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gfdl's home page > gfdl on-line bibliography > 1995: Dahlem Workshop on Upwelling in the Ocean: Modern Processes and Ancient Records, 313-320.
Physical estimates of global new production: The upwelling contribution
| Chavez, F. P., and J. R. Toggweiler, 1995: Physical estimates of global new production: The upwelling contribution. In Dahlem Workshop on Upwelling in the Ocean: Modern Processes and Ancient Records, Chichester: John Wiley & Sons Ltd., 313-320. |
| Abstract: We have estimated the amount of nitrate available to support new production for component regions of the global ocean according to its physical supply. We differentiate new production between two components: one in which nitrate input is directly attributed to wind-driven upwelling and another in which nitrate input is supported by vertical mixing or other processes. Global new production according to our estimates and literature sources amounts to about 7.2 gigatons of carbon per year (GtCy-1). This is towards the lower end of the range or previous global estimates. The fraction supported directly by upwelling amounts to 4.8 GtCy-1, or 67% of the total. |