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The percent of energy that is reflected off a surface and back to a sensor.
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∙ 10y ago
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What is the definition for attached flow?
Fluid that it attracted to a nearby surface and remains attached even when the surface curves away from the initial flow direction.
The reflectance curve for a white piece of paper would?
reflect long, medium and short wavelengths equally
Are the magnetic field lines open or closed curves?
closed curves.
What is the term for the way a mineral reflects light?
That would be the degree of luster.
What is a Mirror that curves out in the middle?
convex
What are reflectance curves?
Reflectance curves show the reflectivity as a function of wavelengt.
What is the definition for atmospheric reflectance?
the amount of solar radiation/the surface area of atmosphere/8
Why after you stop working out do you lose your curves?
If you stop working out and lose your curves the cause is obvious. These curves were toned muscles that are losing their definition.
Why is a three dimensional figure with curves surface is not a polyhedron?
It is so by definition.
Why Nature of spectral reflectance curves?
Spectral reflectance measure a thin film's characteristics by reflecting light off the film and analyzing the resulting reflectance spectrum over a range of wavelengths. Light reflected from different interfaces of the film can be in- or out-of-phase so these reflections add or subtract, depending upon the wavelength of the light and the film's thickness and index. The result is intensity oscillations in the reflectance spectrum that are characteristic of the film.To determine the film's thickness, the software calculates a theoretical reflectance spectrum that matches as closely as possible to the measured spectrum. It begins with an initial guess for what the reflectance spectrum should look like, based on the nominal film stack. This includes information on the thickness and the refractive index of the different layers and the substrate that make up the sample. The theoretical reflectance spectrum is then adjusted by adjusting the film's properties until a best fit to the measured spectrum is found.This metrology can be used on thin film thickness measurement, even for transparent films.
What is the difference between radiance and reflectance?
Radiance is the variable directly measured by remote sensing instruments. Basically, you can think of radiance as how much light the instrument "sees" from the object being observed. When looking through an atmosphere, some light scattered by the atmosphere will be seen by the instrument and included in the observed radiance of the target. An atmosphere will also absorb light, which will decrease the observed radiance. Radiance has units of watt/steradian/square meter. Reflectance is the ratio of the amount of light leaving a target to the amount of light striking the target. It has no units. If all of the light leaving the target is intercepted for the measurement of reflectance, the result is called "hemispherical reflectance." Reflectance (or more specifically hemispherical reflectance) is a property of the material being observed. Radiance, on the other hand, depends on the illumination (both its intensity and direction), the orientation and position of the target and the path of the light through the atmosphere. With effort, many of the atmospheric effects and the solar illumination can be compensated for in digital remote sensing data. This yields something which is called "apparent reflectance," and it differs from true reflectance in that shadows and directional effects on reflectance have not been dealt with. Many people refer to this (rather inaccurately) as "reflectance." For most of the vegetation indices in this FAQ, radiance, reflectance, and apparent reflectance can be used interchangeably. However, since reflectance is a property of the target material itself, you will get the most reliable (and repeatable) vegetation index values using reflectance. Apparent reflectance is adequate in many cases. See the related link.
What is bafrdf?
Bidirectional Reflectance Distribution Function
What is the difference between reflection and reflectance?
as such there is no soecific difference..
What has the author James Richard Wallis written?
James Richard Wallis has written: 'The fifty-foot chord definition for forest road curves' -- subject(s): Roads, Tables, Curves in engineering, Forestry engineering
What is reflectance in lighting design?
The ratio of reflected flux to incident flux. Flux - The time rate of flow. For example, volume per hour is the flux of a fluid. Reflectance also is called Light reflection Value. In lighting design, we need to consider all reflectance for proper lighting simulation to real time environment. In general, wall, floor, ceiling reflectance will be 50%,80%, 20-40%. It also depends on painting color of room
What is the definition of osculation?
KissingThe act of kissing.A kiss.Mathematics. A contact, as between two curves or surfaces, at three or more common points.
Why do the polar regions have high albedo?
Because snow reflects light more than non-white regions of the Earth and albedo is a measurement of reflectance. By definition white reflects all visible light therefore albedo is greatest .
