Autre(s) titre(s) |
Horizontal variation of the particles flux at microscale and mesoscale on the california abyssal-plain (4100-m depth) |
Type |
Article |
Date |
1994 |
Langue(s) |
Français |
Auteur(s) |
Crassous Philippe, Khripounoff Alexis |
Source |
Oceanologica Acta (0399-1784) (Gauthier-Villars), 1994 , Vol. 17 , N. 2 , P. 227-231 |
WOS© Times Cited |
4 |
Keyword(s) |
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. |
Texte intégral |
Fichier |
Pages |
Taille |
Accès |
18499.pdf |
5 |
387 KB |
Libre accès |
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