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Post Info TOPIC: Envisat spacecraft
Blobrana


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RE: Envisat spacecraft
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The SCIAMACHY sensor on ESA's Envisat satellite has provided scientists with invaluable data on our planet, allowing them to map global air pollution and the distribution of greenhouse gases.
Using SCIAMACHY data from 2003-2009, scientists have detected an increase in atmospheric carbon dioxide (CO2) - one of the most important greenhouse gases that contributes to global warming - by about 2 parts per million (ppm).

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Blobrana


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Envisat mission
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ESA extends Envisat satellite mission
ESA Member States have unanimously voted to extend the Envisat mission through to 2013. Envisat - the world's largest and most sophisticated satellite ever built - has been providing scientists and operational users with invaluable data for global monitoring and forecasting since its launch in 2002.

"The decision to extend the Envisat mission operations, taken during the last ESA Earth Observation Programme Board meeting, is a recognition of the success of the mission, in terms of the wide number of scientific and operational users served and the good technical status of the satellite after seven years of operations" - Henri Laur, Envisat Mission Manager.

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Blobrana


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ESA map reveals European shipping routes
A synoptic view of European shipping routes can be seen for the first time thanks to a new map created using seven years of radar data from ESA's Envisat satellite.
Earth observation satellites have been providing ship-detecting services for several years, but this is the first time this amount of data collected over an extended period has been processed to produce an overview of ship traffic patterns.
Dr Vincent Kerbaol and Guillaume Hajduch of France's CLS (a subsidiary of the French space agency, CNES) created the map based on a new ship detection algorithm they developed. Using this algorithm, they processed near-real time products from Envisat's Advanced Synthetic Aperture Radar (ASAR) from 2002 to 2009.

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Blobrana


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RESEARCHERS USE SATELLITES TO MEASURE INLAND FLOODS
Satellites that were designed to measure sea level over the world's oceans can serve a valuable purpose over land, a new study has found.
Researchers used NASA's TOPEX/Poseidon satellite and the European Space Agency's ENVISAT satellite to measure the height and extent of flooding in North America, South America, and Asia.
The study shows that satellites can supplement the measurements that the United States Geological Survey (USGS) gathers from flood gauges on the ground -- at little or no cost, said C.K. Shum, professor of earth sciences at Ohio State University.

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Blobrana


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Launched from Kourou in French Guiana on the night of 28 February 2002, ESA’s Envisat spacecraft marks its fifth year in space. Having orbited Earth more than 26 000 times, the world’s largest and most complex environmental satellite ever launched has travelled a distance of more than 1 000 000 000 kilometres, nearly the equivalent of travelling to Jupiter and back.
 Generating some 280 Gigabytes of data products daily, Envisat has gathered 500 Terabytes to date. 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.

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