Consulta: creatorFacets:"Lastras, G."
Registros recuperados: 2
Data/hora: 16/06/2024 20:30:11

Impact of open-ocean convection on particle fluxes and sediment dynamics in the deep margin of the Gulf of Lions
Provedor de dados: 5
Autores: Stabholz, M.; Durrieu De Madron, X.; Canals, M.; Khripounoff, Alexis; Taupier-letage, Isabelle; Testor, Pierre; Heussner, S.; Kerherve, P.; Delsaut, N.; Houpert, Loic; Lastras, G.; Dennielou, Bernard.
The deep outer margin of the Gulf of Lions and the adjacent basin, in the western Mediterranean Sea, are regularly impacted by open-ocean convection, a major hydrodynamic event responsible for the ventilation of the deep water in the western Mediterranean Basin. However, the impact of open-ocean convection on the flux and transport of particulate matter remains poorly understood. The variability of water mass properties (i.e., temperature and salinity), currents, and particle fluxes were monitored between September 2007 and April 2009 at five instrumented mooring lines deployed between 2050 and 2350-m depth in the deepest continental margin and adjacent basin. Four of the lines followed a NW-SE transect, while the fifth one was located on a sediment wave...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00125/23654/21571.pdf

Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea
Provedor de dados: 5
Autores: Payo-payo, Marta; Silva Jacinto, Ricardo; Lastras, G.; Rabineau, Marina; Puig, P.; Martin, J.; Canals, M.; Sultan, Nabil.
Bottom trawling leads to recurrent sediment resuspension events over fishing grounds. Recent studies have shown how bottom trawling can drive seascape reshaping at large spatial scales and enhance sediment transport in submarine canyons, which subsequently impacts deep-sea ecosystems. Present knowledge on the transfer and accumulation of sediment flows triggered by bottom trawling is based on localized and infrequent measurements whilst a more complete picture of the process is needed. The present work focuses on the modeling of sediment transport and accumulation resulting from trawling activities in La Fonera submarine canyon, northwestern Mediterranean Sea, thus contributing to an improved assessment of trawling impacts. Based on mooring data within a...
Tipo: Text
Palavras-chave: Bottom trawling; Inverse model; Modeling; Sediment transport; Submarine canyon; Turbidity currents.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00374/48549/48862.pdf