Dynamics of the oceanic general circulation: the potential vorticity field
Dynamics of the oceanic general circulation: the potential vorticity field
复制标题
海洋环流动力学：位涡场
作者：
W. R. Holland;T. Keffer;P. Rhines
海洋的环流是由涡度、温度和盐度决定的。大尺度环流理论对位涡q场有很强的约束。使用位涡场作为比较点，对北大西洋和北太平洋进行的新的计算和观测显示出很强的相似性。特别是，观测结果可以用环流来模拟，在环流周围，地转等值线变形以跟随环流，在环流内，q是均匀的。具有相对低位涡的注入沃茨的影响是显著的。
The general circulation of the oceans is determined by vorticity, temperature and salinity. The theory of large-scale circulation puts a strong constraint on the fields of potential vorticity,q. New calculations and observations of the North Atlantic and North Pacific, using the field of potential vorticity as a point of comparison, reveal strong similarities. In particular, the observations can be modelled by gyres around which geostrophic contours deform to follow the circulation and within whichqis uniform. The effects of injected waters with relatively low potential vorticity are significant.