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	Four years on, Envisat hailed for its contribution to Earth science
		Envisat circles the globe 14 times a day at a speed of seven kilometres per second providing continuously updated measurements of the swift changes occurring in the atmosphere.
		Envisat is the only satellite with the capability to provide synergy between radar and optical data, due to the power and depth of its instrumentation.
		Envisat data are also increasingly used for operational applications like monitoring the sea ice, oil slicks and illegal fisheries, among others.These applications require the fastest possible access to the satellite data so that quick decisions can be made.
	www.eurekalert.org /pub_releases/2006-02/esa-fyo022806.php (1277 words)

	Envisat
		The Envisat satellite is an Earth-observing satellite built by the European Space Agency that was launched on March 1, 2002 into a polar orbit at a height of 790 km (+/- 10 km).
		Envisat carries an array of ten earth-observation instruments that gather information about the earth (land, water, ice, and atmosphere) using a variety of measurement principles.
		Several of the instruments are advanced versions of instruments that were flown on the earlier ERS[?]-1 and ERS-2 missions.
	www.ebroadcast.com.au /lookup/encyclopedia/en/Envisat.html (197 words)

	Envisat Earth Observation Satellite - Aerospace Technology
		Envisat is an advanced polar-orbiting Earth observation satellite which will provide measurements of the atmosphere, ocean, land and ice over a five year period and was launched in March 2002 on an Ariane 5 rocket by the European Space Agency (ESA).
		Envisat is an advanced polar-orbiting Earth observation satellite that was launched in March 2002 on an Ariane 5 rocket by the European Space Agency (ESA).
		The Envisat launcher was assembled in Kourou in August 2001.
	www.aerospace-technology.com /projects/envisat (698 words)

	ESA - Observing the Earth - Envisat overview
		It carries ten sophisticated optical and radar instruments to provide continuous observation and monitoring of the Earth's land, atmosphere, oceans and ice caps.
		Envisat data collectively provide a wealth of information on the workings of the Earth system, including insights into factors contributing to climate change.
		Furthermore, the data returned by its suite of instruments are also facilitating the development of a number of operational and commercial applications.
	www.esa.int /esaEO/SEMWYN2VQUD_index_0_m.html (262 words)

	Spaceflight Now \| Breaking News \| Meet Europe's gigantic Environment Satellite
		Envisat, with its 14 x 4.5 m solar array which delivers 6.6 kilowatts of electrical power, was ferried to its launch pad in Kourou by a Russian Antonov and two Boeing 707 freighters.
		Envisat circles the Earth at 100-minute intervals, 14 times a day, returning in a 35-day cycle to the same orbit, and in 3 days draws a complete map of the world.
		Envisat should achieve even more: "If we can establish how much carbon is absorbed by algae, we will be better able to establish how much greenhouse gas the environment can actually tolerate, which will assist the prediction of climate development".
	spaceflightnow.com /news/n0111/13envisat (1274 words)

	EO News: Envisat and ERS-2 Reveal Hidden Side of Hurricane Rita - September 23, 2005
		Envisat acquired this Advanced Synthetic Aperture Radar (ASAR) image at 0344 UTC on 22 September (2344 on 21 September in U.S. Eastern Daylight Saving Time), when Hurricane Rita was passing west of Florida and Cuba.
		Envisat’s optical Medium Resolution Imaging Spectrometer (MERIS) is also being used to observe the storm during daylight, returning details of its cloud structure and pressure.
		Envisat carries both optical and radar instruments, enabling researchers to observe high-atmosphere cloud structure and pressure in the visible and infrared spectrum, while at the same time using radar backscatter to measure the roughness of the sea surface and so derive the wind fields just above it.
	earthobservatory.nasa.gov /Newsroom/MediaAlerts/2005/2005092320503.html (881 words)

	Universe Today - Envisat Watches Hurricane Frances
		Envisat carries both optical and radar instruments, enabling researchers to observe high-atmosphere cloud structure and pressure in the visible and infrared spectrum, while at around the same time using radar backscatter to measure roughness of the sea surface and so derive the wind fields just over it.
		Another instrument aboard Envisat is being used to take the temperature of Frances, both down at the surface of the ocean and at the heights of its towering clouds.
		Envisat carries ten sophisticated instruments to observe and monitor the Earth's atmosphere, land, oceans and ice caps, maintaining continuity with the Agency's ERS missions started in 1991.
	www.universetoday.com /am/publish/envisat_watches_hurricane_frances.html?392004 (1815 words)

	envisat
		Envisat was launched on 1st March 2002 by Ariane 5 and cost around €2bn.
		Envisat carries instruments to collect information that will improve understanding of each part of the Earth system and to predict how changes in one part will affect others.
		Many of Envisat’s instruments are a development of those that flew on the European Space Agency’s Earth-Observing missions of the 1990s (ERS-1 and -2).
	www.npagroup.co.uk /imagery/satimagery/envisat.htm (369 words)

	ESA Earthnet: Envisat workshops
		The main objective of the ENVISAT Symposium is to present the results of the ESA EO missions in exploitation.
		Since the launch of Envisat in March 2002 the MERIS instrument has been acquiring a wealth of high quality data, which are now being analysed by more than 350 Principal Investigators from almost all Earth science disciplines world-wide.
		The Envisat Validation Workshop was intended to review the first results of the validation of the Envisat geophysical data.
	envisat.esa.int /workshops (616 words)

	Dragon over water: Envisat monitors China's largest lake, rivers flooding
		Accordingly a radar sensor aboard Envisat was used to regularly monitor the Lake during 2004 to 2005.
		The Envisat results were used to distinguish three major types of land cover within the Poyang basin: permanent water bodies throughout the study period, areas of seasonal water variations and wet, typically marshy lowlands.
		However throughout the flood season, Envisat ASAR imagery was rapidly made available in near-real time to Dragon Rapid Mapping Principal Investigator Professor Li Jiren, of the Remote Sensing Technology Application Centre of China's Ministry of Water Resources, as a means for the authorities to identify floodwater extent and coordinate mitigation efforts.
	news.eoportal.org /research/051129_dragon.html (1096 words)

	Validation Satellitaire - news ENVISAT
		Envisat is the largest environmental platform ever built by Europe, and will provide an unprecedented look at the environment and the impact of human activity on our planet.
		Envisat was the first satellite to use the S5 complex for its complete preparation, fueling and pre-launch checkout procedure.
		Envisat is expected to be declared operational after just a few weeks, once its payload has been checked out and the various data-recovery links set up.
	www.aero.jussieu.fr /projet/ENVISAT/envinews.html (3288 words)

	BBC NEWS \| Science/Nature \| 'Green eye' prepares for launch
		Envisat could also shed light on the detailed mechanisms that lie behind El Niño, the climate event that sees the wet conditions normally found in the western Pacific move to the east, and the arid conditions common in the east appear in the west.
		Envisat will be launched on the giant Ariane 5 rocket, which can carry much heavier payloads than its predecessor, the Ariane 4.
		When Envisat was shipped to French Guiana, it took a Russian Antonov transport plane, two Boeing 747s and a boat to move 300 tonnes of equipment.
	news.bbc.co.uk /1/hi/sci/tech/1793919.stm (830 words)

	Envisat witnesses return of the South Polar ozone hole
		Envisat data show 2004's ozone hole is appearing about two weeks later than last year's, but at a similar time period to the average during the last decade.
		The ozone hole of 2002 was an exception to this general pattern, when a late September slowdown of the polar vortex caused the ozone hole to split in two and dissipate early.
		Envisat carries ten sophisticated optical and radar instruments to observe and monitor the Earth's atmosphere, land, oceans and ice caps, maintaining continuity with the Agency's ERS missions started in 1991.
	www.theozonehole.com /envisat.htm (1061 words)

	Aviso/Altimetry - Missions : Envisat
		The Envisat satellite (Environmental Satellite) is ERS-1 and 2 follow-on.
		Envisat is integrated in the new international climate study programmes, such as Goos and Godae /Mercator.
		Envisat is part of the coming operational era in oceanography, offering near-real time data access.
	www.jason.oceanobs.com /html/missions/envisat_uk.html (117 words)

	Envisat
		Envisat carried 300 kg of hydrazine monopropellant for orbital adjustments.
		Envisat was an advanced polar-orbiting Earth observation satellite which provided measurements of the atmosphere, ocean, land, and ice over a five year period.
		The Envisat satellite had an ambitious and innovative payload that ensured the continuity of the data measurements of the ESA ERS satellites.
	www.astronautix.com /craft/envisat.htm (1161 words)

	Europe's Envisat satellite prepares to blast off - 25 February 2002 - New Scientist
		Envisat represents £1.4 billion of investment and more than 10 years of research and preparation by 14 different countries - the 13 members of the European Space Agency and Canada.
		Envisat's instruments fall into three different categories: those that will study the surface of the planet, those that will focus on the atmosphere, and those that will monitor the satellite's position relative to the ground, providing further environmental data.
		The final four instruments aboard Envisat will be used to monitor the position of the satellite relative to the ground.
	www.newscientist.com /article.ns?id=dn1967 (772 words)

	Flashespace.com - En direct du ciel et de l'espace, l'actualité spatiale en français et en clair
		Envisat, le satellite européen d'observation de la Terre le plus ambitieux jamais mis au point, s'inscrit dans la lignée des missions ERS 1&2 lancées avec succès dans les années 90 par l'Agence spatiale européenne.
		Envisat décrit une orbite survolant les pôles de la Terre avec une inclinaison de 98° et à une altitude de 800 km.
		Avec Envisat, l'Europe pourra compléter une banque de données à l'échelle mondiale, qui rassemblera des mesures collectées pendant plus d'une décennie, offrant ainsi aux chercheurs un recul suffisant pour leur permettre d'analyser les tendances et les changements sur le moyen terme.
	www.flashespace.com /html/envisat.htm (1279 words)

	GIS News:ESA’s Envisat and JAXA’s Kodama complete interoperability test
		Envisat has been successfully relaying data to the European data-relay spacecraft Artemis, in geostationary orbit, since 2003 in order to allow data to be acquired, downlinked, processed and delivered to end users much faster.
		Envisat is able to do this because it is equipped with an antenna terminal that allows data to be transmitted on two channels of 100 Mbp/second each in the 27 GHz radio-frequency bandwidth, normally referred to as Ka-band.
		In the first stage, an Envisat Ka-band signal was transmitted to Kodama to demonstrate correct pointing of antenna terminals on the two satellites and the radio-frequency compatibility of the two systems.
	www.gisdevelopment.net /news/viewn.asp?id=GIS:N_lcqwjidkrx (792 words)

	Envisat Still Going Strong After Five Years - Space - RedOrbit (Site not responding. Last check: 2007-10-09)
		The amount of data returned by Envisat’s suite of 10 instruments is providing scientists with a global picture of our environment and is helping to fulfil the initial needs of the Global Monitoring for Environment and Security (GMES) initiative until the launch of the Sentinel satellites.
		Results of ongoing research projects using data from Envisat, as well as other ESA satellites, will be presented at the 2007 Envisat Symposium in Montreux, Switzerland, from 23 to 27 April.
		This anniversary is particularly important because it marks the end of Envisat’s nominal lifetime, as the satellite was initially only intended to stay in orbit for five years.
	www.redorbit.com /news/space/855353/envisat_still_going_strong_after_five_years/index.html (427 words)

	ESA Earthnet: The Medium Resolution Imaging Spectrometer Instrument
		Envisat Anomaly Recovery - As reported in previous communication, an anomaly occured on board Envisat on the 12th of December 2006, at 18:02:17 UTC, resulting in the interruption of the measurements of all the payload instruments.
		Decision was taken to restart the Envisat Operations and the Payload Module Computer was successfully started again on the 14th of december at 12:50 UTC.
		Envisat product dissemination should resume immediately after instrument switch-on as no specific impact on the data quality is expected as a result of this event.
	envisat.esa.int /instruments/meris (365 words)

	MEK - Envisat
		Envisat, celým jménem Environmental Satellite, po 26 minutách rozvinul své sluneční panely a nasměroval je ke Slunci.
		Envisat zachytí i ty nejjemnější změny nejrůznějších veličin zemského povrchu, což mu umožní varovat před zátopami, povodněmi, lavinami i bouřemi.
		Družice Envisat je vybavena soustavou čidel určených k rozličným úkolům od sledování zabarvení mořské hladiny přes její teplotu až po výšku vln.
	mek.kosmo.cz /druzice/ostatni/envisat (1816 words)

	envisat.html (Site not responding. Last check: 2007-10-09)
		Europe's ENVISAT satellite at ESA/ESTEC in Noordwijk, The Netherlands.
		ENVISAT is scheduled for launch in September 2001 aboard an Ariane-5 rocket.
		When these photos were taken, (April 08, 2001) the satellite had completed al of its test and was ready for the flight to Kourou.
	www.angelfire.com /fl/Jacqmans/envisat.html (45 words)

	Aviso/Altimetry - Missions : Envisat
		Built by Esa, the European Space Agency, Envisat carry ten complementary instruments to observe parameters ranging from the marine geoid to high-resolution gaseous emissions, among which a radar altimeter, and the orbitography and precise location system Doris.
		Envisat is integrated in the new international climate study programmes, such as Goos and Godae /Mercator.
		Envisat is part of the coming operational era in oceanography, offering near-real time data access.
	www.aviso.oceanobs.com /html/missions/envisat_uk.html (117 words)

	Universe Today - Ariane 5 Launches Envisat Successfully
		Envisat — the most ambitious Earth observation satellite — follows in the footsteps of ESA’s successful ERS-1 and ERS-2 missions launched in the 1990s.
		After a flawless lift-off, the Ariane 5 placed Envisat into sun-synchronous orbit, allowing ESA ground controllers at the space operations centre in Darmstadt, Germany, to take full control for the first time of the most complex satellite ever built in Europe.
		Envisat is expected to be declared operational after just a few weeks, once its payload has been checked out and the various data-recovery links set up.
	www.universetoday.com /am/publish/envisat_launched_ariane_5.html (687 words)

	ESA Building Big EO Bird
		During Envisat's operational phase, scheduled to last at least 5 years, the ten highly advanced instruments on board will help European scientists advance our understanding of global warming, climate change, ozone depletion, and changes in the oceans, ice sheets, vegetation and atmospheric composition.
		Thanks in particular to the advanced radar on board, Envisat will produce -- day and night and in all weathers -- high-quality images of the oceans, coastal zones, polar ice and land regions by bouncing microwaves off the Earth's surface and measuring the reflected radiation.
		Once in orbit, Envisat will provide international scientists with remote sensing data to chart, document and forecast changes in our environment and climate, helping Europe to meet the environment and economic challenges of the 21st Century.
	www.spacedaily.com /news/eo-envisat-00a.html (765 words)

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