Roughness of a subglacial conduit under Hansbreen, Svalbard

• Published in: Journal of Glaciology
• Main Authors: KENNETH D. MANKOFF, JASON D. GULLEY, SLAWEK M. TULACZYK, MATTHEW D. COVINGTON, XIAOFENG LIU, YUNXIANG CHEN, DOUGLAS I. BENN, PIOTR S. GŁOWACKI
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press 2017
• Subjects: glacier hydrology; roughness; subglacial conduits; Environmental sciences; GE1-350; Meteorology. Climatology; QC851-999; Svalbard; Hansbreen; glacier; Journal of Glaciology
• Online Access: https://doi.org/10.1017/jog.2016.134; https://doaj.org/article/23cf24a6f69b419f81975bc091351163

Hydraulic roughness exerts an important but poorly understood control on water pressure in subglacial conduits. Where relative roughness values are <5%, hydraulic roughness can be related to relative roughness using empirically-derived equations such as the Colebrook–White equation. General relat...