Climate forcing for dynamics of dissolved inorganic nutrients at Palmer Station, Antarctica: An interdecadal (1993-2013) analysis

first_imgWe analyzed 20 years (1993–2013) of observations of dissolved inorganic macronutrients (nitrate, N; phosphate, P; and silicate, Si) and chlorophyll a (Chl) at Palmer Station, Antarctica (64.8°S, 64.1°W) to elucidate how large-scale climate and local physical forcing affect the interannual variability in the seasonal phytoplankton bloom and associated drawdown of nutrients. The leading modes of nutrients (N, P, and Si empirical orthogonal functions 1, EOF1) represent overall negative anomalies throughout growing seasons, showing a mixed signal of variability in the initial levels and drawdown thereafter (low-frequency dynamics). The second most common seasonal patterns of nitrate and phosphate (N and P EOF2) capture prolonged drawdown events during December–March, which are correlated to Chl EOF1. Si EOF2 captures a drawdown event during November–December, which is correlated to Chl EOF2. These different drawdown patterns are shaped by different sets of physical and climate forcing mechanisms. N and P drawdown events during December–March are influenced by the winter and spring Southern Annular Mode (SAM) phase, where nutrient utilization is enhanced in a stabilized upper water column as a consequence of SAM-driven winter sea ice and spring wind dynamics. Si drawdown during November–December is influenced by early sea ice retreat, where ice breakup may induce abrupt water column stratification and a subsequent diatom bloom or release of diatom cells from within the sea ice. Our findings underscore that seasonal nutrient dynamics in the coastal WAP are coupled to large-scale climate forcing and related physics, understanding of which may enable improved projections of biogeochemical responses to climate change.last_img read more

MLB releases statement clearing Angels’ Mike Trout after HGH accusation

first_imgThe story temporarily gained new life on Friday, when Daniel Roberts of Yahoo! tweeted that Cincinnati Reds pitcher Trevor Bauer had also told him that Trout had an exemption to use HGH. Roberts soon recanted, adding a tweet that said Bauer clarified that he had no knowledge of the three-time American League MVP using HGH. Both tweets have since been deleted. MLB grants about 100 Therapeutic Use Exemptions (TUEs) every year, allowing players to use otherwise banned substances for legitimate medical purposes. The vast majority of them are stimulants that are prescribed to treat Attention Deficit Hyperactivity Disorder.On Thursday, in the midst of the social media storm about the Houston Astros sign stealing, David Brosius, the son of former big leaguer Scott Brosius, wrote on his Instagram account that Trout had found a “loophole” that allowed him to use HGH because of a thyroid condition. After the allegation began to spread on social media, Brosius temporarily deleted his account. He posted an apology on Thursday night, saying his accusation had “no evidence” behind it. Brosius has since made his account private. Major League Baseball and the union issued a joint statement on Friday afternoon saying that no player has ever received an exemption to use Human Growth Hormone, reacting to a rumor about Angels All-Star Mike Trout that seeped into social media a day earlier.While not using Trout’s name, the statement was clearly a reaction to a Thursday Instagram post – that was deleted and then retracted – alleging that Trout had received MLB approval to use HGH because of a thyroid condition.center_img Newsroom GuidelinesNews TipsContact UsReport an Errorlast_img read more


first_imgBuncrana GAA Notes: Health & Wellbeing Conference 2015.Many leading health experts nationally and locally are contributing to the first ever Donegal GAA Health & Wellbeing conference on April 15th from 7.00pm (registration from 6.00pm) in Jackson’s Hotel Ballybofey. This free event is aimed at supporting and invigorating all those GAA volunteers who are driving this important work within the Association. It should be of particular benefit to players, coaches, managers, referees and club officers across all our disciplines of Gaelic Football, Hurling, Ladies Football, Camogie, Handball and Rounders. However, the variety of practical advice and information will be of benefit to those involved with clubs in any capacity and indeed any sport who are interested in learning more about Health and Wellbeing. Anyone intending to go should contact Aine Daly, the Club Health and Wellbeing Officer. Underage NewsParish LeagueRegistrations for the Parish League are on this Tuesday 14th at 3.30pm in the Scarvey for children born in 2005, 2006 & 2007.Topaz Cash for ClubsThere’s only 3 weeks left to collect these cards and we are still a bit away from the 300 target. So please, if anyone has cards filled then give them to any manager/committee member ASAP! We could be in with a great chance to win €€€€ here….don’t worry if you haven’t got a card as they have them at the counter of your Topaz station….. As much help as possible would be appreciated!!Minor HurlersBuncrana Minor hurlers continued their unbeaten start to their league campaign when they made the short trip to O’Donnell Park to take on St Eunans. The game started brightly for the Scarvey boys and they led from the throw in but were a bit wasteful in front of goal. In fairness, the Letterkenny boys never gave up and at one stage got the score back to just 5 points between the teams. The second half saw Buncrana pull away and run out convincing winners on a scoreline of 6:13 to 1:9. Patrick Wilson and Paul Tourish will be best pleased with their performances. As some of the boys only played well in patches, a general rise in standard of play and fitness will be required by all as the season progresses into the Championship. This might seem a bit harsh when you look at the winning margin but anyone who has been involved in or watched this particular squad develop over the years will know what they are capable of. Scorers: Oisin Grant 3:0, Dylan Duffy 1:3, Sam Doherty 1:2, Ben Doherty 0:4, Daniel Deery 1:0, Tom Clare 0:2, Paul Nelson 0:1, Darren Doherty 0:1.John McFadden Cup Buncrana U14s are hosting the John Mc Fadden Cup this Saturday. This is one of the highlights of the Clubs year and is always guaranteed to bring a large crowd to the Scarvey and features some excellent games with many stars of the future giving it their all. There will be 8 teams from all over Ulster coming to compete and hoping to go home with the Cup. This is always a great occasion and well worth a trip down to the Scarvey.Training TimesFootballU18 Minor Football Tuesdays at 5.45pm U16 Boys Football Monday’s 4.15pm in the Scarvey.U14 Tuesdays 7-8.30 and Fridays 4.14-5.45 (new and old players always welcome)U12 Boys Football on Friday evening at 7.00pm in Scarvey.U10 Boys Football Friday’s from 6.30pm in ScarveyU8 Boys Football Friday’s 6.30pm in ScarveyU6 Boys & Girls Friday Evenings from 6.30pm – 7.30pm in The ScarveyU8 & U10 Girls Saturdays 10.30 – 11.30 in the ScarveyHurlingU8 & U10 Hurling on Sunday’s from 11-12 in the ScarveyU14 Hurling on Tuesday 7 – 8.30pmU16 Hurling on Wednesday from 6.30pmGirls (U12/14/16) 7-8pm on Monday in the Scarvey.Mizen to Malin FundraiserThe Club is hosting a Table Quiz in the Lake of Shadows on 30th April so please get your thinking caps on and reserve the date. More details to follow including starting time, etc, once they have been confirmed.Club MerchandiseElizabeth Anne is now taking orders on the first Tuesday of every month. Contact her on 086 0604075.Club LottoMuch thanks to Claire Doherty and her sister Roisin for volunteering at very short notice to do the Club Lotto in the pubs on Saturday night. Roisin has played Minor and Senior Ladies in the past. The numbers drawn last week were 6, 8, 27, 29. There was no winner so the Jackpot goes up to €5,200. If no winner by the end of the month we will be drawing €500 for some lucky punter! has released a new eBook on GAA training:The Three Tiers: A Fresh Approach to Physical Preparation in Gaelic GamesAs part of the promotional launch every club that downloads a copy is entered into a draw for a set of jerseys!! The eBook can be found here: is a fantastic new resource for GAA clubs and a first of its kind within the GAA community.Club WebsiteWant to keep right up-to-date on local Buncrana Club news? Just enter your email address into “Receive Club Notes by Email” on the club’s homepage at to automatically receive the Club’s Weekly Notes.You can renew your annual membership online now at the website too – and you don’t even have to be in Buncrana! Membership now open worldwide…just click on the link below to renew online out Buncrana GAA Club Calendar on our website for period March – to April. Great sporting activities for children, boys and girls, and young adults Notes: Anyone who would like to receive a copy of the weekly club notes should email Jim at [email protected] be included on the mailing list. If you have any items which you think should be included in the club’s weekly notes, please email Jim at [email protected] by 6pm on each Sunday for consideration. To keep up to date with all the latest goings-on, please join us on or[email protected], or visit our website www.buncranagaa.comGAA NEWS: BUNCRANA U14’S SET TO HOST JOHN MCFADDEN CUP COMPETITION THIS WEEKEND was last modified: April 13th, 2015 by Mark ForkerShare this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Skype (Opens in new window)Click to print (Opens in new window)Tags:buncranaGAANoticesSportlast_img read more