| Term: | Ice stream |
| Definition: | Part of an Ice sheet; Ice flow of higher velocity than surrounding ice masses; Unrestricted by topographic features, which protrude out of the ice mass; The Primary Classification should be extended by the class 'Ice stream' because they play an important role in the drainage of the Antarctic ice sheet. Although variable in time and space, they are well defined glaciological features and are of high importance for draining the continental ice sheets. |