Reconstructing the recent carbon cycle from atmospheric CO2, δ13C and O2/N2 observations

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Observational contrains on the global atmospheric co2 budget.

P Tans, I. Fung, T Takahashi (1990)

Observed atmospheric concentrations of CO(2) and data on the partial pressures of CO(2) in surface ocean waters are combined to identify globally significant sources and sinks of CO(2). The atmospheric data are compared with boundary layer concentrations calculated with the transport fields generated by a general circulation model (GCM) for specified source-sink distributions. In the model the observed north-south atmospheric concentration gradient can be maintained only if sinks for CO(2) are greater in the Northern than in the Southern Hemisphere. The observed differences between the partial pressure of CO(2) in the surface waters of the Northern Hemisphere and the atmosphere are too small for the oceans to be the major sink of fossil fuel CO(2). Therefore, a large amount of the CO(2) is apparently absorbed on the continents by terrestrial ecosystems.

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Evidence for interannual variability of the carbon cycle from the National Oceanic and Atmospheric Administration/Climate Monitoring and Diagnostics Laboratory Global Air Sampling Network

Kirk Thoning, Lee S. Waterman, Thomas Conway … (1994)

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Net Exchange of CO2 in a Mid-Latitude Forest.

S Wofsy, M Goulden, J. Munger … (1993)

The eddy correlation method was used to measure the net ecosystem exchange of carbon dioxide continuously from April 1990 to December 1991 in a deciduous forest in central Massachusetts. The annual net uptake was 3.7 +/- 0.7 metric tons of carbon per hectare per year. Ecosystem respiration, calculated from the relation between nighttime exchange and soil temperature, was 7.4 metric tons of carbon per hectare per year, implying gross ecosystem production of 11.1 metric tons of carbon per hectare per year. The observed rate of accumulation of carbon reflects recovery from agricultural development in the 1800s. Carbon uptake rates were notably larger than those assumed for temperate forests in global carbon studies. Carbon storage in temperate forests can play an important role in determining future concentrations of atmospheric carbon dioxide.

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Title: Tellus B: Chemical and Physical Meteorology

Abbreviated Title: Tellus B: Chemical and Physical Meteorology

Publisher: Co-Action Publishing

ISSN (Electronic): 1600-0889

Publication date Created: December 15 2016

Publication date (Print): December 15 2016

Volume: 51

Issue: 2

Pages: 213-232

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DOI: 10.3402/tellusb.v51i2.16273

SO-VID: d02aed0b-9396-46b9-8bc8-b20af8ce077e

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Reconstructing the recent carbon cycle from atmospheric CO2, δ13C and O2/N2 observations

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Most cited references 25

Observational contrains on the global atmospheric co2 budget.

Evidence for interannual variability of the carbon cycle from the National Oceanic and Atmospheric Administration/Climate Monitoring and Diagnostics Laboratory Global Air Sampling Network

Net Exchange of CO2 in a Mid-Latitude Forest.

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