Mathematics – Logic
Scientific paper
Nov 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3521602a&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 21, CiteID L21602
Mathematics
Logic
9
Atmospheric Composition And Structure: Air/Sea Constituent Fluxes (3339, 4504), Global Change: Biogeochemical Cycles, Processes, And Modeling (0412, 0414, 0793, 4805, 4912), Oceanography: Biological And Chemical: Ecosystems, Structure, Dynamics, And Modeling (0439)
Scientific paper
Large-scale estimates of the Southern Ocean CO2 sink do not adequately resolve the fluxes associated with Antarctic continental shelves. Using a mechanistic three-dimensional biogeochemical model of the Ross Sea, we show that Antarctic shelf waters are a strong sink for CO2 due to high biological productivity, intense winds, high ventilation rates, and extensive winter sea ice cover. Net primary production (NPP) in these waters is ~0.055 Pg C yr-1. Some of this carbon sinks to depth, driving an influx of CO2 of 20-50 g C m-2 yr-1. Although currently unaccounted for, the total atmospheric CO2 sink on the Ross Sea continental shelf of 0.013 Pg C yr-1 is equivalent to 27% of the most recent estimate of the CO2 sink for the entire Southern Ocean. Given these results, these and other highly productive waters around the Antarctic continent need to be included in future budgets of anthropogenic CO2.
Arrigo Kevin R.
Long Matthew
van Dijken Gert
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