Satellites Capture First-Ever Gravity Map Of Tides Under Antarctic Ice

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GRACE-measured gravity fluctuations from twice-daily tides caused by the moon
Ohio State University scientists have used minute fluctuations in gravity to produce the best map yet of ocean tides that flow beneath two large Antarctic ice shelves. They did it using the twin satellites of the Gravity Recovery and Climate Experiment (GRACE), a joint project of NASA and the German Aerospace Center.


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