Origin of ocean currents

In contrast to wind-driven surface currents deep-ocean currents are caused by differences in water density. A lthough the approximate position and strength of the main ocean currents have been known for upwards of two hundred years it is only in the last few decades that oceanographers have attempted to explain them on the basis of sound physical theory.

The currents caused by returning tides are called ebb currents.

Origin of ocean currents. A lthough the approximate position and strength of the main ocean currents have been known for upwards of two hundred years it is only in the last few decades that oceanographers have attempted to explain them on the basis of sound physical theory. For many years the progress of oceanography was hampered by the lack of sufficient experimental data. Today much new information.

The factors responsible for origin of ocean currents may be discussed as. Planetary winds are the principal cause of the origin of ocean currents. Such winds drive surface water.

Difference of density and salinity. Difference of density and salinity in ocean water motivates denser. Characteristics of Ocean Currents arise due to the interplay of the above-mentioned factors.

The general movement of the currents in the northern hemisphere is clockwise and in the southern hemisphere anti-clockwise. This is due to the Coriolis force which is a deflective force and follows Ferrels law. A lthough the approximate position and strength of the main ocean currents have been known for upwards of two hundred years it is only in the last few decades that oceanographers have attempted to explain them on the basis of sound physical theory.

For many years the progress of oceanography was hampered by the lack of sufficient experimental data. Today much new information is being gathered. Origin of Ocean Currents.

The currents in the oceans are originated due to combined effects of several internal as well as external factors which control the origin and other characteristics of ocean current. They are related to different characteristics of ocean waters rotational mechanism of the earth external factors or atmospheric factors topographic characteristics of the. Ocean current stream made up of horizontal and vertical components of the circulation system of ocean waters that is produced by gravity wind friction and water density variation in different parts of the ocean.

Ocean currents are similar to winds in the atmosphere in that they transfer. In contrast to wind-driven surface currents deep-ocean currents are caused by differences in water density. The process that creates deep currents is called thermohaline circulation thermo referring to temperature and haline to saltiness.

It all starts with surface currents carrying warm water north from the equator. Cold-water ocean currents occur when the cold water at the poles sinks and slowly moves towards the equator. Warm-water currents travel out from the equator along the surface flowing towards the poles to replace the sinking cold water.

Ocean currents have a number of direct and indirect influences on human activities. Water Currents Generated by Ocean Tides. Water currents are generated by ocean tides due to upward and downward movement of sea level in the open and near shore regions.

The coastward movement of tides causes flood currents which pile up seawater against the sea coast. The currents caused by returning tides are called ebb currents. Thus flood currents move coastward while ebb.

Ocean MovementOcean CurrentTypes of Ocean 1 Warm Current2 Cold CurrentOrigin of Ocean Currents1 Prevailing Winds2 Temperature Difference3 Salinity Diffe. Ocean currents are originated near the equator because of high water level caused by exceptionally heavy daily rainfall and relatively low evaporation. Thus ocean currents after being originated in low latitudes move towards high latitudes.

Ocean currents are also generated in polar areas due to high water level resulting from low evaporation due to exceptionally low temperature and abundance of water due. Ocean currents can be caused by wind density differences in water masses caused by temperature and salinity variations gravity and events such as earthquakes or storms. Currents are cohesive streams of seawater that circulate through the ocean.

Currents are movement of oceanic water in a fairly defined direction under the influence of various forces. The origin and nature of movement of currents are related to various factors. Gravitational forces cause vertical movement of ocean waters.

An ocean general circulation model to show that although low frequency ISV of the observed ocean currents in 1991 is caused by instability in the northeast Indian Ocean the apparently disorderly ocean ISV is a deterministic response to the ISV of the wind field. मखय भग 150160 शबद महसगरय धरओ क उतपतत क परमख करक जस परचलत पवन तपमन म भननत लवणत म अतर वषपकरण पथव. Though recognized previously by others the mathematical expression for the Coriolis force appeared in an 1835 paper by French scientist Gaspard-Gustave de Coriolis in connection with the theory of water wheels.

Early in the 20th century the term Coriolis force began to.