Results 51 to 60 of about 23,075 (290)

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

X-band Extinction in Boreal Forest: Estimation by Using E-SAR PolInSAR and HUTSCAT [PDF]

, 2007
In this paper we study the extinction coefficient of boreal forest by utilizing airborne E-SAR X-band POLInSAR and HUTSCAT X band profiling scatterometer measurements.
Praks, Jaan, Konstantinos P. Papathanassiou, Florian Kugler, Jaan Praks, Kugler, Florian, Papathanassiou, Konstantinos, Martti Hallikainen, Hallikainen, Martti   +7 more
core   +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

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

INVISTIGATION ON CANOPY HEIGHT AND DENSITY DIFFERENTIATIONS IN THE MANAGED AND UNMANAGED FOREST STANDS USING LIDAR DATA (CASE STUDY: SHASTKALATEH FOREST, GORGAN) [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Forest management plans are interesting to keep the forest stand natural composite and structure after silvicultural and management treatments. In order to investigate on stand differences made by management treatments, comparing of these stands with ...
Sh. Shataee, J. Mohammadi
doaj   +1 more source

Mapping Forest Canopy Height in Mountainous Areas Using ZiYuan-3 Stereo Images and Landsat Data [PDF]

, 2019
Forest canopy height is an important parameter for studying biodiversity and the carbon cycle. A variety of techniques for mapping forest height using remote sensing data have been successfully developed in recent years.
Mingbo Liu, Chunxiang Cao, Yongfeng Dang, Xiliang Ni   +3 more
core   +1 more source

An Improved Generalized Hierarchical Estimation Framework with Geostatistics for Mapping Forest Parameters and Its Uncertainty: A Case Study of Forest Canopy Height [PDF]

, 2022
Forest canopy height is an essential parameter in estimating forest aboveground biomass (AGB), growing stock volume (GSV), and carbon storage, and it can provide necessary information in forest management activities.
Zengyuan Li, Lei Zhao, Erxue Chen, Kunpeng Xu, Junpeng Zhao, Xiangyuan Ding   +5 more
core   +1 more source

Pine Forest Height Inversion Using Single-Pass X-Band Pol-InSAR Data [PDF]

, 2007
International audienceA sparse pine forest is investigated at X-band on a single-pass polarimetric synthetic aperture radar interferometry (PolInSAR) data set using HH and HV channels.
Dubois-Fernandez, Pascale C., Papathanassiou, Konstantinos Panagiotis, Garestier, Franck, Papathanassiou, Konstantinos, Dubois-Fernandez, Pascale   +4 more
core   +1 more source

An assessment of the use of airborne LiDAR for estimating growth of Sitka spruce (Picea sitchensis) plantation forestry at Kielder Forest, UK [PDF]

, 2007
A growing need exists for the collection of accurate and up-to-date information on forest growth rates for management purposes. Recent studies indicate that airborne laser scanning (ALS) offers a quicker and more cost-effective approach than the ...
Woodget, Amy Sara
core  

Taxonomic reassessment of fossil Sequoia and Protosequoia from the Upper Miocene of Central Honshu, Japan, with implications for leaf morphological variation in extant S. sempervirens

American Journal of Botany, EarlyView.
Abstract Premise Since its emergence in the Mesozoic, Sequoia (Cupressaceae) has been considered to possess conserved leaf morphology. However, recent studies have shown that the leaves of extant S. sempervirens become smaller, with a scale form, with increasing tree height.
Shun Ikeda, Arata Momohara
wiley   +1 more source