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Detection of artificially generated ULF waves by the FAST spacecraft and its application to the ‘tagging’ of narrow flux tubes

first_img[1] Recently, Robinson et al. [2000] presented a brief report on the artificial generation of ULF waves by high power ionospheric modification and their subsequent detection by the Fast Auroral Snapshot ( FAST) spacecraft. The radio frequency “heating” facility at Tromso was employed to impose a 3-Hz modulation on the current system that constitutes the auroral electrojet, resulting in the injection of field-guided ULF waves into the magnetosphere. The electric and magnetic field signatures of the waves were detected directly by the FAST spacecraft. Furthermore, a signature in the downgoing field-aligned electron flux, also observed by the satellite, was postulated to have resulted from the interaction of the ULF waves with the upper boundary of the ionospheric Alfven resonator. This paper evaluates these results in the context of the prevailing ionospheric conditions during the experiment and discusses the significance of the substorm activity, which occurred during this interval. The technique of artificial ULF wave injection, which can be used to “tag” narrow flux tubes, could play an important part in overcoming mapping issues between ground-based and space-based observations of phenomena that couple the ionosphere and magnetosphere.last_img read more

USO Tour Sparks Excitment at Naval Station Rota, Spain

first_img View post tag: Spain View post tag: Sparks View post tag: Defense Back to overview,Home naval-today USO Tour Sparks Excitment at Naval Station Rota, Spain View post tag: Navy February 27, 2013 View post tag: Defence View post tag: Naval View post tag: station View post tag: Tour Authorities View post tag: Excitment View post tag: Rota The United Service Organizations (USO) brought all-star entertainment to members aboard Naval Station Rota, Spain, Feb. 26 to start their spring tour to visit troops abroad. 

Vice Chairman of the Joint Chiefs of Staff Adm. James Winnefeld hosted the star-studded group of athletes, coaches and musicians.“I am thankful for those who wear the cloth, to serve our nation and serve our country overseas,” said Winnefeld.The show kicked off with opening remarks from NAVSTA Rota’s Commanding Officer Capt. Scott Kraverath.“I’m honored to have the opportunity to host such a distinguished group of individuals,” said Kraverath. “Events like these are great for morale and show our service members that their hard work and dedication does not go unnoticed.”During the show, members of the tour thanked service members for the sacrifices and service to the country.“I’m so honored to be a part of this [USO tour],” said Tampa Bay Buccaneers wide receiver Vincent Jackson. “This being our first stop, obviously you guys are very special, and I’m excited to be here. I’m a military brat. On the flight over, talking to these guys, Peyton and some of the other athletes and cheerleaders, one way or another we all seem to be related to someone in the military. Whether it’s a grandfather or a niece or nephew, brother or sister-in-law, we all know somebody who has served in our military. For myself it was my father.”Jackson explained his experience as a military dependent moving overseas and experiencing the military life as his father served in the Army.“I don’t like to make a comparison to the military and football, sports even, because you guys are on the front lines. You’re dealing with live ammunition, doing something extreme. You’re protecting our freedom, creating world peace and we pretty much, on Sundays, entertain people for four hours.Jackson said, however, that there are some parallels between the National Football League (NFL) and the military.“The leadership, the sacrifice, the communication you guys have, the training, the bonding, the unselfish mentality that you have to have to create a team atmosphere,” said Jackson. “Just like a football team, we come from all walks of life. You work together, you train to accomplish that mission, you build bonds and relationships that last a lifetime. That’s kind of what we do as athletes.”Four-time World Series pitcher Kurt Schilling also spoke of his appreciation.“Thank you doesn’t even begin to describe what we think, what we feel and how we feel about you and your families,” said Schilling. “I grew up the son of an airborne paratrooper. My dad served in the 101st for 20 years. This is my second trip over on a USO tour. The first one was eight days that I’ll never forget. This one is starting out to be unforgettable as well. Thank you. To the families, I know there’s a price to be paid in uniform and out by the families. It’s just apparent that the one thing, when we walk away today, that you are all in our thoughts and prayers. We wish you nothing but the best.”Denver Broncos Quarterback Peyton Manning also expressed his appreciation for the commitment service members have for the country.“Thanks from the bottom of my heart,” said Manning. “The one thing that has always motivated me playing football is being accountable to my teammates. What’s really driven me for the past 16 years playing football is being accountable, doing my job at the very best that I can to be accountable to help my teammates. I know that’s exactly what you believe in, as it’s really what the military is all about.”Manning and Indianapolis Colts wide receiver Austin Collie threw autographed footballs to service members in the audience.After the performance, members had a chance to meet with Winnefeld and the entertainers for a photo and autograph session.“This is my third time on a USO tour and my first time here in Spain,” said Dallas Cowboys Cheerleader Jackie Bob. “I’m so thankful and honored for you all to come up here and see us. It’s an honor for us to be able to say ‘thank you’ for those that serve us.”[mappress]Naval Today Staff, February 27, 2013 View post tag: At View post tag: News by topic USO Tour Sparks Excitment at Naval Station Rota, Spain View post tag: USO Share this articlelast_img read more

The Quest for Solid Ground

first_imgAccording to the EMC Global Data Protection Index, which surveyed 3,300 IT decision makers from mid-size to enterprise-class businesses across 24 countries, common data protection practices have left global businesses exposed to data loss and downtime to the tune of $1.7 trillion annually. For the sake of comparison, that’s about the same as the world’s total military spend in a single year. A startling statistic by any account!And this is only a glimpse of what’s to come if attitudes and practices toward data protection are left unchanged.As the world marches to the cloud and business markets become increasingly connected, ensuring that data is protected, always on, and always available becomes absolutely critical. In fact, I’d go so far as to say the business trends underpinning the 3rd Platform – specifically social media, big data, mobile and cloud – don’t just spell the end of business as usual, but also the end of data protection as we know it.Organizations that don’t look to new strategies to ensure availability across their environments – wherever their data resides, whatever the application that generates it – won’t just cut into profits; they’ll put their businesses at significant risk.Data loss and downtime will continue to have a detrimental impact on business profits, but the effects of the disruption will be felt much further than they are today – and will be much farther reaching than many of us could have ever imagined.Yes, disruptions in protection will continue to limit product and service development. Yes, downtime will continue to take a bite out of revenue. And yes, incremental business opportunities, customer acquisition and repeat business will continue to be affected by the way we protect our data. But the bigger issue – the one that global enterprises of all sizes will really want to pay attention to – is how data protection will affect new business opportunities and revenue streams going forward. That’s why we’ll likely see these types of business consequences, along with a loss in market value, move to the top of the disruption list.Similarly, what’s causing these disruptions will also shift as data moves to and between clouds, and data management becomes increasingly important.Lastly, the index shows that businesses are adopting a new mindset about data protection… that they are trading in their multi-decade-held views of data protection as a back office activity for one that sees protection as part of boardroom discussions.While there is little consensus among those surveyed on the technology in place to prevent disruptions and ensure availability, nearly two-thirds of the global enterprises surveyed consider data protection critical to the success of their businesses, and the numbers are even higher in China (90%), Brazil (82%) and the United States (80%). Encouraging signs all around!However, there’s a still a significant gap between what organizations know (i.e., that data protection is critical to the future of their business) and current confidence levels. (If they’re not confident in current practices, what does this say about future plans?)In fact, 71% of those surveyed said they were not fully confident that they could recover systems/data today from all platforms.Now, I’m not sure what “fully confident” means, but I do know that in the business world to which we are headed, confidence along with the ability to adapt and execute to market shifts is paramount, and the only way to achieve this is to think and do things differently.We’re ready to disrupt markets through data protection. What about you? How solid is the ground your enterprise is standing on?* * * * *To see more EMC Global Data Protection Index results, please visit our microsite.last_img read more

Paul Merson backs Arsenal to claim Champions League spot ahead of Chelsea and Man Utd

first_imgAdvertisement Arsenal salvaged a point at Old Trafford (Picture: Getty)Paul Merson has predicted Arsenal will narrowly beat Chelsea and Manchester United to fourth spot in the Premier League.Liverpool and Manchester City are expected to claim the top two positions, while Tottenham remain favourites to take third spot despite a difficult start to the campaign.Arsenal and United drew 1-1 at Old Trafford on Monday night and Merson thinks the Gunners just have an edge over the Red Devils and Chelsea.‘There is a long way to go. The teams you are asking to finish in the top six – Leicester and West Ham – it is a big ask for them,’ Merson told Sky Sports.ADVERTISEMENT Paul Merson backs Arsenal to claim Champions League spot ahead of Chelsea and Man Utd Arsenal currently occupy fourth spot (Picture: EPA)‘Chelsea are a younger team, they have youth on their side. I am not saying it is a shoo-in they will finish in the top four this season, and if they do not, it is not the end of the world for Chelsea.‘But for the other teams, it could be a bit of a problem. I would probably say Arsenal, but only just.‘There were two nervous football teams at Old Trafford on Monday night with a lot of pressure on them. They could not handle the pressure very well and it was a very hard game to watch.’MORE: N’Golo Kante, Olivier Giroud and Kurt Zouma return to Chelsea training ahead of Lille clashMore: FootballRio Ferdinand urges Ole Gunnar Solskjaer to drop Manchester United starChelsea defender Fikayo Tomori reveals why he made U-turn over transfer deadline day moveMikel Arteta rates Thomas Partey’s chances of making his Arsenal debut vs Man City Metro Sport ReporterTuesday 1 Oct 2019 5:48 pmShare this article via facebookShare this article via twitterShare this article via messengerShare this with Share this article via emailShare this article via flipboardCopy link462Sharescenter_img Chelsea are seventh in the table (Picture: Getty)‘Certain players have to stay fit for them, so I think it is between Chelsea, United and Arsenal who will finish in the top four.AdvertisementAdvertisement‘The cream always comes to the top – they (United and Arsenal) are not playing well at the moment, but over 38 games, you are asking Leicester and West Ham to do something special the way the gulf is at the moment.‘There is not going to be a lot between Chelsea, United and Arsenal, so fourth to sixth could be six points. It is not going to be like it has been over the years where the top four are 10-15 points ahead of everybody else. Advertisement Commentlast_img read more