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ABSTRACT

Koster et al. 1989

Koster, R.D., W.S. Broecker, J. Jouzel, R.J. Suozzo, G.L. Russell, D. Rind, and J.C.G. White, 1989: The global geochemistry of bomb-produced tritium: General circulation model compared to available observations and traditional interpretations. J. Geophys. Res., 94, 18305-18326.

Observational evidence suggests that of the tritium produced during nuclear boomb tests that has already reached the ocean, more than twice as much arrived through vapor impact as through precipitation. In the present study, the Goddard Institute for Space Studies 8°×10° atmospheric general circulation model is used to simulate tritium transport from the upper atmosphere to the ocean. The simulation indicates that tritium delivery to the ocean via vapor impact is about equal to that via precipitation. The model result is relatively insensitive to several imposed changes in tritium source location, in model parameterizations, and in model resolution. Possible reasons for the discrepancy are explored.

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