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Tidal mixing and the Meridional Overturning Circulation from the Last Glacial Maximum.

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Tidal mixing and the Meridional Overturning Circulation from the Last Glacial Maximum. / Green, J.A.; Green, C.L.; Bigg, G.R. et al.
In: Geophysical Research Letters, Vol. 36, No. 15, 16.08.2009.

Research output: Contribution to journal › Article › peer-review

HarvardHarvard

Green, JA, Green, CL, Bigg, GR, Rippeth, TP, Scourse, JD & Uehara, K 2009, 'Tidal mixing and the Meridional Overturning Circulation from the Last Glacial Maximum.', Geophysical Research Letters, vol. 36, no. 15. https://doi.org/10.1029/2009GL039309

APA

Green, J. A., Green, C. L., Bigg, G. R., Rippeth, T. P., Scourse, J. D., & Uehara, K. (2009). Tidal mixing and the Meridional Overturning Circulation from the Last Glacial Maximum. Geophysical Research Letters, 36(15). https://doi.org/10.1029/2009GL039309

CBE

Green JA, Green CL, Bigg GR, Rippeth TP, Scourse JD, Uehara K. 2009. Tidal mixing and the Meridional Overturning Circulation from the Last Glacial Maximum. Geophysical Research Letters. 36(15). https://doi.org/10.1029/2009GL039309

MLA

Green, J.A. et al. "Tidal mixing and the Meridional Overturning Circulation from the Last Glacial Maximum.". Geophysical Research Letters. 2009. 36(15). https://doi.org/10.1029/2009GL039309

VancouverVancouver

Green JA, Green CL, Bigg GR, Rippeth TP, Scourse JD, Uehara K. Tidal mixing and the Meridional Overturning Circulation from the Last Glacial Maximum. Geophysical Research Letters. 2009 Aug 16;36(15). Epub 2009 Aug 4. doi: 10.1029/2009GL039309

Author

Green, J.A. ; Green, C.L. ; Bigg, G.R. et al. / Tidal mixing and the Meridional Overturning Circulation from the Last Glacial Maximum. In: Geophysical Research Letters. 2009 ; Vol. 36, No. 15.

RIS

TY - JOUR

T1 - Tidal mixing and the Meridional Overturning Circulation from the Last Glacial Maximum.

AU - Green, J.A.

AU - Green, C.L.

AU - Bigg, G.R.

AU - Rippeth, T.P.

AU - Scourse, J.D.

AU - Uehara, K.

PY - 2009/8/16

Y1 - 2009/8/16

N2 - [1] Using a global tidal model it is shown that the supply of tidal energy to the deep ocean was larger during the Last Glacial Maximum (LGM; 18,000–22,000 years BP). The results were used to modify the rate of vertical mixing in a coupled ocean-atmosphere model set up for the present and LGM oceans. The increased levels of mechanical energy during the LGM were countered by a fresher upper North Atlantic, which led to a reduced circulation and deep water formation in spite of a trebling of the implicit mixing energy. This identifies the significance of accurately representing vertical mixing in climate models to estimate the recovery time-scales and timings of rapid catastrophic paleoceanographic events. From the estimated levels of implicit energy in the vertical mixing scheme an amendment to diffusivity based mixing schemes is suggested.

AB - [1] Using a global tidal model it is shown that the supply of tidal energy to the deep ocean was larger during the Last Glacial Maximum (LGM; 18,000–22,000 years BP). The results were used to modify the rate of vertical mixing in a coupled ocean-atmosphere model set up for the present and LGM oceans. The increased levels of mechanical energy during the LGM were countered by a fresher upper North Atlantic, which led to a reduced circulation and deep water formation in spite of a trebling of the implicit mixing energy. This identifies the significance of accurately representing vertical mixing in climate models to estimate the recovery time-scales and timings of rapid catastrophic paleoceanographic events. From the estimated levels of implicit energy in the vertical mixing scheme an amendment to diffusivity based mixing schemes is suggested.

KW - GEOSCIENCES

KW - MULTIDISCIPLINARY

U2 - 10.1029/2009GL039309

DO - 10.1029/2009GL039309

M3 - Article

VL - 36

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 15

ER -