Perito Moreno Glacier BW
by Timothy Hacker
Title
Perito Moreno Glacier BW
Artist
Timothy Hacker
Medium
Photograph - Photographs - Watermark Will Not Appear On Prints.
Description
Ice calving, also known as glacier calving or iceberg calving, is the breaking off of chunks of ice at the edge of a glacier. It is a form of ice ablation or ice disruption. It is the sudden release and breaking away of a mass of ice from a glacier, iceberg, ice front, ice shelf, or crevasse. The ice that breaks away can be classified as an iceberg, but may also be a growler, bergy bit, or a crevasse wall breakaway.
Calving of glaciers is often accompanied by a loud cracking or booming sound before blocks of ice up to 60 metres (200 ft) high break loose and crash into the water. The entry of the ice into the water causes large, and often hazardous waves. The waves formed in locations like Johns Hopkins Glacier can be so large that boats cannot approach closer than 3 kilometres (1.9 mi). These events have become major tourist attractions in locations such as Alaska.
Many glaciers terminate at oceans or freshwater lakes which results naturally with the calving of large numbers of icebergs. Calving of Greenland's glaciers produce 12,000 to 15,000 icebergs each year alone.
Calving of ice shelves is usually preceded by a rift. These events are not often observed.
Etymologically, calving is cognatic with calving as in birthing a calf.
Uploaded
March 12th, 2015
Statistics
Viewed 421 Times - Last Visitor from Ottawa, ON - Canada on 04/23/2024 at 1:18 AM
Embed
Share
Sales Sheet
