Paragraph 2
The satellite is the
of a sports utility
. It took 20 years to make and cost $1.2 billion. High-
radar will measure the
of water on 90 per cent of Earth's
. It will survey millions of lakes and 2.1 million kilometres of rivers. It will identify areas of water
that could threaten populations and
. A NASA spokesperson said: "SWOT will give us a ten-fold
in the [accuracy] and spatial
of our measurements of water height." It will help scientists to understand, "the critical
the oceans play in climate change".