T    Reflectance is the ability of a material to reflect the energy incident on its surface. Terms of Use - U    F    Return to Landsat Science Products OverviewSurface reflectance improves comparison between multiple images over the same region by accounting for atmospheric effects such as aerosol scattering and thin clouds, which can help in the detection and characterization of Earth surface change. Hemispheric Directional Reflectance. The most well-known type of reflective surface is the "cool roof". O    Category: general optics. A white surface is around 100. An important distinction is made between the use of albedo data at ≈4 km resolution for backscattering calculations and at ≈10 m resolution for transposition calculations to tilted planes, which might additionally require spectral information for monofacial or bifacial PV applications. M    P    Privacy Policy When it comes to light, spectral reflectance measurement is done to determine the material. Asset Integrity Management Key for Smart Operations, Oil & Gas Retailing Secondary Distribution Processes. V    https://doi.org/10.1016/j.solener.2019.02.040. Diffuse reflectance is defined as the radiant flux that is in a scattering manner. With respect to CUI, how well do thermal insulating coatings retard the spread of corrosion? This value can be used to describe the nature of a surface in terms of the surface finish. Corrosionpedia Terms:    W    Reflectance (or more specifically hemispherical reflectance) is a property of the material being observed. Five albedo databases are intercompared for the area around Ivanpah Playa, California, which has great importance in both remote sensing and solar applications. Reflectance is the ability of a material to reflect the energy incident on its surface. Solar reflectance is quantified by the solar reflective index (SRI), which uses a scale from 0 to around 100. The angle of view gives different values due to varying wavelengths and intensity of the reflected energy. A    One is specular reflectance (ρ s) and the second is diffuse reflectance (ρ d).. Specular reflectance is defined as the radiant flux that is not scattering or diffusing. Subscribe to our free newsletter now - The Best of Petropedia. It examines the main sources of surface albedo data that can be used to help solar irradiance modeling efforts, such as undertaken by the National Renewable Energy Laboratory (NREL) over the Americas, for instance, per the National Solar Radiation Database (NSRDB). Sour Crude - Production and Processing, Cyber Security Practices in the Oil and Gas Industry, Flare Management for Efficient Operations, Steering Smart Operations through Digital Oil Field. E    U    G    Where can I find a coating that is chloride and sulfur corrosion-resistant? I    It is found that, in the current MODIS-based NSRDB implementation, snow-impacted areas have been assigned a too high albedo in general because of the lack of consideration for the antagonistic effect of surface roughness, among other factors. For such needs, the limitations of the current sources of high-resolution reflectance data are discussed. N    Solar reflectance is the ability of a material to reflect, and not absorb, energy from the sun. X    F    L    Solar reflectance is quantified by the solar reflective index (SRI), which uses a scale from 0 to around 100. Copyright © 2020 Elsevier B.V. or its licensors or contributors. B    The reflectance of a material is determined when light and solar radiation is incident on the surface of the material. Reflectance. It is found non-negligible, and even large under cloudy conditions. Published by Elsevier Ltd. All rights reserved. J    Y    Reflectance can be categorized into two types. For example, reflection by a mirror. This study defines albedo and reflectance in the context of solar applications. Encyclopedia > letter R > reflectance. A pure black surface has a solar reflectance index around 0. 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Advances in Liquid Nylon Multipolymer Coatings for the Transportation and Renewable Energy Industries. D    If a roof has a low amount of solar reflectance then it will absorb a lot of heat energy from the sun, which in turn makes it more difficult to cool the structure upon which the roof sits. This will impact the downstream MODIS BRDF/Albedo (MCD43) and Vegetation Index (MOD13 and MYD13) data products which use the aerosol quantity flag to screen out high aerosol values. Are there any OSHA regulations that need to be taken into account when using thermal insulating coatings? ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. - Renew or change your cookie consent, Mobile Tools: A Disruptive Technology for Oil & Gas Operations, Pipelines: Lifelines of the Oil & Gas Industry, How Big Data is Transforming the Oil & Gas Industry, Sweet vs.