Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5755934 | Palaeogeography, Palaeoclimatology, Palaeoecology | 2017 | 13 Pages |
Abstract
The meridional and zonal gradients in sea-surface and subsurface ocean properties within the West Pacific Warm Pool reveal a pronounced change after 1.5Â Ma, leading to a more southward position of the warm South Pacific Convergence Zone between ~Â 1.35-0.9Â Ma and ~Â 0.75-0.5Â Ma. Synchronous to the changes in the upper ocean, the deeper water masses experienced high amplitude variations in temperature, most prominently since ~Â 1.5Â Ma. This and the dynamically changing thermocline were most likely associated to the impact of southern-sourced mode waters, which might have developed coincidently with the emergence of the East Pacific Cold Tongue and high latitude sea-surface cooling.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth-Surface Processes
Authors
Jacek Raddatz, Dirk Nürnberg, Ralf Tiedemann, Nadine Rippert,