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- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd definition "A three-dimensional tracer transport model is used to investigate the annual cycle of atmospheric CO2 concentration produced by seasonal exchanges with the terrestrial biosphere. The tracer model uses winds generated by a global general circulation model to advect and convect CO2; no explicit diffusion coefficients are employed. A biospheric exchange function constructed from a map of net primary productivity, and Alzvedo's (1982) seasonality of CO2 uptake and release closely simulates the annual cycles at coastal stations. The results show that zonal homogeneity in surface CO2 concentrations can never be achieved at mid-latitudes where the time scale for zonal mixing is longer than the time scale for biospheric exchange. Analysis of the zonal mean balance in the lower troposphere reveals that atmospheric transport processes may later the CO2 response to local biospheric exchanges by 50% or more. Hence year-to-year variation of the annual CO2 cycle may result from the natural variability of the atmospheric circulation as well as from changes in the sources and sinks." @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd id "1653056" @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd path_id 0a184cdc-c074-4946-90a6-02f03c686341 @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd path_id 5cd7da77-cb95-40aa-8775-b6df68e0aa63 @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd path_id f3261de5-34c1-4980-af22-f9d7e7206d12 @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd path_label "Models" @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd path_label "Other" @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd path_label "Platforms" @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd prefLabel "NASA-GISS-3D-Tracer-Transport" @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd reference "Fung, I., K. Prentice, E. Matthews, J. Lerner, and G. Russell, 1983: Three-dimensional tracer model study of atmospheric CO2: Response to seasonal exchanges with the terrestrial biosphere. J. Geophys. Res., 88, 1281-1294, doi:10.1029/JC088iC02p01281." @default.
- 16ddc50b-7bb0-4a13-adef-dbdd5e2e2bcd tag "Platforms" @default.