Search results
Results From The WOW.Com Content Network
Upwelling intensity depends on wind strength and seasonal variability, as well as the vertical structure of the water, variations in the bottom bathymetry, and instabilities in the currents. In some areas, upwelling is a seasonal event leading to periodic bursts of productivity similar to spring blooms in coastal waters. Wind-induced upwelling ...
Eddy pumping is a component of mesoscale eddy-induced vertical motion. Such vertical motion is caused by the deformation of the pycnocline. It can be conceptualised by assuming that ocean water has a density surface with mean depth averaged over time and space.
On smaller scales, cyclonic winds induce Ekman transport which causes net divergence and upwelling, or Ekman suction, [15] while anti-cyclonic winds cause net convergence and downwelling, or Ekman pumping [20] Ekman transport is also a factor in the circulation of the ocean gyres and garbage patches.
Thus, some water is rising, in what is known as upwelling. Its speeds are very slow even compared to the movement of the bottom water masses. It is therefore difficult to measure where upwelling occurs using current speeds, given all the other wind-driven processes going on in the surface ocean.
[18] [3] The downwelling that forms the NADW is balanced by an equal amount of upwelling. In the western Atlantic, Ekman transport , the increase in ocean-layer mixing caused by wind activity, results in strong upwelling in the Canary Current and the Benguela Current , which are located on the northwest and southwest coasts of Africa.
This phenomenon can cause a tropical storm to escalate into a hurricane or a hurricane to jump one or more categories in less than a day. ... this cool upwelling action is reduced as the storm ...
Castor oil can cause an allergic reaction to the skin called contact dermatitis. If you’ve never used castor oil, Mulhivill recommends doing a patch test. Rub a small amount of oil on your ...
Where significant vertical movement of ocean currents is observed, this is known as upwelling and downwelling. The adjective thermohaline derives from thermo-referring to temperature and -haline referring to salt content, factors which together determine the density of seawater.