wind stress उदाहरण वाक्य
उदाहरण वाक्य
- A consequence of the Ekman theory explains that oceanic flow at the surface is directed at 45 degrees to the right of the wind stress in the Northern Hemisphere.
- Surface oceanic currents are sometimes wind driven and develop their typical clockwise spirals in the northern hemisphere and counter-clockwise rotation in the southern hemisphere due to imposed wind stresses.
- Physically, this implies that the altered convection in the Pacific Ocean due to El Ni�o drives changes in the meridional gradient of wind stress curl over the equatorial Atlantic.
- The structure of a subtropical frontal zone results in the formation of a positive wind stress curl, which is the shear stress exerted by wind on the surface of water.
- For example, positive ( eastward ) anomalies in wind stress in the central Pacific excite positive anomalies in 20�C isotherm depth which propagate to the east as equatorial Kelvin waves.
- This is strikingly similar to the wind stress anomalies seen in the Pacific during El Ni�o ( or La Ni�a ) events, although centered farther west in the Atlantic basin.
- Wind stresses cause a phenomenon referred to as " wind set-up ", which is the tendency for water levels to increase at the downwind shore, and to decrease at the upwind shore.
- Sverdrup theory succinctly summarizes this phenomenon mathematically by defining a geostrophic mass transport per unit latitude, M, as the east-west integral of the meridional derivative of wind stress curl, minus any Ekman transport.
- A warm anomaly is associated with relaxed trade winds across a large swath of the equatorial Atlantic basin, while a cool anomaly is associated with enhanced easterly wind stress in the same region.
- In this simple, modeling setting, the principal factors that were accounted for influencing the oceanic circulation were surface wind stress, bottom friction, a variable surface height leading to horizontal pressure gradients, and finally, the Coriolis effect.