Upper ocean export of particulate organic carbon in the Arabian Sea derived from thorium-234
K Buesseler, L Ball, J Andrews… - Deep Sea Research …, 1998 - Elsevier
Thorium-234 is used in the Arabian Sea as a tracer of sinking particle fluxes. Samples were
collected from January to August 1995 on four cruises during the Northeast Monsoon, the
Spring Intermonsoon and the mid-and late-Southwest Monsoon periods. In this study, 234Th
activity distributions are used to quantify the 234Th flux on sinking particles, and the
measured ratio of particulate organic carbon (POC) to particulate 234Th is used to convert
from 234Th to POC export at 100m. The calculated POC fluxes range from< 1 to> …
collected from January to August 1995 on four cruises during the Northeast Monsoon, the
Spring Intermonsoon and the mid-and late-Southwest Monsoon periods. In this study, 234Th
activity distributions are used to quantify the 234Th flux on sinking particles, and the
measured ratio of particulate organic carbon (POC) to particulate 234Th is used to convert
from 234Th to POC export at 100m. The calculated POC fluxes range from< 1 to> …
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