Zobrazeno 1 - 10
of 3 488
pro vyhledávání: '"Red-Edge"'
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 18, Pp 13-24 (2025)
The accurate mapping of Spartina alterniflora (S. alterniflora) invasion is crucial for controlling its spread and reducing severe ecological problems. Satellite images have been extensively employed for S. alterniflora invasion monitoring; however,
Externí odkaz:
https://doaj.org/article/462ea968aba247ef838ab5839aa55db7
Publikováno v:
International Journal of Digital Earth, Vol 17, Iss 1 (2024)
Accurate paddy rice mapping is crucial for ensuring food security and guiding agricultural production. Vegetation indices are extensively employed to map paddy rice. However, most traditional normalized indices tend to be oversaturated during periods
Externí odkaz:
https://doaj.org/article/d539cc995743458999c20a655bf5809f
Publikováno v:
Agricultural Water Management, Vol 303, Iss , Pp 109045- (2024)
Soil water content (SWC) is an essential index that reflects water conditions in the soil surface during drought, and changes in SWC are critical in guiding agricultural irrigation management. Remote sensing is a crucial means of monitoring SWC, and
Externí odkaz:
https://doaj.org/article/c4ea3c4d43584fe3a531e53248e36cfe
Autor:
Jiahui Chen, Hanqiu Xu
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 5621-5636 (2024)
The red-edge band is closely related to biochemical parameters that characterize the growth condition of green plants and is an important factor in monitoring vegetation health. Therefore, red-edge indices based on the red-edge band have been develop
Externí odkaz:
https://doaj.org/article/7fc6eb6fc773461598a857fb268bf5b9
Akademický článek
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Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 133, Iss , Pp 104100- (2024)
In this study, hyperspectral data of two geographically distant study areas in Germany were analyzed to find the most effective spectral wavelengths for red-edge-based vegetation indices to differentiate bark beetle-infested Norway spruce into three
Externí odkaz:
https://doaj.org/article/c279318642d84ef89e6b9ae7efffa58b
Publikováno v:
Revista Geográfica Acadêmica, Vol 18, Iss 1 (2024)
Os índices de vegetação (IVs) possuem como função realçar o sinal da vegetação e minimizar as variações na irradiância solar e os efeitos do substrato do dossel vegetal. As séries temporais de imagens de cobertura vegetal apresentam difer
Externí odkaz:
https://doaj.org/article/8e297751f663409f93a09dc3a4378fdc
Autor:
Jianwei Wei, Menghua Wang
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 131, Iss , Pp 103921- (2024)
This study exploits the potential of satellite remote sensing reflectance spectra (Rrs(λ)) for detecting ocean surface algal blooms. Three types of floating surface algae are examined: Sargassum, Ulva, and Trichodesmium. The satellite images are pro
Externí odkaz:
https://doaj.org/article/34121552ad8c498c81753c5d62c1ee23
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 5517-5526 (2024)
The leaf area index (LAI) is one of the most important biophysical parameters of vegetation canopy, which is of great significance for estimating the growth and yield of tea trees. In the present era, tea plantations are becoming increasingly densely
Externí odkaz:
https://doaj.org/article/dfce1e6e153e4d7ba6d0f8e599eddb29
Publikováno v:
Drones, Vol 8, Iss 11, p 633 (2024)
Precision agriculture (PA) utilizes spatial and temporal variability to improve the sustainability and efficiency of farming practices. This study used high-resolution imagery from UAS to evaluate maize yield variability across three fields in Ghana:
Externí odkaz:
https://doaj.org/article/0c1b11f243b54043961f493e9fe60318