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What we're really trying

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to find out is
how do things change over time?

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They change slowly over time
as a whole system.

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So we're seeing millimeter level
trends over the course

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of many years.

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However,
the ocean is very dynamic,

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and knowing what's happening in
the regional space

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is very, very different.

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And it changes within hours.

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So really understanding
what's happening within hours

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is very, very important.

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So even with the best models
that have now been created,

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they still need data to actually

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inform and train those models.

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Understanding what's happening
with the full water cycle,

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whether it's freshwater,
coastal,

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and the oceans is very,
very important

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to be able to literally,

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affect what's happening
with agriculture,

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the cleanliness of our water,
the availability of our water,

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and also the economics, of
of what's happening with the,

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displacement of water
and where it's needed.

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And there's too much of it
in short amounts of times, which

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caused disasters like floods
to very on the opposite scale,

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where there's too little
and we have droughts

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and, tremendous, impacts
with the lack of water.

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Having a measurement

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really is important towards

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understanding
what's happening with the ocean,

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both in real time but
also in terms of forecasting,

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because it really impacts
how we live in everyday life

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along the coast,

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but also in terms
of what happens in the ocean

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and on the ocean, whether it's
with shipping, navigation,

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and especially with
how the ocean is interacting

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with the atmosphere

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towards these sorts of extreme
events like hurricanes.

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I really hope like Sentinel
6B data are going to be,

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used by people
all around the world

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to improve, our forecast,
whether it's for El Nino, La Nin

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or hurricane intensification
or for coastal communities

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to better plan for the
for the future.

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Sentinel-6B is the latest
in a long generation

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of satellite altimeters.

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Provides really good information

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about how sea levels

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are changing

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now, but also compare them to
how they've changed in the past.

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So we can see exactly how
things are evolving over time

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as Earth
changes in our oceans change.

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So the
way the Sentinel-6B measures is

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it sends a radar signal down

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to the surface of the ocean
and measures

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how long it takes that signal
to get back to the satellite.

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And from that, we can really get
a very accurate measurement

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of how sea levels are changing
locally and on a global scale,

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down to
about a one inch accuracy.