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Sentinel-6: 'Dog kennel' satellite blasts off on ocean mission
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A satellite that will be critical to the understanding of climate change has blasted skyward from California.
Sentinel-6 "Michael Freilich" is set to become the primary means of measuring the shape of the world's oceans.

Its data will track not only sea-level rise but reveal how the great mass of waters is moving around the globe.

Looking somewhat like a dog kennel, the sophisticated 1.3-tonne satellite was taken aloft from the Vandenberg base on a SpaceX Falcon-9 rocket.

The Sentinel is a joint endeavour between Europe and the US, and will continue the measurements that have been made by a succession of spacecraft, called the Jason-Topex/Poseidon series, going back to 1992.

These earlier missions have shown unequivocally that sea levels globally are rising, at a rate in excess of 3mm per year over the 28-year period. And their most recent data even suggests there is an acceleration under way, with levels recorded as going up at over 4mm per year.

source:https://www.bbc.com/news/science-environment-55022567
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