Anticyclonic gyres

Currents in cyclonic gyres move water in a clockwise direction and counterclockwise in anticyclonic gyres. 

In May (Fig. 8), the western SBCG, which displaced to the Bulgarian coast, becomes more intensive. South of the Crimea and off the middle part of the Caucasian coast, anticyclonic gyres develop they cannot be referred to as NSAEs, especially at a depth of 300 m (Fig. 8b). One of them is well manifested even at a depth of 1000 m (Fig. 8c), where the BSGC retains only its most general features intrinsic of it in the upper 300-m layer. 

QSNSAG Quasistationary near-shore anticyclonic gyres... 

In the centers of cyclonic gyres, the location of the H2S upper boundary decreases to 90-110 m, whereas at the periphery of the basin and in the centers of anticyclonic gyres it can deepen up to 160-240 m. The spatial... 

C) and the low productivity SW Pacific subtropical anticyclonic gyre (Area K), Stoffers et al. (1981) showed that the siliceous oozes from the equatorial North Pacific have much higher contents of Mn, Ni, Cu and Ba but lower contents of Fe and Co than the red clays from the SW Pacific (Table 11.3). Sedimentation rates on a carbonate-free basis for the two areas are of the same order (1-3 mm ka for the equatorial North Pacific and 0.5-1 mm ka" for the SW Pacific). Differences in the transition metal contents of these sediments were therefore considered to be eontrolledby sediment type rather than sedimentation rate. Caleulations based on the equations of Bischoff et al. (1979) confirmed that the hydrogenous (authi-genic) eomponent was much higher in Area C (7.9%) than in Area K (3.2%) sediments. 

A large long-living anticydonic eddy centered at 43°N and 34°E, in the area between the western and eastern cyclonic gyres (approximately abeam the southern extreme of the Crimea), was detected by the hydrographic survey of 1984 [6]. It was formed in September 1984 as a result of coalescence of two other anticyclones formed owing to baroclinic instability of the RC and to detachment of its meanders in the north (from the Crimean coast) and in the south (from the Turkish coast near Sinop). Its diameter exceeded 100 km, the maximum of the orbital geostrophic velocity was 25-45 cm/s, and the rate of the westward displacement was about 1 cm/s. Density and salinity anomalies related to this eddy were traced down to a depth of 1000 m and temperature anomalies were followed down to 300 m. 

The notion of the predesiccation Aral Sea circulation is somewhat speculative, given that extremely few (if any) direct current measurements have been reported. However, already the early researchers [7, 8] perceived the most peculiar feature of the sea s basin-scale circulation, namely, its anticyclonic direction (although there was also a hint of a smaller cyclonic gyre north of Barsakelmes Island [4, 9]). As is well known, the neighboring enclosed seas lying in the same latitude belt, such as the Black Sea, the Sea of Azov, and the Caspian Sea, all exhibit cyclonic... 

When large-scale circulation is concerned, the northeast monsoon will drive a basin-scale cyclonic circulation with each cyclonic g rre in the northern and southern SCS (NSCS, SSCS), respectively, and the circulation displays a double-g3Te structure. In summer, the circulation in the NSCS will still maintain a weak cyclonic gyre. However, due to the southwest monsoon, the circulation in the SSCS displays an anticyclonic g3Te. 

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