A ridge with tops very rounded, the slopes of the sides usually being about 20° to 30°.

Related Terms

ICE KEEL

A downward projecting ridge on the underside of the ICE CANOPY, the counterpart of a RIDGE. An ice keel may extend as much as 50 meters below sea level.

AGED RIDGE

A ridge of ice forced up by pressure which has undergone considerable weathering

NEW RIDGE

A newly formed ice ridge with sharp peaks, the slope of the sides usually being about 40°. Fragments are visible from the air at low altitude.

CAP CLOUD

1. A cloud resting on the top of an isolated mountain peak. The cloud appears stationary, but actually is being continually formed to windward and dissipated to leeward. A similar cloud over a mountain ridge is called a CREST CLOUD. See also BANNER CLOUD. 2. False cirrus over a towering cumulus, in the form of a cap or hood

CONSOLIDATED RIDGE

A ridge (a line or wall of ice forced up by pressure) in which the base has frozen together.

CREST

The highest part of a wave or swell; or terrestrially, a hill or ridge

MEDIAN VALLEY

The axial depression of the midoceanic ridge system.

GAP

On the sea floor, a narrow break in a ridge or rise

GRAY-WHITE ICE

A subdivision of YOUNG ICE l5 to 30 centimeters thick. Gray-white ice under pressure is more likely to ridge than to raft.

RIDGE

1. On the sea floor, a long, narrow elevation with steep sides. 2. A line or wall of broken ice forced up by pressure. The ridge may be fresh or weathered. 3. In meteorology, an elongated area of relatively high atmospheric pressure, almost always associated with and most clearly identified as an area of maximum anticyclonic curvature of wind flow. The opposite of a ridge is called TROUGH. Sometimes called WEDGE.

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