Webb D J, Suginohara N
Southampton Oceanography Centre, Empress Dock, Southampton SO14 3ZH, UK.
Nature. 2001 Jan 4;409(6816):37. doi: 10.1038/35051171.
The thermohaline circulation of the ocean results primarily from downwelling at sites in the Nordic and Labrador Seas and upwelling throughout the rest of the ocean. The latter is often described as being due to breaking internal waves. Here we reconcile the difference between theoretical and observed estimates of vertical mixing in the deep ocean by presenting a revised view of the thermohaline circulation, which allows for additional upwelling in the Southern Ocean and the separation of the North Atlantic Deep Water cell from the Antarctic Bottom Water cell. The changes also mean that much less wind and tidal energy needs to be dissipated in the deep ocean than was originally thought.
海洋的热盐环流主要源于北欧海域和拉布拉多海的下沉以及海洋其他区域的上升流。后者通常被认为是由内波破碎引起的。在此,我们通过提出一种热盐环流的修正观点,协调了深海垂直混合的理论估计与观测估计之间的差异,该观点考虑了南大洋额外的上升流以及北大西洋深层水团与南极底层水团的分离。这些变化还意味着,与原先的想法相比,深海中需要耗散的风能和潮汐能要少得多。