Results 41 to 50 of about 3,439,931 (317)

Examination of Sentinel-2A Multi-spectral Instrument (MSI) Reflectance Anisotropy and the Suitability of a General Method to Normalize MSI Reflectance to Nadir BRDF Adjusted Reflectance

open access: yes, 2017
The Sentinel-2A multi-spectral instrument (MSI) acquires multi-spectral reflective wavelength observations with directional effects due to surface reflectance anisotropy and changes in the solar and viewing geometry.
D. Roy   +5 more
semanticscholar   +1 more source

Calibration of BRDF Based on the Field Goniometer System Using a UAV Multispectral Camera

open access: yesSensors, 2022
The bidirectional reflectance distribution function (BRDF) is important for estimating the physical properties of a surface in remote sensing. In the laboratory, the BRDF can be estimated quickly and accurately using a goniometer, but it is very ...
Minji Kim   +5 more
doaj   +1 more source

Reflectance anisotropy spectroscopy of Fe3O4 (110): Anisotropic strain

open access: yesPhysical review B, 2018
We present a study of (110)-terminated magnetite using a range of surface-sensitive techniques, the foremost of those being reflectance anisotropy spectroscopy (RAS).
K. Fleischer   +5 more
semanticscholar   +1 more source

Optical resonances of indium islands on GaAs(001) observed by reflectance anisotropy spectroscopy

open access: yes, 2021
The optical properties of indium islands on GaAs(001) surfaces have been studied by reflectance anisotropy spectroscopy as a function of metal coverage.
Schintke, Silvia   +5 more
core   +2 more sources

Effects of Atmospheric, Topographic, and BRDF Correction on Imaging Spectroscopy-Derived Data Products

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Surface reflectance is an important data product in imaging spectroscopy for obtaining surface information. The complex retrieval of surface reflectance, however, critically relies on accurate knowledge of atmospheric absorption and scattering, and the ...
Marius Vogtli   +5 more
doaj   +1 more source

Third Radiation Transfer Model Intercomparison (RAMI) exercise: Documenting progress in canopy reflectance models

open access: yes, 2007
The Radiation Transfer Model Intercomparison ( RAMI) initiative benchmarks canopy reflectance models under well-controlled experimental conditions.
Pinty, B.   +79 more
core   +1 more source

Scanning Reflectance Anisotropy Microscopy for Multi-Material Strain Mapping

open access: yes, 2023
Strain-engineering of materials encompasses significant elastic deformation and leads to breaking of the lattice symmetry and as a consequence to the emergence of optical anisotropy. However, the capability to image and map local strain fields by optical
Fabian Haake (14616485)   +4 more
core   +1 more source

Intercomparison of retrieval algorithms for the specific surface area of snow from near-infrared satellite data in mountainous terrain, and comparison with the output of a semi-distributed snowpack model [PDF]

open access: yesThe Cryosphere, 2013
This study compares different methods to retrieve the specific surface area (SSA) of snow from satellite radiance measurements in mountainous terrain.
A. Mary   +10 more
doaj   +1 more source

Polishing-related optical anisotropy of semi-insulating GaAs studied by reflectance difference spectroscopy

open access: yes, 2000
The strong in-plane optical anisotropy of (001) semi-insulating GaAs, which comes from the submicron region under the surface, has been observed by reflectance difference spectroscopy.
Chen YH,Chinese Acad Sci,Inst Semicond,Lab Semicond Mat Sci,POB 912,Beijing 100083,Peoples R China.   +4 more
core   +2 more sources

Optical mechanisms behind vitrinite reflectance suppression caused by strong anisotropy: A case study of contact metamorphic coals

open access: yesMeitian dizhi yu kantan
ObjectiveFor vitrinite with weak anisotropy, which proves uniaxial and optically negative, replacing random vitrinite reflectance (Rran) with the maximum vitrinite reflectance (Rmax) allows for the accurate correction of vitrinite reflectance suppression
Yanfei AN   +3 more
doaj   +1 more source

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