A case study test of Araki’s physical model of geomagnetic sudden commencement

first_imgThis paper tests the Araki [1994] computational model of the Earth-ionosphere system during geomagnetic sudden commencement (sc). In particular, we test the model’s ability to predict the signs of the preliminary and main impulses, given the latitude and the magnetic local time (MLT), using a case study of an sc which occurred at 0949 UT on November 22, 1997. Data from a global network of magnetometer stations and from satellites are used. Model predictions compare well with the case study data at high latitudes (above ∼ 72°N Altitude Adjusted Corrected Geomagnetic Coordinates (AACGM)), less well for lower latitudes, particularly on the nightside. In addition, the position of the footprints of the field-aligned currents (FACs) associated with the sc ground signature varies with MLT, contrary to the model. Data from satellites in polar and geostationary orbits suggest that the FACs for both the preliminary and the main impulses map to gradients in magnetospheric plasma concentration, such as the outer radiation belt and the plasmapause.last_img read more

USA: Elizabeth River Deepening for Aircraft Carriers Starts Today

first_img USA: Elizabeth River Deepening for Aircraft Carriers Starts Today View post tag: starts View post tag: Deepening View post tag: today Dredging operations, deepening portions of the Elizabeth River from Lambert’s Point in Norfolk, Va., to the Norfolk Naval Shipyard in Portsmouth begins today.The Norfolk District, U.S. Army Corps of Engineers is overseeing the approximately $20 million project that will allow the Navy’s nuclear powered aircraft carriers to traverse from Norfolk Naval Station to the Norfolk Naval Shipyard safely at all times of the day.“The dredging is necessary to eliminate the risk of the nuclear-powered aircraft carriers damaging their ballast water intakes, as well as grounding and possible hull damage.” said Raad Humadi, Naval Facilities Engineering Command Mid-Atlantic project manager.For three tenths of a mile, from Lamberts Point to the Navy Deperming Station, a 600-foot-wide portion of the federal navigation channel will be deepened from 40 to 50 feet. Another four-and-half-mile, 600-foot-wide portion of the channel from the deperming station to the naval shipyard will be deepened from 40 feet to 47 feet.“This will allow us to meet the current requirements for ships entering and exiting into the Lambert’s Point Deperming Station, allowing the carriers safe transit into and out of the Deperming Facility,” said Humadi. “The other reach of the project allows the carrier safe transit to and from Norfolk Naval Shipyard for repairs and overhauls.”The Corps’ contractor, Norfolk Dredging Company from Chesapeake, Va., will start dredging operations at Lamberts Point and work their way to the naval shipyard during the next 18 months, removing approximately three million cubic yards of material. The dredged material will be pumped into the district’s Craney Island Dredge Material Management Area in Portsmouth, Va.(navy)[mappress]Source: navy, April 15, 2011; View post tag: Aircraft View post tag: Carriers Industry news View post tag: Naval Share this article View post tag: usa View post tag: Navy View post tag: River April 15, 2011 Back to overview,Home naval-today USA: Elizabeth River Deepening for Aircraft Carriers Starts Today View post tag: News by topic View post tag: Elizabethlast_img read more

USS George H.W. Bush Starts Composite Training Unit Exercise

first_img USS George H.W. Bush Starts Composite Training Unit Exercise Back to overview,Home naval-today USS George H.W. Bush Starts Composite Training Unit Exercise Training & Education The George H.W. Bush Carrier Strike Group (CSG) 2 departed Norfolk to begin Composite Training Unit Exercise (COMPTUEX)Nov. 20.COMPTUEX is a series of training exercises designed to certify the carrier strike group deployment-ready by testing its ability to react to real-world scenarios and perform as an integral unit.Commander, Strike Force Training Atlantic (CSFTL) is evaluating CSG2 on how they perform during simulated surface and sub-surface threats and ship movements such as transiting a strait in hostile waters.“CSFTL will evaluate our ability to perform all the different mission sets,” said Cmdr. Andrew Walton, the Operations officer of USS George H.W. Bush (CVN 77). “This includes everything from counter-piracy to maritime interdiction operations and strike warfare.”Throughout COMPTUEX, fictitious geopolitical scenarios are used to replicate real-world circumstances that could be encountered during deployment.“We immerse ourselves in this synthetic world from the second we pull lines over and get underway,” said Cmdr. Walton. “This acts as a representation of what we’ll see throughout our deployment, such as failed states, acts of piracy, and counter-terrorism operations. We expect that throughout the event, there’ll be airborne, surface and even sub-surface forces out there that will be testing us.”CSG 2 combines George H.W. Bush, Carrier Air Wing (CVW) 8, and Destroyer Squadron (DESRON) 22 during the exercise. All ships and their crews and the embarked air wing will play a vital role“Our role during this COMPTUEX will be similar to previous underways,” said Lt. j.g. Jared Good, a pilot in Helicopter Sea Combat Squadron (HSC) 9. “We will continue to provide support foraAnti-terrorism force protection, and such things as vertical replenishment and man-overboard drills.”CSG 2 is conducting its final pre-deployment evaluation to ensure safe and effective coordination with the strike group to achieve mission readiness and the ability to work alongside international allies in the execution of the Navy’s maritime strategy.[mappress]Press Release, November 21, 2013; Image: US Navycenter_img November 21, 2013 Share this articlelast_img read more

Lockheed Martin lays keel for USS Indianapolis

first_img View post tag: US Navy View post tag: USS Indianapolis Lockheed Martin lays keel for 17th LCS USS Indianapolis Authorities A shipbuilding team led by Lockheed Martin has officially laid the keel for the U.S. Navy’s 17th Littoral Combat Ship (LCS), the future USS Indianapolis, in a ceremony held at Fincantieri Marinette Marine in Marinette, Wisconsin.Ship sponsor Jill Donnelly, the wife of U.S. Senator Joe Donnelly, authenticated the keel by welding her initials onto a steel plate that will be placed in the hull of the ship.The Lockheed Martin team is currently in full-rate production of the Freedom-variant of the LCS, and has delivered three ships to the U.S. Navy to date. The future USS Indianapolis is one of seven ships in various stages of construction at Fincantieri Marinette Marine, with three more in long-lead production.The Freedom-variant is one of two littoral combat ship designs that are entering service with the U.S. Navy. Australian-based shipbuilder Austal is building the trimaran-shaped Indenpedence variant ships in Mobile, Alabama.LCS 17 will be the fourth ship to bear the name USS Indianapolis. A previous Indianapolis (CA 35) is best known for its role in World War II, where it operated throughout the Pacific escorting convoys and attacking enemy submarines. Indianapolis’ service ended when it was sunk by a Japanese torpedo on July 30, 1945. Only 317 of the 1,196 sailors serving aboard the ship survived after five days afloat in the Pacific Ocean. Richard Thelen, a USS Indianapolis (CA-35) survivor, attended the keel laying ceremony as a representative of all who sailed on CA-35.The Lockheed Martin-led LCS team is comprised of shipbuilder Fincantieri Marinette Marine, naval architect Gibbs & Cox, and more than 500 suppliers in 37 states. The Freedom-variant has a steel monohull design which, as Lockheed Martin says, has a hull with 40 percent reconfigurable shipboard space making it “ideally suited to accommodate additional lethality and survivability upgrades” associated with the Freedom-class Frigate. View post tag: Lockheed Martincenter_img View post tag: Freedom-variant July 20, 2016 Back to overview,Home naval-today Lockheed Martin lays keel for 17th LCS USS Indianapolis Share this articlelast_img read more

German Navy drops out of Mediterranean Sea operation Sophia

first_img Authorities German Navy units will no longer be taking part in operation Sophia – an EU-led effort to tackle migrant smugglers in the Mediterranean sea, German officials have announced. View post tag: Op Sophia navaltoday The Inspector of the German Navy, Vice Admiral Andreas Krause, said the decision to pull out of the operation was good news for the German Navy which would now have more at-sea days at its disposal that could be used for training. Bremen-class frigate FGS Augsburg is currently deployed to operation Sophia and will not be replaced by another German Navy ship once its deployment ends early February. View post tag: German Navy Bundeswehr Inspector General Eberhard Zorn informed members of Germany’s Defense and Foreign Affairs offices of the decision not to replace FGS Augsburg with combat support ship Berlin, German news outlet Spiegel has reported.center_img The decision on the withdrawal is reportedly the result of Italy’s refusal to allow rescued migrants to be disembarked at its ports. January 23, 2019, by Established in 2015, the EUNAVFOR MED operation Sophia is tasked with identifying, capturing and disposing of vessels and assets used by migrant smugglers or traffickers, in order to contribute to wider EU efforts to disrupt the business model of human smuggling and trafficking networks in the Southern Central Mediterranean. Back to overview,Home naval-today German Navy drops out of Mediterranean Sea operation Sophia German Navy drops out of Mediterranean Sea operation Sophia Share this articlelast_img read more

Ambition, lies, and (good) fake photos

first_imgDon’t believe everything you read in the papers, the old adage goes. Or, if it appeared in the hugely influential American politics mag The New Republic in the late 1990s and carried the by-line Stephen Glass, don’t believe anything you read. At all. Shattered Glass tells the story of real-life hotshot hack Glass (Hayden Christensen), who was fired from the magazine for making up 27 of the 41 ‘exclusive’ stories he wrote, including, crucially, an account of ambitious internet hackers which was picked up by Forbes online and exposed as being a tissue of falsehoods. The bulk of the story is a quietly gripping thriller, as the net tightens around Glass and his efforts to save his skin get more desperate. Billy Ray’s film effectively captures the atmosphere of paranoia and professional jealousy that pervades such publications, and includes some impressive performances. Peter Sarsgaard has received the lion’s share of critics’ praise, for his reinedin portrayal of Glass’s gruff editor Charles Lane. But it is Hayden Christensen, released from the role of Anakin Skywalker who surprises, displaying an acting talent hitherto unseen. Deliciously charming or incredibly irritating, depending on your point of view, he is always ready with smooth-tongued flattery, eyes innocently beaming behind his spectacles. His exposure offers punters the pleasure of seeing the slimy sycophant who is constantly making coffee and bringing the boss bagels finally getting his comeuppance. Ray’s portrayal of the group dynamics of the small, self-regarding magazine is the great strength of the film. The abuse of trust and the ease with which people will let themselves be deceived indicate the pressure on writers in a highly competitive world to make their work more attractive and entertaining, even if this involves playing around with the truth. What’s missing is any psychological insight into Glass’s fabulism. Why did he do it? Nobody seems to know, least of all Glass. Employing a device used in numerous recent films, the director mixes day-to-day reality with Glass’s fantasies in a manner both amusing and disturbing. But we are given no insight into how far Glass himself believes this fantasy: is Glass a slicker-than-youraverage con-man, a less charming version of Leonardo di Caprio’s desperate people pleaser? Or is he a deeply disturbed young man who verges on being a sociopath? There are odd paradoxes in the liberties apparently taken in telling a ‘true’ story about a journalist fired for taking liberties with the truth, and for the most part Ray simply sidesteps the whole issue of fiction versus fact by refusing to speculate on Glass’ motivation. In this respect, Shattered Glass is dangerously similar to its own protagonist – too slick for its own good. With Piers Morgan still reeling from multiple counts of false reporting, Billy Ray’s sharp, subtle account of renegade reporter Stephen Glass seems timely.ARCHIVE: 4th week TT 2004last_img read more

Readers Clear Shelves at Bustling Book Sale

first_imgToni Gheen, of Ocean City, and her son, Charlie, 4, make a morning of it at the book sale at the Ocean City Free Public Library. By Maddy VitaleToni Gheen, of Ocean City, brought her 4-year-old son Charlie to the spring book sale at the library Saturday.“There are way more books than I have seen in the sales last year,” Gheen said. “We come to a lot of activities here. Charlie is a big fan of the library.”Gheen noted that there were so many children’s books to choose from.With that, Charlie took his mother’s hand and walked her over to a section to look at some books he definitely liked. He picked up one book that had a picture of a dog on it. The book was called “Woof.”Charlie renamed it “Doggie.”Gheen laughed and Charlie’s newest selection was added to the many others they already had bought for their library at home.Hardbound books, paperbacks, fiction, nonfiction, children’s titles and even audio books and CDs were available at the event in the atrium of the library.The sale, held Friday and Saturday, was sponsored by the Friends and Volunteers of the Ocean City Free Public Library. All of the proceeds benefit the library.Jenna Vincent, of Wilmington, Del., and her daughter Avery, 7, had fun searching through boxes filled with a wide assortment of children’s books.Avery flipped through the pages of a couple of books and giggled.The little girl is involved in pony camp back home. She made her selections — books on horseback riding and an “Alvin and the Chipmunks” DVD.Avery’s wide smile said it all when it came to her choices.Avery Vincent, 7, of Wilmington, Del., proudly displays her selections.“We are here for the weekend,” Vincent said, adding they were visiting family in Ocean City. “We saw that this was on the library calendar and decided to come. I bought a huge box of antique books.”Many of the books sold at the event were donated by groups or individuals, while others were taken out of circulation from the library. Library Director Karen Mahar said Friday that the library is fortunate to have the Volunteers and Friends supporting what they do.Babs Stefano, a Historical Museum Board of Trustees member, volunteered to help out at the sale. She sat at the checkout counter and helped people with their purchases.“People are coming up with stacks of books,” Stefano pointed out.She said it was fun to watch the looks on people’s faces as they walked around with piles of books filling their arms.The book prices ranged from 50 cents to a few dollars.“It has been wonderful. Lots of families are coming out,” Stefano said, adding that it picked up through the late morning. “This is a good sale.”Customers look through tables of books, CDs, DVDs and audio books during the spring book sale.Patti Phillips, of Volunteers and Friends of the Free Public Library, said she couldn’t have been happier with the turnout and the merchandise flying off the tables.Phillips, along with Elaine Wilson and Debbie Moreland, chairs the library’s book sales. She admitted a lot of work goes into making them successful. The city helps out by supplying tables and setting up and taking down the tables.This weekend’s sale was one of several the Volunteers and Friends do at the library each year. The others will be held June 21-22, July 19-20 and Aug. 10.“Yesterday we sold a lot of children’s books,” Phillips said. “We also sold a lot of adult books. We have plenty of books on religion, CDs, DVDs and audio books, too.”Classics were a real hit throughout the two-day sale, Phillips said.“They still are big sellers,” she noted.Wilson added that the volunteers try to keep the children’s books priced low.“We want to really promote children’s reading,” Wilson explained. “A lot of teachers come and buy the books to use in their classrooms.”Volunteers said judging by the steady stream of customers at the sale, it seemed apparent that people still like a good book.“People still like to hold a book in their hands,” Phillips said. “I know I do.”The Ocean City Free Public Library is located at 1735 Simpson Ave.last_img read more

Phish Will Webcast Their Upcoming, Sold-Out Run At Dick’s In Colorado

first_imgAfter a weekend well-spent at Lockn’ Festival, beloved jam band Phish heads West for the final dates of their summer touring. The band will perform three nights at Dick’s Sporting Goods Park in Commerce City, CO, hitting the venue for their annual run of shows over Labor Day weekend. Though the shows are sold out, there’s an opportunity for all to enjoy the band’s playing through LivePhish.com.The band has announced webcasts for all three of their shows, allowing fans to follow the action from the comfort of their own couches. As per usual, there are options to pay for each show individually, or as a bundle of all three shows. There are HD and SD options available, as well as merchandise add-ons.For more information, head here.last_img

Kristin Chenoweth on That Wicked Movie That Will Eventually Get Made & More

first_img Star Files Kristin Chenoweth paid a visit to Watch What Happens Live on March 2 to celebrate the 1,000th episode of Andy Cohen’s boozy talk show. Between dishing about a whole lot of Real Housewives with Cohen and Chrissy Teigen, the self-proclaimed pocket diva reaffirmed her willingness to play Madame Morrible once the Wicked movie is finally made—a desire she expressed in the very same WWHL playhouse two years ago. Still no substantial update on that project, by the way. Later, Cheno said her dream role is Mame, in large part due to the costumes. Catch those bits, plus learn which #PumpRules men Chenoweth and Teigen would hook up with, below. Kristin Chenoweth View Comments Kristin Chenowethlast_img

Justices find time for work in the classroom

first_img Justices find time for work in the classroom Hands were raised as high as their little fingers could reach — the students were jumping up and down in their seats with total enthusiasm. What was so exciting in this fifth grade classroom? The students were participating in an exercise on the U.S. Constitution, and they had even given up their recess to meet with Justice Fred Lewis.No stranger to Florida’s public schools, Justice Lewis was visiting Beauclerc Elementary in Jacksonville with Annette Boyd Pitts, executive director of The Florida Law Related Education Association, Inc., and Sonya Hoener, a local attorney. Julie Hayden, a fifth grade teacher at Beauclerc, hosted the visit.The activity centered around the U.S. Constitution, “a topic most Americans are woefully deficient in,” Pitts said, adding, however, that in this classroom, “interest was high and minds were alert.”The presentation was lively, filled with interactive questions, historical situations, and contemporary issues. The fifth grade students had to “think constitutionally” and determine how much they valued each of their rights, Pitts said.“The students had to imagine themselves as adults in the year 2030,” Pitts said. “Then in groups, the students had to reach a consensus for the country. They had to decide which rights to keep in a challenging scenario where some of their rights would be lost.”Pitts said the exercise helps students understand how important it is to know their rights and how they impact their lives.“All of our rights are related,” one fifth grade student said. “You shouldn’t want to give up any of your rights.”The students also received pocket Constitutions which the guests autographed.Michael, another student, said: “When I get home, I am going to put my Constitution in my special drawer. I am going to save it and take it out when I become a lawyer and remember this special day when I met a Supreme Court justice.”Another student, Rade from Croatia, recited the preamble to the U.S. Constitution and part of the Declaration of Independence for Justice Lewis.“I love living in this country,” he said.This is but one snapshot from a multitude of schools visited by the Supreme Court justices each year. The justices take to the classrooms during Constitution Week and beyond to teach students about the courts and the Constitution using effective law related education teaching techniques.“This is one of my greatest joys,” said Justice Lewis, who visits schools three or more times a month. While in Jacksonville recently, Justice Lewis visited two high schools, one elementary school, and assisted Pitts with a teacher training session. This year, during Constitution Week, the justices visited elementary, middle, and high schools as well as juvenile justice facilities. Constitution Week is celebrated nationally to engage youth in better understanding the nation’s constitutional history, governmental processes, and the democratic principles which bind Americans together.Justices Barbara Pariente and Peggy Quince visited with Florida’s female juvenile offenders at the Florida Institute for Girls. The students shared their experiences in the judicial system with the two justices. Many of the young girls had spent multiple years behind bars for offenses ranging from carjacking and kidnapping to manslaughter. The facility served as their final stop before adult prison.The tables were turned this day as the girls became the judges in a Fourth Amendment search and seizure exercise, Pitts said. They participated in a healthy debate about balancing the safety and protection of society with the rights of the individual.Justice Pariente also visited Jupiter High School and the Middle School for the Arts in West Palm Beach.Chief Justice Harry Lee Anstead visited a class of students at Leon High School in Tallahassee, where the students explored a real case and simulated a Supreme Court conference activity. Asked to come back with a unanimous decision on the case, the students could not.“They were able to roll up their sleeves and tackle some of the difficult issues faced by the courts in this country,” said Pitts, who accompanied Chief Justice Anstead during the visit. “We didn’t expect them to bring back a unanimous decision; we wanted them to experience the process thoroughly and discuss the issues.”Chief Justice Anstead also shared his personal story about his humble beginnings in Jacksonville and how he grew up to serve as a Supreme Court justice.Justice Charles Wells visited his alma mater, Boone High School in Orlando, and his presentation took place in a courtroom on the high school campus that had been dedicated in his honor earlier in the year.“A lively, substantive program was delivered with ninth through 12th grade high school law students participating,” Pitts said. “Justice Wells autographed personal Constitutions for the students.” Justices find time for work in the classroomcenter_img January 15, 2003 Regular Newslast_img read more