Marine Biodiversity and Ecosystem Functioning
EU Network of Excellence

 
Main Menu

· Home
· Contacts
· Data Systems
· Documents
· FAQ
· Links
· MarBEF Open Archive
· Network Description
· Outreach
· Photo Gallery
· Quality Assurance
· Register of Resources
· Research Projects
· Rules and Guidelines
· Training
· Wiki
· Worldconference

 

Register of Resources (RoR)

 People  |  Datasets  |  Literature  |  Institutes  |  Projects 

[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [344617]
Numerical simulation of deep-sea sediment transport induced by a dredge experiment in the northeastern Pacific Ocean
Purkiani, K.; Gillard, B.; Paul, A.; Haeckel, M.; Haalboom, S.; Greinert, J.; de Stigter, H.; Hollstein, M.; Baeye, M.; Vink, A.; Thomsen, L.; Schulz, M. (2021). Numerical simulation of deep-sea sediment transport induced by a dredge experiment in the northeastern Pacific Ocean. Front. Mar. Sci. 8: 719463. https://dx.doi.org/10.3389/fmars.2021.719463

Additional data:
In: Frontiers in Marine Science. Frontiers Media: Lausanne. e-ISSN 2296-7745
Peer reviewed article  

Available in  Authors 

Keyword
    Marine/Coastal
Author keywords
    dredge experiment; MITgcm; deep-sea mining; redeposition; sensor array; deep-sea sediment transport

Authors  Top 
  • Purkiani, K.
  • Gillard, B.
  • Paul, A.
  • Haeckel, M.
  • Haalboom, S.
  • Greinert, J.
  • de Stigter, H.
  • Hollstein, M.
  • Baeye, M.
  • Vink, A.
  • Thomsen, L.
  • Schulz, M.

Abstract
    Predictability of the dispersion of sediment plumes induced by potential deep-sea mining activities is still very limited due to operational limitations on in-situ observations required for a thorough validation and calibration of numerical models. Here we report on a plume dispersion experiment carried out in the German license area for the exploration of polymetallic nodules in the northeastern tropical Pacific Ocean in 4,200 m water depth. The dispersion of a sediment plume induced by a small-scale dredge experiment in April 2019 was investigated numerically by employing a sediment transport module coupled to a high-resolution hydrodynamic regional ocean model. Various aspects including sediment characteristics and ocean hydrodynamics were examined to obtain the best statistical agreement between sensor-based observations and model results. Results show that the model is capable of reproducing suspended sediment concentration and redeposition patterns observed during the dredge experiment. Due to a strong southward current during the dredging, the model predicts no sediment deposition and plume dispersion north of the dredging tracks. The sediment redeposition thickness reaches up to 9 mm directly next to the dredging tracks and 0.07 mm in about 320 m away from the dredging center. The model results suggest that seabed topography and variable sediment release heights above the seafloor cause significant changes especially for the low sedimentation pattern in the far-field area. Near-bottom mixing is expected to strongly influence vertical transport of suspended sediment.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors 


If any information here appears to be incorrect, please contact us
Back to Register of Resources
 
Quick links

MarBEF WIKI

Erasmus Mundus Master of Science in Marine Biodiversity and Conservation (EMBC)
Outreach

Science
Responsive Mode Programme (RMP) - Marie Nordstrom, copyright Aspden Rebecca

WoRMS
part of WoRMS logo

ERMS 2.0
Epinephelus marginatus Picture: JG Harmelin

EurOBIS

Geographic System

Datasets

 


Web site hosted and maintained by Flanders Marine Institute (VLIZ) - Contact data-at-marbef.org