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Biochemical and biophysical indices of fetal risk.
Clinics in Perinatology, 1974The commonly used indices of fetal risk are reviewed, and some methods of their determination are described. The relative predictive accuracy of four parameters is evaluated.
S. Effer
semanticscholar +3 more sources
GIScience and Remote Sensing, 2016 International audienceFor three agricultural crop types, winter wheat (Triticum aestivum L.), barley (Hordeum vulgare L.), and canola (Brassica napus L.), we estimated biophysical parameters including fresh and dry biomass, leaf area index and vegetation
Sahar Ghasemi, Jean-Pierre Wigneron
exaly +3 more sources
Effects of standing litter on the biophysical interpretation of plant canopies with spectral indices
Remote Sensing of Environment, 1996 Abstract Litter is frequently present within vegetation canopies and thus contributes to the overall spectral response of a canopy. Consequently, litter will affect spectral indices designed to be sensitive to green vegetation, soil brightness or other features.
W.J.D. van Leeuwen, A.R. Huete
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International Journal of Remote Sensing, 1993
Abstract The information content of vegetation indices currently derived from satellite observations is discussed using a physicallyâbased approach. These indices can, in principle, be related to some of the biophysical properties of the canopy through a complex set of equations, provided atmospheric effects, the anisotropy of the coupled surface ...
Bernard Pinty, Michel M Verstraete
exaly +3 more sources
Abstract The information content of vegetation indices currently derived from satellite observations is discussed using a physicallyâbased approach. These indices can, in principle, be related to some of the biophysical properties of the canopy through a complex set of equations, provided atmospheric effects, the anisotropy of the coupled surface ...
Bernard Pinty, Michel M Verstraete
exaly +3 more sources
Hyperspectral Indices and Image Classifications for Agriculture and Vegetation, 2018
Derivative hyperspectral vegetation indices (dHVIs) are extensively examined for their capabilities in characterizing forest biophysical and biochemical parameters at different spatial scales. Pros and cons of these dHVIs are explicitly revealed based on simulated datasets generated from radiative transfer models (virtual experiments) as well as ...
Quan Wang, Jia Jin, Rei Sonobe, J. Chen
semanticscholar +2 more sources
Derivative hyperspectral vegetation indices (dHVIs) are extensively examined for their capabilities in characterizing forest biophysical and biochemical parameters at different spatial scales. Pros and cons of these dHVIs are explicitly revealed based on simulated datasets generated from radiative transfer models (virtual experiments) as well as ...
Quan Wang, Jia Jin, Rei Sonobe, J. Chen
semanticscholar +2 more sources
Assessing 100 biophysical indices performances in the Mediterranean basin using multi-satellite data
International Journal of Remote Sensing, 2023Due to its impact on our ecosystem (i.e. vegetation, soil, water, etc.), global change has become more significant over time. Therefore, several biophysical indices (e.g.
F-E. Ezzaher +4 more
semanticscholar +1 more source
Optical vortices as potential indicators of biophysical dynamics
SPIE Proceedings, 2017Laser speckle patterns are granular patterns produced as a result of random interference of light waves. Optical vortices (OVs) are phase singularities in such speckle fields, characterized by zero intensity and an undefined phase. Decorrelation of the speckle fields causes these OVs to move in both time and space. In this work, a variety of parameters
Anindya Majumdar, Sean J. Kirkpatrick
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