Results 21 to 30 of about 385,906 (308)

REMOTE SENSING TECHNOLOGIES FOR LINEAR INFRASTRUCTURE MONITORING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Abstract. The need for a continuous evaluation of the state of preservation of civil infrastructures during their lifetime is increasingly requiring advanced monitoring technologies. The improvement of spatial and temporal resolution of the measurements is now one of the most significant achievement, especially for large infrastructures.
D(')Aranno, P.   +3 more
openaire   +4 more sources

Mapping forest and site quality of planted Chinese fir forest using sentinel images

open access: yesFrontiers in Plant Science, 2022
Normally, forest quality (FQ) and site quality (SQ) play an important role in evaluating actual and potential forest productivity. Traditionally, these assessment indices (FQ and SQ) are mainly based on forest parameters extracted from ground measurement
Chongjian Tang   +18 more
doaj   +1 more source

Analysis of the impact of land use on floating object in rivers at different spatial scales—the Chongqing section of the Three Gorges Reservoir area

open access: yesFrontiers in Ecology and Evolution, 2023
Floating object pollution in the Three Gorges Reservoir area (TGRA) is a serious environmental problem. It directly harms the safety of the reservoirs. Currently, relevant research has only focused on certain aspects, such as the salvage and treatment of
Sheng Ye   +9 more
doaj   +1 more source

How to measure wetland destruction and risk: Wetland damage index

open access: yesEcological Indicators, 2022
Wetlands are formed by the interaction between terrestrial and aquatic systems and are of substantial importance in the study of global environmental change.
Xiaojun Huang   +3 more
doaj   +1 more source

Remote monitoring of biodynamic activity using electric potential sensors [PDF]

open access: yes, 2008
Previous work in applying the electric potential sensor to the monitoring of body electrophysiological signals has shown that it is now possible to monitor these signals without needing to make any electrical contact with the body.
C J Harl   +8 more
core   +1 more source

THREE-DIMENSIONAL RECONSTRUCTION OF THE VIRTUAL PLANT BRANCHING STRUCTURE BASED ON TERRESTRIAL LIDAR TECHNOLOGIES AND L-SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
For the purpose of extracting productions of some specific branching plants effectively and realizing its 3D reconstruction, Terrestrial LiDAR data was used as extraction source of production, and a 3D reconstruction method based on Terrestrial LiDAR ...
Y. Gong   +5 more
doaj   +1 more source

Spatial Pattern and Dynamic Change of Vegetation Greenness From 2001 to 2020 in Tibet, China

open access: yesFrontiers in Plant Science, 2022
Due to the cold climate and dramatically undulating altitude, the identification of dynamic vegetation trends and main drivers is essential to maintain the ecological balance in Tibet.
Fugen Jiang   +11 more
doaj   +1 more source

Retrieval and spatiotemporal variation of total suspended matter concentration using a MODIS-derived hue angle in the coastal waters of Qinhuangdao, China

open access: yesFrontiers in Marine Science
The CIE hue angle has significant potential in marine ecology and environment monitoring using remote sensing methods. It is calculated from the remote sensing reflectance (Rrs) of all visible bands, which serves as a comprehensive indicator of seawater ...
Lin Wang   +6 more
doaj   +1 more source

Efficient Geometric Correction Workflow for Airborne Hyperspectral Images through DEM-Driven Correction Techniques [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Geometric correction, a pivotal step in the preprocessing of airborne remote sensing imagery, is critical for ensuring the accuracy of subsequent quantitative analyses.
J. Yu   +10 more
doaj   +1 more source

Multi-source remote sensing big data mining reveals cross-regional correlation between aquaculture and Enteromorpha disaster outbreaks

open access: yesGeo-spatial Information Science
Marine aquaculture is one of the most important marine resource utilization types, widely distributed in seashore areas. Because mass marine aquaculture development will lead to the eutrophication disaster of macroalgae blooms (green tide), it is ...
Jianchao Fan   +3 more
doaj   +1 more source

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