Winston Glacier
| Winston Glacier | |
|---|---|
| Type | cirque/tidewater |
| Location | Heard Island, Territory of Heard Island and McDonald Islands, Australia |
| Coordinates | 53°9′S 73°38′E / 53.150°S 73.633°E |
| Thickness | approximately 55 meters |
| Terminus | Winston Lagoon, between Cape Lockyer and Oatt Rocks |
| Status | Retreating |
Winston Glacier (53°9′S 73°38′E / 53.150°S 73.633°E) is a glacier flowing to Winston Lagoon on the southeast side of Heard Island in the southern Indian Ocean. Its terminus is at Winston Lagoon, between Cape Lockyer and Oatt Rocks. To the northeast of Winston Glacier is Stephenson Glacier, whose terminus is located between Dovers Moraine and Stephenson Lagoon. To the southwest of Winston Glacier is Fiftyone Glacier, whose terminus is located between Lavett Bluff and Lambeth Bluff.
Winston Glacier was surveyed by ANARE (Australian National Antarctic Research Expeditions) in 1948. It was named by Antarctic Names Committee of Australia (ANCA) in 1964 in association with nearby Winston Lagoon.
The landscape of Heard Island and nearby McDonald Island is constantly changing due to volcanism, strong winds and waves, and climate change. Volcanic activity has been observed in this area since the mid-1980s, with fresh lava flows on the southwest flanks of Heard Island. Satellite imagery shows that McDonald Island increased in size from about 1 to 2.5 square kilometers between 1994 and 2004, as a result of volcanic activity.
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