Now showing items 1-7 of 7

  • Atmospheric carbon dioxide variability in the Community Earth System Model : evaluation and transient dynamics during the twentieth and twenty-first centuries 

    Keppel-Aleks, Gretchen; Randerson, James T.; Lindsay, Keith; Stephens, Britton B.; Moore, J. Keith; Doney, Scott C.; Thornton, Peter E.; Mahowald, Natalie M.; Hoffman, Forrest M.; Sweeney, Colm; Tans, Pieter P.; Wennberg, Paul O.; Wofsy, Steven C. (American Meteorological Society, 2013-07-01)
    Changes in atmospheric CO2 variability during the twenty-first century may provide insight about ecosystem responses to climate change and have implications for the design of carbon monitoring programs. This paper describes ...
  • Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks : results from an atmosphere-ocean general circulation model 

    Thornton, Peter E.; Doney, Scott C.; Lindsay, Keith; Moore, J. Keith; Mahowald, Natalie M.; Randerson, James T.; Fung, Inez Y.; Lamarque, J.-F.; Feddema, J. J.; Lee, Y.-H. (Copernicus Publications on behalf of the European Geosciences Union, 2009-10-08)
    Inclusion of fundamental ecological interactions between carbon and nitrogen cycles in the land component of an atmosphere-ocean general circulation model (AOGCM) leads to decreased carbon uptake associated with CO2 ...
  • Contribution of ocean, fossil fuel, land biosphere, and biomass burning carbon fluxes to seasonal and interannual variability in atmospheric CO2 

    Nevison, Cynthia D.; Mahowald, Natalie M.; Doney, Scott C.; Lima, Ivan D.; van der Werf, Guido R.; Randerson, James T.; Baker, David F.; Kasibhatla, Prasad S.; McKinley, Galen A. (American Geophysical Union, 2008-02-12)
    Seasonal and interannual variability in atmospheric carbon dioxide (CO2) concentrations was simulated using fluxes from fossil fuel, ocean and terrestrial biogeochemical models, and a tracer transport model with time-varying ...
  • Desert dust and anthropogenic aerosol interactions in the Community Climate System Model coupled-carbon-climate model 

    Mahowald, Natalie M.; Lindsay, Keith; Rothenberg, D.; Doney, Scott C.; Moore, J. Keith; Thornton, Peter E.; Randerson, James T.; Jones, C. D. (Copernicus Publications on behalf of the European Geosciences Union, 2011-02-15)
    Coupled-carbon-climate simulations are an essential tool for predicting the impact of human activity onto the climate and biogeochemistry. Here we incorporate prognostic desert dust and anthropogenic aerosols into the ...
  • Precision requirements for space-based XCO2 data 

    Miller, C. E.; Crisp, D.; DeCola, P. L.; Olsen, S. C.; Randerson, James T.; Michalak, Anna M.; Alkhaled, A.; Rayner, Peter; Jacob, D. J.; Suntharalingam, P.; Jones, D. B. A.; Denning, A. S.; Nicholls, M. E.; Doney, Scott C.; Pawson, S.; Boesch, H.; Connor, B. J.; Fung, Inez Y.; O'Brien, D.; Salawitch, R. J.; Sander, S. P.; Sen, B.; Tans, Pieter P.; Toon, G. C.; Wennberg, Paul O.; Wofsy, Steven C.; Yung, Y. L.; Law, R. M. (American Geophysical Union, 2007-05-26)
    Precision requirements are determined for space-based column-averaged CO2 dry air mole fraction (XCO2) data. These requirements result from an assessment of spatial and temporal gradients in XCO2, the relationship between ...
  • Preindustrial-control and twentieth-century carbon cycle experiments with the Earth System Model CESM1(BGC) 

    Lindsay, Keith; Bonan, Gordon B.; Doney, Scott C.; Hoffman, Forrest M.; Lawrence, David M.; Long, Matthew C.; Mahowald, Natalie M.; Moore, J. Keith; Randerson, James T.; Thornton, Peter E. (American Meteorological Society, 2014-12-15)
    Version 1 of the Community Earth System Model, in the configuration where its full carbon cycle is enabled, is introduced and documented. In this configuration, the terrestrial biogeochemical model, which includes ...
  • Separating the influence of temperature, drought, and fire on interannual variability in atmospheric CO2 

    Keppel-Aleks, Gretchen; Wolf, Aaron S.; Mu, Mingquan; Doney, Scott C.; Morton, Douglas C.; Kasibhatla, Prasad S.; Miller, John B.; Dlugokencky, Edward J.; Randerson, James T. (John Wiley & Sons, 2014-11-19)
    The response of the carbon cycle in prognostic Earth system models (ESMs) contributes significant uncertainty to projections of global climate change. Quantifying contributions of known drivers of interannual variability ...