Results 21 to 30 of about 77,186 (166)

Reflection in a Translation Invariant Surface [PDF]

open access: yesMathematical Physics, Analysis and Geometry, 2007
We prove that the focal set generated by the reflection of a point source off a translation invariant surface consists of two sets: a curve and a surface. The focal curve lies in the plane orthogonal to the symmetry direction containing the source, while the focal surface is translation invariant.
Guilfoyle, Brendan, Klingenberg, Wilhelm
openaire   +3 more sources

Reflections on surfaces [PDF]

open access: yesNature, 1975
Science and Technology of Surface Coating. Edited by B. N. Chapman and J. C. Anderson. Pp. xvii + 463. (Academic: London and New York, 1974.) £14.80; $41.50. Characterisation of Solid Surfaces. Edited byP. F. Kane and G. R. Larra-bee. Pp. xviii+670. (Plenum: London and New York, 1974.) $39.00.
openaire   +1 more source

Modeling Snow Surface Spectral Reflectance in a Land Surface Model Targeting Satellite Remote Sensing Observations

open access: yesRemote Sensing, 2020
Snow surface spectral reflectance is very important in the Earth’s climate system. Traditional land surface models with parameterized schemes can simulate broadband snow surface albedo but cannot accurately simulate snow surface spectral reflectance with
Donghang Shao   +4 more
doaj   +1 more source

Hyperspectral Irradiance Data for a Comparison and an Analysis of Optical Satellite Spectral Observation: Based on Seogwipo Forest Flux Tower [PDF]

open access: yesGeo Data, 2019
Comparison with ground-truth data is essential for developing and applying remote sensing algorithm towards the Earth surface. Unfortunately, major sources of domestic ground-truth data are depending on field-campaign with limited period because of ...
Hongtak Lee, JongMin Yeom
doaj   +1 more source

A Conceptual Model of Surface Reflectance Estimation for Satellite Remote Sensing Images Using in situ Reference Data

open access: yesRemote Sensing, 2012
For satellite remote sensing, radiances received at the sensor are not only affected by the atmosphere but also by the topographic properties of the terrain surface.
Ke-Sheng Cheng, Hsien-Wei Chen
doaj   +1 more source

USING AEROSOL REFLECTANCE FOR DUST DETECTION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
In this study we propose an approach for dust detection by aerosol reflectance over arid and urban region in clear sky condition. In urban and arid areas surface reflectance in red and infrared spectral is bright and hence shorter wavelength is required ...
S. Bahramvash Shams, A. Mohammadzade
doaj   +1 more source

Research on Hyperspectral Surface Reflectance Dataset of Typical Ore Concentration Area in Hami Remote Sensing Test Field [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Surface reflectance data is the basic data source for the hyperspectral parametric remote sensing products and remote sensing quantitative application, which is widely used in various application fields such as natural resources and ecological ...
S. Liang   +5 more
doaj   +1 more source

Investigations on the Influence of Surface Textures on Optical Reflectance of Multi-crystalline Silicone (MC-Si) Crystal Surfaces-Simulations and Experiments

open access: yesInternational Journal of Renewable Energy Development, 2022
MC-Si is the most widely used material for making solar PV cells. In spite of the considerable research on improving the conversion efficiency of MC-Si solar PV cells still it remains well within the range of 15-20%.
Sudeep Ullattil   +3 more
doaj   +1 more source

GF-1 WFV Surface Reflectance Quality Evaluation in Countries along “the Belt and Road”

open access: yesRemote Sensing, 2023
The GaoFen-1 wide field of view (GF-1 WFV) has produced level 1 digital number data globally; however, most applications have focused on China, and data quality outside China has not been validated.
Yaozong Ding   +9 more
doaj   +1 more source

Leaf Surface Reflectance Does Not Affect Biophysical Traits Modelling from VIS-NIR Spectra in Plants with Sparsely Distributed Trichomes

open access: yesRemote Sensing, 2021
In this study, we examine leaf reflectance as the main optical property used in remote sensing of vegetation. The total leaf reflectance consists of two main components: a diffuse component, originating from the leaf interior, and a component reflected ...
Eva Neuwirthová   +3 more
doaj   +1 more source

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