The impact of changes in the ocean's biological pump on atmospheric CO2
نویسندگان
چکیده
The impact on atmospheric CO2 of iron fertilization induced changes in the ocean’s biological pump X. Jin, N. Gruber, H. Frenzel, S. C. Doney, and J. C. McWilliams Institute of Geophysics and Planetary Physics (IGPP), UCLA, Los Angeles, CA 90095, USA Environmental Physics, Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, Zürich, Switzerland IGPP and Department of Atmospheric and Oceanic Sciences, UCLA, Los Angeles, CA 90095, USA Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543-1543, USA Received: 12 October 2007 – Accepted: 12 October 2007 – Published: 19 October 2007 Correspondence to: X. Jin ([email protected])
منابع مشابه
Biological and physical controls in the Southern Ocean on past millennial-scale atmospheric CO2 changes
Millennial-scale climate changes during the last glacial period and deglaciation were accompanied by rapid changes in atmospheric CO2 that remain unexplained. While the role of the Southern Ocean as a 'control valve' on ocean-atmosphere CO2 exchange has been emphasized, the exact nature of this role, in particular the relative contributions of physical (for example, ocean dynamics and air-sea g...
متن کاملThe impact on atmospheric CO2 of iron fertilization induced changes in the ocean’s biological pump
Using numerical simulations, we quantify the impact of changes in the ocean’s biological pump on the air-sea balance of CO2 by fertilizing a small surface patch in the high-nutrient, low-chlorophyll region of the eastern tropical Pacific with iron. Decade-long fertilization experiments are conducted in a basin-scale, eddy-permitting coupled physical/biogeochemical/ecological model. In contrast ...
متن کاملImpact of oceanic circulation on biological carbon storage in the 1 ocean and atmospheric p CO
We use both theory and ocean biogeochemistry models to examine the role 3 of the soft-tissue biological pump in controlling atmospheric CO2. We demonstrate that 4 atmospheric CO2 can be simply related to the amount of inorganic carbon stored in the 5 ocean by the soft tissue pump, which we term (OCSsoft). OCSsoft is linearly related 6 to the inventory of remineralized nutrientwhich in turn is j...
متن کاملImpact of oceanic circulation on biological carbon storage in the ocean and atmospheric pCO2
[1] We use both theory and ocean biogeochemistry models to examine the role of the soft-tissue biological pump in controlling atmospheric CO2. We demonstrate that atmospheric CO2 can be simply related to the amount of inorganic carbon stored in the ocean by the soft-tissue pump, which we term (OCSsoft). OCSsoft is linearly related to the inventory of remineralized nutrient, which in turn is jus...
متن کاملRadiocarbon constraints on the glacial ocean circulation and its impact on atmospheric CO2
While the ocean's large-scale overturning circulation is thought to have been significantly different under the climatic conditions of the Last Glacial Maximum (LGM), the exact nature of the glacial circulation and its implications for global carbon cycling continue to be debated. Here we use a global array of ocean-atmosphere radiocarbon disequilibrium estimates to demonstrate a ∼689±53 14C-yr...
متن کامل