Subpolar circulation in the southern hemisphere is dominated by the Antarctic Circumpolar Current, due to the lack of large landmasses breaking up the Southern Ocean. There are minor gyres in the Weddell Sea and the Ross Sea, the Weddell Gyre and Ross Gyre, which circulate in a clockwise direction.
Field of 68 teams set for 2015 NCAA Tournament. Mar 15, 2015; Nashville, TN, USA; Kentucky Wildcats forward Willie Cauley-Stein (15) dunks the ball during the first half of the SEC Conference championship game at Bridgestone Arena. Kentucky Wildcats defeated Arkansas Razorbacks 78-63.
Prior to expanding from 65 to 68 teams, the two lowest seeded teams played in the NCAA Men's Division I Basketball Opening Round game. Both the single Opening Round game and the current First Four games have been played at the University of Dayton Arena in Dayton, Ohio.