, Ko‐Chi Chen, Yu‐Heng Hong, Hao‐Chung Kuo, Chi‐Wai Chow, You‐Chia Chang   +9 more
wiley   +1 more source

Toward Consistent Canopy Characterization From Low‐Cost UAV Imagery

Ecology and Evolution, Volume 16, Issue 9, September 2026.
We show that UAV‐based crown segmentation can reliably characterize dominant canopy trees in a structurally complex tropical forest. Focusing on these key individuals improves the assessment of forest structure and supports ecological monitoring at multiple scales. ABSTRACT Monitoring tropical forest structure at landscape scale requires cost‐effective
Antoine Plumacker, Bhely Angoboy Ilondea, Nicolas Barbier, Thibauld Collet, Hugo de Lame, Pauline Depoortere, Alexia Favaro, Adeline Fayolle, Marjane Kaddouri, Carmel Mounziegou‐Mounziegou, Pierre Ploton, Zoé Rousseau, Edmond Saint Denis, Paul Tresson, Hadrien Tulet, Arthur Vander Linden, Jean‐François Bastin   +16 more
wiley   +1 more source

Long‐term trends in greenness in the alpine zone of northeastern North America from remote sensing

Ecosphere, Volume 17, Issue 9, September 2026.
Abstract Alpine zones above treeline in the Appalachian Mountains and adjacent ranges of northeastern North America support distinctive ecological communities that thrive where conditions are too harsh for trees to grow. These communities differ from alpine zones elsewhere on the continent and are a regionally important source of floristic biodiversity,
Jonathan W. Chipman, Jordon C. Tourville, Irene H. Ko   +2 more
wiley   +1 more source

Temporal Persistence of Vertebrate Airborne Environmental DNA in a Natural Open‐Air Setting

Environmental DNA, Volume 8, Issue 5, September‐October 2026.
Airborne detection of a single known DNA source under natural outdoor conditions ceased 3 days after source removal, indicating that airborne eDNA primarily reflects recent animal presence rather than a lasting trace. These findings offer key insights for optimizing field deployment of airborne eDNA sampling.
Gracie C. Kroos, Kristen Fernandes, Philip Seddon, Travis Ashcroft, Neil J. Gemmell   +4 more
wiley   +1 more source

Habitat characteristics along spring migration routes of elk, mule deer, and pronghorn in the southern San Juan Mountains

The Journal of Wildlife Management, Volume 90, Issue 7, September 2026.
We evaluated habitat characteristics of spring migration routes and stopover sites for adult female elk (Cervus canadensis), mule deer (Odocoileus hemionus), and pronghorn (Antilocapra americana) in the San Juan Mountains (2021–2022) and found species‐specific differences in vegetation structure, terrain, and proximity to land cover types relative to ...
Joanna R. Ennis, Nicole M. Tatman, Steven E. Sesnie, James W. Cain III   +3 more
wiley   +1 more source

Chemical observations of a polar vortex intrusion [PDF]

, 2006
An intrusion of vortex edge air into the interior of the Arctic polar vortex was observed on the 31 January 2005 flight of the NASA DC-8 aircraft. This intrusion was identified as anomalously high values of ozone by Airborne Raman Ozone, Temperature, and
Lait, L. R., Livesey, N., Waters, J., Kawa, S. R., Browell, E. V., Twigg, L., Douglass, A. R., Read, W., McGee, T. J., Froidevaux, L., Santee, M. L., Schoeberl, M. R., Pumphrey, H. C.   +12 more
core   +1 more source

Quantifying microhabitat selection of snowshoe hares using forest metrics from UAS‐based LiDAR

Wildlife Biology, Volume 2026, Issue 5, September 2026.
Identifying the spatial and temporal scale at which animals select resources is critical for predicting how populations respond to changes in the environment. The spatial distribution of fine‐scale resources (e.g. patches of dense vegetation) are often linked with critical life‐history requirements such as denning and feeding sites.
Alexej P. K. Sirén, Franklin Sullivan, Rachel Cliché, Jeremy Goetz, Leighlan S. Prout, Jillian Kilborn, Katelyn Courtot, Michael Palace   +7 more
wiley   +1 more source

Mapping and monitoring of vegetation using airborne laser scanning [PDF]

, 2014
In this thesis, the utility of airborne laser scanning (ALS) for monitoring vegetation of relevance for the environmental sector was investigated. The vegetation characteristics studied include measurements of biomass, biomass change and vegetation ...
Nyström, Mattias
core   +1 more source

Toward an Improved Understanding of the Antarctic Coastal Zone and Its Contribution to Future Global Sea Level

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract Understanding the coastal zone of the Antarctic Ice Sheet (AIS), where it interacts with the Southern Ocean and warmer air masses, is crucial for predicting Antarctica's influence on the global climate and sea level. This region has multiple tipping mechanisms that could trigger large, rapid, and potentially irreversible changes in the AIS ...
Kenichi Matsuoka, Geir Moholdt, Jennifer F. Arthur, Julien A. Bodart, Xiangbin Cui, Fausto Ferraccioli, René Forsberg, Vikram Goel, Tom A. Jordan, Felicity S. McCormack, Ruth Mottram, Hamish D. Pritchard, Calvin Shackleton, Kirsty J. Tinto, Fredrik Boberg, Marie G. P. Cavitte, Reinhard Drews, Pierre Dutrieux, Jörg Ebbing, Olaf Eisen, Hannes Eisermann, Alex S. Gardner, Chad A. Greene, Nicholas Holschuh, Stewart S. R. Jamieson, Byeong‐Hoon Kim, Naomi Krauzig, Bernd Kulessa, Carlton Leuschen, Jilu Li, Lu Li, Jonas Liebsch, Joseph A. MacGregor, Emma MacKie, Anirudha Mahagaonkar, Joséphine Maton, Mathieu Morlighem, Francisco Navarro, Peter D. Neff, Inès N. Otosaka, Frank Pattyn, Antonia Ruppel, Rebecca J. Sanderson, Hélène Seroussi, Andrew Shepherd, Matthew R. Siegfried, Thomas Slater, Arjen P. Stroeven, Michael Studinger, Thomas Teisberg, Ryan A. Venturelli, Jeremy P. Winberry, Chen Zhao, Lu An, Jonathan L. Bamber, Robin E. Bell, Robert G. Bingham, Johanna Brehmer‐Moltmann, Graeme Eagles, Jamin Greenbaum, Jorn Gronset, Won Sang Lee, Emmanuel Le Meur, Lenneke M. Jong, Katrin Lindbäck, Sven Lidström, Mareen Lösing, Masahiro Minowa, Mayuri Pandey, Yogesh Ray, Mirko Scheinert, Dustin M. Schroeder, Thorsten Seehaus, Kaian Shahateet, Daniel Steinhage, Xueyuan Tang, Drew Taylor, Hannah Verboncoeur, Junjun Yang, Duncan A. Young   +79 more
wiley   +1 more source