In:
Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 106, No. C12 ( 2001-12-15), p. 31189-31196
Abstract:
An attempt is made to quantify the biological carbon pump in Arabian Sea subsurface waters by estimating the total concentrations of remineralized dissolved inorganic carbon (DIC rem ) and its water column inventory. The influence of different sets of −ΔO 2 /ΔC org ratios, which are either constant or variable with depth, on the estimate is assessed. Throughout the water column the horizontally mapped DIC rem concentrations increase northward due to enlarged export fluxes of organic matter and subsequently enhanced remineralization processes as well as to the accumulation of remineralization products along the trajectory path of the water masses ventilating the Arabian Sea from the southern Indian Ocean. The choice of the remineralization ratios generates significant differences in the DIC rem concentrations at specific depth horizons. The DIC rem inventory of the Arabian Sea between 500 and 4500 m in the years 1995–1997 amounts to ∼39–44 Gt C depending on the applied remineralization ratios.
Type of Medium:
Online Resource
ISSN:
0148-0227
DOI:
10.1029/2000JC000427
Language:
English
Publisher:
American Geophysical Union (AGU)
Publication Date:
2001
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