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Topic: Millimetre cloud radar

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Passive radar

Types and uses of radar

Radar gun

Secondary surveillance radar

Doppler radar

Radar

Active Electronically Scanned Array

Synthetic aperture radar

NEXRAD

Transponder

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	Radar - Wikipedia, the free encyclopedia
		Radar is used in many contexts, including meteorological detection of precipitation, air traffic control, police detection of speeding traffic, and by the military.
		In the transmitted radar signal, the electric field is perpendicular to the direction of propagation, and this direction of the electric field is the Polarization of the wave.
		Radar jamming refers to RF signals originating from sources outside the radar, transmitting in the radar's frequency and thereby masking targets of interest.
	en.wikipedia.org /wiki/Radar (4578 words)

	Radar - Biocrawler (Site not responding. Last check: 2007-11-02)
		Radar waves reflect in a variety of ways depending on the size of the radio wave and the shape of the target.
		Early radars used very long wavelengths that were larger than the targets and received a vague signal, whereas modern systems use shorter wavelengths (a few centimetres) that can image objects as small as a loaf of bread.
		This means that a radar has a distinct minimum range, which is the length of the pulse divided by the speed of light, divided by two.
	www.biocrawler.com /encyclopedia/Radars (2514 words)

	Bio - Radar Wikipedia RSS Feed radar
		RADAR is a system used to detect, range (determine the distance of), and map objects such as aircraft, ships, and rain, that was first suggested as a "ship finder" by Dr. Allen B. DuMont in 1932.
		Thus radar is suited to detecting objects at very large ranges where other reflections, like sound or visible light, would be too weak to detect.
		The radar may try to unify the targets, reporting the target at an incorrect height, or worse - eliminating it on the basis of jitter or a physical impossibility.
	blinkbits.com /bits/viewtopic/radar_radar_wikipedia_rss_feed?t=3486549 (4162 words)

	Millimeter cloud radar - Wikipedia, the free encyclopedia
		The millimeter wave cloud radar (MMCR) is a remote sensing instrument that transmits a radar pulse directly overhead to determine the tops and bottoms of clouds.
		It can also serve as a type of Doppler radar in measuring up and down particle movements within a cloud.
		Values that the radar measures are doppler velocity, radar reflectivity, and spectral width.
	en.wikipedia.org /wiki/Millimetre_cloud_radar (107 words)

	UFAM Radars: 35 GHz Cloud Radar
		A 35 GHz (9 mm wavelength) cloud radar is under construction at RAL which is designed to complement the existing 94 GHz (3 mm) "Galileo" radar currently operating at Chilbolton.
		Millimetre-wave cloud radars exploit the fact that the echo intensity of Rayleigh scatter increases with the inverse-fourth power of the wavelength.
		The new 35 GHz cloud radar is scheduled to be operational by February 2003.
	www.met.rdg.ac.uk /radar/ufam/35GHz.html (395 words)

	Radar - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-11-02)
		Image:Radar antenna.jpg RADAR is a system used to detect, range (determine the distance of), and map objects such as aircraft, ships, and rain, that was first suggested as a "ship finder" by Dr. Allen B. DuMont in 1932.
		Radar has traditionally been used for military purposes, because information about the enemy is on the highest level of importance in warfare.
		Since short range radar is relatively easy (cheap and harmless) with modern electronic technology, there may be other, perhaps more productive, ways of using it to improve traffic safety and relieve congestion, such as driver displays and smart traffic lights.
	www.educhy.com /index.php/Radar (4132 words)

	Tekes teknologiapörssi - Hakutulokset
		Millimetre wave radar is a method based on millimetre wave radio waves for remote sensing of hydrometeors (droplets and ice crystals) in the atmosphere and for touch-free measurement of hydrometeors in gaseous environment.
		Millimetre wave radars frequently are applied in combination with other remote sensing systems like radiometer or lidar (light radar).
		Among others, potential research fields are the development of clouds, the influence or aerosols on cloud development and precipitation onset, and the relevance of clouds on earth’s radiation budget.
	www.tekes.fi /partner/fin/search/nayta_haku.asp?hakuid=21355 (1238 words)

	Radar
		rock or dirt, and are used by navigational radars.
		One serious limitation with this type of solution is that the broadcast is sent out in all directions, so the amount of energy in the direction being examined is subject to the parabolic "dish" to create a tight broadcast beam, typically using the same dish as the receiver.
		Phased array radars have been in use since the earliest years of radar use in Patriot Missile System, and are increasingly used in other areas because the lack of moving parts makes them more reliable, and sometimes permits a much larger effective antenna.
	www.med-help.info /?p=radar (2101 words)

	NRC-IAR: Cloud Profiling Radar
		The Cloud Profiling Radar (CPR) system was installed in the IAR Convair 580 aircraft in the fall of 1999.
		It was used operationally for the first time during the AIRS aircraft icing project at Mirabel Airport, Quebec, from December, 1999 until February, 2000, in collaboration with the Meteorological Service of Canada.
		Both passive (radiometers) and active (radar) millimetre-wave microwave sensors are considered to have potential for detecting icing conditions in front of an aircraft.
	iar-ira.nrc-cnrc.gc.ca /flight/flight_2b_e.html (265 words)

	Great Inventions -- Radar
		corner cubes are commonly used as radar reflectors to make otherwise difficult-to-detect objects easier to detect, and are often found on boats in order to improve their detection in a rescue situation.
		Patriot Missile System, and are increasingly used in other areas because the lack of moving parts makes them more reliable, and sometimes permits a much larger effective antenna.
		chirplet transform which makes use of the fact that radar returns from moving targets typically "chirp" (change their frequency as a function of time, as does the sound of a bird or bat).
	www.edinformatics.com /inventions_inventors/radar.htm (2172 words)

	UCL Eprints - Intercomparison of multiple years of MODIS, MISR and radar cloud-top heights
		Radar cloud-top heights were retrieved at both the Chilbolton Facility for Atmospheric and Radio Research, UK (CFARR) and the ARM Southern Great Plain site, USA (SGP), using millimetre wave cloud radars and identical algorithms.
		The cloud characteristics are different at each ground site, with clouds generally residing at higher altitudes at SGP, but with a greater occurrence of broken or multilayered clouds at CFARR.
		A method is presented to automatically eliminate scenes where clouds are of a broken nature, since it is difficult in these conditions to ensure that ground-based and satellite measurements refer to the same cloud deck.
	eprints.ucl.ac.uk /archive/00001183 (339 words)

	Radar - Wikipedia (Site not responding. Last check: 2007-11-02)
		Radar is a system that uses radio waves to detect, determine the distance of, and map, objects such as aircraft, ships, and rain.
		A radar system emits powerful radio waves and listens for any echoes.
		By analysing the reflected signal, the reflector can be located and sometimes identified.
	enwiki.moonlight.is-a-chef.net /index.php/Radar (4443 words)

	Discover the Wisdom of Mankind on radar (Site not responding. Last check: 2007-11-02)
		Share your wisdom on radar by "blinking" bits you like OR "sharing" bits you know.
		Rival gangs stay under radar after police pat...
		For those in the human resources healthcare insurance or employee benefits industries the answer to the question above is the free thought leader news portal - The Industry Radar (www.theindustryradar.com) which launched today designed to keep your `radar` attuned to all the latest industry trends and news.
	www.blinkbits.com /blinks/radar (4296 words)

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