Results 61 to 70 of about 406,860 (186)
More frequencies of KUV 02464+3239
, 2007 Preliminary results on KUV 02464+3239, a pulsating DA white dwarf are presented. Located near the red edge of the DAV instability strip, KUV 02464+3239 shows large amplitude and long period pulsation modes.
Bognár, Zs. +8 more
core +1 more source
Leaf chlorophyll content retrieval of wheat by simulated RapidEye, Sentinel-2 and EnMAP data
Journal of Integrative Agriculture, 2019 Leaf chlorophyll content (LCC) is an important physiological indicator of the actual health status of individual plants. An accurate estimation of LCC can therefore provide valuable information for precision field management.
Bei CUI +5 more
doaj +1 more source
Land Cover and Crop Classification Based on Red Edge Indices Features of GF-6 WFV Time Series Data
Remote Sensing, 2021 Time series of vegetation indices can be utilized to capture crop phenology information, and have been widely used in land cover and crop classification, phenological feature extraction, and planting structure monitoring.
Yupeng Kang +6 more
doaj +1 more source
Rotating Stellar Models Can Account for the Extended Main Sequence Turnoffs in Intermediate Age Clusters [PDF]
, 2015 We show that the extended main sequence turnoffs seen in intermediate age Large Magellanic Cloud (LMC) clusters, often attributed to age spreads of several hundred Myr, may be easily accounted for by variable stellar rotation in a coeval population.
Brandt, Timothy D., Huang, Chelsea X.
core +2 more sources
Red-edge excitation of fluorescence and dynamic properties of proteins and membranes [PDF]
Biochemistry, 1984 In moderately polar and viscous solvents, the emission spectra of fluorophores often shift to longer wavelengths as the excitation wavelength is increased toward the long-wavelength (red) side of the absorption. Red shifts occur because long-wavelength excitation results in photoselection of those fluorophores which are interacting most strongly with ...
J R, Lakowicz, S, Keating-Nakamoto
openaire +2 more sources
Optimal Exploitation of the Sentinel-2 Spectral Capabilities for Crop Leaf Area Index Mapping [PDF]
, 2012 The continuously increasing demand of accurate quantitative high quality information on land surface properties will be faced by a new generation of environmental Earth observation (EO) missions.
D'Urso, Guido +4 more
core +2 more sources
Evaluating Sentinel-2 Red-Edge Bands for Wetland Classification
Proceedings, 2019 Due to the high spatial heterogeneity and temporal variability, wetlands are one of the most difficult ecosystems to observe using remote sensing data.
Gordana KAPLAN, Ugur AVDAN
doaj +1 more source
Big Earth Data, 2021 Leaf area index (LAI) and canopy chlorophyll density (CCD) are key indicators of crop growth status. In this study, we compared several vegetation indices and their red-edge modified counterparts to evaluate the optimal red-edge bands and the best ...
Naichen Xing +6 more
doaj +1 more source
, 2002 We report spectroscopic observations (400 to 800nm, R = approx 100) of Earthshine in June, July and October 2001 from which normalised Earth albedo spectra have been derived. The resulting spectra clearly show the blue colour of the Earth due to Rayleigh
Angel +18 more
core +2 more sources
A test of time-dependent theories of stellar convection [PDF]
, 2011 Context: In Cepheids close to the red edge of the classical instability strip, a coupling occurs between the acoustic oscillations and the convective motions close to the surface.The best topical models that account for this coupling rely on 1-D time ...
B. Dintrans +25 more
core +1 more source