'First detailed monitoring unveils the behaviour, triggers and tempoof submarine sediment flows: are they sea-floor rivers of sand?'
- Biosciences NG08
- Lectures Talks and Workshops, Life and Environmental Sciences, Research
Part of the School Seminar Series
Speaker: Peter Talling (National Oceanography Centre, Southampton)
Host: Sebastian Watt
Abstract: Submarine sediment flows (called turbidity currents) and landslides are the volumetrically most important sediment transport processes on Earth. One turbidity current can transport ten times the annual sediment flux from all the world’s rivers. Some underwater landslides are bigger than Scotland. There are remarkably few direct observations from these submarine events in action. This talk presents the first detailed time-series of turbidity current velocity and concentration, and other key insights from direct monitoring at global test sites. What are the modes of behaviour, triggers and tempo of these fascinating submarine events, and how do they differ from their subaerial cousins?