WEBVTT

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♪♪♪

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The Bay of Fundy in Canada has a
unique geography

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funneling the Atlantic Ocean into
some of the world's highest tides.

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At some points the water level can
rise and fall over forty feet.

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The water's edge at Minas Basin
shown in these Landsat 8 images

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changes dramatically depending on
the day and time.

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Because Landsat 8 passes over
quickly, the imagery cannot reveal

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the continuous progression of any
single tide event.

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However, tidal movement can be
simulated by resequencing the data

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like this.

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Intertidal zones can then be
mapped with this technique.

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In the north, Shepody Bay also 
experiences substantial

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tidal changes, and again when
imagery from Landsat's deep archive

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is rearranged, it's possible to
generate a simulated

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flood and ebb cycle, in this case
pulling back from

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the high water line almost 2 miles.

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Tools like Earth Explorer open the
entire Landsat archive

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to everyone interested in studying
tides across the globe.

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♪♪♪

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♪♪

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