234Th and particulate fluxes in the Kara Sea in October 1993

The mean residence time of 234Th associated with suspended matter in the Kara Sea was calculated from distributions of dissolved and suspended 234Th. Integral particulate fluxes at different levels were estimated for two stations. The flux increases only in the pycnocline; below it changes insignifi...

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Bibliographic Details
Main Authors: Kuptsov, Vladimir M, Lisitzin, Alexander P, Shevchenko, Vladimir P
Format: Other/Unknown Material
Language:English
Published: PANGAEA 1995
Subjects:
Archive of Ocean Data
ARCOD
DM49
DM49-4375TB1
DM49-4382T
DM49-4382TB1
DM49-4386T
DM49-4389T
DM49-4389TB1
DM49-4394T
DM49-4394TB1
DM49-4395TB1
DM49-4396TB1
DM49-4397TB1
DM49-4398TB1
DM49-4399TB1
DM49-4400TB1
DM49-4415T
Dmitry Mendeleev
Kara Sea
SPASIBAIII
TRANS150
Transparent bottle 150L
Trap
sediment
TRAPS
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.727590
https://doi.org/10.1594/PANGAEA.727590
Description
Summary:The mean residence time of 234Th associated with suspended matter in the Kara Sea was calculated from distributions of dissolved and suspended 234Th. Integral particulate fluxes at different levels were estimated for two stations. The flux increases only in the pycnocline; below it changes insignificantly. Two maxima of differential fluxes are noted in vertical profiles: in the surface layer where primary production is maximal, and in the interface layer where zooplankton realizing active transport of suspended matter is usually concentrated. Differential fluxes were determined at 10 stations; their space distribution is controlled by primary production, which depends usually on turbidity of river water in estuaries.

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