Carbon storage on exposed continental shelves during the glacial-interglacial transition

Details Carbon storage on exposed continental shelves during the glacial-interglacial transition Carbon storage on exposed continental shelves during the glacial-interglacial transition

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3308703m&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 8, CiteID L08703

Physics

7

Biogeosciences: Carbon Cycling (4806), Biogeosciences: Paleoclimatology And Paleoceanography (3344, 4900), Global Change: Biogeochemical Cycles, Processes, And Modeling (0412, 0414, 0793, 4805, 4912), Global Change: Global Climate Models (3337, 4928), Global Change: Land Cover Change

Scientific paper

We present analyses of new and previously published estimates of total (vegetation plus soil) carbon storage on exposed continental shelves during the LGM. Carbon stock estimates from environmental reconstructions vary from 113 to 202 Pg C. Estimates from vegetation models range from 112 to 323 Pg C. After standardization of exposed shelf area by a topographic model the range of best estimates for reconstructions and models converge to 182-266 Pg C. Up to ~10000 years before present, the time dependent estimate of the amount of inundated carbon is in good qualitative agreement with the increase in the atmospheric carbon reservoir. Given its relative size compared to the change in terrestrial carbon storage and the potential link between inundated carbon and atmospheric CO2 increase, the carbon stock of the LGM exposed shelves cannot be ignored and merits more detailed attention from modelling and reconstruction efforts.

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