eCite Digital Repository
The evolution of submarine channels under the influence of Coriolis forces: Experimental observations of flow structures
Citation
Cossu, R and Wells, MG, The evolution of submarine channels under the influence of Coriolis forces: Experimental observations of flow structures, Terra Nova, 25, (1) pp. 65-71. ISSN 0954-4879 (2013) [Refereed Article]
Copyright Statement
Copyright 2012 Blackwell Publishing Ltd
Abstract
We present results from experimental gravity and turbidity currents to show that at high latitudes, the Coriolis effect strongly influences the internal flow structure in submarine channel systems. At high latitudes, Coriolis forces deflect the downstream velocity core, and consequently areas of deposition and erosion, to one side of the channel system. Over time, this supports the evolution of low-sinuosity submarine channels. These findings help explain the recently found relation that channels at low latitudes often show strongly sinuous planform geometries, whereas channels at high latitudes tend to be much less sinuous. On the basis of our observations and an existing conceptual model for channel evolution, we propose a process model for sedimentation regimes in turbidity currents, which is applicable to all latitudinal settings. © 2012 Blackwell Publishing Ltd.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | Coriolis force; deposition; erosion; flow structure; gravity; sedimentation; submarine channel; turbidity current |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Marine engineering |
Objective Division: | Transport |
Objective Group: | Water transport |
Objective Field: | Water transport not elsewhere classified |
UTAS Author: | Cossu, R (Dr Remo Cossu) |
ID Code: | 94974 |
Year Published: | 2013 |
Web of Science® Times Cited: | 27 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2014-09-22 |
Last Modified: | 2015-01-27 |
Downloads: | 0 |
Repository Staff Only: item control page