Large Values of Hydraulic Roughness in Subglacial Conduits during Conduit Enlargement: Implications for Modeling Conduit Evolution

• Published in: Earth Surface Processes and Landforms
• Main Authors: Gulley, Jason D., Spellman, Patricia, Covington, M. D., Martin, J. B., Benn, D. I., Catania, G.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Digital Commons @ University of South Florida 2014
• Subjects: glacier hydrology; roughness; friction factor; englacial; subglacial; Earth Sciences; Svalbard; Rieperbreen; glacier
• Online Access: https://digitalcommons.usf.edu/geo_facpub/2174; https://doi.org/10.1002/esp.3447

Hydraulic roughness accounts for energy dissipated as heat and should exert an important control on rates of subglacial conduit enlargement by melting. Few studies, however, have quantified how subglacial conduit roughness evolves over time or how that evolution affects models of conduit enlargement...