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Ocean Inversion Project




Introduction to the Project:

High quality, quantitative estimates of air-sea carbon dioxide flux are critical to interpreting atmospheric carbon dioxide concentration gradients, understanding the global carbon cycle, and predicting climate change. However, significant uncertainties about ocean carbon uptake and the mechanisms that control it persist. Recently, and ocean inverse technique has been explored to estimate preindustrial and anthropogenic ocean carbon exchange using observations of DIC and other trace species in the oceans (Gloor et al., 2003, Gloor et al., 2001) following an inverse technique originally designed to estimate carbon fluxes from atmospheric data. In this technique, ocean transport is described by a series of model-generated basis functions that represent the impact of a unit flux of a dye tracer into a discrete region of the ocean on the concentration of that tracer throughout the ocean.

Comparisons between inverse estimates using three different versions of an ocean general circulation model (OGCM) suggest that uncertainty associated with model transport error is the largest source of error in the ocean inversion (Gloor et al, 2003). The goal of this project is to quantify the robustness and uncertainties of this method by employing Green's functions from a variety of different OGCM's. This web site contains all of the information necessary to generate basis functions for the Ocean Inversion Project as well as results from the project.

Contributions of basis functions are welcome from any modeling group that is interested. If you are new to this project, but would like to participate or need more information, please contact us.

What's New
 

  • Anthropogenic Carbon Paper Submitted on 4/7/2004
  • Upcoming Talks ~ Updated 4/27/2005
  • Updated How-To ~ Added 11/5/2003

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    What you need to Calculate Ocean Basis Functions:

    Early Ocean Inverse Results:
    Links:
    Contact us:
    Sara Fletcher
    Tel: (310) 206-5445
    e-mail: fletcher@igpp.ucla.edu

    Nicolas Gruber
    Tel: (310) 825-4772
    e-mail: ngruber@igpp.ucla.edu

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