Results 31 to 40 of about 2,238,427 (150)

A sensitivity study of daytime net radiation during snowmelt to forest canopy and atmospheric conditions [PDF]

, 2004
This study investigates the dependence of net radiation at snow surfaces under forest canopies on the overlying canopy density. The daily sum of positive values of net radiation is used as an index of the snowmelt rate.
Pomeroy, J, Ek, M.B., Creutin, Jean-Dominique, Herve Andrieu, Jean-Dominique Creutin, Berne, Alexis, Essery, R. L. H.; id_orcid, Creutin, J.D., Sicart, J. E., Essery, R ; id_orcid, Andrieu, H., Delrieu, Guy, Link, T., Noone, D, Hardy, J., John Pomeroy, McGuffie, K, Irannejad, P, Richard Essery, Berne, A.D., Delrieu, G., Andrieu, Herve, Marks, D., Henderson-Sellers, A, Holtslag, A.A.M., Alexis Berne, Guy Delrieu, Pomeroy, J. W.   +27 more
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Elevation and Distribution of Freshwater and Sewage Canals Regulate Canopy Structure and Differentiate Hurricane Damages to a Basin Mangrove Forest

Remote Sensing, 2021
The coastal mangrove forest bears important ecosystem functions and services, including the protection of shorelines and coastal communities. While coastal mangroves often suffer severe damage during storms, understanding the vulnerability and resistance
Qiong Gao, Mei Yu
doaj   +1 more source

Canopy structural modeling using object-oriented image classification and laser scanning [PDF]

, 2008
A terrestrial laser scanning (TLS) experiment was carried out in the EAGLE 2006 campaign to characterize and model the canopy structure of the Speulderbos forest. Semi-variogram analysis was used to describe spatial variability of the surface.
Vekerdy, Zoltán, Dost, R., Timmermans, J., Laake, P. van   +3 more
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Quantifying mangrove canopy regrowth and recovery after Hurricane Irma with large-scale repeat airborne lidar in the Florida Everglades

International Journal of Applied Earth Observations and Geoinformation, 2022
Hurricane Irma caused significant damages to mangrove forested wetlands in south Florida, including defoliation, tree snapping, and uprooting. Previous studies have used optical satellite imagery to estimate large-scale forest disturbance and resilience ...
Lin Xiong, David Lagomasino, Sean P. Charles, Edward Castañeda-Moya, Bruce D. Cook, Jed Redwine, Lola Fatoyinbo   +6 more
doaj   +1 more source

Estimation of 3D vegetation structure from waveform and discrete return airborne laser scanning data [PDF]

, 2012
This study presents and compares new methods to describe the 3D canopy structure with Airborne Laser Scanning (ALS) waveform data as well as ALS point data.
Olofsson, Kenneth,, Lindberg, Eva,, Sveriges lantbruksuniversitet., Olsson, Håkan,, Kenneth Olofsson, Holmgren, Johan,, Håkan Olsson, Johan Holmgren, Olofsson, Kenneth, Lindberg, Eva, Holmgren, Johan, Eva Lindberg, Olsson, Håkan   +12 more
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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

On the Estimation of Forest Vertical Structure From Multibaseline Polarimetric SAR Data [PDF]

, 2012
Forest characterization and biomass estimation by means of remote sensing systems are nowadays “hot topics” within the remote sensing community, given their importance in the terrestrial carbon budget. In fact, forest vertical structure is a key variable
Pardini, Matteo, S.-K. Lee, A. Torano Caicoya, Torano Caicoya, Astor, Lee, Seung-Kuk, I. Hajnsek, Hajnsek, Irena, M. Pardini, F. Kugler, Kugler, Florian, Papathanassiou, Konstantinos, K. Papathanassiou   +11 more
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Uncertainty analysis for forest height inversion using L / P band PolInSAR datasets and RVoG model over kryclan forest site

International Journal of Applied Earth Observations and Geoinformation
Forest height, as a measure of the quantity and quality of forest resources, plays a significant role in the study of the ecological functions performed by forests.
Han Zhao, Tingwei Zhang, Yongjie Ji, Wangfei Zhang   +3 more
doaj   +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

Species-specific forest variable estimation using non-parametric modeling of multi-spectral photogrammetric point cloud data [PDF]

, 2012
The recent development in software for automatic photogrammetric processing of multispectral aerial imagery, and the growing nation-wide availability of Digital Elevation Model (DEM) data, are about to revolutionize data capture for forest management ...
Fransson, Johan E.S., Bohlin, Jonas, Wallerman, Jörgen, Olsson, Håkan   +3 more
core   +1 more source