Talling, Peter J

Hasenhündl, Martin

Blanckaert, Koen

Pope, Ed L

Heijnen, Maarten

Ruffell, Sean C

Baker, Megan L

de Silva Jacinto, Ricardo

Hage, Sophie

Simmons, Stephen M

Heerema, Catherina

McGhee, Claire

Clare, Michael A

Cartigny, Matthieu J B

2022-11-24T12:23:00Z

2022-11-24T12:23:00Z

2022-10-12

<div class="csl-bib-body"> <div class="csl-entry">Talling, P. J., Hasenhündl, M., Blanckaert, K., Pope, E. L., Heijnen, M., Ruffell, S. C., Baker, M. L., de Silva Jacinto, R., Hage, S., Simmons, S. M., Heerema, C., McGhee, C., Clare, M. A., &#38; Cartigny, M. J. B. (2022, October 12). <i>Understanding Hazardous Seafloor Sediment Flows in the Congo Submarine Canyon, Offshore West Africa</i> [Poster Presentation]. Annual Symposium of Doctoral Programme on Water Resource Systems (DK) - 2022, 8252 Mönichwald, Austria. http://hdl.handle.net/20.500.12708/135933</div> </div>

http://hdl.handle.net/20.500.12708/135933

Avalanches of sediment along the seafloor (called turbidity currents) dominate sediment transfer into much of the deep ocean and form the largest sediment accumulations on Earth (submarine fans). These spectacular underwater flows carve some of the deepest canyons and longest channel systems found on our planet. Turbidity currents are sometimes very powerful and travel with speeds of up to 20 m/s. They can break valuable seabed telecommunications cables that now carry over 99% of global data traffic. These seabed sediment avalanches also play an important role in organic carbon transfer and burial, affecting longer-term climate change. Turbidity currents supply key nutrients and physically disturb deep-sea ecosystems, including biological diversity hot spots along submarine canyons. Despite their importance, there are remarkably few direct observations from turbidity currents in action, and they are thus poorly understood. This starkly contrasts with other major sediment transport processes, such as rivers. Research cruise JC187 on the RRS James Cook was the first of four research cruises. It revealed one of the largest channel-blocking landslides and made it possible to record the longest turbidity current ever measured, which caused two seabed telecommunications cable breaks.

en

submarine canyon

Congo canyon

turbidity current

bathymetry

morphology

telecommunications cable

Understanding Hazardous Seafloor Sediment Flows in the Congo Submarine Canyon, Offshore West Africa

Presentation

Vortrag

Durham University, United Kingdom of Great Britain and Northern Ireland (the)

Durham University, United Kingdom of Great Britain and Northern Ireland (the)

National Oceanography Centre, United Kingdom of Great Britain and Northern Ireland (the)

Durham University, United Kingdom of Great Britain and Northern Ireland (the)

Durham University, United Kingdom of Great Britain and Northern Ireland (the)

Marine Geosciences Unit, IFREMER Centre de Brest, Plouzané, France

University of Southampton, United Kingdom of Great Britain and Northern Ireland (the)

University of Hull, United Kingdom of Great Britain and Northern Ireland (the)

Durham University, United Kingdom of Great Britain and Northern Ireland (the)

Newcastle University, United Kingdom of Great Britain and Northern Ireland (the)

National Oceanography Centre, United Kingdom of Great Britain and Northern Ireland (the)

Durham University, United Kingdom of Great Britain and Northern Ireland (the)

TU Wien

Poster Presentation

X1

E4

Beyond TUW-research foci

Environmental Monitoring and Climate Adaptation

80

20

E222-01 - Forschungsbereich Wasserbau und Umwelthydraulik

0000-0001-5234-0398

0000-0001-8971-7427

0000-0002-2090-2971

0000-0002-8855-9452

0000-0002-8003-3587

0000-0003-0010-4208

0000-0002-0519-1470

0000-0003-1448-3878

0000-0001-6446-5577

Annual Symposium of Doctoral Programme on Water Resource Systems (DK) - 2022

12-10-2022

13-10-2022

Hybrid

Event for scientific audience

8252 Mönichwald

AT

The Centre for Water Resource Systems

Hasenhündl, Martin

Single Track

Geodäsie, Vermessungswesen

Sonstige und interdisziplinäre Geowissenschaften

2074

1059

20

80

http://purl.org/coar/resource_type/c_18co

conference poster not in proceedings

no Fulltext

en

none

Publications

Durham University

E222-01 - Forschungsbereich Wasserbau

E222-01 - Forschungsbereich Wasserbau

Durham University

National Oceanography Centre

Durham University

Durham University

Marine Geosciences Unit, IFREMER Centre de Brest, France

University of Brest, CNRS, IFREMER, Geo-Ocean, Franc

University of Hull

Durham University

Newcastle University

National Oceanography Centre

Durham University

0000-0001-5234-0398

0000-0001-8971-7427

0000-0002-6630-3683

0000-0002-2090-2971

0000-0002-8855-9452

0000-0002-8003-3587

0000-0003-0010-4208

0000-0002-0519-1470

0000-0003-1448-3878

0000-0001-6446-5577

E222 - Institut für Wasserbau und Ingenieurhydrologie

E222 - Institut für Wasserbau und Ingenieurhydrologie