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as most people know majority the earth

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is covered by the oceans they store a

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majority of the heat that we get and in

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that respect interact with the climate

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the ocean is a big sink for heat it can

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absorb heat from the atmosphere so if we

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continue to warm the atmosphere through

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increasing carbon dioxide or other

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factors the ocean will absorb that heat

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and store it and it can store up to 80

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percent of that heat but the question is

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will it keep doing that in the future

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well the ocean surface topography

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mission is important because it provides

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a view of the changing climate it

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monitors the consequences of global

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climate change and global warming by

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monitoring sea-level rise half the ward

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population lives within 100 kilometre

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sea level is rising at 3 millimeters per

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year the ice Street of Antarctica and

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Greenland each has a capacity of Reason

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it's measuring the height of the ocean

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surface to a few inches from 800 miles

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above the surface of the earth measure

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my hand here is the spacecraft in this

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ball is the pulse of energy radar energy

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that it sends to the surface what it

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does is it measures the amount of time

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for it to come back if the ocean surface

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is lower which is represented by this

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lower step here it takes a longer amount

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of time to come back than if it were

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higher the radar altimeter sends a pulse

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of microwave energy down to the surface

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and measures the amount of time it takes

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to get back it continues the

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measurements that were started in 1992

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by topex/poseidon and continued with

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adjacent one satellite and now we have

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the OST M which is going to continue

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this record into the future and will

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help us answer questions like is sea

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level rise going to accelerate OST M is

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going to be able to provide us some of

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the key information to understanding and

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predicting and tracking hurricanes

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it's going to be able to provide us same

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kind of information for oil rigs for

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shipping or fisheries management and

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those are some of the very practical

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applications besides just the long-term

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monitoring of climate it will really