Recent advances in the measurement of bedforms beneath active ice streams have been made using ground-based grid profiling using impulse radar systems operating with centre frequencies in the 3–5 MHz range. Surveys of Rutford Ice Stream and Pine Island Glacier have shown that features such as mega-scale glacial lineations with topographic relief of as little as 3 m can be traced for many kilometres downstream under more than 2 km of fast-moving ice. In the discussion of these data, it is often asked ‘How is it possible to map such fine-scale topography with such a low-frequency radar’. In answering that question, the key point is the distinction between the precision of a radar range measurement to a single, isolated reflective interface and the ability to resolve the presence of two closely-spaced interfaces of similar reflectivity (commonly referred to as the vertical resolution). This paper will discuss and illustrate this distinction and use the case study of data acquired over Pine Island Glacier to examine the limits of precision of the radar range measurement.
COMMENT INDIANAPOLIS COLTS (7-9)New faces: QB Philip Rivers, DT DeForest Buckner, CB Xavier Rhodes, CB T.J. Carrie, WR Michael Pittman Jr., RB Jonathan Taylor, TE Trey Burton, DT Sheldon Day, FB Roosevelt Nix, CB-KR Isaiah Rodgers, S Tavon Wilson.Key losses: DE Jabaal Sheard, K Adam Vinatieri, TE Eric Ebron, S Clayton Geathers, WR Devin Funchess, OL Joe Haeg, WR Chester Rogers, WR Dontrelle Inman, C Josh Andrews.Strengths: Acquiring Buckner makes world of difference. He upgrades run defense, improves interior pass rush, and gives defensive coordinator Matt Eberflus more flexibility with rotations and schemes. He’ll also be teaming with DE Justin Houston and OLB Darius Leonard, giving Colts three defenders with Pro Bowl resumes. Offensive line, led by two-time All-Pro LG Quenton Nelson, has been among league’s best at protecting quarterbacks past two seasons, and top-10 ground game could be even better with new 1-2 punch of 1,000-yard rusher Marlon Mack and second-round pick Jonathan Taylor.Weaknesses: Andrew Luck’s sudden retirement last August created hole at quarterback, and after Jacoby Brissett got second chance to start, GM Chris Ballard brought in 38-year-old Rivers. Reich expects Rivers to revert to pre-2020 form by reducing turnovers. With exception of Pro Bowler T.Y. Hilton, Rivers will be working with young, promising group of receivers including Pittman Jr., this year’s second-round pick, and Parris Campbell, second-rounder who missed most of 2019 with injuries.Pandemic Development: Reich believes roster composition and maturity level of team give Colts competitive advantage this season. He used Zoom calls for everything from playbook installation to Rivers’ cadence, something Rivers credited for no false starts on first day of practice. Plus, Colts had only three backups opt out.Fantasy Player To Watch: Campbell. Indy needs someone to emerge as complement to Hilton and after playing small role as rookie because of injuries, Campbell could thrive if healthy. Coach Frank Reich envisions Campbell helping stretch defenses, could get some carries and might even return kicks. Having a year in system could give him leg up on Pittman, too.Vegas Says: Win Super Bowl: 25-1. Over/under wins: 9.Expectations: Over past three seasons, Ballard has slowly and steadily built roster. Now, after missing playoffs four of last five years, Indy believes Rivers can lead it back to postseason. Rivers is coming off one of worst seasons of career, but if he cuts down turnovers and relies on better offensive line and strong ground game, defense should hold up its end and Colts could be one of league’s most improved teams.(Image Credit: AP) Last Updated: 26th August, 2020 22:44 IST Colts Betting Big On Playoffs With Addition Of Rivers New faces: QB Philip Rivers, DT DeForest Buckner, CB Xavier Rhodes, CB T.J. Carrie, WR Michael Pittman Jr., RB Jonathan Taylor, TE Trey Burton, DT Sheldon Day, FB Roosevelt Nix, CB-KR Isaiah Rodgers, S Tavon Wilson. Associated Press Television News FOLLOW US First Published: 26th August, 2020 22:44 IST SUBSCRIBE TO US Written By LIVE TV WATCH US LIVE
NICK DOUGHERTY has praised the outstanding contributions made to England Golf by the award winners at the 2019 Performance Conference.Dougherty – who went on to become a three-times winner on the European Tour and is now lead presenter on Sky Sports Golf – excelled as an England amateur international after making his debut as a 15-year-old in 1997.Returning to Woodhall Spa for the first time since his amateur days, Dougherty insisted it was a privilege to present awards to three stalwarts who have devoted their time and expertise to either develop the next generation of golfers or lead senior teams to success at international level.Yorkshireman Graham Walker has been named as 2019 coach of the year.Walker is recognised as a leading expert in short-game teaching and over the years has worked with European Tour winners such as Danny Willett, Paul Waring, David Horsey as well as Ladies’ European Tour winner Holly Clyburn.Currently, Walker coaches world number 10 Tommy Fleetwood and passes on his knowledge to all the England Golf performance squads.Walker has been on the staff at England Golf since 2011 and his coaching continues to be of huge benefit to aspiring players looking to fulfil their potential.England Senior Women’s manager Debbie Richards – who unfortunately could not be present on the night – was recognised as volunteer of the year for 2019.Richards – a former senior international and Surrey county player – enjoyed three seasons in the role as senior women’s manager and led the team to European Senior Ladies’ gold in 2019 before announcing her retirement earlier this year.The final award winner was Cheshire’s Roy Smethurst – a legend of the amateur game in England.Smethurst’s contribution to senior golf over the decades has been nothing short of astonishing.Among his many honours as a player, Smethurst claimed four English Senior Amateur titles as well as a European Senior Amateur crown.The former Cheshire and Nottinghamshire county player has continued to enjoy success as a team manager leading the England Men’s Senior squad to three Home International titles in the last four seasons.The 2019 campaign also saw Smethurst lead England to the gold medal at the European Senior Men’s Team Championships.The ovation Smethurst received on the night was testimony to the high esteem in which he is held by his colleagues.Dougherty paid tribute to all the winners saying: “The success enjoyed by all the England performance squads over recent times wouldn’t be possible without the excellence in coaching and management that all the teams receive.“I know from my time representing England at amateur level just how crucial it was to have a good grounding in the game before making the move to the professional ranks.“I made my debut for England aged 15 and my heart was bursting through my shirt.“It remains a huge honour to represent England – something which you don’t really have the chance to do when moving into the professional ranks.“You only have to look at the numbers of English players currently making their way in both the men’s and ladies’ games to see that the work being done at grassroots levels and then with the performance teams as they move through the age groups is bearing fruit.”The 2019 performance conference was held under the banner ‘2020 Vision’ as England Golf strives to make improvements for the new season.Coaches and managers from all the regions gathered to listen to seminars on varied topics such as health and nutrition in golf, the World Handicap System and governance as well as enjoying practical coaching and strength and conditioning demonstrations.Photograph credit: Vicki Head 28 Nov 2019 Dougherty hails trio at England Golf Performance Awards Tags: Cheshire, England team, Nottinghamshire, Surrey, Yorkshire
Chris Hughton warned Brighton and Hove Albion that victory over Manchester United does not mean his side are set for a comfortable season in the Premier League.Brighton fought hard for survival in their first campaign following promotion last term, securing their top-flight status with a win against United in their final home match.Hughton’s men began the new season in the same fashion, defeating United in a 3-2 thriller, but the manager, while welcoming the result and performance, believes Brighton still have a long way to go. Article continues below Editors’ Picks Man Utd ready to spend big on Sancho and Haaland in January Who is Marcus Thuram? Lilian’s son who is top of the Bundesliga with Borussia Monchengladbach Brazil, beware! Messi and Argentina out for revenge after Copa controversy Best player in MLS? Zlatan wasn’t even the best player in LA! “[The win] shifts the mood, but it doesn’t change anything for this season. It’s going to be a tough season,” he told Sky Sports.”The three teams who came up are capable of taking points and this division is as competitive as ever.”If we think it’s going to the same or easier than last season, it’s not going to be. We have to make sure our level of performance, if not at this level, needs to be somewhere near it to get points.”Brighton looked a very different prospect to the side that meekly surrendered at Watford on the opening weekend, with Hughton acknowledging the players wanted to make up for their previous performance.”I think, within the group, they were that disappointed with the overall performance [at Watford],” he said. “They were that keen to put on a show and redress that balance.”Sometimes you do that, things go your way, sometimes they don’t. I think we forced things our way today with a very good performance.”