Empirical and mechanistic models for the particle export ratio

  title={Empirical and mechanistic models for the particle export ratio},
  author={John P. Dunne and Robert A. Armstrong and Anand Gnanadesikan and Jorge L. Sarmiento},
  journal={Global Biogeochemical Cycles},
We present new empirical and mechanistic models for predicting the export of organic carbon out of the surface ocean by sinking particles. To calibrate these models, we have compiled a synthesis of field observations related to ecosystem size structure, primary production and particle export from around the globe. The empirical model captures 61% of the observed variance in the ratio of particle export to primary production (the pe ratio) using sea‐surface temperature and chlorophyll… 

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