Bottom-trapped Subinertial Motions over Midocean Ridges in a Stratified Rotating Fluid
نویسندگان
چکیده
منابع مشابه
Decaying grid turbulence in a rotating stratified fluid
Rotating grid turbulence experiments have been carried out in a stably stratified fluid for relatively large Reynolds numbers (mesh Reynolds numbers up to 18 000). Under the combined effects of rotation and stratification the flow degenerates into quasihorizontal motions. This regime is investigated using a scanning imaging velocimetry technique which provides time-resolved velocity fields in a...
متن کاملSecularly growing oscillations in a stratified rotating fluid
A simple exact solution of the Boussinesq equations of motion, thermal energy, and mass conservation is obtained for an oscillatory flow regime in a stably stratified rotating fluid. The flow is unbounded and characterized by velocity gradients that vary with time but are spatially uniform—the basic state of Craik-Criminale flows. The solution describes an oscillatory convergent-divergent flow ...
متن کاملEffect of paleoseawater composition on hydrothermal exchange in midocean ridges.
Variations in the Mg, Ca, Sr, and SO4 concentrations of paleoseawater can affect the chemical exchange between seawater and oceanic basalt in hydrothermal systems at midocean ridges (MOR). We present a model for evaluating the nature and magnitude of these previously unappreciated effects, using available estimates of paleoseawater composition over Phanerozoic time as inputs and 87Sr/86Sr of op...
متن کاملBottom dissipation of subinertial currents at the Atlantic zonal boundaries
[1] Estimates of the dissipation of subinertial currents due to bottom boundary layer drag at the eastern and western boundaries of the North Atlantic ocean, between 15 N and 60 N, are computed using data from the world’s largest archive of ocean current meter time series. We show from these data that a significant proportion of such loss in this region is due to dissipation at the western boun...
متن کاملGlobal Observations of Ocean-Bottom Subinertial Current Dissipation
Quadratic bottom boundary layer drag is a potentially significant source of energy dissipation in the deep ocean. This study presents a new estimate of the energy dissipated by this process, using results from the world’s largest archive of ocean current meter time series and focusing strongly upon the potential uncertainties in this calculation. Two methods are used, one based on a simple divi...
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: Journal of Physical Oceanography
سال: 1993
ISSN: 0022-3670,1520-0485
DOI: 10.1175/1520-0485(1993)023<0566:btsmom>2.0.co;2