What is hyperpycnal flow?

What is hyperpycnal flow?

A hyperpycnal flow forms when a relatively dense land-derived gravity flow enters into a marine or lacustrine water reservoir. As a consequence of its excess of density, the incoming flow plunges in coastal areas, generating a highly dynamic and often long-lived dense underflow.

Do hyperconcentrated and concentrated debris flows generate surge-like hyperpycnal flows?

Although land generated cohesive debris flows, hyperconcentrated flows, and concentrated flows can generate surge-like hyperpycnal flows, the volume of sediments accumulated by these flows is small compared to that related to sustained sediment-laden turbulent flows.

Are hyperpycnal flows and turbidite currents similar?

Because the turbidite paradigm was in full force during the 1970s and 1980s, Wright et al. ( 1986) emphasized the similarity between hyperpycnal flows and turbidity currents.

Do shelf currents affect hyperpycnal flow?

The problem is that shelf currents operate on many continental margins. For example, Imran and Syvitski ( 2000) studied the Northern California Margin near the mouth of the Eel River and suggested that hyperpycnal flows may be influenced by the along-shelf currents and be deflected northward away from the canyon.

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