polarization
polarization The phenomenon in which electromagnetic waves, such as light waves, vibrate in a preferred plane or planes; or the process of confining the vibrations to certain planes. In unpolarized light the vibrations are equally distributed in all directions perpendicular to the direction of propagation of the wave. If all the vibrations are confined to one plane, the light is said to be
plane-polarized (or
linearly polarized). If the light in one plane is out of phase with the light in the plane at right angles to it (i.e. if the peaks and troughs of the waves are not in step), then the light is said to be
circularly polarized. If all these phenomena occur together, the light is said to be
elliptically polarized. Plane polarization is usually caused by scattering, and circular polarization by strong magnetic fields. Circularly and elliptically polarized light can also be produced by a
wave plate. See also
stokes parameters.
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Weather Satellites Turn 40
News Wire article from: AP Online; 3/31/2000; ; 700+ words
; ...Hawkins, who worked at the National Environmental Satellite, Data and Information Service before joining the Weather Service. NESDIS operates the nation's weather satellites. And severe weather isn't the only use for satellites. Marine and...
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Antarctic satellite metorology: Applications for weather forecasting
Magazine article from: Monthly Weather Review; 2/1/2003; ; 700+ words
; ...Ocean has relied on weather satellites. Significant advancements...have come via the weather satellite. The advent of...Applications of satellite imagery during the...polar-orbiting weather satellites [Television Infrared...
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Forty Years of Weather Satellites
News Wire article from: AP Online; 4/1/2000; ; 700+ words
; ...Hawkins, who worked at the National Environmental Satellite, Data and Information Service before joining the Weather Service. NESDIS operates the nation's weather satellites. And severe weather isn't the only use for satellites. Marine and...
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Look to the sky: build your own weather satellite receiving station.
Magazine article from: Weatherwise; 11/1/2002; ; 700+ words
; ...course, weather satellite images are readily...of their home weather station. Whatever...FM band) from satellites operated by NOAA...For receiving satellite images while...States, NOAA's satellites provide the most...types of NOAA weather satellites by...Environmental ...
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The view from space. (weather satellites)(includes related articles)
Magazine article from: Weatherwise; 6/1/1995; ; 700+ words
; ...meteorologists to speculate about weather satellites. Harry Wexler was an early champion of weather satellites, a cause his contemporaries...Harry's Dream." "A satellite vehicle," Wexler wrote...inestimable value as a weather patrol for short-range...
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ANALYSIS: WEATHER FORECASTING: Weather satellite heralds return of `the wow factor' - and it could alter our lives in forecasting The latest in satellite technology has just been blasted into space, and it will force meteorological scientists to rewrite their programs
Newspaper article from: The Independent - London; 8/30/2002; ; 700+ words
; ...difference to the weather on the land. When...night the latest in weather satellite technology was blasted...Generation (MSG-1) satellites that will become operational...Partly that is because satellites bring better pictures...that collected by weather balloons - which still...with ...
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-U.S. NOAA: NOAA's GOES-10 weather satellite to replace GOES-9 in orbit
M2 Presswire; 7/10/1998; 700+ words
; ...of NOAA's weather satellites, GOES-9, is failing...life, but the GOES weather satellite data and imagery seen daily on TV weather forecasts will continue...are broadcast on TV weather forecasts. "Having a GOES satellite stored on orbit ready...the other two GOES ...
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Crucial Weather Satellites May Be Too Flawed to Use
Newspaper article from: The Washington Post; 6/28/1991; ; 700+ words
; ...to federal weather officials...coverage by these satellites could precipitate...one U.S. weather satellite, the GOES...conserved, the satellite might last...launch new weather satellites in 1989. Known...
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New satellite over the Pacific expected to improve forecasting GOES 9 will watch where our weather comes from
Newspaper article from: The Milwaukee Journal Sentinel; 1/26/1996; ; 700+ words
; ...previous weather satellites the GOES satellites are replacing. Also, the satellite will be able...the weather satellites." Launched...life of a weather satellite. For several...source for weather data when other satellites failed and...
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Policy statement: Operational use of weather satellites (adopted by the AMS Council on 18 January 1998)
Magazine article from: Bulletin of the American Meteorological Society; 3/1/1998; ; 700+ words
; Weather satellites are now a vital...of the world weather and climate monitoring...and efficient satellite system. To this...century advances in satellite technology have...impressive, and weather services throughout...meteorological data from satellites. It is now ...
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Weather Satellites
Dictionary entry from: Dictionary of American History
...separate weather satellite programs for civilians...the military. Weather satellites fall into two types...two geostationary satellites and two polar-orbiting satellites in orbit at all times, but satellite weather forecasting ran...
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weather satellite
Book article from: The Columbia Encyclopedia, Sixth Edition
...satellite artificial satellite used to gather...improvement of weather forecasting...first weather satellites in the United...1966 and launched weather satellites; and in 1972...Resources Technology Satellite (ERTS) provided...meteorological satellites include a ...
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Weather Satellite
Book article from: World of Earth Science
...Infra Red Observation Satellite, TIROS 1 televised...and helped forecast weather for the Antarctic...Administration. Some of these satellites were placed in geostationary...hemispheres. These satellites are able to provide...fishing industries. New satellites that probe Earth...Since the ...
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Satellites, Types of
Book article from: Space Sciences
Satellites, Types of Not long...launched the first satellite in 1957, satellites began to play an increasingly...used for the first weather satellites. By 2001...television, these satellites supply meteorologists...storms and predict the weather. This application of ...
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Satellite
Encyclopedia entry from: The Gale Encyclopedia of Science
...x2019; s only natural satellite is called the moon. Since...being made up of millions of satellites. In those rare instances where the mass of the satellite approaches that of the object...objects as artificially made satellites to distinguish them from...the planet ’ s weather to ...
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