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gfdl's home page > gfdl on-line bibliography > 1996: Journal of Physical Oceanography, 26(6), 1106-1110

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Toggweiler, J. R., E. Tziperman, Y. Feliks, K. Bryan, S. M. Griffies, and B. Samuels, 1996: Reply. Journal of Physical Oceanography, 26(6), 1106-1110
Abstract: The comment by Rahmstorf suggests that a numerical problem in Tziperman et al. (1994, TTFB) leads to a noisy E - P field that invalidates TTFB's conclusions. The authors eliminate the noise, caused by the Fourier filtering used in the model, and show that TTFB's conclusions are still valid. Rahmstorf questions whether a critical value in the freshwater forcing separates TTFB's stable and unstable runs. By TTFB's original definition, the unstable runs in both TTFB and in Rahmstorf's comment have most definitely crossed a stability transition point upon switching to mixed boundary conditions. Rahmstorf finally suggests that the instability mechanism active in TTFB is a fast convective mechanism, not the slow advective mechanism proposed in TTFB. The authors show that the timescale of the instability is, in fact, consistent with the advective mechanism.
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