European Remote-Sensing satellite (ERS) was the European Space Agency's first Earth-observing satellite. It was launched on July 17, 1991 into a Sun synchronous polar orbit at a height of 782–785 km.
Like its predecessor ERS-1, the ERS-2 satellite launched on 21.04.95 by Ariane 4, monitors the ground day and night under all weather conditions thanks to its powerful sharp-eyed, cloud-piercing radars. ERS-2 also carries an instrument to help monitor the ozone layer.
copyrights ESA
copyrights ESA
Since the launch of ERS-1, it has been possible to measure with great precision the topography of the Greenland and Antarctic ice sheets. Repeated monitoring has shown that the Greenland ice sheet is changing shape: at the centre it is expanding and at the sides it is growing smaller, while its volume remains roughly constant.
:: More information on the ESA's Website
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