Results 51 to 60 of about 406,860 (186)

Application of red edge band in remote sensing extraction of surface water body: a case study based on GF-6 WFV data in arid area

open access: yesHydrology Research, 2021
This paper mainly researches the application method of red edge band in water body remote sensing extraction. Gaofen-6 (GF-6) WFV data were chosen for the high spatial resolution, more bands, and wide width. Two new methods were proposed: the single-band
Zhao Lu   +9 more
doaj   +1 more source

Characterizing changes in soybean spectral response curves with breeding advancements [PDF]

open access: yes, 2014
Citation: Christenson, Brent S., William T. Schapaugh, Nan An, Kevin P. Price, and Allan K. Fritz. “Characterizing Changes in Soybean Spectral Response Curves with Breeding Advancements.” Crop Science 54, no. 4 (2014): 1585–97.
An, Nan   +4 more
core   +1 more source

Efficient Red-Edge Materials Photosensitized by Rhodamine 640

open access: yesThe Journal of Physical Chemistry B, 2009
We report on tunable, highly efficient and photostable solid-state dye laser emitting around 640 nm based on Rhodamine 640 incorporated into homopolymers, linear and cross-linked copolymers, and silicon-modified organic matrices. The effect on the lasing properties of both dye concentration and environmental conditions was analyzed.
García-Moreno, I.   +4 more
openaire   +3 more sources

Exploring the relationship between reflectance red edge and chlorophyll content in slash pine [PDF]

open access: yes, 1990
Chlorophyll is a key indicator of the physiological status of a forest canopy. However, its distribution may vary greatly in time and space, so that the estimation of chlorophyll content of canopies or branches by extrapolation from leaf values obtained ...
Curran, P. J., Dungan, J., Gholz, H.
core   +1 more source

Mapping Intra-Field Yield Variation Using High Resolution Satellite Imagery to Integrate Bioenergy and Environmental Stewardship in an Agricultural Watershed

open access: yesRemote Sensing, 2015
Biofuels are important alternatives for meeting our future energy needs. Successful bioenergy crop production requires maintaining environmental sustainability and minimum impacts on current net annual food, feed, and fiber production.
Yuki Hamada   +2 more
doaj   +1 more source

Nanophotonic hybridization of narrow atomic cesium resonances and photonic stop gaps of opaline nanostructures [PDF]

open access: yes, 2014
We study a hybrid system consisting of a narrowband atomic optical resonance and the long-range periodic order of an opaline photonic nanostructure. To this end, we have infiltrated atomic cesium vapor in a thin silica opal photonic crystal.
Harding, Philip J.   +3 more
core   +3 more sources

The red‐edge effects: 30 years of exploration

open access: yesLuminescence, 2002
AbstractIn 1970, three laboratories independently made a discovery that, for aromatic fluorophores embedded into different rigid and highly viscous media, the spectroscopic properties do not conform to classical rules. The fluorescence spectra can depend on excitation wavelength, and the excited‐state energy transfer, if present, fails at the ‘red ...
openaire   +3 more sources

Study on red edge characteristics of rice spectral caused by nitrogen level

open access: yes浙江大学学报. 农业与生命科学版, 2001
The canopy spectra of rice under different nitrogen levels were studied. Some red edge parameters in the first derivative reflectance curve (wavelength, amplitude and area of the red edge peak) were studied to evaluate rice leaf chlorophyll, LAI etc. Red
WANG Xiu-zheng   +3 more
doaj   +1 more source

Earthshine observation of vegetation and implication for life detection on other planets - A review of 2001 - 2006 works

open access: yes, 2007
The detection of exolife is one of the goals of very ambitious future space missions that aim to take direct images of Earth-like planets. While associations of simple molecules present in the planet's atmosphere ($O_2$, $O_3$, $CO_2$ etc.) have been ...
A. Danjon   +22 more
core   +2 more sources

Meta-analysis of the detection of plant pigment concentrations using hyperspectral remotely sensed data [PDF]

open access: yes, 2015
Passive optical hyperspectral remote sensing of plant pigments offers potential for understanding plant ecophysiological processes across a range of spatial scales.
A Gitelson   +112 more
core   +3 more sources

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