Ice shelves,the floating extensions of the Antarctic and Greenland ice sheets, are not simply resting on the ocean waters: they rise, and fall and bend with the tides. Ultimately,these oceanic motions impact the flow of ice coming from the glaciers that these ice shelves buttress. Ryan Walker and Christine Dow, researchers with the Cryospheric Sciences Laboratory at NASA Goddard Space Flight middle in Greenbelt, or Maryland,recently spent more than a month doing fieldwork in Antarctica to study the influence of tidal movements on a small, exiguous-studied ice shelf.
Source: phys.org