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1 Estimates of Ocean Mixing Coefficients
2
3 D. Stammer for the ECCO Consortium.
4
5 The global ECCO synthesis procedure is used to estimate horizontal
6 and vertical ocean mixing coefficients (viscosity and diffusivity)
7 that are consistent with WOCE data sets, the atmospheric forcing fields
8 and the model physics. Those coefficients are estimated as time-constant
9 but geographically varying fields and are adjusted along with surface
10 momentum and buoyancy forcing so as to bring the model into consistency
11 with global data sets over the period 1992 through 2000. Information
12 is provided about the estimation procedure and and the resulting
13 changes of the mixing coefficients is being described.
14 While the estimated coefficients lead to a reduced model drift, their
15 physical interpretation in terms of eddy transfers is not always as
16 expected.

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