Upper-ocean vertical mixing in the Antarctic Polar Front Zone
نویسندگان
چکیده
منابع مشابه
Upper Ocean Mixing Processes
stratiRed (vertical gradients of potential temperature, salinity and potential density, averaged horizontally or in time, are zero). The terminology is most precise in the case of a convectively forced boundary layer. Elsewhere, oceanographers use the term loosely to describe the region of the ocean that responds most directly to surface processes. Late in the day, following periods of strong h...
متن کاملTime and space scales of vertical mixing and advection of ’ phytoplankton in the upper ocean
The dependence of phytoplankton photosynthesis on light intensity may be altered by the range and frequency of variations in light intensity recentlv experienced by the organisms. A major source of the fluctuations in light intensity experienced by phytoplankton in the upper ocean is vertical motion. We estimate time and space scales for \Tertical displacements of phytoplankton caused by turbul...
متن کاملVertical Eddy Mixing in the Tropical Upper Ocean: Its Influence on Zonal Currents
In this study, the authors explore how vertical-mixing parameterizations influence the structure of zonal currents in the eastern equatorial Pacific using an isopycnal ocean model that contains an explicit surface mixed layer. The mixing parameterizations considered are the schemes that depend on the Richardson number (Ri). One of the schemes (the Step scheme) consists of high (nc) and low (nb)...
متن کاملTopographic enhancement of vertical turbulent mixing in the Southern Ocean
It is an open question whether turbulent mixing across density surfaces is sufficiently large to play a dominant role in closing the deep branch of the ocean meridional overturning circulation. The diapycnal and isopycnal mixing experiment in the Southern Ocean found the turbulent diffusivity inferred from the vertical spreading of a tracer to be an order of magnitude larger than that inferred ...
متن کاملRole of vertical migration in biogenic ocean mixing
[1] Recent efforts to empirically measure and numerically simulate biogenic ocean mixing have consistently observed low mixing efficiency. This suggests that the buoyancy flux achieved by swimming animals in the ocean may be negligible in spite of the observed large kinetic energy dissipation rates. The present letter suggests that vertical migration across isopycnals may be necessary in order ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Deep Sea Research Part II: Topical Studies in Oceanography
سال: 2005
ISSN: 0967-0645
DOI: 10.1016/j.dsr2.2005.01.010