satellite has a
to map the world's oceans,
and rivers. It is called SWOT - Surface Water and Ocean Topography. Data from the satellite will help
monitor how climate change is affecting water
. A journalist said: "SWOT is needed more than
, as climate change worsens
, flooding and coastal
." NASA said SWOT was of "
" importance. It said it would change
we see Earths water.