||Horizontal variation of the particles flux at microscale and mesoscale on the california abyssal-plain (4100-m depth)
||Crassous Philippe, Khripounoff Alexis
||Oceanologica Acta (0399-1784) (Gauthier-Villars), 1994 , Vol. 17 , N. 2 , P. 227-231
|WOS© Times Cited
||SEDIMENT TRAPS, DEEP SEA, HORIZONTAL FLUX VARIATION
|Résumé en anglais
||Nine sediment traps were assembled in triplicate on a frame and deployed at 100 m above the bottom in the California abyssal plain (4 100 m depth) for ten days. The distances between traps were from 30 cm to 11 km. The main flux measured during this period was 167 mg m(-2) day(-1) with a minimum of 43 mg m(-2) d(-1) and a maximum of 283 mg m(-2) d(-1). This high variation of the particulate flux at the kilometric scale was also observed at a metric scale: for example, the particulate flux measured with one of triplicate traps was equal to 82.3 +/- 46.5 mg m(-2) d(-1) (more than 50 % of variation) between traps distant of less than 1 m. To explain this heterogeneity of the flux measurement, some hypotheses are developed in this study: sampling artefact, different hydrological conditions, heterogeneous production, or distribution of particles in the water column.