Sliding of temperate basal ice on a rough, hard bed: creep mechanisms, pressure melting, and implications for ice streaming

• Published in: The Cryosphere
• Main Author: M. Krabbendam
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2016
• Subjects: geo; envir; Greenland; Weertman; The Cryosphere
• Online Access: https://doi.org/10.5194/tc-10-1915-2016; https://www.the-cryosphere.net/10/1915/2016/tc-10-1915-2016.pdf; https://doaj.org/article/f0652c4a132542eab4ec64cd8a0ddd35

Basal ice motion is crucial to ice dynamics of ice sheets. The classic Weertman model for basal sliding over bedrock obstacles proposes that sliding velocity is controlled by pressure melting and/or ductile flow, whichever is the fastest; it further assumes that pressure melting is limited by heat f...