Natural atmospheric 14C variation and the Suess effect

  title={Natural atmospheric 14C variation and the Suess effect},
  author={Pieter P. Tans and A. F. M. de Jong and Willem G. Mook},
THE dilution of the atmospheric 14CO2 concentration by large amounts of fossil-fuel derived CO2 which do not contain any 14C is commonly called the Suess effect. Its magnitude can be calculated with the same geochemical models as the global carbon cycle that also predict the future rise of atmospheric CO2 to be caused by the combustion of fossil fuels. Validation of a CO2 predictive model with the Suess effect 14C data is important because these two phenomena have a common cause, and therefore… 
An anomalous Suess effect above Europe
The major impact that man is likely to have on climate comes from the artificial increase of the atmospheric CO2 level, caused by the combustion of fossil fuels1,2. To predict its magnitude, the
Atmospheric14C changes resulting from fossil fuel CO2 release and cosmic ray flux variability
A high-precision tree-ring record of the atmospheric14C levels between 1820 and 1954 is presented. Good agreement is obtained between measured and model calculated 19th and 20th century atmospheric
The carbon cycle and its perturbation by man
Calibration and validation of carbon cycle models is mainly based on isotope data of the steady state of the system as well as its responses to natural and anthropogenic disturbances. The progress in
Observations of atmospheric 14CO2 at Anmyeondo GAW station, South Korea: implications for fossil fuel CO2 and emission ratios
Abstract. To understand the Korean Peninsula's carbon dioxide (CO 2 ) emissions and sinks as well as those of the surrounding region, we used 70 flask-air samples collected during May 2014 to August
Dilution of Atmospheric Radiocarbon CO2 by Fossil Fuel Emissions
Post bomb period data for 14C in atmospheric carbon dioxide from seven measurement stations are available in small samples up to and including the year 2007. They do not support the theory that
The impact of atmospheric pCO2 on carbon isotope ratios of the atmosphere and ocean
It is well known that the equilibration timescale for the isotopic ratios 13C/12C and 14C/12C in the ocean mixed layer is on the order of a decade, 2 orders of magnitude slower than for oxygen. Less
On the Atmospheric Residence Time of Anthropogenically Sourced Carbon Dioxide
A recent paper by Essenhigh (Essenhigh, R. H.Energy Fuels 2009, 23, 2773−2784) (hereafter ES09) concludes that the relatively short residence time of CO2 in the atmosphere (5–15 years) establishes
The atmospheric signature of carbon capture and storage
  • R. Keeling, A. Manning, M. Dubey
  • Environmental Science, Medicine
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2011
Using simple models and calculations, this work estimates the impact of CCS or leakage on regional atmospheric composition and the possible impact on global atmospheric composition, assuming that the technology is widely adopted.
Changes to Carbon Isotopes in Atmospheric CO2 Over the Industrial Era and Into the Future
Simulations of future δ13CO2 and Δ14CO2 for six scenarios based on the shared socioeconomic pathways (SSPs) from the 6th Coupled Model Intercomparison Project (CMIP6) suggest that the decline in δ 13CO2 since the preindustrial period is less than some prior estimates.
Observations of atmospheric 14CO2 at Anmyeondo GAW station, South Korea: implications for fossil fuel CO2 and emission ratios
To understand the Korean Peninsula’s carbon dioxide (CO2) emissions and sinks as well as those of the surrounding region, we used 70 flask-air samples collected during May 2014 to August 2016 at


A box diffusion model to study the carbon dioxide exchange in nature
Phenomena related to the natural carbon cycle as the 14 C distribution between atmosphere and ocean and the atmospheric response to the input of fossil fuel CO 2 and of 14 C produced in nuclear
Chemical pretreatment and radial flow of 14C in tree rings
THE prospect of very large increases in atmospheric CO2 concentrations by fossil fuel combustion during the next century has prompted an active interest in CO2 levels of the last century. One way of
On the magnitude of the 11-year radiocarbon cycle
Radiocarbon and stable carbon isotope analyses of annual tree rings for the 15-yr period from A.D. 1940 through 1954 do not confirm the existence of an 11-yr cyclical change in the 14 C activity of
Industrial production of carbon dioxide from fossil fuels and limestone
The release of carbon dioxide into the atmosphere by the burning of fossil fuels is significantly altering the carbon cycle by adding to the amount of carbon in the atmosphere and in the more rapidly