Eddies in the Southern Ocean act to moderate the response of the Antarctic Circumpolar Current (ACC) to changes in forcing. An updated analysis of the Southern Ocean satellite altimetry record indicates an increase in eddy kinetic energy (EKE) in recent decades, contemporaneous with a probable decrease in ACC transport. The EKE trend is largest in the Pacific (14.9 ± 4.1 cm2 s-2 per decade) and Indian (18.3 ± 5.1 cm2 s-2 per decade) sectors of the Southern Ocean. We test the hypothesis that variations in wind stress can account for the observed EKE trends using perturbation experiments conducted with idealised high-resolution ocean models. The decadal increase in EKE is most likely due to continuing increases in the wind stress over the Southern Ocean, albeit with considerable interannual variability superposed. ACC transport correlates well with wind stress on these interannual timescales, but is weakly affected by wind forcing at longer periods. The increasing intensity of the Southern Ocean eddy field has implications for overturning circulation, carbon cycling and climate.
Published on May 20, 2015 at 4:11 pm Contact Matt: [email protected] | @matt_schneidman Facebook Twitter Google+ Syracuse released its first post-spring practice depth chart Wednesday afternoon. Here are five takeaways from the pecking orders that may open a few eyes heading into the preseason.1) Redshirt freshman Kayton Samuels starting over senior Wayne WilliamsOn the Atlantic Coast Conference spring coaches’ teleconference, SU head coach Scott Shafer praised the improvement of Samuels on the defensive line. The starters were presumed to be Williams and senior John Raymon – who’s listed as the starter at defensive tackle – but for now, Samuels has the nod over Williams at the nose tackle spot instead.2) Senior Ashton Broyld listed as third-string H-backSyracuse and offensive coordinator Tim Lester are looking to do big things with the “hybrid” position this year, and Broyld doesn’t seem to be at the forefront of those plans just yet. Sophomore Ervin Philips and junior Ben Lewis are ahead of Broyld on the depth chart, and the senior is coming off a season where he only played four games due to injury.AdvertisementThis is placeholder text3) Austin Wilson ahead of AJ Long in quarterback pecking orderWhen Terrel Hunt went down with a fractured fibula last year, Long was the one to step in. He completed 54 percent of his passes in six games and threw two touchdowns against then-No. 1 Florida State on Oct. 11. But Wilson – a sophomore who played in five games and completed 56 percent of his passes last year – will be Hunt’s backup for now.4) Walk-on Cameron MacPherson listed as backup tight endThe junior transfer from Georgetown hasn’t played a snap yet for the Orange – he sat out last season due to transfer rules. But he’s still listed ahead the likes of JUCO transfer Trey Dunkelberger and sophomore Tyler Provo, and looks to be getting a chance as Josh Parris’ backup to start the preseason.5) Freshman Matt Keller in the primary long-snapper spotIt’s rare to see a recruited long-snapper, but that’s what Keller is. He spent the spring at SU after finishing high school early, and was placed ahead of returners Keith Mitsuuchi and Nathan Hines on the depth chart. For now, it looks like Keller will be the one tasked with replacing all-around man Sam Rodgers. Comments
The First Capital Plus Premier League will this afternoon see Accra Hearts of Oak stay at the Accra Sports Stadium to welcome Wa All Stars in an encounter which will see Hearts battle to reverse their three nil defeat in the first round. The Official kick off time is @ 3:30pm.The Referees Committee has appointed Samuel Gyasi to officiate the top-liner in this mid week action .Meanwhile all four clubs representing the country in both CAF Champions League and Confederation Cup will have their matches postponed to February 12.Below is the list of referees and assistants for the match-day-16 fixtures.Wednesday, February 5Match: Hearts of Oak vs Wa All StarsVenue: Accra Stadium Referee: Samuel GyasiAssistant 1: Richard AppiahAssistant 2: Shine Ayitey4th Official: Eku BoatengMatch Commissioner: Francis Dogbaste Match: New Edubiase vs Aduana StarsVenue: Gyamfi ParkReferee: E.R. BineyAssistant 1: David LaryeaAssistant 2: J.B Smith 4th Official: Emmanuel Dally-GagbaMatch Commissioner: Paul AyambaMatch: Hasaacas vs AmidausVenue: Essipon StadiumReferee: John Atikese Assistant 1: Alex AnningAssistant 2: Isaac Boadi4th Official: Prosper AdiiMatch Commissioner : M. Arthur DadzieMatch: Heart of Lions vs Liberty Venue: Kpando ParkReferee: O.B. AmankwahAssistant 1: Joseph SeyAssistant 2: Suleman Abdul4th Official: Ernest Baafi Match Commissioner : Michael AryehMatch: Bechem vs King FaisalVenue: Bechem ParkReferee: Samuel SukahAssistant 1: Eric NyanteriAssistant 2: Michael Agbenuzah4th Official: Samuel Lee LeeMatch Commissioner : Opare Akuffo