The Agulhas Current, a warm and salty current, carries Indian Ocean water along the east coast of South Africa, passing Durban and Port Elizabeth, in the direction of Cape Town, and ultimately towards the comparatively cooler and fresher South Atlantic Ocean. In the Indian and Pacific basins, however, some water from the Agulhas Current (AC) and East Australian Current (EAC) leak from the subtropical gyres, escaping westward south of Africa (AC . The Agulhas Current is the western boundary current of the South Indian Ocean. 3.15). The results show that with the assistance of a small bottom current of 4 cm/s in the same direction as the main current, the Agulhas Current can proceed round the Cape of Good Hope during three out of four seasons of the year. Following its divergence into deep water off the Tugela Bank, the Agulhas Current re-attaches itself to the coast south of Durban, where the the agulhas current flows in a southerly and westerly direction from the mozambique channel between africa and madagascar, down round the south east coast of south africa past the industrial cities of durban, east london and port elizabeth and eventually interacts with the cold north flowing benguela current off the southern tip of africa at cape … (PDF) OCEAN CURRENTS TYPES AND CAUSES OF CURRENTS | Hafez ... PDF Wind increase above warm Agulhas Current eddies Spatial and temporal variability of the Agulhas ... This may sound like a reverse way of seeing things, but it represents an ocean-centric viewpoint. Between Port Shepstone and East London, where the shelf is narrow, the current reaches its maximum velocity of 2.5 meters per second. it meets the cold current known as the West Wind Drift and disappears into the depths. It flows down the east coast of Africa from 27°S to 40°S (Gordon, 1985). . Flow velocity varies seasonally between 0.2 and 0.6 m/s. UPSC Geography - Indian Ocean Currents | NeoStencil the cold Benguela system that supports large . These waters are colder than the water they are moving into. Indian Ocean - Trade-winds zone | Britannica The first array ran from 2010 to 2013 (the Agulhas Current Time-series) Experiment). This has the effect of creating small counter currents that flow in the opposite direction. The wave sensor, as shown in Fig. Choose the one option that does not fit the pattern. The current follows the continental shelf from Maputo to the tip of the Agulhas Bank (250 km south of Cape Agulhas ). Instances of counter currents occur 45% of the time in the surface flow and 54% of the time in the depth-averaged record. This flows as the West Australian current along the west coast of Australia in the northern direction to finally reach the South Equatorial current, thus completing the anti-clockwise circulation in . It flows south along the east coast of Africa from 27°S to 40°S. The Agulhas current follows the edge of the continental shelf as it flows down the east coast of South Africa, transporting about 75 million cubic meters per second. The Earth's magnetic north pole, however, shift slowly with time, thus changing . A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY Strength and direction of flow are important factors to consider, with the northern sector of the Agulhas Current considered to be the most stable. direction at a rapid rate, with current speeds of 2.5 m/s or more, and water transport rates of over 60 × 10 6 m3/s have being recorded (Pearce et al. The cold Labrador Current, however, introduces very cold water to the eastern coast of Canada where some ports freeze. Velocity of the Agulhas Current is 2.7-3.7 km/hr. [5] Beal and Bryden [1999] showed that the Agulhas Current at 32 S was in geostrophic balance below 200 m, with a full water column transport of 73 Sv referenced to LADCP versus a 75 Sv transport from LADCP velocities alone. Bathymetry and relief map of Atlantic and Western Indian Ocean adapted from NOAA This was especially prominent with waves propagating in the same direction as the Agulhas Current. A composite of sea level pressure during thunderstorm days indicates that thunderstorms are related to eastward-propagating synoptic-scale wave trains passing through the Agulhas Current Little is sent about individual variation in flight directions and ten about the frequency of adjustments. Current -22:00 Meanwhile, the front of the leet is already sailing In March 1995, as part of the Agulhas Current Experiment (ACE), a section of fifteen full depth CTD/LADCP stations and shipboard ADCP data was collected across the current at 32S ().The LADCP measurements revealed an Undercurrent not observed before flowing equatorward beneath the core of the . The Agulhas Current plays a crucial role in the thermohaline circulation through its leakage into the South Atlantic Ocean. (b) Humboldt current (d) El Nino Answer. It includes upwelling zones associated with the strong tropical Agulhas current flowing in a south-westerly direction along the East coast, toward its inflection zone at . With a mean speed of 2 knots and a mean flux of 20 million metric tons per second, the Agulhas is the third fastest current in the world; only the Gulf Stream and the Kuroshio, off Japan, are faster. Agulhas current Part of the large-scale circulation of the southern Indian Ocean. This counter current flows close inshore, within about 3 to 4 miles of the coast and hence inside the southward flowing Agulhas Current. Cyclones also occur east of Madagascar between December and March. The observation that ships and icebergs in the southern hemisphere float to the left of the wind direction is an . When strong enough, this could literally change the direction of the Agulhas Current, but this point has not yet been reached. This causes the Agulhas Current to flow farther offshore, and current conditions over the shelf are more variable. Agulhas Current merges with the West Wind Drift when it crosses the Indian Ocean. Under both past and present climates, the trade winds and westerlies could have the ability to modulate the amount of Indian-Atlantic inflow. The Agulhas Current was also found to affect the wave direction experienced at the surrounding coastal areas. THE AGULHAS CURRENT Just off the South African coast is the Agulhas Cur­ rent. Indian Ocean - Indian Ocean - Trade-winds zone: The second zone, that of the trade winds, lies between 10° and 30° S. There, steady southeasterly trade winds prevail throughout the year and are strongest between June and September. The source water at its northern end is derived from Mozambique channel eddies (de Ruijter et al., 2002) and the East Madagascar These conditions are caused by a number of factors. Noting that, based on current observations, the Agulhas leakage is controlled by the latitude of maximum (Southern Hemisphere) westerlies and strength of wind fields over the Indian Ocean (Backeberg et al., 2012; Beal and Elipot, 2016; Biastoch et al., 2015), we hypothesize that the reduced Mozambique Channel throughflow weakened the Agulhas . The average ship-drift derived surface velocity plot shows two major source regions for the Agulhas current: (1) from the Mozambique channel to the north and along the coast; and (2) from the east including a major contribution from the Madagascar current. A current in the northern Indian Ocean that reverses direction during the year. When you have eliminated the JavaScript , whatever remains must be an empty page. Current in the opposite direction (northward) at approxi-mately 1200 m [Beal and Bryden, 1997]. a warm current in the Indian Ocean, off the southeast shores of Africa. Waves are measured hourly from a Marex Radar Wave Monitor based on 20 minutes data sampled at 2 Hz frequencies. They measure current speed, direction and temperature at extremely high temporal resolutions. The Agulhas Current was also found to affect the wave direction experienced at the surrounding coastal areas. Agulhas Current stone cold Benguela Current account sweep the coastlines. 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