摘要: One of the fundamental problems in physical oceanography is explaining observed density structure ocean. The field varies significantly all three spatial directions, and perhaps its most striking feature limitation largest variations to upper 1–2 km increases with depth almost everywhere ocean, but major part this increase occurs kilometer. Figure 4.1.1 from Levitus Atlas (1982) shows basin-averaged profiles for oceans which manifest. rapidly abyssal value a rather short distance compared total In Section 3.1 we described link between motion that implies. two are intimately coupled through advection/diffusion equation thermal wind relation velocity. We also noted Chapter 3 explanation requires dynamical circulation.