Results 1 to 10 of about 406,860 (186)

Crop Classification Based on Red Edge Features Analysis of GF-6 WFV Data [PDF]

open access: yesSensors, 2021
A red edge band is a sensitive spectral band of crops, which helps to improve the accuracy of crop classification. In view of the characteristics of GF-6 WFV data with multiple red edge bands, this paper took Hengshui City, Hebei Province, China, as the ...
Yupeng Kang   +4 more
doaj   +4 more sources

DAVs: Red Edge and Outbursts [PDF]

open access: yesThe Astrophysical Journal, 2018
As established by photometric surveys, white dwarfs with hydrogen atmospheres and surface gravity, log(g) ≈ 8.0 pulsate as they cool across the temperature range of 12,500 K ≳ T_(eff) ≳ 10,800 K.
Goldreich, Peter, Luan, Jing
core   +5 more sources

The Red Edge: Bilin-Binding Photoreceptors as Optogenetic Tools and Fluorescence Reporters. [PDF]

open access: yesChem Rev, 2021
This review adds the bilin-binding phytochromes to the Chemical Reviews thematic issue "Optogenetics and Photopharmacology". The work is structured into two parts. We first outline the photochemistry of the covalently bound tetrapyrrole chromophore and summarize relevant spectroscopic, kinetic, biochemical, and physiological properties of the different
Tang K   +3 more
europepmc   +4 more sources

Rice Mapping and Growth Monitoring Based on Time Series GF-6 Images and Red-Edge Bands

open access: yesRemote Sensing, 2021
Accurate rice mapping and growth monitoring are of great significance for ensuring food security and agricultural sustainable development. Remote sensing (RS), as an efficient observation technology, is expected to be useful for rice mapping and growth ...
Xueqin Jiang   +4 more
doaj   +3 more sources

Understanding the temporal dimension of the red-edge spectral region for forest decline detection using high-resolution hyperspectral and Sentinel-2a imagery. [PDF]

open access: yesISPRS J Photogramm Remote Sens, 2018
The operational monitoring of forest decline requires the development of remote sensing methods that are sensitive to the spatiotemporal variations of pigment degradation and canopy defoliation.
Zarco-Tejada PJ   +3 more
europepmc   +2 more sources

Red-edge position of habitable exoplanets around M-dwarfs. [PDF]

open access: yesSci Rep, 2017
AbstractOne of the possible signs of life on distant habitable exoplanets is the red-edge, which is a rise in the reflectivity of planets between visible and near-infrared (NIR) wavelengths. Previous studies suggested the possibility that the red-edge position for habitable exoplanets around M-dwarfs may be shifted to a longer wavelength than that for ...
Takizawa K   +4 more
europepmc   +6 more sources

The Impact of NPV on the Spectral Parameters in the Yellow-Edge, Red-Edge and NIR Shoulder Wavelength Regions in Grasslands

open access: yesRemote Sensing, 2022
Even though research has shown that the spectral parameters of yellow-edge, red-edge and NIR (near-infrared) shoulder wavelength regions are able to estimate green cover and leaf area index (LAI), a large amount of dead materials in grasslands challenges
Dandan Xu   +3 more
doaj   +3 more sources

Red edge effect of chalcone derivatives and their application in Bio-sensing. [PDF]

open access: yesRSC Adv
Chalcones capable of exhibiting excitation dependent fluorescence (EDF) and its EDF was utilized in the field of biosensors to obtain tunable brilliant blue to green color.
Saha A, Karar M, Choudhury S.
europepmc   +3 more sources

A Practical Method for Red-Edge Band Reconstruction for Landsat Image by Synergizing Sentinel-2 Data with Machine Learning Regression Algorithms [PDF]

open access: yesSensors
Red-edge bands are the most essential spectral data for multispectral remote sensing images, with them playing a critical role in monitoring vegetation growth status at regional and global scales.
Yuan Zhang   +4 more
doaj   +2 more sources

Adjustment of Sentinel-2 Multi-Spectral Instrument (MSI) Red-Edge Band Reflectance to Nadir BRDF Adjusted Reflectance (NBAR) and Quantification of Red-Edge Band BRDF Effects

open access: yesRemote Sensing, 2017
Optical wavelength satellite data have directional reflectance effects over non-Lambertian surfaces, described by the bidirectional reflectance distribution function (BRDF).
David P. Roy   +2 more
doaj   +3 more sources

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