Articles | Volume 7, issue 2
Earth Surf. Dynam., 7, 377–391, 2019
https://doi.org/10.5194/esurf-7-377-2019
Earth Surf. Dynam., 7, 377–391, 2019
https://doi.org/10.5194/esurf-7-377-2019

Research article 26 Apr 2019

Research article | 26 Apr 2019

Potential erosion capacity of gravity currents created by changing initial conditions

Jessica Zordan et al.

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Cited articles

Ancey, C.: Gravity flow on steep slope, vol. Buoyancy Driven Flows, Cambridge University Press New York, 2012. a
Azpiroz-Zabala, M., Cartigny, M. J., Talling, P. J., Parsons, D. R., Sumner, E. J., Clare, M. A., Simmons, S. M., Cooper, C., and Pope, E. L.: Newly recognized turbidity current structure can explain prolonged flushing of submarine canyons, Sci. Adv., 3, e1700200, https://doi.org/10.1126/sciadv.1700200, 2017. a, b
Baas, J. H., McCaffrey, W. D., Haughton, P. D., and Choux, C.: Coupling between suspended sediment distribution and turbulence structure in a laboratory turbidity current, J. Geophys. Res.-Oceans, 110, 2005, https://doi.org/10.1029/2004JC002668, 2005. a, b
Beghin, P., Hopfinger, E., and Britter, R.: Gravitational convection from instantaneous sources on inclined boundaries, J. Fluid Mech., 107, 407–422, 1981. a, b, c
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Short summary
The effect of buoyancy and bottom slope on the runout and entrainment capacity of experimentally reproduced saline gravity currents is studied. The shape of the current is modified due to the entrainment of ambient water, particularly within the body region. For steep slopes, two opposite mechanisms of mass exchange are identified: the current entrainment of water from the upper surface due to the enhanced friction at the interface and the head feeding by a rear-fed current.