The Agulhas Return Current ( ARC) is an ocean current in the South Indian Ocean. The ARC contributes to the water exchange between oceans by forming a link between the South Atlantic Current and the South Indian Ocean Current. [1] It can reach velocities of up to 4 knots (7.4 km/h; 4.6 mph) and is therefore popular among participants in trans ...The Agulhas Current is a fast and strong current that transports warm tropical Indian Ocean water southwards along the …May 8, 2018 · Agulhas current Part of the large-scale circulation of the southern Indian Ocean. It is a surface-water current that flows off the east coast of southern Africa between latitudes 25°S and 40°S in a south-westerly direction. Flow velocity varies seasonally between 0.2 and 0.6 m/s. A Dictionary of Ecology MICHAEL ALLABY. The ADT data identify the ring's track, showing that it was shed by the Agulhas Current retroflection in November 2009 and propagated northwest rapidly during the first 2 months (mean speed of about 10 cm s −1) but slowed down substantially (3–4 cm s −1) between March and July 2010, when it was last detected. The altimetry data also ...Aug 1, 2001 · The Agulhas Return Current constitutes the intense flow along the Subtropical Convergence south of Africa. It forms the connecting link between the generically similar South Atlantic Current and the South Indian Ocean Current, thus contributing to the water exchange between these two basins. This general along-front flow is, however ... A detailed study of the mesoscale structure and variability of the upper 500 m layer of the Agulhas Current off Durban has shown that the Agulhas Current is ...Jun 12, 2018 · Off the east coast of South Africa, robotic ocean gliders deployed in the Agulhas Current capture new data that help us better understand how energy dissipates in the ocean. by M. Krug, S. Swart ... Oct 1, 2001 · The Agulhas Current is the western boundary current of the Indian Ocean and as such has been studied with classical linear Sverdrup–Munk theory (De Ruijter 1982), using an idealized model of the Indian–Atlantic domain. The geographic distribution of the wind stress curl is central to the global circulation pattern over the Indian–Atlantic ... The influence of the Agulhas Current on the wave field is investigated. The study is conducted by performing high resolution spectral wave model simulations with and without ocean currents. The validation of the numerical simulations is performed for the Significant Wave Height (Hs) using all possible satellite altimetry data available in the …The Agulhas Current is the major western boundary current in the southern Indian. Ocean (Lutjeharms 1996). It is composed primarily of Indian Subtropical Surface.KEYWORDS: Agulhas Rings; Agulhas Current; mesoscale eddies; altimetry; three-dimensional structure. Citation: Sandalyuk, N. V. and T. V. Belonenko (2021), Three-Dimensional Structure of the ...Upwelling along the edge of the Agulhas Current is found in two instances. Upwelling of water between the shoreward side of the current and the continental slope is a normal occurrence along its full length and is already evident in the temperature sections published by Darbyshire (1964) and those shown in Fig. 1.Water with σt values greater …The Agulhas Current system has a profound impact on regional weather and climate and on the marine ecosystem [Lutjeharms, 2006]. It creates a coastal dynamic upwelling. Agulhas water leakage around South Africa controls the exchange of heat and salt between the Indian and Atlantic Oceans and has a role in the Atlantic meridional …Abstract The ring-shedding process in the Agulhas Current is studied using the ensemble Kalman filter to assimilate Geosat altimeter data into a two-layer quasigeostrophic ocean model. The properties of the ensemble Kalman filter are further explored with focus on the analysis scheme and the use of gridded data. The Geosat …The Agulhas Current and the Agulhas Retroflection can give rise to immense "rogue waves" that can even threaten supertankers. For that reason, mariners who successfully navigated the Cape of Good Hope frequently breathed a sigh of relief. On rare occasions, however, the clouds part and provide a spectacular view for hundreds of miles. A study of how Indian Ocean water flows around southern Africa and into the Atlantic Benguela Current, including the role of anticyclonic and cyclonic Agulhas ...Surface Currents in the Atlantic Ocean. The Agulhas Current. Main Text | Example Plots & Links | MGSVA Seasonal Plots. © 2001-2013.The greater Agulhas Current (AC) system near the southern tip of Africa is a key component in the global climate system through its role in inter-ocean heat and salt transport, thereby influencing ...18 Citations. 61 Altmetric. Metrics. Abstract. Mesoscale ocean eddies, an important element of the climate system, impact ocean circulation, heat uptake, gas …The ADT data identify the ring's track, showing that it was shed by the Agulhas Current retroflection in November 2009 and propagated northwest rapidly during the first 2 months (mean speed of about 10 cm s −1) but slowed down substantially (3–4 cm s −1) between March and July 2010, when it was last detected. The altimetry data also ...Jan 6, 2024 ... 2018). The results confirmed earlier work that the core of the Agulhas Current is associated with sharp gradients in SST and sea-level pressure, ...Jul 14, 2022 ... Need the Agulhas explained? Well, on this episode we chat about our namesake The Agulhas Current, what it is, what it does, and why it's so ...The Agulhas Current and the Agulhas Retroflection can give rise to immense "rogue waves" that can even threaten supertankers. For that reason, mariners who successfully navigated the Cape of Good Hope frequently breathed a sigh of relief. On rare occasions, however, the clouds part and provide a spectacular view for hundreds of miles. 1 Introduction. The Agulhas Current, flowing along the east coast of South Africa, is one of the world's strongest western boundary ocean currents and the most intense in the Southern Hemisphere (Rouault et al., 2002) with a mean poleward transport of approximately 70 Sv of warm Indian Ocean water (Bryden et al., 2005; Morris et al., …Over the core region of the Agulhas Current, new estimations of ocean surface velocities are reported using the increasing data set from the Automatic Identification System (AIS), initially designed to monitor vessel traffic. A two-step strategy is suggested. A first guess is evaluated from the collective behavior of vessels for a given space ...May 21, 2013 · The surface of the modern-day southern Agulhas Current experiences annual temperature variations averaging around 21 °C during winter months and 26 °C during summer months with a mean annual ... The Agulhas Current (/əˈɡʌləs/) is the western boundary current of the southwest Indian Ocean. It flows south along the east coast of Africa from 27°S to 40°S. It is narrow, swift and strong. It is suggested that it is the largest western boundary current in the world ocean, with an estimated net trHere the research team focused on the northern reaches of the Agulhas Current, a strong current that roughly follows the continental shelf break off the eastern coast of South Africa. The current ...Abstract The ring-shedding process in the Agulhas Current is studied using the ensemble Kalman filter to assimilate Geosat altimeter data into a two-layer quasigeostrophic ocean model. The properties of the ensemble Kalman filter are further explored with focus on the analysis scheme and the use of gridded data. The Geosat …Feb 14, 2014 ... This visualization from January 1, 2011 to December 31, 2013 shows sea surface temperatures (SST) associated with the Agulhas Current near ...The lead-lag correlations from the time series transport of the ITF water (10.5–15.5°S, 115.5°E), Agulhas Current (34.5°S, 27.5–30.5°E), and Agulhas Leakage (34.5–36.5°S, 26.5°E) are ...Feb 9, 2021 · 2 Satellite and Modeling Data for Waves in the Agulhas Current. The Agulhas current system is one of the most intense western boundary currents, with velocities exceeding 2.5 m s −1 along the East coast of South Africa, before retroflecting back into the Indian Ocean with large ring eddies shed in the South Atlantic Ocean (Beal et al., 2011 ... Feb 22, 2023 · The Agulhas Current (AC) is the strongest western boundary current in the Southern Hemisphere and plays a critical role in the climate system (Beal et al., 2011). Originating from the Mozambique Channel and the Southeast Madagascar Current, the AC transports around 76 Sv of warm water poleward (Beal et al., 2015; McMonigal et al., 2020). Abstract. The Agulhas Current (AC) off the southern tip of Africa is one of the strongest western boundary currents and a crucial choke point of inter-ocean heat and salt exchange between the Indian Ocean and the southern Atlantic Ocean. However, large uncertainties remain concerning the sea surface temperature (SST) and salinity (SSS) …The Agulhas Current was also found to affect the wave direction experienced at the surrounding coastal areas. This was especially prominent with waves propagating in the same direction as the Agulhas Current. In these cases, wave propagation directions were changed by up to 20°.The Agulhas Current is the strong western boundary current of the South Indian Ocean. It flows southward along the east coast of southern Africa, ...The greater Agulhas Current system is composed of the core of the Agulhas Current, which is about 219 km wide near 34°S []; the Agulhas Retroflection region with a loop diameter of 350 km []; and the Agulhas Return Current that meanders back in an eastward direction [] ().The core of the Agulhas Current is steered by the shelf break (200 m …The Agulhas Current is the largest and strongest Western Boundary Current (WBC) in the Southern Hemisphere (Roberts et al., 2010; Bryden et al., 2005).It flows southwestward along the east coast of South Africa (Fig. 1), forming the intensified western limb of the South Indian Ocean subtropical gyre (Imawaki et al., 2013).The Agulhas …Waters from the Indian Ocean, carried by the Agulhas Current separate from it when it turns sharply back East, becoming the Agulhas Return Current.18 Citations. 61 Altmetric. Metrics. Abstract. Mesoscale ocean eddies, an important element of the climate system, impact ocean circulation, heat uptake, gas …Agulhas Current. Large Marine Ecosystems of the World. PlaceType. Large Marine Ecosystem. Latitude. 22° 39' 4" S (-22.65111°) Longitude. 39° 28' 8" E (39.46889°)The Agulhas Current is one of the major currents of the world ocean. In the network of currents that connect the major ocean basins, it forms a key link. This linkage may be of critical importance in the way the ocean affects the earth's climate and climate change. Based on the research findings of 60 years, the author describes the origins of ... アガラス海流（アガラスかいりゅう、英: Agulhas Current ）とは、モザンビーク海流がモザンビーク海峡をとおりぬけてから、海岸沿いにアフリカ南端のアガラス岬まで達する海流をいう。 沿岸から100kmまでが特に強く幅狭い海流である。 アフリカ南端で急激に流向を南に変え、大部分は西風皮流 ...Abstract and Figures. Over the core region of the Agulhas Current, new estimations of ocean surface velocities are reported using the increasing data set from the Automatic Identification System ...AGULHAS is contained in 2 matches in Merriam-Webster Dictionary. Learn definitions, uses, and phrases with agulhas. ... Agulhas Current geographical name. a warm ocean current in the Indian Ocean flowing south along the southeastern coast of Africa. See the full definition. Word of the Day.Interpretation of the fossil record, based on the analysis of modern faunal analogs, indicates that during glacial intervals the Agulhas Current was not the ...Jul 14, 2022 ... Need the Agulhas explained? Well, on this episode we chat about our namesake The Agulhas Current, what it is, what it does, and why it's so ...A study of how Indian Ocean water flows around southern Africa and into the Atlantic Benguela Current, including the role of anticyclonic and cyclonic Agulhas ...Abstract The ring-shedding process in the Agulhas Current is studied using the ensemble Kalman filter to assimilate Geosat altimeter data into a two-layer quasigeostrophic ocean model. The properties of the ensemble Kalman filter are further explored with focus on the analysis scheme and the use of gridded data. The Geosat …Abstract Solitary meanders of the Agulhas Current, so-called Natal pulses, may play an important role in the overall dynamics of this current system. Several hypotheses concerning the triggering of these pulses are tested using sea surface height and temperature data from satellites. The data show the formation of pulses in the Natal …Jan 1, 2014 · The Agulhas Current is, together with the Gulf Stream and Kuroshio Current, among the strongest western boundary currents in the world’s oceans (Lutjeharms 2006).It flows poleward along the eastern coast of southern Africa from about 27° to 40°S, where it retroflects and returns eastward back into the South Indian Ocean. The Agulhas Current is the major western boundary current of the Southern Hemisphere [Lutjeharms, 2006] and a key component of the global ocean “conveyor” circulation controlling the return ...Jul 19, 2017 · The Agulhas Current also plays a critical role in global ocean circulation which is why it’s considered important for climatic conditions across the world. This is due to a process known as the Agulhas Leakage. The current flows along the east coast of South Africa and then turns back on itself flowing into the Indian Ocean. Learn about the Agulhas Current, a powerful current that flows from Antarctica to the Cape of Good Hope, where it meets the Benguela upwelling zone. See a false-color …the agulhas current is the major western boundary current of the Southern Hemisphere. It completes the anti-cyclonic gyre of the South Indian Ocean, and because the African continent terminates at a relatively modest latitude, it becomes a mechanism for the climatologically important inter-ocean exchange between the Indian and Atlantic Oceans.The Alaska Current is a deep ocean current that flows southward along the coast of Alaska. It is a cold current, formed by the sinking of dense, cold water in the Gulf of Alaska. The current carries nutrient-rich waters that support large populations of fish and other marine life. Agulhas CurrentAbstract Recent observations taken at four principal latitudes in the Agulhas Current show that the watermass properties on either side of its dynamical core are significantly different. Inshore of its velocity core are found waters of predominantly Arabian Sea, Red Sea, and equatorial Indian Ocean origin, while offshore waters are generally …Agulhas Current and the Natal Pulse The Agulhas Current is the principal western boundary current of the Southern Hemisphere. It is thought to be driven predominantly by the intense sub-gyral circulation of the Southwest In- dian Ocean (Harris, 1972; Lutjeharms, 1976) with smaller, and probably discontinuous, inputs from the …Agulhas Leakage. The Agulhas Current is the strong western boundary current of the South Indian Ocean. It flows southward along the east coast of southern Africa, but when it passes the southern tip of South Africa, it makes a tight turn (retroflects) and flows back into the Indian Ocean. However, this retroflection short-circuits every few ...Upwelling along the edge of the Agulhas Current is found in two instances. Upwelling of water between the shoreward side of the current and the continental slope is a normal occurrence along its full length and is already evident in the temperature sections published by Darbyshire (1964) and those shown in Fig. 1.Water with σt values greater …Abstract Strong upwelling events inshore of the Agulhas Current close to 33.5°S are investigated. These events are important to the exchange of shelf and slope waters, potentially enhancing primary productivity and advecting larvae offshore. Using hydrographic observations, this study shows that a wind-driven upwelling event and a …A key factor is the how the fast-running Agulhas current runs south and collides with ocean swells running north from the Southern Ocean. The current modifies the shape and height of the waves ...For example, off the coast of South Africa, wave trains frequently encounter the strong Agulhas current, causing the waves to become even steeper. Scientists continue to study rogue waves, which remain very difficult to predict. One concern is that rogue waves may become more common as Earth’s climate changes. Our planet is in a …Location of the Agulhas Current system and palaeoclimate archives used as a reference. Base map illustrates Southern Hemisphere annual mean surface temperatures compiled using the Ocean Data View ...Feb 22, 2023 · The Agulhas Current (AC) is the strongest western boundary current in the Southern Hemisphere and plays a critical role in the climate system (Beal et al., 2011). Originating from the Mozambique Channel and the Southeast Madagascar Current, the AC transports around 76 Sv of warm water poleward (Beal et al., 2015; McMonigal et al., 2020). KEYWORDS: Agulhas Rings; Agulhas Current; mesoscale eddies; altimetry; three-dimensional structure. Citation: Sandalyuk, N. V. and T. V. Belonenko (2021), Three-Dimensional Structure of the ...The Agulhas Current is known to transport heat and salt from the warm tropics to the cooler (sub-)polar regions, but little is known of its nutrient fluxes. Here we use new measurements of the essential …The Agulhas Current is the strongest western boundary current on Earth (Bryden et al., 2005) transporting 84 ± 11 Sv of warm (sub)tropical water into the mid-latitudes annually (Beal et al., 2015). Its path is guided by the southern African continental shelf (Duncombe Rae, 1991), from which the current separates at the southernmost tip.Jun 1, 2005 · Using a year-long moored array of current meters and well-sampled synoptic sections, we define the variability and mean structure and transport of the Agulhas current. Nineteen current meter records indicate that time scales for the temporal variability in the alongshore and offshore velocities are 10.2 and 5.4 days, respectively. Good vertical correlation exists between the alongshore or ... The Agulhas Current is the major western boundary current of the Southern Hemisphere [Lutjeharms, 2006] and a key component of the global ocean “conveyor” circulation controlling the return ...1 Introduction. The Agulhas Current (AC) is the strongest western boundary current (WBC) of the Southern Hemisphere, with an average transport of 70 sverdrup and current speeds in excess of 2 m s −1 [Beal et al., 2011].As it flows southward along the continental shelf break, the AC influences the oceanography of coastal and shelf regions …Agulhas leakage into the Atlantic ocean via the Benguela Current through the Agulhas eddy corridor [Garzoli and Gordon, 1996] is thought to be pivotal to Indian-Atlantic exchange of heat and salt, which is a key component of the global thermohaline circulation pattern [Gordon, 2003; Biastoch et al., 2008a]. Its global significance has thus …The Agulhas Return Current ( ARC) is an ocean current in the South Indian Ocean. The ARC contributes to the water exchange between oceans by forming a link between the South Atlantic Current and the South Indian Ocean Current. [1] It can reach velocities of up to 4 knots (7.4 km/h; 4.6 mph) and is therefore popular among participants in trans ...The Agulhas is a convoluted and multifarious system [].It consists of a western boundary current, the Agulhas Current, which is arguably one of the most prominent current systems of the Southern Hemisphere (Fig. 1).The Agulhas Current, roughly on par with its Northern Hemisphere counterpart, the Gulf Stream, carries vast …the agulhas current is the major western boundary current of the Southern Hemisphere. It completes the anti-cyclonic gyre of the South Indian Ocean, and because the African continent terminates at a relatively modest latitude, it becomes a mechanism for the climatologically important inter-ocean exchange between the Indian and Atlantic Oceans.Oct 12, 2010 · It is in the northern Agulhas Current that the strongest flows are observed with mean maximum velocities of about 1.5 m s −1 [van der Vaart and de Ruijter, 2001] and a current core flowing very close to the shore [Bryden et al., 2005]. The northern Agulhas Current is also singular in that it displays remarkably little variability [Grundlingh ... Here the research team focused on the northern reaches of the Agulhas Current, a strong current that roughly follows the continental shelf break off the eastern coast of South Africa. The current ...AGULHAS is contained in 2 matches in Merriam-Webster Dictionary. Learn definitions, uses, and phrases with agulhas. ... Agulhas Current geographical name. a warm ocean current in the Indian Ocean flowing south along the southeastern coast of Africa. See the full definition. Word of the Day.The Agulhas Current retroflection 6 The southern termination of the Agulhas Current is unique for a western boundary current in this respect that it takes place at the meridional extremity of the adjacent continent. This is unlike the continental con-straints to which the comparable Gulf Stream, the Kuroshio or the Brazil Currents are subject ...Abstract The influence of meridional shift of the oceanic subtropical front (STF) on the Agulhas Current (AC) regime shifts is studied using satellite altimeter data and a 1.5-layer ocean model. The satellite observations suggest the northward shift of the STF leads to the AC leaping across the gap with little Agulhas leakage, and the southward …Abstract The Agulhas Current (AC) is a critical component of global ocean circulation. However, due to a lack of multidecadal observations, it is not clear how the AC has changed in response to anthropogenic forcing. A recent observational study suggests a broadening and slight weakening of the AC in the past few decades, while others …Sep 29, 2022 · The Agulhas Current Modelled results show the eddy-rich region corresponding to the Agulhas Current shifting westward and poleward as warming continues (Fig. 2c ).
Agulhas Current and the Natal Pulse The Agulhas Current is the principal western boundary current of the Southern Hemisphere. It is thought to be driven predominantly by the intense sub-gyral circulation of the Southwest In- dian Ocean (Harris, 1972; Lutjeharms, 1976) with smaller, and probably discontinuous, inputs from the …. Jj cocomelon
the Agulhas Current, the Agulhas Retroflection, the Agulhas Return Current, the generation of Agulhas Rings and their drift into the South Atlantic [Penven et al., 2006]. For this inter-annual simulation, the model is forced by the 1958– 2001 SODA ocean reanalysis [Carton et al., 2005] with a temporal sampling of 1 month at its open ...Abstract An analysis of the Indian Ocean circulation and the Agulhas Current retroflection is carried out using a primitive equation model with simplified coastline and flat bottom. Four configurations with 0.25° and 0.1° horizontal resolution and in barotropic and baroclinic cases are considered. The wind stress is taken as control parameter to …1.. IntroductionThe greater Agulhas Current system forms the intensified western component of the subtropical gyre of the South Indian Ocean (Stramma and Lutjeharms, 1997).The Agulhas Current is supplied with Indian Ocean Tropical Surface Water of lower salinity (34.8–35.1) from the tropics (Gordon et al., 1987) and with more …Agulhas current: a warm, fast-moving high-saline current that moves southward down the east coast, its flow directed by topography. As you can see, the Algulhas breaks from South Africa’s coastline at Port Elizabeth and begins its anticyclonic path, turning back (retroflecting) into the Indian Ocean, while spiraling off in select zones along ... The Agulhas System Climate Array (ASCA) aims to improve our understanding of the role that the Agulhas Current plays in climate. The Agulhas Current is the ...Abstract An analysis of the Indian Ocean circulation and the Agulhas Current retroflection is carried out using a primitive equation model with simplified coastline and flat bottom. Four configurations with 0.25° and 0.1° horizontal resolution and in barotropic and baroclinic cases are considered. The wind stress is taken as control parameter to …The greater Agulhas Current system is composed of the core of the Agulhas Current, which is about 219 km wide near 34°S []; the Agulhas Retroflection region with a loop diameter of 350 km []; and the Agulhas Return Current that meanders back in an eastward direction [] ().The core of the Agulhas Current is steered by the shelf break (200 m …The Agulhas Current is a critical component of global ocean circulation and has been observed to respond to El Niño Southern Oscillation (ENSO) events via its temperature and salinity signatures. In this research, we use sea surface salinity (SSS) from the National Aeronautics and Space Administration’s (NASA) Soil Moisture Active Passive (SMAP) satellite, sea surface temperature (SST ... 2 Satellite and Modeling Data for Waves in the Agulhas Current. The Agulhas current system is one of the most intense western boundary currents, with velocities exceeding 2.5 m s −1 along the East coast of South Africa, before retroflecting back into the Indian Ocean with large ring eddies shed in the South Atlantic Ocean (Beal …Agulhas Current circulation, location of Crossroads (CR) hydrographic stations and distribution of samples: (A) A map of the sampling area overlaid with the Crossroad cruise track (black line) and ...Apr 25, 2012 · Agulhas Current. ( Also called Agulhas stream.) The major western semi of the subtropical gyre in the southern Indian Ocean and one of the swiftest ocean currents with mean speeds of 1.6 m s -1 and peak speeds exceeding 2.5 m s -1. Its total transport of 70 Sv (70 × 10 6 m 3 s -1) near 31°S and up to 135 Sv (135 × 10 6 m 3 s -1) near 35°S ... The Agulhas Current is the major western boundary current of the Southern Hemisphere. South of Africa it retroflects back into the southwest Indian Ocean, transporting relatively warm water into ...The Agulhas Current (AC)—the subtropical western boundary current of the Southern Indian Ocean (e.g., Imawaki et al., 2013; Lutjeharms, 2006)—flows poleward along the eastern coast of South Africa with a mean volume transport up to 84 Sv (1 Sv = 10 6 m s −3) and the maximum surface velocity exceeding 2 m s −1 (Beal & Bryden, 1999; ….