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Reflection

Meteorology Red Watch or Red BoxReflectivity

Reflection of Light light bouncing off a surface
Light is said to be reflected when the angle at which light initially strikes a surface is equal to the angle at which light bounces off the same surface.

 


reflection"A change of direction and possibly amplitude of an electromagnetic, acoustic, or any other wave propagating in a material medium, as a consequence of spatial variation in the properties of the medium.

Reflection - the process whereby radiation (or other waves) incident upon a surface is directed back into the medium through which it traveled.

Reflection of Waves The process whereby waves bounce off a steep shoreline or structure rather than refracting or breaking, as they would in shallower waters. Reflected waves interact with oncoming waves to create confused sea conditions.

Reflection: The process in which energy incident on the surface is turned back into the medium through which it originated.

Reflection The process whereby a surface turns back a portion of the radiation that strikes it.
Refraction The bending of light as it passes from one medium to another.

Reflection The process whereby a portion of the radiation that is incident on a surface is reflected by that surface..

Reflection The return of light or sound waves from a surface. If a reflecting surface is plane, the angle of reflection of a light ray is the same as the angle of incidence.

Fresnel Reflection: The reflection of a radar signal from a single, dominating discontinuity of the refractive index, usually with a large horizontal extent.

Reflection of waves
When waves encounter land that rises steeply from the ocean bottom, they will reflect or bounce off the land rather than break or refract as they would in shallow water.

Reflection(6)
Refraction(6)
The bending of light as it passes from one medium to another.

Angle of Reflection
The angle at which a reflected ray of energy leaves a reflecting surface. It is measured between the outgoing ray and a perpendicular to the surface at the point of incidence (i.e., where the ray strikes).
Angstrom ...

Albedo - The reflection of a substance. usually expressed as a percentage of the incident radiation reflected. (in weather, it is the reflection of sunlight off the surface of the planet back in to space) ...

It is created by refraction, total reflection, and the dispersion of light. It is visible when the sun is shining through air containing water spray or raindrops, which occurs during or immediately after a rain shower.

The secondary rainbow is formed by two internal reflections (rather than one as in the primary rainbow), plus two refractions. Its spectral color sequence is from red inside to violet outside.

The wave may reach maximum amplitude in the lower middle troposphere or may be the reflection of an upper tropospheric cold low or an equatorward extension of a mid-latitude trough.

Radar Ground Clutter: Reflection from trees, buildings, hills in close around the radar.
Radar Scattering: The process of radar energy being scattered by targets back to the radar.

Halos are produced by reflection of light by ice crystals suspended in the earth's atmosphere and exhibiting prismatic coloration ranging from red inside to blue outside.

A sundog is a relatively common atmospheric optical phenomenon associated with the reflection/refraction of sunlight by the numerous small ice crystals that make up cirrus or cirrostratus clouds.

NEXRAD radar is very sensitive and can detect reflections as small as -28 dBZ, however, most significant precipitation events will reflect much more power, usually in the neighborhood of 15dBz or more.

They will, however, exhibit the rainbow and other reflection-refraction phenomena, as will ice crystals. The particles in fogs and clouds are much smaller, so they may show diffraction effects, as well as small-angle scattering in any case.

Those who don't speak Classical Greek or medical jargon use the more common term "snow blindness" to describe this condition, which is caused by the high reflection of sunlight from snow cover.

Any of a variety of bright circles or arcs centered on the sun or moon, caused by the refraction or reflection of light by ice crystals suspended in the earth's atmosphere and exhibiting prismatic coloration ranging from red inside to blue outside.

Rainbows are caused by the reflection and refraction (bending) of sunlight passing through raindrops. In heavy rains a double rainbow can often be seen. The sequence of a rainbows color is red, orange, yellow, green, blue, indigo and violet.

A radar target must have an index of refraction sufficiently different from that of the atmosphere to return a target signal to the radar by reflection, refraction, or scattering.

Snow blink (snow sky) A bright white glare on the underside of clouds, produced by the reflection of light from snow-covered surface. Snow blink is lighter than ice blink, and much lighter than land sky or water sky.

Radar- a method of detecting the distance, size, and movement of objects by their reflection of radio waves.
Radiosonde- a balloon carrying instruments for measuring conditions in the upper atmosphere.

Reflectivity: A measure of the fraction of incident radiation falling on a surface that is turned back from it by reflection. Reflectivity also refers to the degree by which precipitation is able to reflect a radar beam.

A ring or arc that encircles the sun or moon when seen through an ice crystal cloud or a sky filled with falling ice crystals. Halos are produced by refraction and reflection of light through the ice crystals.

ceilometer—A cloud-height measuring system. It projects light on the cloud, detects the reflection by a photoelectric cell, and determines height by triangulation.

Radar- Stands for "radio detection and ranging." An instrument that detects and ranges distant objects by measuring the scattering and reflection of radio beams.
Radiation- The transferring of energy through electromagnetic waves.

Halo
(Lunar Halo, Solar Halo) Group of optical phenomena, in the form of rings, arcs, pillars or bright spots, produced by the refraction of reflection of light by ice crystals suspended in the atmosphere (cirriform clouds, diamond dust, etc).

GROUND CLUTTER - False reflectivity showing up on a radar image caused by reflection of the radar beam by nearby ground obstacles. Abbreviated as GC.

Sun pillar A vertical streak of light extending above (or below) the sun. It is produced by the reflection of sunlight of ice crystals.

See also: Light, Cloud, Air, Water, Atmosphere