Results 31 to 40 of about 181,377 (255)

Estimating Forest Canopy Height Using MODIS BRDF Data Emphasizing Typical-Angle Reflectances

Remote Sensing, 2019
Forest-canopy height is an important parameter for the estimation of forest biomass and terrestrial carbon flux and climate-change research at regional and global scales.
Lei Cui, Ziti Jiao, Yadong Dong, Mei Sun, Xiaoning Zhang, Siyang Yin, Anxin Ding, Yaxuan Chang, Jing Guo, Rui Xie   +9 more
doaj   +1 more source

Estimates of Forest Canopy Height Using a Combination of ICESat-2/ATLAS Data and Stereo-Photogrammetry

Remote Sensing, 2020
Forest canopy height is an indispensable forest vertical structure parameter for understanding the carbon cycle and forest ecosystem services. A variety of studies based on spaceborne Lidar, such as ICESat, ICESat-2 and airborne Lidar, were conducted to ...
Xiaojuan Lin, Min Xu, Chunxiang Cao, Yongfeng Dang, Barjeece Bashir, Bo Xie, Zhibin Huang   +6 more
doaj   +1 more source

Deep learning-driven forest canopy height mapping in boreal regions through multi-source remote sensing fusion: Integrating Sentinel-1/2, PALSAR, and ICESat-2/LVIS data

International Journal of Applied Earth Observations and Geoinformation
Forest canopy height is a key indicator for estimating forest carbon sinks and managing vegetation growth. Existing methods for fusing optical and Light Detection and Ranging (LiDAR) data still have limitations in canopy height estimation for boreal ...
Chenxi Liu, Wei Gong, Shuo Shi, Tong Wang, Tao Xu, Zixi Shi, Jiayun Niu   +6 more
doaj   +1 more source

Development of forest structure and leaf area in secondary forests regenerating on abandoned pastures in Central Amazonia [PDF]

, 2005
The area of secondary forest (SF) regenerating from pastures is increasing in the Amazon basin; however, the return of forest and canopy structure following abandonment is not well understood. This study examined the development of leaf area index (LAI),
Aide, Brown, Davidson, Elisa V. Wandelli, Eltahir, Erick C. M. Fernandes, Ewel, Fearnside, Fearnside, Feldpausch, Fernandes, Finegan, Gehring, Gerwing, Gerwing, Guariguata, Hartemink, Hegarty, Honzák, Hölscher, Jipp, Jordan, Kammesheidt, Kauffman, Kennard, Lucas, McWilliam, Meir, Mesquita, Moran, Nelson, Nepstad, Norman, Putz, Restom, Ribeiro, Saldarriaga, Schnitzer, Serrão, Steininger, Susan J. Riha, Ted R. Feldpausch, Uhl, Uhl, Uhl, Uhl, Veen, Vidal, Vieira, Vieira, Williams, Williamson, Wirth, Wright, Zarin, Zarin   +55 more
core   +1 more source

Mapping Canopy Heights of Poplar Plantations in Plain Areas Using ZY3-02 Stereo and Multispectral Data

ISPRS International Journal of Geo-Information, 2019
Forest canopy height plays an important role in forest management and ecosystem modeling. There are a variety of techniques employed to map forest height using remote sensing data but it is still necessary to explore the use of new data and methods.
Mingbo Liu, Chunxiang Cao, Wei Chen, Xuejun Wang   +3 more
doaj   +1 more source

Unmanned aerial vehicle based tree canopy characteristics measurement for precision spray applications

Smart Agricultural Technology, 2023
The critical components for applying the correct amount of agrochemicals are fruit tree characteristics such as canopy height, canopy volume, and canopy coverage.
Md Sultan Mahmud, Long He, Paul Heinemann, Daeun Choi, Heping Zhu   +4 more
doaj   +1 more source

Attraction of Acorn-Infesting \u3ci\u3eCydia Latiferreana\u3c/i\u3e (Lepidoptera: Tortricidae) to Pheromone-Baited Traps [PDF]

, 2017
Males of acorn-infesting Cydia latiferreana are attracted to an equilibrium mixture of the four isomers of 8, 10-dodecadien-l-ol acetate, the virgin female-produced pheromone. Trap height relative to the height of trees in which traps are placed seems to
Galford, J. R, Peacock, J. W, Wright, S. L   +2 more
core   +2 more sources

Comparison of three global canopy height maps and their applicability to biodiversity modeling: Accuracy issues revealed

Ecosphere
Global mapping of forest height is an extremely important task for estimating habitat quality and modeling biodiversity. Recently, three global canopy height maps have been released, the global forest canopy height map (GFCH), the high‐resolution canopy ...
Vítězslav Moudrý, Lukáš Gábor, Suzanne Marselis, Petra Pracná, Vojtěch Barták, Jiří Prošek, Barbora Navrátilová, Jan Novotný, Markéta Potůčková, Kateřina Gdulová, Pablo Crespo‐Peremarch, Jan Komárek, Marco Malavasi, Duccio Rocchini, Luis A. Ruiz, Jesús Torralba, Michele Torresani, Roberto Cazzolla Gatti, Jan Wild   +18 more
doaj   +1 more source

Using ICESAT\u27s geoscience laser altimeter system to assess large scale forest disturbance caused by Hurricane Katrina [PDF]

, 2009
We assessed the use of GLAS data as a tool to quantify large-scale forest damage. GLAS data for the year prior to and following Hurricane Katrina were compared to wind speed, forest cover, and MODIS NPV maps to analyze senor sampling, and changes in mean
Dolan, Katelyn A
core   +1 more source

Boundary-layer flow within and above a forest canopy of variable density

, 2012
An analytical model is developed for flow within and above a forest canopy with a slowly varying canopy density. Results are compared with existing analytical models for flow over a surface with slowly varying roughness length, and also with numerical ...
Ross, AN
core   +1 more source