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.
In the most recently completed 2016 season, there were 300 NCAA Division I teams in the United States (including schools transitioning from Division II to Division I). As with most other U.S. intercollegiate sports, competitive college baseball is played under the auspices of the NCAA or the NAIA. The NCAA writes the rules of play, while each sanctioning body supervises season-ending tournaments.