Converse of object

• ground: One response to climate change has been the retreat of five ice shelves, floating extensions of the grounded ice sheet.

• form: During the colder phases, large ice sheets formed over the northern hemisphere land masses.

Adjective modifier

• Antarctic: The most likely potential source for such an anomaly is meltwater from the Antarctic ice sheet in a global warming scenario.

• polar: Recent discoveries show a major hidden source of water comes from polar ice sheets.

• continental: The illustrated site describes the advance and retreat of the Laurentide continental ice sheet.

• large: During the colder phases, large ice sheets formed over the northern hemisphere land masses.

• permanent: The Antarctic has had a permanent ice sheet for the last 30 million years.

• Quaternary: The influence of glacier hydrology on the dynamics of a large Quaternary ice sheet.

Modifies a noun

• flow: Flow variability in the Scandinavian Ice Sheet: modeling the coupling between ice sheet flow and hydrology.

• collapse: This study polled many glaciologists and produced an assessment of the risk associated with ice sheet collapse.

• surface: The model calculates the free ice sheet surface and the coupled ice flow and temperature fields along the flow line between the boreholes.